Intel srcsas144e User's Manual
Contents
1. sequential reads 3 Intel RAID Controller SRCSAS144E Hardware Guide 1 0 setting Determines whether to read write from cache to improve performance Cache I O Writes to the cache and next read checks the cache first Direct I O Never uses cache all data goes from host to disk to host Redundancy through Configuration stored in nonvolatile RAM and on the drives COD Hot swap support Optional battery backup for cache memory Controller provides fast or trickle charges SAS and SATA Features Provides eight independent phys each supporting 3 0 Gbps and 1 5 Gbps SAS and SATA data transfers Scalable interface that supports up to 15 SATA devices 40 logical devices or 32 SAS devices via expanders Transfers data using SCSI information units Supports SSP to enable communication with other SAS devices Supports SMP to communicate topology management information Supports single PHY or wide ports consisting of 2 3 or 4 PHY within a single quad port Allows addressing of multiple SATA targets through an expander if using SATA 2 0 compliant hard disk drives Allows multiple initiators to address a single target in a fail over configuration through an expander Online Capacity Expansion and RAID Level Migration Rules Intel RAID Controller SRCSAS144E Hardware Guide Migration must occur to the same or larger capacity configuration Migration cannot occur if there is more than one virtual disk in2. RAID Controller SRCSAS144E 32 Kb NVRAM and config on disk COD store RAID configuration Redundant Configuration Enclosure Management I2C out of band SES2 in band SAF TE LEDs Array Performance Features Table 3 shows the RAID Controller SRCSAS144E array performance features Table 3 Array Performance Features Specification Intel RAID Controller SRCSAS144E PCI Express Host Data Transfer Rate 2 5 Gigabit s per lane Drive Data Transfer Rate 3 Gigabit s per lane Maximum Scatter Gathers 26 elements Maximum Size of I O Requests 6 4 Mbytes in 64 Kbyte stripes Maximum Queue Tags per Drive As many as the drive can accept Stripe Sizes 8 16 32 64 or 128 Kbyte Maximum Number of Concurrent Commands 255 Support for Multiple Initiators Yes Flexibility Drive migration RAID level migration drive roaming online capacity expansion without reboot Background Services Rebuild consistency check initialization migration OCE and patrol read Cache Options Write back or write through read ahead adaptive read ahead non read ahead cache I O or direct I O Intel RAID Controller SRCSAS144E Hardware Guide Fault Tolerance Table 4 shows the RAID Controller SRCSAS144E fault tolerance features Table 4 Fault Tolerance Features Specification Intel RAID Controller SRCSAS144E Self Monitoring Analysis and Reporting Technol
3. SAS including SATA controller 128 MB RAM Eight independent ports Four internal ports provided via the SFF8087 connector Four external ports provided via the SFF8470 connector Support for both enterprise class SAS devices and desktop class SATA drives 1 Intel RAID Controller SRCSAS144E Hardware Guide e Support for up to 32 SAS or SATA drives and 40 logical drives PCI Express connector that fits into a x8 PCI Express slot capable of 2 5 Gbps per lane over PCI Express x1 or x4 3 0 Gbps point to point transfer rate Both a standard and a low profile bracket The SAS controller supports the ANSI Serial Attached SCSI SAS standard version 1 0 In addition the controller supports the Serial ATA SATA protocol defined by the Serial ATA specification version 1 0a T he SAS controller is a versatile controller that supporting both the SAS and SATA interfaces and provides the backbone of both server and high end workstation environments Protocols supported include Usability Intel RAID Controller SRCSAS144E Hardware Guide Serial SCSI Protocol SSP Communication with other SAS devices SATA II Protocol Communication with other SATA II devices Serial Management Protocol SMP Topology management information sharing with expanders Serial Tunneling Protocol STP support for SATA II through expander interfaces Smaller thinner cabling with serial point to point 3 0 Gbps data transfer rates All
4. condensing e Maximum dew point temperature 32 C Airflow must be at least 300 linear feet per minute SFPM to avoid operating the 80333 processor above the maximum ambient temperature The storage and transit environment conditions are Temperature range from 30 C to 80 C dry bulb without battery 0 C to 45 C dry bulb with battery Relative humidity range 5 to 90 non condensing Safety Characteristics The RAID Controller SRCSAS144E meets or exceeds the requirements of UL flammability rating 94 VO Each bare board is also marked with the supplier name or trademark type and UL flammability rating For the boards installed in a PCI Express bus slot all voltages are lower than the SELV 42 4 V limit The design and implementation minimizes electromagnetic emissions susceptibility to radio frequency energy and the effects of electrostatic discharge The adapter carries the CE mark C tick mark FCC self certification logo Canadian compliance statement Korean MIC Taiwan BSMI and Japan VCCI The adapter meets the requirements of CISPR Class B Both the adapter and battery are CCSA C22 2 No 60950 1 UL60950 1 First Edition listed accessory UL filenumber E257743 17 Intel RAID Controller SRCSAS144E Hardware Guide A Glossary of Terms and Abbreviations BIOS Configuration Device Driver Domain Validation EEPROM External SAS Device Host Host Adapter Board HAB Internal SAS Device Ma
5. E with internal and external connectors Requirements The following items are required to install a RAID Controller SRCSAS144E An Intel RAID Controller SRCSAS144E A host system with an available x4 or x8 bi directional PCI Express slot The Resource CD which contains drivers and documentation The cables provided with the RAID controller SAS or SATA hard disk drives Intel Corporation strongly recommends using an uninterruptible power supply UPS Intel RAID Controller SRCSAS144E Hardware Guide Installation 1 Power off the computer and all drives enclosures and system components Remove the power cord from the computer 2 Remove the chassis cover and access the PCI Express add in card slots See your server chassis documentation for instructions 3 Align the controller s connector with a x4 or x8 PCI Express slot on the server board 4 Press down gently but firmly to ensure that the card is properly seated in the slot as shown in Figure 1 Secure the bracket to the computer chassis AF000645 Figure 1 Inserting the Intel RAID Controller SRCSAS144E into a PCI Express Slot 5 Connect the provided internal and or external cables into the adapter using the 4 port combined end Make sure the controller and cables are properly attached If using an external cable plug the cable into the connector in the end bracket If using an internal cable plug the cable into connector at th
6. Intel RAID Controller SRCSAS144E Hardware Guide Intel Order Number D39308 003 INFORMATION IN THIS DOCUMENT IS PROVIDED IN CONNECTION WITH INTEL R PROD UCTS NO LICENSE EXPRESS OR IMPLIED BY ESTOPPEL OR OTHERWISE TO ANY INTELLECTUAL PROPERTY RIGHTS IS GRANTED BY THIS DOCUMENT EXCEPT AS PRO VIDED IN INTEL S TERMS AND CONDITIONS OF SALE FOR SUCH PRODUCTS INTEL ASSUMES NO LIABILITY WHATSOEVER AND INTEL DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY RELATING TO SALE AND OR USE OF INTEL PRODUCTS INCLUDING LIABILITY OR WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE MERCHANTABIL ITY OR INFRINGEMENT OF ANY PATENT COPYRIGHT OR OTHER INTELLECTUAL PROP ERTY RIGHT Intel products are not intended for use in medical life saving life sustaining applications Intel may make changes to specifications and product descriptions at any time without notice Intel is a trademark or registered trademark of Intel Corporation or its subsidiaries in the United States and other countries Other names and brands may be claimed as the property of others Copyright 2006 2007 by Intel Corporation Portions Copyright 2005 2007 by LSI Logic Corporation All rights reserved Intel RAID Controller SRCSAS144E Hardware Guide Preface This is the primary reference and user s guide for the Intel RAID Controller SRCSAS144E which can be used for SAS and SATA disk drives It contains installation instructions and specifications For details
7. SATA SAS Primary SATA Physical Link Physical Link Note SA TA backplane connectors will NOT accept SAS drives Figure 3 SAS and SATA Plugs and SAS Backplane Connector Intel RAID Controller SRCSAS144E Hardware Guide 10 Perform the following steps to connect a RAID Controller SRCSAS144E directly to a SAS backplane or to SATA hard drives When cabling directly to hard drives or to backplanes that do not include expander support use one cable per drive When cabling to backplanes that include expander support use one or two cables per backplane 1 Connect the 4 port connector on the internal cable into the connector on the RAID Controller SRCSAS144E 2 Connect between one and four of the connectors on the other end of the cable into the connector on a SAS backplane or SATA hard drive or into a backplane that has expander support Intel product codes AXX6DRV3GEXP or AXX4DRV3GEXP R54 to HOO Breakout Cable Figure 4 Intel RAID Controller SRCSAS144E to a SATA Hard Drive Configuring the Storage Adapter After performing the Intel RAID Controller SRCSAS144E installation you must configure the storage adapter and install the operating system driver The Software User 5 Guide instructs you on the configuration options and how to set them on your RAID Controller SRCSAS144E and provides detailed installation instructions for operating system drivers Intel RAID Controller SRCSAS144E Hardware Guide Replacing a Controlle
8. a ana a 17 A Glossary of Terms and Abbreviations svvvrnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnennnnnnnnnnen 18 Intel RAID Controller SRCSAS144E Hardware Guide V vi Intel RAID Controller SRCSAS144E Hardware Guide Figures Figure 1 Inserting the Intel RAID Controller SRCSAS144E into a PCI Express Slot 7 Figure 2 Internal SAS Cable for Connection to SAS Backplane or SATA Hard Drives 9 Figure 3 SAS and SATA Plugs and SAS Backplane Connector nenea 10 Figure 4 Intel RAID Controller SRCSAS144E to a SATA Hard Drive 11 Figure SC aed Ay GIS ceia ao a ne ne a ae bt alde 13 Intel RAID Controller SRCSAS144E Hardware Guide vii viii Intel RAID Controller SRCSAS144E Hardware Guide Tables Table 1 Jumper Descriptions Tabl 2 SDecifllCalloTIS ries 35 Sonet da aia aa ti sd ad ali at 14 Table 3 Array Performance Features NN 15 Table 4 Fault Tolerance Features cc eee KK eee aaa nana KK A KK kK 16 Table 5 Electrical Characteristics mmm eee eee eee ea eee eee eee aa aaa ee KK eee 16 Intel RAID Controller SRCSAS144E Hardware Guide 1 Overview This chapter provides a general overview of the Intel RAID Controller SRCSAS144E It consists of the following sections Summary of SAS RAID Controller Features Benefits of Serial Attached SCSI SAS The Intel RAID Controller SRCSAS144E Storage Adapter is a high performance intell
9. a logical array Migration and OCE cannot be done on Spanned Arrays RAID 10 50 Migrations supported are RAID 1 to RAID 0 RAID 5 to RAID 0 With OCE migrations supported are RAID 0 to RAID 1 RAID 0 to RAID 5 RAID 1 to RAID 5 Operating System Support The RAID Controller SRCSAS144E supports major operating systems including Windows 2000 Windows Server 2003 and Windows XP Red Hat Enterprise Linux 3 0 and 4 0 e SuSe Linux Enterprise Server 9 and 9 SP1 Note The operating systems supported by this controller may not be supported by your server board See the tested operating system list for your server board at http support intel com support motherboards server See also the tested hardware and operating system list for the RAID Controller SRCSAS144E to make sure the RAID card supports your operating system Beep Codes Short beep 1 second on 1 second off The array is degraded but no data is lost Long beep 3 seconds on 1 second off The array has failed and data has been lost Short beep 1 second on 3 seconds off Using hot spare in rebuild The alarm will continue during the rebuild with a different sound at completion To disable the alarm choose Disable Alarm To disable the alarm only until the next event or until the next power cycle choose Silence Alarm To enable the alarm choose Enable Alarm Benefits of Serial Attached SCSI SAS SAS is a serial point to point enterprise level device
10. al seconds and pass the option to get into the BIOS Console The firmware takes several seconds to initialize and will then display the RAID Controller SRCSAS144E number and firmware version The numbering of the controllers follows the PCI slot scanning order used by the server board Intel RAID Controller SRCSAS144E Hardware Guide 8 Connecting the Cables This section describes the cables used on the SAS controller and provides instructions for connecting SAS and SATA hard disk drives to the SAS RAID controller Note Use only straight SAS cables not cross over SAS cables Figure 2 shows the cable used to connect the internal connectors on a SAS RAID controller to SATA drives The cable supplied with the Intel RAID Controller SRCSAS144E is for SATA drives or a SAS backplane connection Serial Signal Cables Figure 2 Internal SAS Cable for Connection to SAS Backplane or SATA Hard Drives 9 Intel RAID Controller SRCSAS144E Hardware Guide A SATA connector consists of a signal connector and a power connector The SAS connector adds a bridge primary physical link between the signal connector and the power connector This means SAS backplane connectors can accept either drive type but SATA backplane connectors can ONLY accept SATA drives Figure 3 shows these connectors Serial Att ached SCSI e f p Recept acle Connector SAS Backplane Power DQ Serial A TA SAS Secondary i Physical Link
11. bes the characteristics of the Intel RAID Controller SRCSAS144E Figure 5 displays the connectors and headers on the controller and Table 1 describes them Smart Battery nk Activity C ctor J11 pe LED headet SEED o ports u TT J7SES2 Enc Mgmt E 4 7 B Eu 4 Flash FW El SAF TE Enc Mgmt Ports Cache 0 3 48 LED din ram LED header T lt 3 Header DD man Van Figure 5 Card Layout Table 1 Jumper Descriptions Jumper Description Type Comments J4 Flash Recovery 2 pin If a normal firmware update fails place a jumper jumper across the J4 pins and reflash The card will not function as a controller until the jumper is removed J5 Port activity LED 8x2 LED signal for activity per port for eight ports header J6 SAF TE I C header 3 pin SAF TE Enclosure management support Warning Do not connect to a non expander SAS backplane or data loss may occur J7 SES C header SES2 Enclosure management support J8 Cache write 2 pin Provides a signal indicating the cache has data to pending LED write Intel RAID Controller SRCSAS144E Hardware Guide Table 1 Jumper Descriptions Jumper Description Type Comments J9 Drive fault LEDs 8x2 LED signal on drive fault per port for eight ports Reader Warning May not display correctly if only internal ports are used J11 Intel RAID Smart 20 pin Cable connector for the battery pack This is Battery conne
12. ctor located on the back non connector side of the board Technical Specifications The design and implementation of the Intel RAID Controller SRCSAS144E minimizes electromagnetic emissions susceptibility to radio frequency energy and the effects of electrostatic discharge See the appendices for regulatory marks and certifications Table 2 lists the specifications for the Intel RAID Controller SRCSAS144E Table 2 Specifications Specification Intel RAID Controller SRCSAS144E Intel 80333 I O processor at 500 MHz Processor PCI Controller Operating Voltage 3 3 V 12 V Card Size Low profile PCI Express adapter card size 7 71 inches by 2 535 inches Array Interface to Host PCI Express Rev 1 0A x4 lane width 2 5 Gbps SAS Bus Speed 3 GBps per port point to point SAS Controller One LSI SAS 1068 controller SAS SATA Ports 1x4 internal ports 1x4 external ports Supports 32 SAS SATA devices using expanders 40 virtual disks Cache Integrated 128 MB RAM optional battery backup Firmware 4 MB in reflashable flash ROM Compatible Devices Mixed capacity mixed SATA and SAS in different enclosures non disk devices including expanders Cabling Small thin cables do not restrict airflow shared connectors for multiple drive types Intel RAID Controller SRCSAS144E Hardware Guide 14 Table 2 Specifications Specification Intel
13. e connected together using an unshielded ribbon cable The part of a computer s memory which is directly accessible by the CPU usually synonymous with RAM Non volatile Random Access Memory An EEPROM Electronically Erasable Read Only Memory chip used to store configuration information See EEPROM A piece of hardware such as a video monitor disk drive printer or CD ROM used with a computer and under the computer s control SCSI peripherals are controlled through a SAS Intel RAID Controller SRCSAS144E Intel RAID Controller SRCSAS144E Hardware Guide 18 SAS SAS Device Serial Attached SCSI A serial point to point enterprise level device interface that leverages the proven SCSI protocol set The SAS interface provides improved performance simplified cabling smaller connections lower pin count and lower power requirements when compared to parallel SCSI SAS controllers leverage a common electrical and physical connection interface that is compatible with Serial ATA The SAS controllers support the ANSI Serial Attached SCSI standard version 1 0 In addition the controller supports the Serial ATA SATA protocol defined by the Serial ATA specification version 1 0a Each port on the SAS RAID controller supports SAS and SATA devices Any device that conforms to the SAS standard and is attached to the SAS bus by a SAS cable This includes SAS storage adapters host adapters and SAS peripherals Intel RAID Controlle
14. e inside edge of the adapter 7 Intel RAID Controller SRCSAS144E Hardware Guide Note System throughput problems can occur if using SAS cables that do not come with the RAID controller and that are not the correct type To minimize the potential for problems Use cables no longer than ten meters for SAS and one meter for SATA It is better to use the shortest possible cables The cable length should be reduced by about one foot 33 meters if using a backplane You may connect one device per SATA SAS cable either as a device or as an expander Route SAS cables carefully Use only straight SAS cables not cross over SAS cables 6 Replace components you needed to remove to access the PCI Express add in card slot See your server chassis documentation for instructions 7 Reinstall the chassis cover and reconnect the power cord s See your server chassis documentation for instructions 8 Reconnect any peripheral items you needed to disconnect 9 Turn the power on to the server and hard drives As the server powers up listen to be sure that the SAS and SATA devices are powered up before or at the same time as the computer boots 10 Watch the boot process until you see a BIOS message to inform you of the key combination to press to enter the RAID BIOS Console It will look similar to the following message Press lt CTRL gt lt G gt to run BIOS Console 2 This message will time out after sever
15. igent PCI Express SAS RAID controller It provides reliability high performance and fault tolerant disk subsystem management This is an ideal RAID solution for the internal storage needs of workgroup departmental and enterprise systems The RAID Controller SRCSAS144E offers a cost effective way to implement RAID in a server for internal and external storage The SAS controller allows you to use SATA and SAS hard disk drives in the same system so you can take advantage of the benefits of each type of drive The controller can connect up to eight drives directly and use expanders to connect to additional drives See the ANSI SAS standard version 1 0 specification for more information about the use of expanders As the second generation PCI Express storage adapter the RAID Controller SRCSAS144E addresses the growing demand for increased data throughput and scalability requirements across midrange and enterprise class server platforms Simplified cabling between drives is an additional benefit The optional Intel RAID Smart Battery for cached data protection allows system builders to protect cached data during catastrophic system failures Summary of SAS RAID Controller Features Note In this document the term low profile refers to the height not the length of a PCI add in card The Intel RAID Controller SRCSAS144E is an intelligent low profile RAID adapter with An Intel IOP333 I O processor running at 500 MHz e An LSI 1068
16. in Memory NVRAM Peripheral Devices Basic Input Output System Software that provides basic read write capability Usually kept as firmware ROM based The system BIOS on a server board is used to boot and control the system The BIOS on your host adapter acts as an extension of the system BIOS The way a computer is setup the combined hardware components computer monitor keyboard and peripheral devices that make up a computer system and the software settings that allow the hardware components to communicate with each other A program that allows a microprocessor through the operating system to direct the operation of a peripheral device A software procedure in which a host queries a device to determine its ability to communicate at the negotiated data rate Electronically Erasable Programmable Read Only Memory A memory chip typically used to store configuration information It provides stable storage for long periods without electricity and can be reprogrammed See NVRAM A SAS device installed outside the computer cabinet These devices are connected together using specific types of shielded cables The computer system in which a storage adapter is installed It uses the storage adapter to transfer information to and from devices attached to the SCSI bus A circuit board or integrated circuit that provides a device connection to the computer system A SAS device installed inside the computer cabinet These devices ar
17. interface that leverages the proven SCSI protocol set SAS is a convergence of the advantages of SATA SCSI and FC and is the future mainstay of the enterprise and high end workstation storage markets SAS offers a higher bandwidth per pin than parallel SCSI and improves signal and data integrity The SAS interface uses the proven SCSI command set to ensure reliable data transfers while providing the connectivity and flexibility of point to point serial data transfers The serial transmission of SCSI commands eliminates clock skew challenges The SAS interface provides improved performance simplified cabling smaller connectors lower pin count and lower power requirements when compared to parallel SCSI SAS controllers leverage a common electrical and physical connection interface that is compatible with Serial ATA technology The SAS and SATA protocols use a thin 7 wire connector instead of the 68 wire SCSI cable or 40 wire ATA cable The SAS SATA connector and cable are easier to manipulate allow connections to smaller devices and do not inhibit airflow The point to point SATA architecture eliminates inherent difficulties created by the legacy ATA master slave architecture while maintaining compatibility with existing ATA firmware 5 Intel RAID Controller SRCSAS144E Hardware Guide 2 Intel RAID Controller SRCSAS144E Hardware Installation This chapter describes the procedures used to install the Intel RAID Controller SRCSAS144
18. o ta o e i EET iii Chapter 1 Overview scindat cc a i oi i ic aa 1 Summary of SAS RAID Controller Features mmm nenea nea k kk KK kk 1 aa eee elan rene ren ei noa da ia la Sate a na alai o 2 Redundancy and Error Handling ea ne dea al i d ie ab 3 SAS and SATA FT NN 4 Online Capacity Expansion and RAID Level Migration Rules 4 Beep eee 5 Benefits of Serial Attached SCSI SAS JK K lK jKXhlllE kk kk kk kk ek kk KK k kk KK 5 Chapter 2 Intel RAID Controller SRCSAS144E Hardware Installation 6 ESEN ENI Si ic ie pene eee a ee ee ee ee eee 6 BUDS CANN GNA ses acido mc ie se aa aed i ie aa nl EE 7 Connecting the Cables ss s ax usiclasixns eo da ed te ME an s ALA k ke RA MR u KRE n Rake k n k an Re itdte 9 Configuring the Storage Adapter mmm nene nene nenea ana k KA KK KHK KA KRA 11 Repiacing Controller i i 4 xa e a mk xwi Siwara yaka da s ka da e nini n h r iei ea 12 Resolving Configuration Mismatch LL a a o i pt kk kek kk kk Kek kk KA 12 Chapter 3 Intel RAID Controller SRCSAS144E Characteristics 13 Technical Specifications cscs ca aia ai a ta cocina ta a n til Danae a ba Sf e aa ala 14 Array Performance Features scena aie a ai iai De ag da d a a Da 15 Fault TESE ww www Ypmmmmmmmw 16 Electrical Characteristics Lee 16 Safety Characteristics n scoasa nada aie ti e a ao ea au be
19. ogy SMART support Detects up to 70 of all predictable disk drive failures and monitors the internal performance of all motors heads and drive electronics Optional Battery Backup Intel RAID Smart Battery cache backup Up to 64 hours of data retention Trickle fast charging Charge indicator Drive Replacement Auto detection of hard drive failure hot plug hot swap User set rebuild rate Drive Rebuild Using Hot Spares Automatic at drive failure dedicated per array global per array auto resume of initialization or rebuild on reboot Error Checking and Indication Parity generation and checking automatic consistency checking patrol reads activity and fault LEDs Power Conservation Staggered spin up lower power requirements Electrical Characteristics This section provides the power requirements for the RAID Controller SRCSAS144Es Table 5 lists the maximum power requirements Table 5 Electrical Characteristics PCI PCI Express Express 12 V 115 mA used only if battery is present PCI 5 0 V 1 5A PCI only PCI PCI Express Express 3 3 V Operating Range Temperature PCI PRSNT1 2 Power 15 6 W 18 3 W with battery charging 0 C to 45 C Intel RAID Controller SRCSAS144E Hardware Guide 16 Thermal and Atmospheric Characteristics The thermal and atmospheric characteristics are Relative humidity range 5 to 90 non
20. on how to configure the storage adapters and for an overview of the software drivers see the Software User s Guide on the Resource CD Audience This document assumes that you have some familiarity with RAID controllers and related support devices The people who benefit from this book are Engineers who are designing a RAID Controller SRCSAS144E storage adapter into a system Anyone installing a RAID Controller SRCSAS144E storage adapter in a RAID system Organization This document includes the following chapters and appendixes Chapter 1 provides a general overview of the Intel RAID Controller SRCSAS144E Chapter 2 describes the procedures for installing the RAID Controller SRCSAS144E storage adapter Chapter 3 provides the characteristics and technical specifications for the RAID Controller SRCSAS144E storage adapter Appendix A lists and explains the terms and abbreviations used in this manual Related Publication The Software User 5 Guide on the Resource CD that is included with the RAID controller Intel RAID Controller SRCSAS144E Hardware Guide iii Intel RAID Controller SRCSAS144E Hardware Guide Contents PISTAG casti ceai e kake k neke deke A aa al A ke x kk HE He H a dr ke ku de ku K kir as dekr K e ku ki ia an du K k iii PAU LS 219 9 NE re meee VE EEE e e ia Sa atu ase aaa a iii Organiza iei isp aaa ea ia ed pa ele le e ta beta pr a R N ii Related Publication e ceace r
21. ot of initialization or rebuild must be enabled before virtual disk creation Smart initialization automatically checks consistency of virtual disks if there are five or more disks in a RAID 5 array which optimizes performance by enabling read modify write mode RAID 5 arrays of only three or overdrives use peer read mode Dirty cache LED plus cache write to disk error reporting Smart Technology predicts failures of drives and electronic components e Patrol Read checks drives and maps bad sectors e Commands are retried at least four times Firmware provides best effort to recognize an error and recover from it if possible e Failures are logged from controller and drive firmware SMART monitor SAF TE controller e Failures are logged in NVRAM viewable from OS Event Log Intel RAID Web Console 2 CIM LEDs and via alarm e Multiple cache options provide choice of speed redundancy Write The data written done signal is returned when data is written to drive or only to cache Write back default Faster because it since doesn t wait for the disk but data will be lost if power is lost Write through Slower but ensures data is on the disk Read Ahead Predicts the next read will be sequential and buffers this data into the cache NonRead Ahead Always reads from the drive after determining the exact location of each read Adaptive Read Ahead Will read ahead and cache data only if doing
22. ows mixed connections to SAS or SATA targets Support for non disk devices and mixed capacity drives Support for intelligent XOR RAID levels 0 1 5 10 and 50 Dedicated or global hot spare with auto rebuild if an array drive fails User defined stripe size per drive 8 16 32 64 def or 128 KB Advanced array configuration and management utilities that provide Online Capacity Expansion OCE adds space to existing drive or new drive Online RAID level migration upgrade of RAID mode may require OCE Drive migration Drive roaming No reboot necessary after expansion An upgradeable Flash ROM interface Allows for staggered spin up hot plug lower power consumption User specified rebuild rate of system resources to use from 0 100 Warning Exceeding 50 rate may cause operating system errors caused by waiting for controller access Background operating mode can be set for rebuilds consistency checks initialization auto restarting consistency check on redundant volumes migration OCE and patrol read Redundancy and Error Handling Enclosure management support including LEDs Activity and fault indicators per drive port selector dual port drives Drive coercion auto resizing to match existing disks Auto detection of failed drives with transparent rebuild Disk activity I O to the drive must be present for a missing drive to be marked as failed e Auto resume on rebo
23. r Perform the following steps to replace a failed controller 1 Power off the computer and all drives enclosures and system components Remove the power cord 2 Remove the chassis cover and access the PCI Express add in card slots See your server documentation for instructions 3 Disconnect the cable s from the RAID controller 4 Remove the failed controller from the system 5 Insert the replacement controller into the system Follow the instructions under Installation Resolving a Configuration Mismatch If a replacement RAID Controller SRCSAS144E has a previous configuration a message displays during POST stating that there is a configuration mismatch A configuration mismatch occurs when the configuration data in the NVRAM and the hard disk drives are different You need to update the configuration data in the NVRAM with the data from the hard disk drive Perform the following steps to resolve the mismatch 1 Press lt Ctrl gt lt G gt when prompted during the boot process to access the BIOS Configuration Utility 2 Select Configure gt View Add Configuration This allows viewing of the NVRAM and drive configurations 3 Select the configuration on disk because the drives contain the correct configuration 4 Press lt Esc gt and select YES to update the NVRAM 5 Exit and reboot Intel RAID Controller SRCSAS144E Hardware Guide 12 Intel RAID Controller SRCSAS144E Characteristics This chapter descri
24. r SRCSAS144E Hardware Guide
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