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IBM C4B 4.51 Brick On Sled carrier 128

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1. Row A B C D 1 n c n c n c n c 2 n c n c n c n c 3 n c n c n c n c 4 n c n c n c n c 5 n c n c n c n c 6 n c n c n c n c 7 n c n c n c Device Fault 8 38V Source A 38V Source A 38V Source A 38V Source A 9 38V Source A 38V Source A 38V Source A 38V Source A 10 Ground Ground Ground Ground 11 Ground Ground Ground Ground 12 38V Source B 38V Source B 38V Source B 38V Source B 13 38V Source B 38V Source B 38V Source B 38V Source B 14 n c n c n c n c 15 n c n c n c n c 16 n c n c n c n c 17 Shield Shield Shield Shield 18 Out 1 Out 1 n2 In2 19 Out 1 Out 1 n2 n2 20 Shield Shield Shield Shield 21 In 1 In 1 Out 2 Out 2 22 Inl In 1 Out 2 Out 2 23 Shield Shield Shield Shield 24 n c n c n c n c 25 n c n c n c n c 26 n c n c n c n c 27 n c n c n c n c 28 n c n c n c n c 29 n c n c n c n c 30 n c n c n c n c 31 n c n c n c n c 32 n c n c n c n c Note n c means no connection not used means pin is reserved for this function but model CxB does not provide connection to support it Source filename ELECTRIC Table 12 Electrical Connector Contact Assignments CxB Models IBM Corporation Page 65 of 87 USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH 5 3 SSA Link Cab
2. 4 1 3 Mounting The drive can be mounted with any surface facing down The drive is available with both side and bottom mounting holes Refer to Figure 11 to Figure 13 for the location of these mounting holes for each configuration The maximum allowable penetration of the mounting screws is 3 8 mm The torque applied to the mounting screws must be 0 8 Newton meters 0 1 Newton meters The recommended torque to be applied to the mounting screw is 0 8 Newton meter 0 4 Newton meter IBM will provide technical support to users that wish to investigate higher mounting torques in their appli cation WARNING The drive may be sensitive to user mounting implementation due to frame distortion effects IBM will provide technical support to assist users to overcome mounting sensitivity Source filename MECHANIC IBM Corporation Page 51 of 87 USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH BEZEL OPTIONAL 6X 6 32UNC 2B 4X 0 5 REF 28 60 0 2 101 6 0 2 CLEARANCE 1 146 0 5 notes 1 Bottom clearance required by 4 1 2 Clearances 2 Dimensions are in millimeters Figure 11 Location of Side Mounting Holes of CIC amp C2C Models Page 52 of 87 IBM Corporation Source filename MECHANIC USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS
3. Get a reliable trigger for Seek Peak readings Source filename POWER IBM Corporation Page 29 of 87 USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH O 10 20 30 40 50 MILLISECONDS Figure 7 5 volt current during read write operations C4x Models 1 Read write baseline voltage 2 Read write pulse The width of the pulse is proportional to the number of consecutive blocks read or written The 5 volt supply must be able to provide the required current during this event Page 30 of 87 IBM Corporation Source filename POWER USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH SEEK 10 MS 3 DLE gt DLE MAX N U Z gt AN N O 20 40 60 BO 100 M S EE Figure 8 Typical 12 volt current C4x Models 1 Maximum slew rate is 7 amps millisecond 2 Maximum slew rate is 100 amps millisecond 3 Maximum slew rate is 7 amps millisecond 4 Maximum slew rate is 3 amps millisecond Source filename POWER IBM Corporation Page 31 of 87 USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH Figure 9 Typical 12 volt spin up current C4x Models 1 Maximum slew rate is 20 amps millisecond 2 Current drops off
4. Figure 23 Temperature Measurement Points for all Models bottom view 7 2 Vibration and Shock The operating vibration and shock limits in this specification are verified in two mount configurations for CxC models 1 By mounting with the 6 32 bottom holes with the drive on 2 mm clearance as required by 4 1 2 Clearances on page 51 2 By mounting on any two opposing pairs of the 6 32 side mount holes CxB models are mounted rigidly to the test fixture using the carrier guides connector and latch mechanism The test fixture is then mounted to the vibration table the test fixture must not have any resonance within the frequencies tested Other mount configurations may result in different operating vibration and shock performance Source filename OPLIMITS IBM Corporation Page 79 of 87 USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH 7 24 Drive Mounting Guidelines The following guidelines may be helpful as drive mounting systems are being designed 1 Mount the drive to its carrier rack using the four extreme side holes to ensure that the drive s center of gravity is as close as possible to the center of stiffness of the mounting 2 Do not permit any metal to metal impacts or chattering between the carrier rack and the drive or between the carrier rack and anything else Metal to metal impacts create complex shock waveforms with sh
5. see Figure 10 on page 36 Spindle Stop 8 0 sec 12 0 sec Table 5 Bring up Sequence Times and Stop Time for C4x Models Source filename BRINGUP IBM Corporation Page 37 of 87 USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH Page 38 of 87 IBM Corporation Source filename PERFORM USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH 3 0 Performance Drive performance characteristics are dependent upon the workloads run and the environments in which they are run All times listed in this chapter are typical values provided for information only so that the performance for environments and workloads other than those shown as examples can be approximated Actual minimum and maximum values will vary depending upon factors such as workload logical and physical operating envi ronments 3 1 Environment Definition Drive performance criteria is based on the following operating environment Deviations from this environ ment may cause deviations from values listed in this specification e Block lengths are formatted at 512 bytes per block The number of data buffer cache segments is 8 The total data buffer length is 512k bytes Each segment is of equal length Therefore each cache segment is 64k bytes The number of blocks of customer data tha
6. 0 02 Amps 12VDC spin up 4 2 sec max 1 5 Amps 0 1 Amps Drive power Avg idle power 11 07 Watts 35 Watts Avg R W power 30 ops sec 12 25 Watts 4 See Figure 4 on page 24 for a plot of how the read write baseline and read write pulse sum together 5 The idle average and seek peek should be added together to determine the total 12 volt peak current See Figure 5 on page 25 for a typical buildup of these currents Refer to examples on the following page to see how to combine these values 6 The current at start is the total 12 volt current required ie the motor start current module current and voice coil retract current See Figure 6 on page 26 for typical 12 volt current during spindle motor start Source filename POWER IBM Corporation Page 21 of 87 USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH 2 2 2 1 Power Calculation Examples Note The following formulas assume all system ops as a I block read or write transfer from a random cylinder while at nominal voltage condition Example 1 Calculate the mean 12 volt average current If we assume a case of 30 operations second then to compute the sum of the 12 volt mean currents the following is done mean 12VDC idle average 0 41 amps 12VDC seek average 0 0031 30 0 09 amps TOTAL 0 50 amps Example 2 Calculate the mean plus 3 sigma 12 volt average current To comp
7. 1 0 HIGH 4 2 4 Auto docking Assembly Side Rails IBM supplied side rails that can be used for the auto docking assembly are shown in Figure 17 on page 61 along with mounting location information Refer to the figure for the following notes Note 1 With the side rails mounted within the given tolerances there will be a nominal 1 5 millimeter interference between the handle and side rail to provide positive retention of the carrier and the handle Note 2 The IBM part number of the auto docking side rails is 36G6422 Page 60 of 87 IBM Corporation Source filename MECHANIC USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH 114 10 5 15 18 0 15 7 8 0 25 ss sits SS SC OF 888 Xz 2X 10 6 0 15 Figure 17 Side Rail Positioning Source filename MECHANIC IBM Corporation Page 61 of 87 USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH 4 2 5 Electrical Connector and Indicator Locations The HPC electrical connectors are located as shown in Figure 15 on page 58 The indicators LEDs are located as shown in Figure 18 on page 62 CHECK SERV READY O Figure 18 LED Locations front view CxB Models Page 62 of 87 IBM Corporation Source filename MECHANIC USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONA
8. Total power 9 13 3 0 347 10 2 watts 3 The current at start is the total 12 volt current required ie the motor start current module current and voice coil retract current See Figure 3 on page 20 for typical 12 volt current during spindle motor start Page 16 of 87 IBM Corporation Source filename POWER USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH Example 4 Calculate the 12 volt peak current To compute the sum of the 12 volt peak currents the following is done mean 12VDC idle avg 0 28 amps 12VDC seek peak 1 2 amps TOTAL 1 48 amps Example 5 Calculate the mean plus 3 sigma 12 volt peak current To compute the sum of the 12 volt peak current s 1 sigma value assume all distributions are normal There fore the square root of the sum of the squares calculation applies sigma 12VDC idle avg 0 02 amps 12VDC seek peak 0 02 amps TOTAL sqrt 0 02 2 0 02 2 0 028 amps So the mean plus 3 sigma peak current is 1 48 3 0 028 1 56 amps Things to check when measuring 12 V supply current Null the current probe frequently Be sure to let it warm up Adjust the power supply to 12 00 V at the drive terminals Use a proper window width covering an integral number of spindle revolutions e Measure values at 25 degree C casting temperature Get a reliable trigger for Seek Peak readings Source filename POWE
9. user sectors notch us nch us cyl ucyl Note Subtract lcspr from the equation above for the notch closest to the inner diameter 10 Source filename SPECS IBM Corporation Page 13 of 87 USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH 2 1 1 2 For Entire Drive 10 spares drive spr drv y spr nch notch 1 10 user sectors drive us drv y us nch notch 1 us drv logical blocks drive Iba drv INT sct lba user capacity fcap lba drv ub Iba Page 14 of 87 IBM Corporation Source filename SPECS USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH 2 2 Power Requirements by Model 2 2 1 C1x Models The following voltage specifications apply at the drive power connector There is no special power on off sequencing required The extra power needed for Brick On Sled models and the 38 V power option are described in 2 2 4 CxB Models on page 33 Input Voltage 5 Volts Supply SV 5 during run and spin up 12 Volts Supply 12V 5 during run 5 7 during spin up The following current values are the combination measured values of SCSI models and SSA Cx4 model The differences between SCSI and SSA is 5 V currents Because of different interface electronics and speed SSA electronics card requires more
10. 1 May 25th 1995 1994 Editor John Scheible Editor Norman Apperley 2 Serial Storage Architecture SSA SCSI SCSI 2 5 Ultrastar XP DFHC SSA Models Interface Spec Mapping SSA UIG 93 036 rev 01 January 20th ification AZ09 0100 04E February 20th 1995 1274 Editor John Seheible 6 Ultrastar XP DFHC SSA Models Produc Hard 3 Serial Storage Architecture SSA PH Transport ware Specification RZ09 0104 04E Jan 1 st 1994 Layer UIG95PH 9509 Revision 1 June 19th 1995 Editor Adge Hawes Source filename BIBLIOG IBM Corporation Page 87 of 87 DSMBEG323I STARTING PASS 2 OF 2 DSMAFP709E PAGE SEGMENT CADC3 EXCEEDS RIGHT PAGE BOUNDARY ON PA GE 58 DSMAFP709E PAGE SEGMENT CADC2 EXCEEDS RIGHT PAGE BOUNDARY ON PA GE 6l
11. 1 12 2 25 GB 1 0 HIGH 6X 6 32UNC 2B 4X 0 5 REF 6 35 0 5 60 0 2 101 6 0 2 CLEARANCE 1 41 3 0 5 notes 1 Bottom clearance required by 4 1 2 Clearances on page 51 2 Dimensions are in millimeters Figure 12 Location of Side Mounting Holes of C4C Models Source filename MECHANIC IBM Corporation Page 53 of 87 USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH 44 45 0 2 60 33 0 4 4X 6 32UNC 26 3 18 0 3 101 6 0 5 95 24 0 2 BEZEL 4 83 notes 1 The purpose of this drawing is to show the bottom hole pattern 2 Dimensions are in millimeters Figure 13 Location of Bottom Mounting Holes of CxC Models Page 54 of 87 IBM Corporation Source filename MECHANIC USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH 4 1 4 Unitized Connector Locations The Unitized connector is located on the left side of the top view bottom drawing as shown in Figure 14 on page 56 The jumper connector is located on the right side of the top view bottom drawing as shown in Figure 14 on page 56 This jumper connector is referred to as Front Jumper because of its front location It is reserved for IBM Engineering used only Source filename MECHANIC IBM Corporation Page 55 of 87 USER RESPONSIBLE
12. 5 V current than SCSI Read Write Base Line is 290 ma higher Idle Average is 500 ma higher 290ma and 500ma differences were found by measuring SSA Cx4 model SSA 5V current numbers are derived from SCSI 5 V current numbers by adding 290ma and 500ma accord ingly Population Population Power Supply Current Notes Mean Stand Dev 5VDC power up Minimum voltage slew rate 4 5 V sec 5VDC idle avg 1 23 Amps 0 02 Amps 5VDC R W baseline 1 25 Amps 0 05 Amps 5VDC R W pulse 36 Amps 0 06 Amps 12VDC power up Minimum voltage slew rate 7 4 V sec 12VDC idle avg 0 28 Amps 0 02 Amps 12VDC seek avg 0 0027 Amps 0 002 Amps 12VDC seek peak 1 20 Amps 0 02 Amps 12VDC spin up 3 0 sec max 1 5 Amps 0 1 Amps Drive power Avg idle power 9 51 Watts 35 Watts Avg R W power 30 ops sec 10 58 Watts See Figure 1 on page 18 for a plot of how the read write baseline and read write pulse sum together 2 The idle average and seek peek should be added together to determine the total 12 volt peak current See Figure 2 on page 19 for a typical buildup of these currents Refer to examples on the following page to see how to combine these values Source filename POWER IBM Corporation Page 15 of 87 USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH 2 2 1 1 Power Calculation Examples Note The following formu
13. Failure Analysis aaa 48 3 04 Channel Calibration 44532 eh RN SE A a GN Oe td 48 3 6 3 Save Logs and Pointers 6 2 4 4 lt b anh PAANO An a Bee AR KAG Oe A BE Har 49 36 0 DISK SWEEP 6 4 sei es BA ho AA ee Be OE Wed tw Oak a ee ae BS 49 3 6 7 SUMMALY La Pe eee ee Pa i ee ek a ae AM bei Sta AA 49 3 7 Command Timeout Limits 49 Source filename STSSHEXT IBM Corporation Page 5 of 87 USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH 4 0 Mechanicall aan AAA NP AA AA Ata UNA RK RN NG 51 4 1 Small Form Factor Models CxC 20 20 00 02000000 00 0 51 4 1 1 Weight and Dimensions 2 00 00 0 2 ee 31 2b 23 GCTEALANGESO GA Na A o nn BULA a A BAN BAG 31 ALS Mounting re AA ee ot ABG DALI A DENR Be ARA A 31 4 1 4 Unitized Connector Locations 0 2 0 0 0000 ee 55 42 Carrier Models EXB s adder ai o iS a Pe ee AA eed ad e e 57 4 2 1 Weight and Dimensions 0 0 0 0 00000022 eee 37 422 Clearances sy a a BAD ay ANAN LAG a oe Bh BRS ae AL A at AD Gn he Bee NaLang 37 4 23 Mounting 2200 DA 4 a BR ee o eee LE NGI DNNHA he hh BOR BA Ada a BA 37 4 2 4 Auto docking Assembly Side Rails 00200000000 00000 60 4 2 5 Electrical Connector and Indicator Locations 2 0020 0000 62 5 0 Electrical Interface 2 ee 63 5 1 SSA Unitized Connector 2 0 200020 00 ae ra a e ea e ee 63 Did Carrier Connector ya ca A A eat a a A a
14. Generated Ripple as seen at drive power connector Maximum Notes 5VDC 150 mV 0 20 MHz peak to peak 12VDC 150 mV 0 20 MHz peak to peak During drive start up and seeking 12 volt ripple is generated by the drive referred to as dynamic loading If several drives have their power daisy chained together then the power supply ripple plus other drive s dynamic loading must remain within the regulation tolerance window of 5 A common supply with separate power leads to each drive is a more desirable method of power distribution 2 2 6 Grounding Requirements of the Disk Enclosure The disk enclosure is at Power Supply ground potential It is allowable for the user mounting scheme to common the Disk Enclosure to Frame Ground potential or to leave it isolated from Frame Ground From a Electro Magnetic Compatibility EMC standpoint it will in most cases be preferable to common the Disk Enclosure to the system s mounting frame With this in mind it is important that the Disk Enclo sure not become an excessive return current path from the system frame to power supply The drive s mounting frame must be within 150 millivolts of the drive s power supply ground At no time should more than 35 milliamps of current 0 to 100Mhz be injected into the disk enclosure Please contact your IBM Customer Representative if you have questions on how to integrate this drive in your system 2 2 7 Hot plug unplug support Power supply and SSA link ho
15. Gnd long Sync Gnd long 4 Gnd long Gnd long Write Protect 12V 5 Line In Line In Gnd long 12V 6 Line In Line In Device Activity 12V 7 N A N A 5V Gnd long 8 N A N A Device Fault Gnd long 9 N A N A Programmable 1 5V 10 N A N A Programmable 2 SV 11 N A N A N A Power Fail 12 N A N A N A GND long 13 N A N A N A 3 3V 14 N A N A N A 3 3V 15 N A N A N A Gnd long 16 N A N A N A Gnd long Table 11 Electrical Connector Contact Assignments CxC Models 5 2 Carrier Connector Electrical connections for CxB models are provided by a single 128 pin connector mounted on the rear of the drive see Figure 15 on page 58 for location Connections are provided for two SSA ports fault sensors and indicators and power The receptacle used is a 4x32 female contact BERG HPC connector IBM part number 99F9429 Refer to Figure 20 and Table 12 on page 65 for contact assignments A Sl A329 Ca Figure 20 Carrier Interface Receptacle Page 64 of 87 IBM Corporation Source filename ELECTRIC USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH
16. HIGH SEEK 10 MS 3 DLE gt DLE MAX N U Z gt O 20 40 60 BO 100 M S E MC Figure 5 Typical 12 volt current C2x Models 1 Maximum slew rate is 7 amps millisecond 2 Maximum slew rate is 100 amps millisecond 3 Maximum slew rate is 7 amps millisecond 4 Maximum slew rate is 3 amps millisecond Source filename POWER IBM Corporation Page 25 of 87 USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH f Figure 6 Typical 12 volt spin up current C2x Models 1 Maximum slew rate is 20 amps millisecond 2 Current drops off as motor comes up to speed Page 26 of 87 IBM Corporation Source filename POWER USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH 2 2 3 C4x Models The following voltage specifications apply at the drive power connector There is no special power on off sequencing required The extra power needed for Brick On Sled models and the 38 V power option are described in 2 2 4 CxB Models on page 33 Input Voltage 5 Volts Supply SV 5 during run and spin up 12 Volts Supply 12V 5 during run 5 7 during spin up The following current values are the combination measured values of SCSI models and SSA Cx4 model The differences between SCSI and SSA is 5 V curre
17. Humidity Operating 5 to 90 noncondensing Storage 5 to 95 noncondensing Shipping 5 to 100 Applies at the packaged level Wet Bulb Temperature Operating 80 F 26 7 C maximum Shipping and Storage 85 F 29 4 C maximum Elevation Operating and Storage 1000 to 10 000 feet 304 8 to 3048 meters Shipping 1000 to 40 000 feet 304 8 to 12 192 meters Note Guidelines for storage below 1 C are given in IBM Technical Report TR 07 2112 7 1 1 Temperature Measurement Points The following is a list of measurement points and their temperatures maximum and reliability Maximum temperatures must not be exceeded at the worst case drive and system operating conditions with the drive randomly seeking reading and writing Reliability temperatures must not be exceeded at the nominal drive and system operating conditions with the drive randomly seeking reading and writing There must be significant air flow through the drive so that the casting and module temperature limits define in Table 15 are not exceeded Figure 22 on page 78 defines where measurements should be made to deter mine the top casting temperature during drive operation Figure 23 on page 79 identify the module locations on the bottom side of the card and the measurement location on the bottom of the casting Source filename OPLIMITS IBM Corporation Page 77 of 87 USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA
18. IBM Corporation Source filename STSSHEXT USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH Contents 1 0 Description ELA A ALAB DIA oS HAND ERAP EOS 8 9 Dat IREALUTES KAP RK ALA hs both ech Page Gh We ESE a Ha ele Biche NAG A LDR LA BA 9 141 1 General Features etico a EE Waaah GN GUD TB Ba de pi 9 1 1 2 Performance Summary carios MR A A PA oe ks Gee te es 9 1 1 3 Interface Controller Features 2 9 1 1 4 Reliability Features 2 2 dnt ee 10 2 Models Sa Set ec ei d NG ye Be ty he Ste ae Ga to eee Ba Sn OF cee ANY te ee dele NG ANG NT aaah GA date o 10 2 0 Specifications dd PY Ge Oe SS ee fb Ee ee amp 11 2aluGenetall ae ota oe Gee erg sheet oes SF OA Grey adi wise So BA Sorgen acess naan kaa ot Se ee Pa 11 21 1 Capacity Equations culito ea eed ae Qe es p EN GS 13 2 2 Power Requirements by Model 2 000002 a 15 NAT CAR Models 0 bs a is habal ATS A abd BAH AB Gl ed ole PGE de Sh Gad heb wed 15 DPD CIR Models ANG Ges oa eee EOS co a et eG ie anal bah es de ee ohh NG 21 252 3 LEAR Models Ti Ge ot eae BE es Ge we ese Ge Gra ane eel DAGA eo ee be Ar 27 2 24 CxXB Models Bia B Ade id Seo eae ak BAY LALA Bp ESS 33 2 2 5 Power Supply Ripple a einn t 2 ee es 34 2 2 6 Grounding Requirements of the Disk Enclosure 0 e 34 2 2 7 Hot plug unplug support 00 0000 0000000000020 00000 34 2 2 8 Bring up Sequence
19. MODELS 1 12 2 25 GB 1 0 HIGH Table 15 Maximum and Reliability Operating Temperature Limits Maximum Reliability Disk Enclosure Top 158 F 70 C 131 F 55 C Disk Enclosure Bottom 158 F 70 C 131 F 55 C PRDF Prime Module 203 F 95 C 176 F 80 C WD 61C40 Module 185 F 85 C 167 F 75 c SIC Module 203 F 95 C 176 F 80 C Microprocessor Module 194 F 90 C 167 F 75 C VCM FET 194 F 90 C 167 F 75 C DC DC Converter CxB only 185 F 85 C 167 F 75 C SMP FET 194 F 90 C 167 F 75 C Note 1 Module temperature measurements should be taken from the top surface of the module Note 2 If copper tape is used to attach temperature sensors it should be no larger than 6 square milli meters DISK ENCLOSURE TOP notes 1 dimensions are in millimeters Figure 22 Temperature Measurement Points for All Models top view of DE Page 78 of 87 IBM Corporation Source filename OPLIMITS USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH DISK ENCLOSURE 89 17 BOTTOM NOTE 1 NOTE 1 Notes 1 Center thermocouple on the top surface of the module 2 If copper tape is used to attach temperature sensors it should be no larger than 6 mm square 3 Dimensions are in millimeters 4 The connector on the left edge does not represent SSA connector
20. Note See 2 0 Specifications on page 11 for the descriptions of e tracks cyl trk cyl gross sectors track gs trk e spares cyl blspr cyl and b2spr cyl user bytes sector ub sct gross bytes sector gb sct See 3 5 Skew on page 46 for the descriptions of e track skew tss cylinder skew css Average sector times per notch can be calculated as follows e average sector time ast 1 sec 120 045 x gs trk 3 4 Approximating Performance for Different Environments Source filename PERFORM IBM Corporation Page 43 of 87 USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH 3 4 1 For Different Transfer Sizes The primary performance change due to a change of transfer size is the Data Transfer to from Disk param eter See 3 3 1 Basic Component Descriptions on page 40 for an explanation of the calculation of this parameter The Command Execution Overhead may also change if the transfer size is reduced to the point where certain internal control functions can no longer be overlapped with either the SSA Link or Disk data transfer For example a short read may incur up to 65ms extra overhead if the Data Ready Reply exchange does not overlap the disk transfer 3 4 2 When Read Caching is Enabled For read commands with Read Caching Enabled Command Execution time can be approximated by deleting Seek Latency
21. Synchronization Mode Mode Operation No Sync Spindle synchronization is disabled Slave Sync Spindle synchronization is attempted by synchronizing the spindle motor to the Sync special character on SSA link or the Sync pulse on Sync hard wire that is driven by another node Master Sync Spindle synchronization is not attempted by this device It generates a Sync special character via SSA link or a Sync pulse via a hard wire once per its spindle revo lution Master Sync Control Master Sync Control is not supported 5 7 3 Synchronization time It will take 6 seconds to synchronize the Slave drive to the Master drive While the Slave drive is synchro nizing to these characters it is not able to read or write data Once synchronized the drive will maintain 20 microseconds synchronization tolerance When operating in Slave Sync mode the drive must receive the Spindle Sync special characters at a period of 8 333 milliseconds with a tolerance of 025 2 08 microseconds 5 7 4 Synchronization with Offset The Rotational Offset value is the amount of rotational skew that the Target uses when synchronized The rotational skew is applied in the retarded direction lagging the synchronized spindle master control The value in the field is the numerator of a fractional multiplier that has 256 as its denominator e g a value of 128 indicates a one half revolution skew A value of 00h indicates that rotational offset is not used The rot
22. as motor comes up to speed Page 32 of 87 IBM Corporation Source filename POWER USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH 2 2 4 CxB Models The carrier models include a DC DC power converter device activity and fault service indicators There is no additional current required for 5V or 12V 2 2 4 1 Power supply methods When 38V is applied to the interface connector pins 38 V Source A 38V Source B and Ground the 38V supply is input to a DC DC converter that provides 12V and 5V to the drive electronics 2 2 4 2 DC DC Converter Typical efficiency of this converter is 80 at maximum output load with input voltage at 38V There are two independent 38 V power supply inputs on the interface connector which supply two inde pendent inputs to the DC DC converter 38V Source A and 38V Source B refer to Table 12 on page 65 The DC DC converter will operate while one input voltage is in the range of 34 V to 40V and the other input voltage is in the range of 0 to 40 volts Input voltage ripple must be less than 1 0 volts peak to peak at the fundamental frequency of 420 Hz maximum less than 500mv at the frequency from 421hz to 1 khz less than 100mv at the frequency greater than 1 khz The converter output is 5 volts at 0 3 amps to 2 6 amps and 12 volts at 0 3 amps to 1 4 amps continuous current The 12v output can handle a surge c
23. blocks Data transfer rates Notch 1 Notch 10 Average Buffer to from media 12 58 12 07 MB s instantaneous Host to from buffer up to 20 0 MB s synchronous sustained Data Buffer Size bytes 512 K See 3 0 Performance on page 39 for user data capacity Rotational speed RPM 7202 7 Average latency milliseconds 4 17 Track Density TPI 4352 Minimum Maximum Recording density BPI 96 567 124 970 Areal density Megabits square inch 420 3 543 9 model numbers gt Disks User Data Heads trk cyl Seek times in milliseconds Single cylinder Read Write Average weighted Read Write Full stroke Read Write Note Times are typical for a drive population under nominal voltages and casting temperature of 25 C Weighted seeks are seeks to the cylin ders of random logical block addresses LBAs Source filename SPECS IBM Corporation Page 11 of 87 USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH Total Cylinders tcyl amp User Cylinders ucyl Notch 1 Notch 2 Notch 3 Notch 4 Notch 5 Notch 6 Notch 7 Notch 8 Notch 9 Notch 10 Sum of all Notches Spares Sectors cylinder spr cyl Notch 1 Notch 2 Notch 3 Notch 4 Notch 5 Notch 6 Notch 7 Notch 8 Notch 9 Notch 10 Last cylinder extra spares Icspr User bytes sector ub sct Sectors logical bloc
24. loop digital actuator servo embedded sector servo Magnetoresistive MR heads 0 8 6 infinity 8 9 rate encoding Partial Response Maximum Likelihood PRML data channel with digital filter All mounting orientations supported Jumperable auto spindle motor start Jumperable write protection Spindle synchronization Two LED drivers Bezel optional 1 1 2 Performance Summary Average read seek time 1 12 GB 6 9 milliseconds Average read seek time 2 25 GB 7 5 milliseconds Average read seek time 4 51GB 8 0 milliseconds Average Latency 4 17 milliseconds Split read write control Media data transfer rate 9 59 to 12 58 MegaBytes second 10 bands SSA data transfer rate 20 Megabytes second 1 1 3 Interface Controller Features Multiple initiator support Supports blocksizes from 256 to 5952 bytes 512K byte multi segmented dual port data buffer Read ahead caching Adaptive caching algorithms Write Cache supported write back amp write thru Tagged command queuing Command reordering Back to back writes merged writes Split reads and writes Nearly contiguous read write Link error recovery procedure exit Disable registration Duplicate tags Two byte ULP message codes SCSI response Move data transfer messages Multiple ULP s Automatic retry and data correction on read errors Source filename DESCRIP IBM Corporation Page 9 of 87 USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPE
25. on the number of heads a particular model has The drive attempts to spread the measurements evenly in time and each measurement takes about 80 milliseconds For example a C4x model with 8 heads will perform one PFA measurement every 3 7 minutes 240 8 x 8 For the last head tested for a particular measurement type once every 1 2 hour the data is analyzed and stored The extra execution time for those occurrences is approximately 40 millisec onds This measurement analysis feature can be disabled for critical response time periods of operation by setting the Page Oh Mode Parameter LITF 1 The using system also has the option of forcing execution at known times by issuing the Rezero Unit command if the Page Oh Mode Parameter TCC 1 All tests for all heads occur at those times Note Refer to the Ultrastar XP DFHC SSA Models Interface Specification for more details about PFA LITF and TCC 3 6 4 Channel Calibration The drive periodically calibrates the channel to insure that the read and write circuits function optimally thus reducing the likelihood of soft errors Channel calibration is done once every 4 hours and typically completes in 20 milliseconds but may take up to 64 milliseconds per measurement The measurement will only be started if the drive has not received a command for at least 5 seconds This means that multiple commands are accepted and executed without delay if the commands are received by the drive within 5 seco
26. required for physically moving the heads csms which is a function of the formatted block length and recording density notch and reassign allowance sectors ras 3 used to maintain optimum performance over the normal life of the drive Note The values in the Mode Page 3 Cylinder Skew Factor are notch specific non synchronized spindle mode values The value for notch 1 is returned when the Active Notch is set to 0 Notch User bytes logical 1 2 3 4 5 6 7 8 9 10 block 256 42 42 42 40 38 36 36 36 36 32 512 28 28 27 26 25 24 24 23 22 21 22 22 21 22 22 20 524 26 26 26 25 24 24 23 22 22 20 22 22 20 20 20 20 688 22 22 22 21 20 20 20 20 18 18 744 21 21 21 20 20 20 18 18 17 17 Note Contact an IBM Customer Representative for values at other formatted block lengths Table 8 Optimal Cylinder Skew for several block lengths In order to increase the likelihood that equivalent LBA s on two or more devices are located at the same relative physical position when the devices are used in a synchronized spindle mode cylinder skew is calcu lated differently The cylinder skew calculations do not take into account known defective sites To prohibit revolutions from being missed on cylinder crossings by drives formatted while in a synchronized spindle mode an extra allowance for 6 defects is added that is not added when optimally formatted in a non synchronized mode 3 5 2 Tr
27. 112 108 105 102 90 528 128 128 126 120 112 112 108 105 101 90 600 115 115 115 110 102 101 97 90 90 90 688 102 102 102 98 90 90 90 90 81 78 744 96 96 96 90 90 90 81 T8 TI 73 Table 1 Gross sectors per track for several block lengths C4x Models C2x Models C1x Models User bytes formatted logical formatted logical formatted logical logical block capacity blocks capacity blocks capacity blocks bytes drive bytes drive bytes drive 256 3 654 540 800 14 275 550 1 826 312 448 7 134 033 912 135 680 3 563 030 520 4 375 536 880 8 414 494 2 186 554 760 4 204 913 1 092 119 600 2 100 230 522 4 374 300 492 8 379 886 2 185 931 898 4 187 609 1 091 803 716 2 091 578 524 4 385 878 952 8 369 998 2 191 716 460 4 182 665 1 094 691 544 2 089 106 4 408 629 984 1 100 365 728 2 084 026 600 4 512 402 000 7 520 670 2 254 925 400 3 758 209 1 126 282 800 1 877 138 688 4 604 578 976 6 692 702 2 300 969 904 3 344 433 1 149 310 880 1 670 510 744 4 675 830 192 6 284 718 2 336 559 528 3 140 537 1 167 099 408 1 568 682 Table 2 User capacity for several block lengths 2 1 1 Capacity Equations 2 1 1 1 For Each Notch The next group of equations must be calculated separately for each notch ub lba bytes sect b sct user bytes sector ub sct sct Iba user sectors cyl us cyl sct trk trk cyl spr cyl spares notch spr nch spr cyl ucyl Note Add Icspr to the equation above for the notch closest to the inner diameter 10
28. BM Corporation Page 67 of 87 USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH 5 5 9 Programmable pin 1 Option Port Pin 9 This pin can be used by a manufacturer for what ever purposes it desires within the specified definition electrical characteristic and the availability of microcode This pin is completely controlled by microcode Refer to the Option Pins section of the Ultrastar XP DFHC SSA Models Interface Specification for a detailed functional description of this pin This pins is not accessible externally on CxB models 5 5 10 Programmable pin 2 Option Port Pin 10 This pin is reserved and it is not connected to any internal logic This pins is not accessible externally on CxB models 5 5 11 Early Power Off Warning or Power Fail Power Port Pin 11 The Early Power Off Warning input pin on CxC models can be used to indicate to the drive that a power loss will occur by pulling this signal to ground The input must provide a minimum of 6 milliseconds warning before power falls below operating specifications in order for the drive to stop its activities and handle the fault Refer to the Option Pins section of the Ultrastar XP DFHC SSA Models Interface Specification for a detailed functional description of the fault handling associated with this pin This pin is not accessible on CxB models 5 5 12 12V Charge and 5V Charge Powe
29. CATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH Install Defect Free percentage 99 99 percent 6 10 Periodic Maintenance None required 6 11 ESD Protection The Ultrastar XP SSA disk drives contain electrical components sensitive to damage due to electrostatic discharge ESD Proper ESD procedures must be followed during handling installation and removal This includes the use of ESD wrist straps and ESD protective shipping containers 6 12 Connector Insertion Cycles Live insertion and removal of the electrical connector causes pitting on the connector terminals Because of this the number of live insertion and removal cycles must be limited Maximum Insertion Removal Cycles for hot and normal insertion 25 Page 76 of 87 IBM Corporation Source filename POH USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH 7 0 Operating Limits The IBM Corporate specifications and bulletins such as C S 1 9700 000 in the contaminants section that are referenced in this document are available for review Please contact your IBM Customer 7 1 Environmental Temperature Operating Ambient 41 to 131 F 5 to 55 C Operating Casting Temperature 41 to 158 F 5 to 70 C Storage 34 to 149 F 1 to 65 C See Note Shipping 40 to 149 F 40 to 65 C Temperature Gradient Operating 36 F 20 C per hour Shipping and storage below condensation
30. CIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH Automatic sector reallocation In line alternate sector assignment for high performance Improved technique for down loadable SSA firmware 1 1 4 Reliability Features Self diagnostics on power up Dedicated head landing zone Automatic actuator latch Embedded Sector Servo for improving on track positioning capability Buffer memory parity Longitudinal Redundancy Check LRC on Customer Data ECC on the fly Error logging and analysis Data Recovery Procedures DRP Predictive Failure Analysis PFA Atm No preventative maintenance required Two Field Replaceable Units FRU s Electronics Card and Head Disk Assembly HDA Probability of not recovering data 10 in 10 bits read 1 2 Models The Ultrastar XP SSA disk drive is available in various models as shown below The Ultrastar XP SSA data storage capacities vary as a function of model and user block size The emerging industry trend is capacity points in multiples of 1 08GB i e 1 08 2 16 4 32 at a block size of 512 bytes Future IBM products will plan to provide capacities that are consistent with this trend Users that choose to make full use of the Ultrastar XP SSA drive capacity above the standard capacity points may not find equivalent capacity breakpoints in future products 1 12 Brick On Sled Carrier 128 pin HPC 1 12 3 5 inch Small
31. DELS 1 12 2 25 GB 1 0 HIGH 3015 EF i 3ANS0 DNA 30 112 6 Note Dimensions are in millimeters Figure 15 Dimensions CxB Models Page 58 of 87 IBM Corporation Source filename MECHANIC USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH Figure 16 Handle Docking and Ejection System The handle on the carrier is used for insertion into and extraction from the drawer It also provides enough force to ensure seating of the carrier electrical receptacle with the mating connector Referring to Figure 16 with the handle in the STOP or open position a carrier inserted into the auto docking assembly will have the connector guide pins inserted into the carrier receptacle but the connector pins will not be making contact with the carrier receptacle Moving the carrier handle to the CAM IN position and eventually to the LOCKED position sets the auto docking connector with the carrier receptacle and holds the carrier in all the mounting positions listed above Moving the handle from the LOCKED position to the EJECT position provides leverage via the cam surface on the handle acting against the side rails to separate the connector pins from the receptacle Source filename MECHANIC IBM Corporation Page 59 of 87 USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB
32. E FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH 3 3 2 1 Theoretical Data Sector Transfer Rate This Rate does not account for time required for error recovery or defective sectors the Typical Data Sector Transfer Rate described in 3 3 1 Basic Component Descriptions on page 40 does include those effects Each group of cylinders with a different number of gross sectors per track is called a notch The following shows values for notch 1 of C4x models The Average values used in this specification are sums of the individual notch values weighted by the number of LBAs in the associated notches For the other notches and block lengths use values that correspond to those notches and block lengths Data Sector Transfer Rate Bytes cylinder time for 1 cyl track skews 1 cyl skew Bytes cylinder tracks cyl gross sectors track spares cyl user bytes sector 16 135 40 512 1 085 440 Bytes cyl time for 1 cyl of data tracks cyl gross sectors track spares cyl avg sector time 16 135 40 061705 130 815 msec cyl time for track skews tracks cyl 1 track skew avg sector time 16 1 13 061700 12 032 msec cyl time for 1 cyl skew cylinder skew avg sector time 25 061705 1 543 msec cyl Data Sector Transfer Rate 1 085 440 Bytes 130 815 msec 12 032 msec 1 543 msec 7 517 MB sec Notch 1
33. FF 38 pin Unitized 2 25 Brick On Sled carrier 128 pin HPC 2 25 3 5 inch Small FF 38 pin Unitized 4 51 Brick On Sled carrier 128 pin HPC 4 51 3 5 inch Small FF 38 pin Unitized Note CxB models C1B C2B and C4B include a DC DC converter activity and check indicators Note Please refer to section 2 1 1 Capacity Equations on page 13 for exact capacities based on user block size Page 10 of 87 IBM Corporation Source filename DESCRIP USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH 2 0 Specifications All specifications are nominal values unless otherwise noted The Ultrastar XP SSA data storage capacities vary as a function of model and user block size The emerging Industry trend is capacity points in 1 08GB i e 1 08 2 16 4 32 at a block size of 512 bytes This and future products will always plan to provide capacities that are consistent with this trend Users that choose to make full use of the Ultrastar XP SSA drive capacity above the standard capacity points may not find equivalent capacity breakpoints in future products 2 1 General Note The recording band located nearest the disk outer diameter OD is referred to as Notch 1 While the recording band located nearest the inner diameter ID is called Notch 10 Average values are weighted with respect to the number of LB As per notch when the drive is formatted with 512 byte
34. FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH Figure 14 Electrical connectors rear and top view CxC Models Page 56 of 87 IBM Corporation Source filename MECHANIC USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH 4 2 Carrier Models CxB The carrier model assemblies include the disk drive drawer mounting hardware rails latching mechanism and connector and DC DC power converter 4 24 Weight and Dimensions C1B 4 C2B Models 4B Models Weight 2 00 pounds 0 92 kilograms 2 80 pounds 1 288 kilograms Height 1 75 inches 44 5 millimeters 1 75 inches 44 5 millimeters Q lin Width 4 26 inches 108 3 millimeters 4 26 inches 108 3 millimeters Depth 10 72 inches 272 3 millimeters 10 72 inches 272 3 millimeters Refer to Figure 15 on page 58 for detailed dimensions 4 2 2 Clearances For proper cooling a clearance of 6 millimeters should be provided above and below the carrier surfaces Adequate airflow is needed in order to meet the operating specifications Maximum temperatures are speci fied for critical drive components in Table 15 on page 78 4 2 3 Mounting The drive can be mounted with any surface facing down The carrier is designed to be plugged into an auto docking assembly The auto docking assembly contains an e
35. I 1 2 Vibration and SHOCK 6 0 0 4 S49 he eek ok KANA ee Ge ee a ek BG eo l aiea 79 7 2 1 Drive Mounting Guidelines 2 2 2 0 2 0 0 00 2p ee 80 722 Output Vibration Limits 0 2000 oan EE ee 80 7 2 3 Operating Vibration 2 i e R e e R A E a A a aal a e a E Y ah e 80 TZA OperatimerSOOCK edt sash AR E UI A Sh hh es 82 2 3 N noperane Shock i emie a a BAN NG A e PAL ka a Soa dat p 82 1 3 Contaminants aa k hb oye kang od Pob g BAN OS e o he Aha Ng es eed ba na Pa 82 TA ACOUsUG LEVE1S tk Bi aa BANG LG NAE aaah bh Ba BAI AR RG KABA LA Nap BALA 83 ALAN AUN HA 85 Si Salety ay a na MAN nln ae is eee A ek LG BA Ba DN KAG or a 85 8 2 Electromagnetic Compatibility EMC 020 0 0020000002000 048 85 Bibliography 6 2 2c awe wee te A A A I ee She ae a 87 Source filename STSSHEXT IBM Corporation Page 7 of 87 USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH Page 8 of 87 IBM Corporation Source filename STSSHEXT USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH 1 0 Description 1 1 Features 1 1 1 General Features 1 12 2 25 4 51 gigabytes formatted capacity 512 bytes sector Serial Storage Architecture SSA attachment dual port Brick On Sled carrier and 3 5 small form factor models Rotary voice coil motor actuator Closed
36. IBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH Hot plugging the SSA link will be recognized by the next node which will cause a configuration process to be started by the Initiators During hot plugging the supplies must not go over the upper voltage limit This means that proper ESD protection must be used during the plugging event During hot un plugging if the operating shock limit specification can be exceeded then the drive should be issued a Start Stop Unit command spin down that is allowed to complete before un plugging Source filename POWER IBM Corporation Page 35 of 87 USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH 2 2 8 Bring up Sequence and Stop Times Power Up Start Up lt a oad Bs Complete Spin Up Init Servo Upload Code BATS2 Reassigns etc lt B Ba Reset Initalize and Test of drive s controller Then enable SSA Link Auto Start function enabled File ready to accept or Start Unit command Read and Write commands issued at this time Power On Figure 10 Start Time Diagram Note BATS is the abbreviation for Basic Assurance Tests Start up sequence spins up the spindle motor initializes the servo subsystem up loads code performs BATS2 verifies read write hardware resumes Reassign in Progress opera
37. IFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH Model Type C4x C1x Notch Instant Theoretical Typical Theoretical Typical Theoretical Typical Average 7 10 7 06 7 03 1 7 44 7 40 7 37 2 7 44 7 40 TST 3 7 15 7 11 7 08 4 6 95 6 92 6 89 5 6 60 6 57 6 54 6 6 35 6 31 6 28 7 6 16 6 13 6 10 8 5 97 5 94 5 91 9 5 80 5 77 5 74 10 5 50 5 48 5 45 Note The values for Typical Data Sector Transfer Rates assume a typically worst case value of 3 16 errors in 10 bits read at nominal conditions for soft error rate Note Contact an IBM Customer Representative for values when formatted at other block lengths Note Average values are sums of the individual notch values weighted by the number of LBAs in the associated notches Table 7 Data Sector Transfer Rates All rates are in MB sec Data Transfer to from SSA Link The time required to transfer data between the SSA link and the drive s internal data buffer that is not overlapped with the time for the Seek Latency or Data Transfer to from Disk When the drive is reading data is transferred from the medium to its data buffer and from the buffer across the SSA link simultaneously However data transfer to the link from the data buffer buffer lags transfer from the medium to the buffer by one block At the end of the transfer from the medium one block still has to be transferred across the link For a write operation the data is
38. ION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH Termination Bus termination of the SYNC signals is internal to the drive This signal has a 5 1K ohm pulled up to the 5 volt supply A maximum of 30 drives can have their SYNC line daisy chained together Vio lating this could damage the Master drive line driver on the SYNC line It is the using system s responsibility to provide the cable to connect the SYNC line where needed of the synchronized drives e Bus Characteristics maximum Bus length 6 meters 2 micro second negative active pulse when sourced by drive minimum of 1 micro second negative active pulse when externally sourced 0 8 volts valid low input 2 2 volts valid high input 0 4 volts low output Vcc volts High output 30 milli amps maximum output low level sink current The driver used for these two signal lines is a Open Drain buffer Source filename SYNC IBM Corporation Page 71 of 87 USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH Page 72 of 87 IBM Corporation Source filename RELIABLE USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH 6 0 Reliability Note The reliability projections are based on the conditions stated below All of the SSA models will
39. L SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH 5 0 Electrical Interface 5 1 SSA Unitized Connector Electrical connections for CxC models are provided by a single connector mounted on the rear of the drive see Figure 14 on page 36 Connections are provided for two SSA ports fault sensors and indicators option customization and power Refer to Figure 19 and Table 11 on page 64 for contact assignments SSA UNITIZED CONNECTOR SSA PORT SSA PORT OPTION PORT POWER PORT SSA PORTS long pin long pin Lina In Gnd Line Gut Lina Out Gnd Une In 2 4 6 1 3 5 Line In Gnd Line Out Line Gut Gnd Line In long pin long pin OPTION PORT Bay Gnd Test long Moda Device mable 2 Fault Activity Protect Start POWER PORT 12 Gnd Power Gnd Gnd Charge 3 3V Fall 5V long 12V long lang 11 1 a 7 12 8 2 Gnd 5V ens Paa long 5V long ia lee Ga Figure 19 Unitized Connector looking in the file at the connector end Source filename ELECTRIC IBM Corporation Page 63 of 87 USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH Pin SSA PORT SSA PORT OPTION PORT POWER PORT 1 Line Out Line Out MTM 12V Charge long 2 Line Out Line Out Auto Start SV Charge long 3 Gnd long
40. L SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH Note A timeout of one minute or more is recommended but NOT required The larger system timeout limit allows the system to take advantage of the extensive ERP DRP that the drive may attempt in order to successfully complete the start up sequence Note A 60 second minimum is required if electronics card replacement is required as a service practice Please contact an IBM Customer Representative for more details if required Medium Access Command Time The timeout limit for medium access commands that transfer user data and or non user data should be a minimum of 30 seconds These commands are Log Select e Read Defect Data Send Diagnostic Log Sense Read Long e Verify Mode Select e Receive Diagnostic Results Write Mode Sense Release Write and Verify Pre Fetch Reserve Write Buffer Read e Rezero Unit Write Long Read Capacity Seek Write Same Note The 30 sec limit assumes the absence of SSA link contention and user data transfers of 64 blocks or less This time should be adjusted for anticipated SSA link contention and if longer user data transfers are requested Timeout limits for other commands The drive should be allowed a minimum of 5 seconds to complete these commands Format Unit with Immed bit 1 Request Sense Inquiry Start Stop Unit with Immed bit 1 e Read Buffer e Synchronize Cache Read Memory Test Uni
41. ODELS 1 12 2 25 GB 1 0 HIGH Preface This document details the product hardware specification for the Ultrastar XP SSA family of Direct Access Storage Devices The capacity model offerings are 1 12 2 25 and 4 51 GBytes see 2 1 1 Capacity Equations on page 13 for exact capacities based on model and block size The form factor offerings are Brick On Sled carrier and 3 5 inch small form factor refer to 4 1 1 Weight and Dimensions on page 51 for exact dimensions This document in conjunction with the Ultrastar XP DFHC SSA Models Interface Specification make up the Functional Specification for the Ultrastar XP SSA DFHC product The product description and other data found in this document represent IBM s design objectives and is provided for information and comparative purposes Actual results may vary based on a variety of factors and the information herein is subject to change THIS PRODUCT DATA DOES NOT CONSTITUTE A WARRANTY EXPRESS OR IMPLIED Questions regarding IBM s warranty terms or the methodology used to derive the data should be referred to your IBM customer representative Note Not all models described in this document are in plan Contact your IBM customer representative for actual product plans Source filename PREFACE IBM Corporation Page 3 of 87 USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH Page 4 of 87
42. OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH 4 51 GB 1 6 HIGH 3 5 FORM FACTOR DISK DRIVE VERSION 5 0 August 15 1995 Publication number 3304 IBM Corporation Source filename STSSHEXT IBM Corporation Page 1 of 87 USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH This document is preliminary and the contents are subject to change without notice Equiries suggestions and requests for additional copies may be directed to OEM Engineering IBM Corporation 5600 Cottle Road San Jose CA 95193 USA IBM may use any information that you supply without incurring any obligation IBM may have patents or pending patent applications covering subject matter in this document The fur nishing of this document does not give you any license to these patents You can send license inquiries in writing to Director of Commercial Relations IBM Corporation Armonk NY 10577 USA Copyright International Business Machines Corporation 1994 All rights reserved Note to U S Government Users Documentation related to restricted rights Use duplication or disclo sure os subject to restrictions set forth in GSA ADP Schedule Contract with IBM Corp Page 2 of 87 IBM Corporation Source filename PREFACE USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA M
43. R IBM Corporation Page 17 of 87 USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH O 10 20 30 40 50 MILLISECONDS Figure 1 5 volt current during read write operations C1x Models 1 Read write baseline voltage 2 Read write pulse The width of the pulse is proportional to the number of consecutive blocks read or written The 5 volt supply must be able to provide the required current during this event Page 18 of 87 IBM Corporation Source filename POWER USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH SEEK 10 MS 3 lt IDLE gt me MAX N U Z gt O 20 40 60 BO 100 M S EE Figure 2 Typical 12 volt current C1x Models 1 Maximum slew rate is 7 amps millisecond 2 Maximum slew rate is 100 amps millisecond 3 Maximum slew rate is 7 amps millisecond 4 Maximum slew rate is 3 amps millisecond Source filename POWER IBM Corporation Page 19 of 87 USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH Figure 3 Typical 12 volt spin up current C1x Models 1 Maximum slew rate is 20 amps millisecond 2 Current drops off as motor comes up to speed Page 20 of 87 IBM Corporation Source filename POWER USER
44. RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH 2 2 2 C2x Models The following voltage specifications apply at the drive power connector There is no special power on off sequencing required The extra power needed for Brick On Sled models and the 38V power option are described in 2 2 4 CxB Models on page 33 Input Voltage 5 Volts Supply SV 5 during run and spin up 12 Volts Supply 12V 5 during run 5 7 during spin up The following current values are the combination measured values of SCSI models and SSA Cx4 model The differences between SCSI and SSA is 5 V currents Because of different interface electronics and speed SSA electronics card requires more 5V current than SCSI Read Write Base Line is 290 ma higher Idle Average is 500 ma higher 290ma and 500ma differences were found by measuring SSA Cx4 model SSA 5V current numbers are derived from SCSI 5V current numbers by adding 290ma and 500ma accord ingly Population Population Power Supply Current Notes Mean Stand Dev 5VDC power up Minimum voltage slew rate 4 5 V sec 5VDC idle avg Po 123 Amps 0 02 Amps 5VDC R W baseline 1 25 Amps 5VDC R W pulse 36 Amps 0 06 Amps 12VDC power up Minimum voltage slew rate 7 4 V sec 12VDC idle avg 0 41 Amps 0 02 Amps 12VDC seek avg 0 0031 Amps 0 0002 Amps 12VDC seek peak 120 Amps
45. STAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH Table 17 Non operating Vibration Levels Frequency 3 hz to 7 hz 7 hz to 200 hz Amplitude 0 8 inch DA 2 0 G peak 7 2 4 Operating Shock No permanent damage will occur to the drive when subjected to a 10 G half sine wave shock pulse of 11 milliseconds duration No permanent damage will occur to the drive when subjected to a 10 G half sine wave shock pulse of 2 millisecond duration The shock pulses are applied in either direction in each of three mutually perpendicular axis one axis at a time 7 2 5 Nonoperating Shock Translational Shock No damage will occur if the un packaged drive is not subjected to a square wave shock greater than a faired value of 35 Gs applied to all three axis for a period of 20 milliseconds one direction at a time No damage will occur if the un packaged drive is not subjected to an 11 millisecond half sine wave shock greater than 70 Gs applied to all three axis one direction at a time No damage will occur if the un packaged drive is not subjected to a 2 millisecond half sine wave shock greater than 125 Gs applied to all three axis one direction at a time Rotational Shock No damage will occur if the un packaged drive is not subjected to an 11 millisecond half sine wave shock greater than 7 000 radians per second squared applied to all three axis one direction at a time No damage will occur if the unpackaged drive is not subjec
46. a 12 volt peak current To compute the sum of the 12 volt peak current s 1 sigma value assume all distributions are normal There fore the square root of the sum of the squares calculation applies sigma 12VDC idle avg 0 03 amps 12VDC seek peak 0 02 amps TOTAL sqrt 0 03 2 0 02 2 0 036 amps So the mean plus 3 sigma peak current is 1 61 3 0 036 1 72 amps Things to check when measuring 12 V supply current Null the current probe frequently Be sure to let it warm up Adjust the power supply to 12 00 V at the drive terminals e Use a proper window width covering an integral number of spindle revolutions e Measure values at 25 degree C casting temperature Get a reliable trigger for Seek Peak readings Source filename POWER IBM Corporation Page 23 of 87 USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH O 10 20 30 40 50 MILLISECONDS Figure 4 5 volt current during read write operations C2x Models 1 Read write baseline voltage 2 Read write pulse The width of the pulse is proportional to the number of consecutive blocks read or written The 5 volt supply must be able to provide the required current during this event Page 24 of 87 IBM Corporation Source filename POWER USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0
47. able misuse would expose the user to toxic carcinogenic or otherwise hazardous substances at levels above the limitations identified in the current publications of the organizations listed below International Agency for Research on Cancer IARC National Toxicology Program NTP Occupational Safety and Health Administration OSHA American Conference of Governmental Industrial Hygienists ACGIH California Governor s List of Chemical Restricted under California Safe Drinking Water and Toxic Enforcement Act 1986 also known as California Proposition 65 SECONDARY CIRCUIT PROTECTION REQUIRED IN USING SYSTEMS IBM has exercised care not to use any unprotected components or constructions that are particularly likely to cause fire However adequate secondary overcurrent protection is the responsibility of the user of the product Additional protection against the possibility of sustained combustion due to circuit or component failure may need to be implemented by the user with circuitry external to the product Over current limit to the drive of 10 Amps or less should provide sufficient protection 8 2 Electromagnetic Compatibility EMC FCC Requirements Pertaining to the disk drive IBM will provide technical support to assist users in complying with the United States Federal Communications Commission FCC Rules and Regulations Part 15 Subpart J Computing Devices Class A and B Limits Tests for conformance to this requirement are
48. ack to Track Skew Note The values in the SCSI Mode Page 3 Track Skew Factor are notch specific values The value for notch 1 is returned when the Active Notch is set to 0 Page 46 of 87 IBM Corporation Source filename PERFORM USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH Notch User bytes logical block 9 0 9 0 9 600 1 11 1 1 10 0 0 9 9 9 9 8 8 744 9 9 9 9 9 9 8 8 8 7 Note Contact an IBM Customer Representative for values at other formatted block lengths Table 9 Track or Head Skew for several block lengths 3 6 Idle Time Functions The execution of various functions by the drive during idle times may result in delays of commands requested by initiators Idle time is defined as time spent by the drive not executing a command requested by a initiator The functions performed during idle time are 1 Servo Run Out Measurements Servo Bias Measurements Predictive Failure Analysis PFA Channel Calibration Save Logs and Pointers Disk Sweep ONY SO The command execution time for commands received while performing idle time activities may be increased by the amount of time it takes to complete the idle time activity The messages and data exchanged across the SSA link are not affected by idle time activities Note Command Timeout Limits do not ch
49. and Data Transfer to from Disk components if all of the requested data is available in a cache segment cache hit Command Execution Overhead increases by approximately 1ms in this case as there is no overlap with seek latency When some but not all of the requested data is available in a cache segment partial cache hit Data Transfer to from Disk will be reduced but not eliminated Seek and Latency may or may not be reduced depending upon the location of requested data not in the cache and location of the read write heads at the time the command was received The contribution of the Data Transfer to from SSA link to the Command Execution time may increase since a larger or entire portion of the transfer may no longer be overlapped with the components that were reduced 3 4 3 When Write Caching is Enabled For write commands with the Write Caching Enabled WCE Mode parameter bit set Command Execution time can be approximated by deleting Seek Latency and Data Transfer to from Disk components The contribution of the Data Transfer to from SSA link to the Command Execution time may increase since a larger or entire portion of the transfer may no longer be overlapped with the components that were reduced The reduced times effectively are added to the Post Command Processing Time Command completion status is returned when data is completely stored in the buffer The time to transfer this group of data to the disk will be added to the perfor
50. and Stop Times 36 3 0 Performancey 0 thie AE DEA ead ee NA ined 39 3 1 Environment Definition eur KG Re ee we GNG GNG RG DB AG 39 3 2 Workload Definition isis LG PRN LET ee OY LE hi NA LAGE HG 39 3 2 Sequential 2 426 405 diet NLA eas Rae eee LAKE edd 6 nh 40 S252 RAMO ie a Ble deo edt Me Ge teat NAN Motel MM ah e Plan BM ANG Sh NAG BG a NGH MAG A A BOT 40 3 3 Command Execution Time arpi aa 40 3 3 1 Basic Component Descriptions 0 2 200002 40 32302 COMMENTS ha HE KAB oe ha es ht o eo eee DM Look DA ee eh RS 42 3 4 Approximating Performance for Different Environments aaa aaa a a 43 3 4 1 For Different Transfer Sizes e a a a e o do a aae a a p a 44 3 4 2 When Read Caching is Enabled 00 2 0 0000000 pee eee 44 3 4 3 When Write Caching is Enabled 0 2 00000002 pee ee 44 3 44 When Adaptive Caching is Enabled 0 0 00000 000222 e 44 3 4 5 When Read ahead is Enabled 0 200 000002 pee ee 44 3 4 6 When No Seek is Required 45 3 4 7 For Queued Commands 0 0 0 0 0 00 a 45 3 4 8 Out of Order Transfers 0 00 0 00 a A E E a a a a E e a 45 IOS SKEW AA 46 3 5 1 Cylinder to Cylinder Skew ee 46 335 2 Track to Track Skew Ha la ee KANNADA NAG be A BAG AA 46 3 6 Idle Time FUNCUONS ral Ze at a a e KANG Bet ac hoh BG HANYA 47 3 6 1 Servo Run Out Measurements 0 200000 pe 48 3 6 2 Servo Bias Measurements 2 0 00 2 ee 48 3 6 3 Predictive
51. ange due to idle time functions All Idle Time Functions have mechanisms to lessen performance impacts for critical response time periods of operation And in some cases virtually eliminate those impacts from an Initiator s point of view All Idle Time Functions will only be started if the drive has not received a SCSI command for at least 5 seconds 40 seconds for Sweep This means that multiple SCSI commands are accepted and executed without delay if the commands are received by the drive within 5 seconds after the completion of a previous SCSI command This mechanism has the benefit of not requiring special system software such as issuing SCSI Rezero Unit commands at known amp fixed time intervals in order to control if and when this function executes Note Applications which can only accommodate Idle Time Function delays at certain times but can not guarantee a 5 second re instruction period may consider synchronizing idle activities to the system needs through use of the LITF bit in Mode Select Page O and the Rezero Unit command Refer to the Ultrastar XP DFHC SSA Models Interface Specification for more details Following are descriptions of the various types of idle functions how often they execute and their duration Duration is defined to be the maximum amount of time the activity can add to a command when no errors occur No more than one idle function will be interleaved with each command Following the descriptions is a summary o
52. ational offset is only used when the Drive is running in the Slave Sync RPL mode 5 7 5 Synchronization Route 5 7 5 1 Over SSA Link Spindle Sync special characters are forwarded from one SSA link to the other with a delay of 350 nanoseconds with a tolerance of 50 nanoseconds This delay can be increased by 50 nanoseconds when the drive is sending the second of a double character sequence RR or ACK and by 50 nanoseconds when sending a SAT or SAT character Source filename SYNC IBM Corporation Page 69 of 87 USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH The spindle synchronization timing requirements are met in a string composed of Ultrastar XP SSA drives when there are no more than seventeen drives between the one operating in Master Sync mode and the furthest drive operating in Slave Sync mode 5 7 5 2 Over Sync Hard wire There will be a single wire that connects all the drives together throught the SSA Option Port pin 3 Sync pin One of these drives will be a Master drive Two potential configurations of this hard wire connection are shown in the following figures SSA CONNECTOR SYNC WIRE ONE SSA STRING OR LOOP SSA STRING OR LOOP MULTIPLE SSA STRINGS OR LOOPS Figure 21 Two examples of Daisy Chain Connection of Synchronization Page 70 of 87 IBM Corporation Source filename SYNC USER RESPONSIBLE FOR VERIFYING VERS
53. bort increases the Command Execution Overhead by 23ms 3 4 6 When No Seek is Required For a Read command the additional Command Execution Overhead when no seek is required is approxi mately 50ms For a Write it is approximately 70ms 3 4 7 For Queued Commands If commands are sent to the drive when it is busy performing a previous command they can be queued In this case some of the command processing is performed during the previous command and the overhead for the queued command is reduced by approximately 20 milliseconds 3 4 7 1 Reordered Commands If the Queue Algorithm Modifier Mode Parameter field is set to allow it commands in the device command queue may be executed in a different order than they were received Commands are reordered so that the seek portion of Command Execution time is minimized The amount of reduction is a function of the location of the 1st requested block per command and the rate at which the commands are sent to the drive A Queue Algorithm Modifier Mode Parameter value of 9 enables an algorithm that gives the using system the ability to place new commands into the drive command queue execution order relative to the out standing commands in the queue For example if a request is sent to the drive that the using system prior itizes such that it s completion time is more important than one or more of the outstanding commands the using system can increase the likelihood that command is executed before th
54. e Data Transfer size is set to 64 Blocks Source filename PERFORM IBM Corporation Page 39 of 87 USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH The time between the end of an operation and when the next operation is issued is 50 msec a random value of 0 to 50 msec unless otherwise noted 3 2 1 Sequential e No Seeks The target LBA for all operations is the previous LBA 64 3 2 2 Random All operations are to random LBAs The average seek is an average weighted seek 3 3 Command Execution Time Command execution or service times are the sum of several Basic Components Seek Latency Command Execution Overhead Data Transfer to from Disk 5 Data Transfer to from SSA Link O The impact or contribution of those Basic Components to Command Execution Time is a function of the workload being sent to the drive and the environment in which the drive is being operated 3 3 1 Basic Component Descriptions Seek The average time from the initiation of the seek to the acknowledgement that the R W head is on the track that contains the first requested LBA Values are population averages and vary as a function of operating conditions The values used to determine Command Execution Times for sequential commands is O milliseconds and the values for random commands are shown in section 2 0 Specifications on page 11 Latency Th
55. e average time required from the activation of the read write hardware until the target sector has rotated to the head and the read write begins This time is 1 2 of a revolution of the disk or 4 17 milliseconds Command Execution Overhead The average time added to the Command Execution Time due to the processing of the command It includes all time the drive spends not doing a disk operation or SSA link data transfer The following values are used when calculating the Command Execution Times Workload Command Execution Sequential Read 65 ms Sequential Write 1 00 ms Random Read 25 ms Random Write 30 ms Table 6 Overhead Values A number of Initiator controlled factors affect Command Execution Overhead These are exam ined separately in 3 4 Approximating Performance for Different Environments on page 43 Page 40 of 87 IBM Corporation Source filename PERFORM USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH The Post Command Processing time of 26 ms is defined as the average time required for process cleanup after the command has completed If a re instruct period faster than this time is used the difference is added to the Command Execution Overhead of the next operation Data Transfer to from Disk The average time used to transfer the data between the media and the drive s internal data buffer This is calculated f
56. er to redefine the option pins to whatever functions it desires while allowing the shipped product to return to the standard definitions in the customers environment All models CxC and CxB reserve this pin but it is not connected to any internal logic 5 5 2 Auto Start Pin Option Port Pin 2 A low active input pin that when active pulled below 0 8 V on CxC model causes the drive motor to spin up and become ready for media access operations after power is applied without the need to receive a Start Stop Unit command When inactive pulled above 2 0 V the drive motor shall not spin up until after the receipt of a Start Stop Unit command The signal is to be sampled by the device at power on or hard reset or soft reset conditions Refer to the Option Pins section of the Ultrastar XP DFHC SSA Models Interface Specification for a detailed functional description of operations associated with this pin This pin is not accessible on CxB models 5 5 3 Sync Pin Option Port Pin 3 The Sync input output pin on CxC model can be used for synchronizing among devices The synchroniza tion is achieved by having one device uses this pin as output to transmit one sync character once per its spindle revolution The other node may use this pin as an input and synchronize their spindle revolution position to match the Sync signal The SSA network provide Sync character over SSA link but this option pin allows synchronization across multiple SSA netwo
57. f the failure characteristics over total product life MTBF includes normal integration induced installation early life latent and intrinsic failures MTBF is predicated on supplier qualification product design verification test and field performance data 6 7 1 Sample Failure Rate Projections The following tables are for reference only The tables contain failure rate projections for a given set of user conditions Similar projections will be provided upon request for each user specific power on hour and power cycles per month condition Contact your IBM customer representative for a customized projection Application Electronics only RA MM o e o Po Sp Nn Con An om wy E ae ae ae ef ee a 3 nod O 500POH MM 0 00120 0 0010 0 00096 0 00036 2 1 730POH MM 0 00160 0 00140 0 00125 0 00047 2 8 Table 13 Projected failure rates for the electronics only Application Electronics and HDA RA MM vo o 2 o ay Nn a N m EA jea ae zz z5 oi a 3 nod O 500POH MM 0 00150 0 00130 0 00120 0 00050 3 0 730POH MM 0 00200 0 00170 0 00160 0 00070 4 1 Table 14 Projected failure rates for the entire drive Electronics and HDA 6 8 SPQL Shipped product quality level LA vintage Ultimate 13th month Targets 25 10 6 9 Install Defect Free Source filename POH IBM Corporation Page 75 of 87 USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFI
58. f the possible impacts to performance Source filename PERFORM IBM Corporation Page 47 of 87 USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH 3 6 1 Servo Run Out Measurements The drive periodically measures servo run out the amount of wobble on each disk to track follow more precisely Servo run out for all heads is measured every 60 minutes therefore the frequency of run out measurements is dependent on the number of heads a particular model has The drive attempts to spread the measurements evenly in time and each measurement takes 100 milliseconds For example a model C4x with 8 heads per forms one run out measurement every 7 1 2 minutes 60 8 3 6 2 Servo Bias Measurements The drive periodically measures servo bias the amount of resistance to head movement as a function of disk radius It also helps prevent disk lubrication migration by moving the heads over the entire disk surface Servo bias is measured every 12 minutes during the first hour after a power cycle and every 60 minutes after that The measurement takes 200 milliseconds 3 6 3 Predictive Failure Analysis Predictive Failure Analysis measures drive parameters and can predict if a drive failure is imminent Fight different PFA measurements are taken for each head All measurements for all heads are taken over a period of 4 hours therefore the frequency of PFA is dependent
59. ification for the definition of QPE Qualify Post Error Source filename RELIABLE IBM Corporation Page 73 of 87 USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH 25 Power on off cycles per month 500 power on hours per month 6 5 Power on off cycles Maximum on off cycles 1080 year 6 6 Useful Life Product Life 5 Years Useful life is the length of time prior to the point at which product degradation begins to occur The specifi cation for the useful life calculation is the same as that for the MTBF specification Page 74 of 87 IBM Corporation Source filename POH USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH 6 7 Mean Time Between Failure MTBF The mean time to failure target is 1 000 000 device hours per fail 3 096 CDF based on the following assumptions e 6000 power on hours per year 500 power on hours per month times 12 months 300 average on off cycles per year 25 power cycles per month times 12 months Seeking Reading Writing is assumed to be 20 of power on hours Approximately 10 read write oper ations per second Operating at or below the Reliability temperature specifications See Table 15 on page 78 and nominal voltages See 2 2 Power Requirements by Model on page 15 Note MTBF is a measure o
60. k sct Iba User bytes logical block ub Iba Sectors track sct trk Page 12 of 87 All models C4x Models C2x Models C1x Models tcyl ucyl ucyl ucyl 1893 1879 1877 1872 956 955 955 955 49 48 48 48 310 309 309 309 349 348 348 348 116 115 115 115 214 213 213 213 190 189 189 189 131 130 130 130 208 206 206 206 4416 4392 4390 4385 C4x Models C2x Models C1x Models 40 20 10 40 20 10 38 19 10 37 19 9 36 18 9 34 17 9 33 17 8 32 16 8 31 16 8 30 15 7 256 744 even number of bytes only 1 8 The lowest sct lba that satisfies the following rules is used 1 Block Length is evenly divisible by a number 2 8 2 Quotient of previous equation is evenly divisible by 2 3 Quotient must be gt 256 and lt 744 256 5952 See rules for determining sct lba above for determining sup ported ub lba values See Table 1 on page 13 or contact an IBM Customer Representative for other block lengths IBM Corporation Source filename SPECS USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH Notch User bytes 1 2 3 4 5 6 7 8 9 10 logical block 256 216 216 216 202 195 180 180 180 180 162 512 135 135 130 126 120 115 112 108 105 100 520 128 128 128 123 115 112 108 105 102 99 522 128 128 128 122 115 112 108 105 102 90 524 128 128 128 120 115
61. las assume all system ops as a I block read or write transfer from a random cylinder while at nominal voltage condition Example 1 Calculate the mean 12 volt average current If we assume a case of 30 operations second then to compute the sum of the 12 volt mean currents the following is done mean 112 VDC idle average 0 28 amps 112 VDC seek average 0 027 30 0 081 amps TOTAL 0 361 amps Example 2 Calculate the mean plus 3 sigma 12 volt average current To compute the sum of the 12 volt mean current s 1 sigma value assume all the distributions are normal Therefore the square root of the sum of the squares calculation applies Assume a case of 30 operations second sigma 112 VDC idle average 0 02 amps 12VDC seek average sqrt 30 0 0002 2 0 001 amps TOTAL sqrt 0 02 2 001 2 0 02 amps So the mean plus 3 sigma mean current is 0 361 3 0 02 0 42 amps Example 3 Power Calculation Nominal idle drive power 1 23 Amps 5 Volts 0 28 Amps 12 Volts 9 51 Watts Nominal R W drive power at 30 ops sec 1 25 Amps 5 Volts 0 361 Amps 12 Volts 10 58 Watts Mean plus 3 sigma drive power for 30 random R W operations second Assume that the 5 volt and 12 volt distributions are independent therefore the square root of the sum of the squares applies 5VDC 1 sigma power 0 05 5 0 25 watts 12VDC 1 sigma power 0 02 12 0 24 watts Total 1 sigma power sqrt 0 25 2 0 24 2 0 347 watts
62. le The SSA link cable must meet the specifications described in the Electrical Specifications section of Serial Storage Architecture SSA PH Transport Layer X3T10 1 94 015 rev 01 54 SSA Link Electrical Characteristics The drive SSA link line driver line receiver and line receiver termination are fully compliant with the specifi cations described in the Electrical Specifications section of Serial Storage Architecture SSA PH Transport Layer X3T10 1 94 015 rev 01 5 5 Option Pins and Indicators Ultrastar XP SSA drives contain option pins and or indicators used to sense and report fault conditions and to enable certain features of the drive The electrical characteristics and requirements of these pins are fully compliant with the specifications described in the Electrical Specification section of Serial Storage Architec ture SSA PH Transport Layer X3T10 1 989D rev 01 The existence and definition of these pins are model dependent Refer to Figure 14 on page 56 and Figure 18 on page 62 for locations of pins and LEDs on the front of the drive Refer to Table 11 on page 64 and Table 12 on page 65 for locations of pins on the rear of the drive 5 5 1 Manufacturing Test Mode Option Port Pin 1 A low active input pin that when active pulled below 8V makes pins 2 3 4 6 8 9 and 10 available to be redefined Pins 5 and 7 must remain Ground and 5 V respectively One possible purpose for this pin is to allow a manufacturing test
63. lectrical receptacle that provides connections for DC power SSA interface signals and fault sensing and reporting signals see 5 2 Carrier Connector on page 64 The carrier design allows for positive retention of the carrier in all axes when plugged into the auto docking assembly In addition the carrier retention provides a force to bottom out the carrier auto docking connector into the auto docking assembly and main tain a force of 5 pounds minimum 40 pounds maximum The mating connector should contain two guide pins to align the carrier receptacle during seating These guide pins are BERG part number 77693 014 IBM part number 72G0343 or AMP equivalent part number 1 532808 1 IBM part number 19G6789 The guide pin length should be 26 04 millimeters while the thread depth depends upon the thickness of the circuit board the connector is mounted to The guide pins should be tied to the docking assembly frame ground Note The connector pins must be lubricated to insure seating of the carrier into the auto docking assembly The type of lubricant recommended is Stauffer CL 920 or equivalent WARNING The drive may be sensitive to user mounting implementation due to frame distortion effects IBM will provide technical support to assist users to overcome mounting sensitivity Source filename MECHANIC IBM Corporation Page 57 of 87 USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MO
64. mance of any next command that was in the queue 3 4 4 When Adaptive Caching is Enabled The Adaptive Caching feature attempts to increase Read Cache hit ratios by monitoring workload and adjusting cache control parameters normally determined by the using system via the Mode Parameters with algorithms using the collected workload information 3 4 5 When Read ahead is Enabled If read ahead is active the service time is affected in several ways If the data requested by a read command is all in the data buffer already the command can be serviced very quickly If the beginning of the requested data is in the buffer and the read ahead is still in progress data transfer Page 44 of 87 IBM Corporation Source filename PERFORM USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH for the command can start immediately This effectively avoids latency time for read operations sequen tial on a previous read If the data requested by a read operation is not in the read ahead buffers there is an increase in the command overhead time due to the time spent searching the buffers This time depends on the number of buffer segments selected by the Mode Select command If read ahead is still in progress when the next command is received and the data requested is not sequential the drive aborts read ahead and starts the command The time to perform this a
65. meet the projections as long as reliability operating conditions are not exceeded 6 1 Error Detection Error reporting gt 99 All detected errors excluding interface and BATs 1 Basic Assur ance Test errors Error detection gt 99 FRU isolation 100 To the device when the Recommended Initiator Error Recovery Procedures in the Ultrastar XP DFHC SSA Models Interface Specification are followed No isolation to sub assemblies within the device are specified 6 2 Data Reliability Probability of not recovering data 10 in 10 bits read Recoverable read errors 10 in 10 bits read measured at nominal DC conditions and room environment with default error recovery QPE Probability of miscorrecting unrecoverable data Note Eighteen bytes of ECC and two bytes of LRC are provided for each data block 6 3 Seek Error Rate The drives are designed to have less than 10 errors in 10 000 000 seeks In the field a seek error rate of 40 in 100 000 seeks will trip PFA Predictive Failure Analysis error The drives are designed to achieve Soft Seek Error rate of 1 error in 100 000 000 seeks 6 4 Power On Hours Examples Maximum power on hours with minimum power on off cycles 43 800 hours for life based on 5 Power on off cycles per month 730 power on hours per month Nominal power on hours with nominal power on off cycles 30 000 hours for life based on Refer to Ultrastar XP DFHC SSA Models Interface Spec
66. n 6 A low active LED output pin on CxC models can be used to drive an external Light Emitting Diode CxB models have an integrated Green LED Refer to the Option Pins section of the Ultrastar XP DFHC SSA Models Interface Specification for a detailed functional description of this pin LED CxC models provide up to 24 mA of TTL level LED sink current capability Current limiting for the LED is provided on the electronics card The anode may be tied to the 5 V power source provided on the the unitized connector The LED Cathode is then connected to the Device Activity pin to complete the circuit 5 5 7 5V Option Port Pin 7 The 5V output pin on CxC and CxB models shall supply up to 1 0 Amp of current limited 5 V 10 as long as power is supplied to the device 5 5 8 Device Fault Pin Indicator Option Port Pin 8 The Device Fault pin on CxC models can be used to drive an external Light Emitting Diode CxB models have an integrated Amber LED Refer to the Option Pins section of the Ultrastar XP DFHC SSA Models Interface Specification for a detailed functional description of this pin LED CxC models provide up to 24 mA of TTL level LED sink current capability Current limiting for the LED is provided on the electronics card The anode may be tied to the 5 V power source provided on the the unitized connector The LED Cathode is then connected to the Device Fault pin to complete the circuit Source filename ELECTRIC I
67. nds after the completion of a previous command This function also makes use of the mechanism to alter the idle detection period to limit execution for critical response time periods of operation if needed Page 48 of 87 IBM Corporation Source filename PERFORM USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH 3 6 5 Save Logs and Pointers The drive periodically saves data in logs in the reserved area of the disks The information is used by the drive to support various commands and for the purpose of failure analysis Logs are saved every 35 minutes The amount of time it takes to update the logs varies depending on the number of errors since the last update In most cases updating those logs and the pointers to those logs will occur in less than 30 milliseconds 3 6 6 Disk Sweep The heads are moved to another area of the disk if the drive has not received a command for at least 40 seconds After flying in the same spot for 9 minutes the heads are moved to another position Execution time is less than 1 full stroke seek 3 6 7 Summary Idle Time Function Type Max Frequency of Occurrence Duration ms Mechanism to Delay Disable minutes Servo Run Out 60 trk cyl 100 Re instruction Period Servo Bias lt 1st hour 12 200 Re instruction Period PFA 30 trk cyl 80 Re instruction Period LITF Channel Calibration 240 64 Re in
68. normally transferred to the data buffer during the seek and latency time In the rare case that these are both zero the write cannot begin until one sector is transferred and the time to do this becomes part of the overhead Each block of data is transferred as one or more frames on the SSA Link Each frame requires 10 bytes of overhead and may contain up to 128 bytes of data The time to transfer one block depends on the number of frames required For example a 744 byte block needs 6 frames 5 x 128 byte 1 x 104 This adds 60 bytes of overhead making 804 bytes total At an instantaneous transfer rate of 20MB s that is 40 microseconds per block 17 7MB s sustained 3 3 2 Comments Overlap has been removed from the Command Execution Time calculations The components of the Command Execution Times are truly additive times to the entire operation For example The Post Command Processing times are not components of the Command Execution time therefore they are not included in the calculation of environments where the re instruct period exceeds the Post Command Processing time The effects of idle time functions are not included in the above examples The 3 2 1 Sequential on page 40 and 3 2 2 Random on page 40 both define environments where the effects due to increased command overhead of Idle Time Functions upon Command Execution time are less than 0 15 Page 42 of 87 IBM Corporation Source filename PERFORM USER RESPONSIBL
69. nts Because of different interface electronics and speed SSA electronics card requires more 5V current than SCSI Read Write Base Line is 290 ma higher Idle Average is 500 ma higher 290ma and 500ma differences were found by measuring SSA Cx4 model SSA 5V current numbers are derived from SCSI 5V current numbers by adding 290ma and 500ma accord ingly Population Population Power Supply Current Notes Mean Stand Dev 5VDC power up Minimum voltage slew rate 4 5 V sec 5VDC idle avg 126 Amps 0 02 Amps 5VDC R W baseline 1 27 Amps 5VDC R W pulse 36 Amps 0 06 Amps 12VDC power up Minimum voltage slew rate 7 4 V sec 12VDC idle avg 0 77 Amps 0 03 Amps 12VDC seek avg 0 0036 Amps 0 0002 Amps 12VDC seek peak 13 Amps 0 02 Amps 12VDC spin up 8 5 sec max 2 2 Amps 0 1 Amps Drive power Avg idle power 15 54 Watts 44 Watts Avg R W power 30 ops sec 16 91 Watts 7 See Figure 7 on page 30 for a plot of how the read write baseline and read write pulse sum together The idle average and seek peek should be added together to determine the total 12 volt peak current See Figure 8 on page 31 for a typical buildup of these currents Refer to examples on the following page to see how to combine these values 2 The current at start is the total 12 volt current required ie the motor start current module current and voice coil retract current See Figure 9 on page 32 for typical 12 v
70. odels 1 5 gram millimeters maximum for C4x model 7 2 3 Operating Vibration The vibration is applied in each of the three mutually perpendicular axis one axis at a time Referring to Figure 24 on page 81 the x axis is defined as a line normal to the front rear faces the y axis is defined as a line normal to the left side right side faces and the z axis is normal to the x y plane WARNING The Ultrastar XP SSA drives are sensitive to rotary vibration Mounting within using systems should minimize the rotational input to the drive mounting points due to external vibration IBM will provide technical support to assist users to overcome problems due to vibration Random Vibration For excitation in the x direction and the y direction the drive meets the required throughput specifications when subjected to vibration levels not exceeding the V4 vibration level defined below For excitation in the z direction the drive meets the required throughput specifications when subjected to vibration levels not exceeding the V4S vibration level defined below Note The RMS value in the table below is obtained by taking the square root of the area defined by the g hz spectrum from 5 to 500 hz Page 80 of 87 IBM Corporation Source filename OPLIMITS USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH Table 16 Random Vibration Levels Class 5 hz 17 h
71. olt current during spindle motor start Source filename POWER IBM Corporation Page 27 of 87 USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH 2 2 3 1 Power Calculation Examples Note The following formulas assume all system ops as a I block read or write transfer from a random cylinder while at nominal voltage condition Example 1 Calculate the mean 12 volt average current If we assume a case of 30 operations second then to compute the sum of the 12 volt mean currents the following is done mean 112 VDC idle average 0 77 amps 12VDC seek average 0 0036 30 0 11 amps TOTAL 0 88 amps Example 2 Calculate the mean plus 3 sigma 12 volt average current To compute the sum of the 12 volt mean current s 1 sigma value assume all the distributions are normal Therefore the square root of the sum of the squares calculation applies Assume a case of 30 operations second sigma 112 VDC idle average 0 02 amps 12VDC seek average sqrt 30 0 0002 2 0 001 amps TOTAL sqrt 0 02 2 001 2 0 02 amps So the mean plus 3 sigma mean current is 0 88 3 0 02 0 94 amps Example 3 Power Calculation Nominal idle drive power 1 26 Amps 5 Volts 0 77 Amps 12 Volts 15 54 Watts Nominal R W drive power at 30 ops sec 1 27 Amps 5 Volts 0 88 Amps 12 Volts 16 91 Watts Mean plus 3 sigma drive power for 30 random R W o
72. ort periods such waveforms can excite high frequency modes of the components inside the drive 3 The carrier rack should not allow the drive to rotate in the plane of the disk and the carrier rack itself should be mounted so that it does not rotate in the plane of the disk when the drive is running Even though the drive uses a balanced rotatory actuator its position can still be influenced by rotational accel eration 4 Keep the rigid body resonances of the drive away from harmonics of the spindle speed Consider not only the drive as mounted on its carrier but also when the drive is mounted to a carrier and then the carrier is mounted in a rack the resonances of the drive in the entire system must be considered 7200 RPM Harmonics 120 hz 240 hz 360 hz 480 hz 5 When the entire system rack is vibration tested the vibration amplitude of the drive as measured in all axis should decrease significantly for frequencies above 300 hz 6 Consider the use of plastics or rubber in the rack carrier design Unlike metal these materials can dampen vibration energy from other drives or fans located elsewhere in the rack 7 Rather that creating a weak carrier rack that flexes to fit the drive carrier hold the mounting gap to tighter tolerances A flexible carrier rack may contain resonances that cause operational vibration and or shock problems 7 2 2 Output Vibration Limits spindle imbalance 1 0 gram millimeters maximum for C1x C2x m
73. ose others by using a tag value greater than those outstanding commands 3 4 7 2 Back To Back Commands If consecutive read write commands access contiguous data they can be serviced without incurring disk latency between commands Note There is a minimum transfer length for a given environment where continuous access to the disk can not be maintained without missing a motor revolution For Write commands with Write Caching enabled the likelihood is increased that shorter transfers can fulfill the requirements needed to maintain continuous writing to the disk Back to back Read is only enabled if Read ahead is disabled 3 4 8 Out of Order Transfers Two bits in the SCSI Command message control out of order transfers OOTM applies to transfers to from the media and OOTI applies to transfers to from the interface SSA Link The benefit from setting OOTM increases as the transfer length approaches one disk revolution This affects both reads and writes and is due to the reduction in latency Source filename PERFORM IBM Corporation Page 45 of 87 USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH The full benefit of out of order transfers in only achieved if OOTI is also set Read data is transferred on the interface in the same order as it was read from the media 3 5 Skew 3 5 1 Cylinder to Cylinder Skew Cylinder skew is the sum of the sectors
74. perations second Assume that the 5 volt and 12 volt distributions are independent therefore the square root of the sum of the squares applies 5 VDC 1 sigma power 0 05 5 0 25 watts 12VDC 1 sigma power 0 03 12 0 36 watts Total 1 sigma power sqrt 0 25 2 0 36 2 0 44 watts Total power 15 46 3 0 44 16 8 watts Page 28 of 87 IBM Corporation Source filename POWER USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH Example 4 Calculate the 12 volt peak current To compute the sum of the 12 volt peak currents the following is done mean 12VDC idle avg 0 77 amps 12VDC seek peak 1 3 amps TOTAL 2 07 amps Example 5 Calculate the mean plus 3 sigma 12 volt peak current To compute the sum of the 12 volt peak current s 1 sigma value assume all distributions are normal There fore the square root of the sum of the squares calculation applies sigma 12VDC idle avg 0 02 amps 12VDC seek peak 0 02 amps TOTAL sqrt 0 02 2 0 02 2 0 028 amps So the mean plus 3 sigma peak current is 2 07 3 0 028 2 1 amps Things to check when measuring 12 V supply current Null the current probe frequently Be sure to let it warm up Adjust the power supply to 12 00 V at the drive terminals Use a proper window width covering an integral number of spindle revolutions e Measure values at 25 degree C casting temperature
75. performed with the disk drive mounted in the using system VDE Requirements Source filename STANDARD IBM Corporation Page 85 of 87 USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH Pertaining to the disk drive IBM will provide technical support to assist users in complying with the requirements of the German Vereingung Deutcher Elektriker VDE 0871 6 78 both the Individual Operation Permit IOP and the General Operation Permit GOP Limits CSPR Requirements Pertaining to the disk drive IBM will provide technical support to assist users in complying with the Comite International Special des Perturbations Radio Electriques International Special Committee on Radio Interference CISPR 22 Class A and B Limits e European Declaration of Conformity Pertaining to the disk drive IBM will provide technical support to assist users in complying with the European Council Directive 89 336 ECC so the final product can thereby bear the CE Mark of Con formity Page 86 of 87 IBM Corporation Source filename STANDARD USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH Bibliography 1 Serial Storage Architecture SSA PH Transport 4 Serial Storage Architecture SSA SCSI 2 Protocol Layer X3T10 1 989 D rev 01 January 19th UIG 95SP 9508 Revision
76. r Port pin 1 and 2 These pins are longer than the others They help to reduce current spikes during hot plug Each pin require a resistor not in the drive in series between the power source and the drive connector This allows for more controlled current draw as prior to other voltage pins It is up to the subsystem to determine the proper resistance to add to these pins to meet the 10 voltage drop limitations and the current draw limitation of the connector These pins are not accessible on CxB models 5 6 Front Jumper Connector All models contain a jumper block refer to Figure 14 on page 56 that is reserved for IBM Engineering use only Page 68 of 87 IBM Corporation Source filename ELECTRIC USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH 5 7 Spindle Synchronization 5 7 1 Synchronization overview Spindle synchronization of drives is achieved by one node transmitting a special Sync character or a Sync pulse once per every revolution of its drive The transmitting is done either on SSA Link sending Sync character or on a hard wire Sending Sync pulse that connects all the drives via the SSA Option Port Sync pin The synchronization mode is controlled by the RPL field of the Mode Select Page 04h parameter see Ultrastar XP DFHC SSA Models Interface Specification for more details The drive can operate in one of three modes 5 7 2
77. rks or allow tighter latency of the Sync pulse Refer to Figure 21 on page 70 for examples of Synchronization connection Page 66 of 87 IBM Corporation Source filename ELECTRIC USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH The width period and tolerance of the negative active Sync pulse is manufacturer dependent and thus syn chronization across different manufacturers or even different product lines of the same manufacturer is not guaranteed The Sync pin usage is controlled by mode pages within the mode select command This pin is not accessible on CxB model 5 5 4 Write Protect Option Port Pin 4 a low active input pin that when active pulled below 0 8 V the drive will prohibit commands that alter the customer data area portion of the the media from being performed The state of this pin is monitored on a per command basis Refer to Option pins section of the Ultrastar XP DFHC SSA Models Interface Specification for a detailed functional description of this pin This pin is not accessible on CxB models 5 5 5 Ground long Option Port Pin 5 The Ground long output pin on CxC and CxB models shall be capable of syncing 1 0 Amp of current This pin is longer than any others in the option block to allow for the ground to mate first or last in a hot plug or hot unplug situation 5 5 6 Device Activity Pin Indicator Option Port Pi
78. rom Data Transferred Media Transfer Rate There are four interpretations of Media Transfer Rate How it is to be used helps decide which interpretation is appropriate to use 1 Instantaneous Data Transfer Rate The same for a given notch formatted at any of the supported logical block lengths It varies by notch only and does not include any overhead 2 Track Data Sector Transfer Rate Varies depending upon the formatted logical block length and varies from notch to notch It includes the overhead associated with each individual sector This is calculated from user bytes sector individual sector time Contact an IBM Customer Representative for individual sector times of the various for matted block lengths 3 Theoretical Data Sector Transfer Rate Also includes time required for track and cylinder skew and overhead associated with each track See 3 3 2 1 Theoretical Data Sector Transfer Rate on page 43 for a description on how to calculate it 4 Typical Data Sector Transfer Rates Also includes the effects of defective sectors and skipped revolutions due to error recovery See Appendix B of the Ultrastar XP DFHC SSA Models Interface Specification for a description of error recovery procedures Rates for drives formatted at 512 bytes block are located in Table 7 on page 42 Source filename PERFORM IBM Corporation Page 41 of 87 USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPEC
79. seeking at a rate between 28 and 32 seeks per second 4 The mean of a sample size of 10 or greater will be less than or equal to the stated mean with 95 confidence Source filename OPLIMITS IBM Corporation Page 83 of 87 USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH Page 84 of 87 IBM Corporation Source filename STANDARD USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH 8 0 Standards 8 1 Safety UNDERWRITERS LABORATORY UL APPROVAL The product is approved as a Recognized Component for use in Information Technology Equipment according to UL 1950 without any Code 3 deviations The UL Recognized Component marking is located on the product CANADIAN STANDARDS ASSOCIATION CSA APPROVAL The product is certified to CAN CSA C22 2 No 950 M89 without any D3 deviations The CSA certification mark is located on the product INTERNATIONAL ELECTROTECHNICAL COMMISSION IEC STANDARDS The product is certified to comply to EN60950 IEC 950 with European additions by TUV Rheinland The TUV Rheinland Bauart mark is located on the product SAFE HANDLING The product is conditioned for safe handling in regards to sharp edges and corners ENVIRONMENT IBM will not knowingly or intentionally ship any units which during normal intended use or foresee
80. struction Period Save Logs amp Pointers 35 30 Re instruction Period Note Re instruction Period is the time between consecutive SCSI command requests Table 10 Summary of Idle Time Function Performance Impacts 3 7 Command Timeout Limits The Command Timeout Limit is defined as the time period from when the SCSI command message is received by the drive until the corresponding SCSI status message is transmitted by the drive The following times are for environments where Automatic Reallocation is disabled and there are no queued commands Reassignment Time The drive should be allowed a minimum of 45 seconds to complete a Reassign Blocks command Format Time The time to complete a Format Unit command with Immed bit 0 varies by model C4x 45 minutes C2x 25 minutes Cix 15 minutes Initiators should also use this time to allow format sequences initiated by Format Unit commands with Immed bit 1 to compete and place the drive in a ready for use state Start Stop Unit Time The drive should be allowed a minimum of 30 seconds to complete a Start Stop Unit command with Immed bit 0 Initiators should also use this time to allow start up sequences initiated by auto start ups and Start Stop Unit commands with Immed bit 1 to complete and place the drive in a ready for use state Source filename PERFORM IBM Corporation Page 49 of 87 USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONA
81. t Ready When Automatic Reallocation is enabled add 45 seconds to the timeout of the following commands Read 6 Read 10 Write 6 Write 10 Write and Verify and Write Same The command timeout for a command that is not located at the head of the command queue should be increased by the sum of command timeouts for all of the commands that are performed before it is Page 50 of 87 IBM Corporation Source filename PERFORM USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH 4 0 Mechanical 4 1 Small Form Factor Models CxC 4 1 1 Weight and Dimensions C1C C2C Models C4C Models Weight 1 00 pounds 0 46 kilograms 1 80 poun 0 82 kilograms 1 00 inches 25 4 millimeters 1 63 inches 41 3 millimeters 4 00 inches 101 6 millimeters 4 00 inches 101 6 millimeters j lin 5 75 inches 146 0 millimeters 5 75 inches 146 0 millimeters 4 1 2 Clearances A minimum of 2 mm clearance should be given to the bottom surface except for a 10 mm maximum diam eter area around the bottom mounting holes Figure 11 and Figure 12 show the clearance requirements Note 1 For proper cooling it is suggested that a clearance of 6 mm be provided under the drive and on top of the drive There should be 7 mm of clearance between drive s that are mounted with their top sides see Figure 22 on page 78 for top view of drive facing each other
82. t can fit into one segment is reduced because 2 bytes of LRC information is also stored in the segment for each block of customer data stored in the segment There fore use the following equation to determine how many blocks can fit into one segment 512KB of segments ub lba 2 Ten byte Read and Write commands are used SSA environment consists of a single initiator and single target with no SSA link contention The Initiator delay in responding to messages from the Target is assumed to be zero All performance enhancing functions are disabled except where noted More specifically Commands are not queued Caching is disabled RCD 1 WCE 0 Out of order transfers are not allowed OOTM 0 OOTI 0 The media is formatted with the skew definition that optimizes the disk data transfer rate for un synchronized spindle operation All Current Mode Parameters are set to their Default values except where noted Averages are based on a sample size of 10 000 operations 3 2 Workload Definition The drive s performance criteria is based on the following command workloads Deviations from these workloads may cause deviations from this specification e Operations are either all Reads or all Writes The specifications for Command Execution Time with Read Ahead describe exceptions to this restriction For that scenario all commands are preceded by a Read command except for sequential write commands Th
83. t plug and un plug is allowed for all SSA models For Form Factor models there is no special sequence required for connecting 5 volt 12 volt or ground During a hot plug in event the drive being plugged will draw a large amount of current at the instant of plug in This current spike is due to charging the bypass capacitors on the drive This current pulse may cause the power supply to go out of regulation If this supply is shared by other drives then a low voltage power on reset may be initiated on those drives Therefore the recommendation for hot plugging is to have one supply for each drive Never daisy chain the power leads if hot plugging is planned Hot plugging should be minimized to prevent wear on the power connector The carrier models may be hot plugged ONLY IF the ground pins longer pin make contact first before other pins which are shorter Vice versa the carrier may be hot unplugged ONLY IF the ground pins longer pins are the last to remove after other pins which are shorter DAMAGE TO THE FILE ELEC TRONICS AND THE ADAPTER ELECTRONICS COULD RESULT IF THE ABOVE CONDITIONS ARE NOT MET The mating HPC connector MUST HAVE PROGRAMMABLE PIN LENGTH GND PINS MUST BE LONGER THAN SIGNAL AND POWER PINS THE GUIDE PINS MUST BE TIED TO THE DOKING ASSEMBLY FRAME GND 10 This ripple must not cause the power supply to the drive to go outside of the 5 regulation tolerance Page 34 of 87 IBM Corporation Source filename POWER USER RESPONS
84. ted to a 2 millisecond half sine wave shock greater than 15 000 radians per second squared applied to all three axis one direction at a time 7 3 Contaminants The corrosive gas concentration expected to be typically encountered is Subclass Gl the particulate environ ment is expected to be PI of C S 1 9700 000 1 89 Page 82 of 87 IBM Corporation Source filename OPLIMITS USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH 7 4 Acoustic Levels Upper Limit Sound Power Requirements Bels for Clx C2x Models Octave Band Center Frequency Hz A weighted see notes AS A EEE a maman Additionally the population average of the sound pressure measured one meter above the center of the drive in idle mode will not exceed 36 dB Upper Limit Sound Power Requirements Bels for C4x Models a Octave Band Center Frequency Hz A weighted see notes fries aso coo ax ak ae a sium Additionally the population average of the sound pressure measured one meter above the center of the drive in idle mode will not exceed 41 dBA Notes 1 The above octave band and maximum sound power levels are statistical upper limits of the sound power levels See C B 1 1710 027 and C S 1 1710 006 for further explanation 2 The drive s are tested after a minimum of 20 minutes warm up in idle mode 3 The operating mode is simulated by
85. tions and more For more information on the start up sequence refer to the Ultrastar XP DFHC SSA Models Interface Specification Note If a RESET is issued before the drive comes ready the power on sequence will start again In all other cases when a RESET is issued the present state of the motor is not altered Note Reference Start Stop Unit Time on page 49 for additional details Note See 5 7 Spindle Synchronization on page 69 for details about Start up time increases when the device is requested via Mode Parameters to synchronize the spindle motor to another device Event Maximum Notes Power up 2 0 sec see Figure 10 Start up 45 sec see Figure 10 Spin up 29 2 sec see Figure 10 Spindle Stop 12 0 sec Table 3 Bring up Sequence Times and Stop Time for C1x Models Page 36 of 87 IBM Corporation Source filename BRINGUP USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH Event Nominal Maximum Notes Power up 1 5 sec 2 0 sec see Figure 10 Start up 17 6 sec 45 sec see Figure 10 Spin up 13 2 sec 29 2 sec see Figure 10 Spindle Stop 9 0 sec 12 0 sec Table 4 Bring up Sequence Times and Stop Time for C2x Models Event Nominal Maximum Notes Power up 1 5 sec 2 0 sec see Figure 10 on page 36 Start up 16 5 sec 45 sec see Figure 10 on page 36 Spin up 11 17 sec 30 9 sec
86. urrent of 2 2 amps in 9 seconds The total input current to the converter is 1 6A amps when the highest input voltage on the power supply input pins is 34 volts and the converter outputs are operating at full load The input current ripple due to converter switching is no more than 100 milliamps peak to peak at 1 MHz Maximum inrush current is limited to 3 amps during turn on except for a maximum period of 2 microseconds during hot plugging where the current can exceed 3 amps but is less than 8 amps A DC DC converter output enable is provided on the interface connector This signal DC DC Enable is pulled up within the converter To enable the DC outputs this line must be at or above 2 4 volts To disable the DC outputs the signal must be at or below 1 4 volts The DC DC converter has over current over voltage and over temperature detection Any of these condi tions will latch off the converter The latch is reset by insuring that both input voltages fall below 5 volts for a period greater than or equal to 10 milliseconds Refer to 5 5 Option Pins and Indicators on page 66 for descriptions of the Early Power Off Warning and Loss of Redundancy fault signals associated with the 38 V supply inputs Source filename POWER IBM Corporation Page 33 of 87 USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH 2 2 5 Power Supply Ripple Externally
87. ute the sum of the 12 volt mean current s 1 sigma value assume all the distributions are normal Therefore the square root of the sum of the squares calculation applies Assume a case of 30 operations second sigma 112 VDC idle average 0 02 amps 12VDC seek average sqrt 30 0 0002 2 0 001 amps TOTAL sqrt 0 02 2 001 2 0 02 amps So the mean plus 3 sigma mean current is 0 50 3 0 02 0 56 amps Example 3 Power Calculation Nominal idle drive power 1 23 Amps 5 Volts 0 41 Amps 12 Volts 11 07 Watts Nominal R W drive power at 30 ops sec 1 25 Amps 5 Volts 0 50 Amps 12 Volts 12 25 Watts Mean plus 3 sigma drive power for 30 random R W operations second Assume that the 5 volt and 12 volt distributions are independent therefore the square root of the sum of the squares applies 5 VDC 1 sigma power 0 05 5 0 25 watts 12VDC 1 sigma power 0 02 12 0 24 watts Total 1 sigma power sqrt 0 25 2 0 24 2 0 35 watts Total power 10 84 3 0 35 11 9 watts Page 22 of 87 IBM Corporation Source filename POWER USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH Example 4 Calculate the 12 volt peak current To compute the sum of the 12 volt peak currents the following is done mean 12VDC idle avg 0 41 amps 12VDC seek peak 1 20 amps TOTAL 1 61 amps Example 5 Calculate the mean plus 3 sigm
88. y dhe Dah oe BN nG 64 5 32 SSA Tank Cables ix aoe A be ORO Ee eae Se Ba BR ie al Ae ho eee eS 66 5 4 SSA Link Electrical Characteristics 0 2 00 00 000 ee ee 66 5 5 Option Pins and Indicators 0 200000 0 a a a a a a a E a a a aa A GE ata a a 66 5 5 1 Manufacturing Test Mode Option Port Pin 1 aaa e 66 5 5 2 Auto Start Pin Option Port Pin 2 aa aaa 000000000004 66 553 Sync Pin Option Port PIMS Goats a a at woe KA a Go ee Wee 66 5 5 4 Write Protect Option Port Pin 4 aaaea aaa 2 0 002000 000000200004 67 5 5 5 Ground long Option Port Pin 5 ahaaa aaa 0000 000 eee 67 5 5 6 Device Activity Pin Indicator Option Port Pin 6 aaae 67 NI KIM AOPUONPOTEPIN 7 o AN o ARNAN haban MAL BA AA DAD DUN AGAM E 67 5 5 8 Device Fault Pin Indicator Option Port Pin8 aaa aaa 67 5 5 9 Programmable pin 1 Option Port Pin9 e 68 5 5 10 Programmable pin 2 Option Port Pin 10 0 e 68 5 5 11 Early Power Off Warning or Power Fail Power Port Pin 11 68 5 5 12 12V Charge and 5V Charge Power Port pin 1 and 2 o 68 9 6 Front Jumper Connector os siesd a ee KANG ak NG ae a te AG 68 5 7 Spindle Synchronization 2 2 i e e r e e a a a a E a S a an E E e a e ae aD a a a 69 5 7 1 Synchronization overview oaaae aa 69 5 1 2 Synchronization Mode rra 8 tioii eee DD AR BANA NAL KA e aa 69 3 379 y MCHTONIZACION TIME A NATA AA a AS a BB ted GANANG 69 5 7 4 S
89. ynchronization With Offset 20002 ee ee 69 3 7 3 Synchronization Route ne eek ee eee A eck NG 69 6 0 Reliability sei boo LG E AA A Le oe e Ao eas 73 6 1 Error Detecti n sak Lars alone Gb aR cela es Da Be Ge be Rhy Bleed ce dede 73 6 2 Data Reltability sce ccc de ee a he ee KG DARA REL ae NP Ge Bee PA 73 6 3 eek Error Rate ose ge ernie BN he Wi whee AK te a Pe ele te ck a A 73 6 4 Power On Hours Examples 0 000 000 2 ee 73 6 5 Power on off cycles ach lin LS A it ba LA Pee ED BP heb ba PES 74 6 62 UsSetul Lite or ars KM AMADA Dn ok Bar ances ca st Bina ee ote es BOK Bk gat oy Bi A ON ho 74 6 7 Mean Time Between Failure MTBF 00000000 000000000 75 6 7 1 Sample Failure Rate Projections 0 2 2 0002 ee 75 6 8 SPQL Shipped product quality level HA 75 6 9 Tnstall Defect Free 2065 ha ii e ss A A PEE Be we a BATS 75 6 10 Periodic Maintenance 2 2 aan a a a alg a a Ang a o ae e Sh a aA o a i a 76 6 11 VES D Protections iu ad e aa A a E aa Na 76 6 12 Connector Insertion Cycles 2 2 200 a a a e aoa T a a a D aa o e aE 76 7 0 Operating Limits s sray GN ER ee KAKA a o A bib Eh Cee 77 Page 6 of 87 IBM Corporation Source filename STSSHEXT USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP DFHC SSA MODELS 1 12 2 25 GB 1 0 HIGH Mid ENVIO Mental s a oe A A e ae Na NAG TB BA LA de 77 7 1 1 Temperature Measurement Points T
90. z 45 hz 48 hz 62 hz 65 hz 150 hz 200 hz 500 hz RMS V4 2 0E 5 1 1E 3 1 1E 3 8 0E 3 8 0E 3 1 0E 3 1 0E 3 8 0E 5 8 0E 5 0 56 V4S 2 0E 5 1 1E 3 1 1E 3 8 0E 3 8 0E 3 1 0E 3 1 0E 3 4 0E 5 4 0E 5 0 55 units glhz g Swept Sine Vibration The drive will operate without hard errors when subjected to the swept sine vibration of 1 0 G peak from 5 to 300 hz in the x and y direction For input in the z direction an input of 1 0 G peak amplitude can be applied from 5 hz to 250 hz the amplitude at 300 hz is 0 5 G peak Linear interpolation is used to deter mine the acceleration levels between 250 hz and 300 hz The test will consist of a sweep from 5 to 300 hz and back to 5 hz The sweep rate will be one hz per second Note 1 0 G acceleration at 5 hz requires 0 78 inch double amplitude displacement The connector on the right edge does not represent SSA connector Figure 24 Ultrastar XP SSA Drive Small Form Factor Assembly CxC Models 7 2 3 1 Nonoperating Vibration No damage will occur as long as vibration at the un packaged drive in all three directions defined above does not exceed the levels defined in the table below The test will consist of a sweep from 5 hz to 200 hz and back to 5 hz at a sweep rate of eight decades per hour Source filename OPLIMITS IBM Corporation Page 81 of 87 USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS OEM FUNCTIONAL SPECIFICATION ULTRA

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