Iomega StorCenter px12-350r / 24TB (12 x 2TB), Gigabit Ethernet
Contents
1. PROVISIONING AND RAID MIGRATION CONFIGURATION GUIDE 4 Each hard drive contains a small amount of on disk write cache Using the write cache can help improve write performance in some cases However data integrity may be at risk when the device loses power in the middle of I O yet cached data has not been committed to the drive Therefore the best practice is to enable write caching only when the lomega device is protected by UPS This is a global setting that applies to all drives 1 iomega a uro in CME rarya Home Dash board Us ETS Shared Storage Storage Pools The Storage Pools page There are Currently no Storage Pools defined Click here to adda new Storage Pool presents tasks and information tor provisioning storage in your omega Slorcenterixi2 The Storage Pools table includes the name RAID Drown tpe storage space capadt and tre amount of space allocated for folders Write caching improves Wwiite to cisk peformnance Because ofthe volatile nature of cache memor Writa Caching Enabled with UPS you Ap aya it om if OUr omega eare enter x12 is connected to an Enabled with UPS Uninterruptible power Abways enabled supply Helping you manage your digital life Figure 3 Configure write caching 5 If a drive slot has no drive inserted the slot is shown empty Figure 4 Drive slot without a drive iomega an EMC company White Paper IOMEGA STORAGE PROVISIONING AND RAID MIGRATION CONFIG2. StorCenter ix12 The Storage Pools table StorageGroup1 Party RAID 2778 gcar27To includes the name RAID prolecion type storage space capacity and the amount of space allocated for folders Because of the volatile you should enable it only if your lomega StorCenier ix42 is connected to an uninterruptible power supply Details wrte caring Enabled with UPS Helping you manage your digital life Figure 18 Storage pool reconstruction Storage pools with certain RAID types can also be migrated to certain other RAID types by adding additional drives while data is online After new drives are added and a RAID type is changed the Storage Pool will perform RAID reconstruction to change data protection mechanism and include the new drives in the protection During this process O performance may be degraded The supported RAID migration paths by changing RAID types include gt RAID1 2 drive RAID 10 only RAIDS by adding at least IHDD gt RAIDS RAID6 by adding at least HDD RAID 1 migration to RAID 5 1 Go to Settings gt Storage Pools and click 4 to modify a RAID10 Storage Pool that contains two drives only A RAID 10 Storage Pool containing more than two drives cannot be migrated 2 Add one or more disks to the pool by checking the desired disks iomega an EMC company White Paper IOMEGA STORAGE PROVISIONING AND RAID MIGRATION CONFIGURATION GUIDE 3 Change the data p
3. different RAID levels For more details refer to http en wikipedia org wiki RAID Striped set without parity or Striping Provides improved performance and additional storage but no redundancy or fault tolerance Because there is no redundancy this level is not actually a Redundant Array of Inexpensive Disks i e not true RAID However because of the similarities to RAID especially the need for a controller to distribute data across multiple disks simple stripe sets are normally referred to as RAID O Any disk failure destroys the array which has greater consequences with more disks in the array at a minimum catastrophic data loss is twice as severe compared to single drives without RAID A single disk failure destroys the entire array because when data is written to a RAID O drive the data is broken into fragments The number of fragments is dictated by the number of disks in the array The fragments are written to their respective disks simultaneously on the same sector This allows smaller sections of the entire chunk of data to be read off the drive in parallel increasing bandwidth RAID 0 does not implement error checking so any error is unrecoverable More disks in the array means higher bandwidth but greater risk of data loss DISK 0 DISK 1 RAID 1 2 L n 1 disks RAID 1 size of the smallest disk Mirrored set without parity or Mirroring Provides fault tolerance from disk errors
4. support print serving Rsync device to device replication and user replaceable hot swap fans power supplies and drives for business continuity and disaster recovery The easy to use interface Active Directory support and remote access provide no hassle management The StorCenter px12 350r supports PC Mac Linux and UNIX clients and is VMware certified for NFS and iSCSI and Microsoft Windows Server 2008 R2 Hyper V certified for iSCSI The lomega px12 350r allows flexible storage provisioning to offer users configuration options based on data protection storage utilization and performance considerations as well as application requirements Disks can be grouped into Storage Pools with or without a RAID protection level The supported RAID data protection types include 0 1 10 5 and 6 An existing Storage Pool with certain RAID protection types can be migrated by adding more disks while data is online Moreover a Storage Pool with certain RAID types can be migrated to some other RAID types while data is online During the migration the RAID group will be reconstructed but data will be continuously available although I O to the Storage Pool could be significantly slowed down during the reconstruction This document describes the supported RAID types and storage provisioning options available on an lomega px12 350r and the RAID migration paths that are permitted The paper includes detailed instructions to help users provision storage
5. te ter for Figure 12 Create a folder 3 By default the Enable security box is checked to allow you to specify access controls to the folder Security configuration is out of the scope of this white paper and is skipped 4 If the Media Server is enabled on the lomega px12 350r by default the Enable media sharing box is checked to allow the media server on the lomega px12 350r device to scan the folder for media files 5 After the folder is created it is listed in the Shared Storage table gt Space Available free space in the Storage Pool 1 iomega mame Depa bee Lire Figure 13 List folders iomega an EMC company White Paper IOMEGA STORAGE PROVISIONING AND RAID MIGRATION CONFIGURATION GUIDE Adding iSCSI drives The iSCSI service must be enabled before iSCSI drives can be created Refer to the Configuring iSCSI on the lomega StorCenter Pro ix4 200r NAS Sewer http download iomega com com nas pdfs iscsi_200r_wp_0909 pdf white paper about how to configure iSCSI This section assumes iSCSI configuration is already finished 1 Go to Shared Storage and click the Add button 2 Select iSCSI Drive as Shared Storage Type Enter a name for the drive and choose the Storage Pool where the drive is placed 3 Specify a size for the drive the drive size can be manually increased later 4 By default the Enable security box is checked to allow you assign access privileges for this iSCSI drive mam L
6. to certain other RAID types All these happen while data is online iomega an EMC company Copyright 2009 2010 EMC Corporation All rights reserved EMC believes the information in this publication is accurate as of its publication date The information is subject to change without notice THE INFORMATION IN THIS PUBLICATION IS PROVIDED AS IS EMC CORPORATION MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND WITH RESPECT TO THE INFORMATION IN THIS PUBLICATION AND SPECIFICALLY DISCLAIMS IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE Use copying and distribution of any EMC software described in this publication requires an applicable software license For the most up to date listing of EMC product names see EMC Corporation Trademarks on EMC com All other trademarks used herein are the property of their respective owners Part Number XXX XXX XXX
7. E Listing Storage Pools 1 To view Storage Pools go to Settings gt Storage Pools 2 The lomega px12 350r supports up to 12 SATA disks The drives and their layout inside the device enclosure are shown in a graphical representation Each drive is numbered 1 iomega a a2 Home PER E Users Shared Storage Settings Storage Pools The Storage Pools page There are currently no Storage Pools defined Click here to add a new Storage Pool presents tasks and iniormation for provisioning storage in your lomega StorCenter 12 The Storage Pools table includes the name RAID protection type storage space capacty and the amount of space allocated for folders Write caching improves write to disk performance Because ofthe volatile nature of cache memory Write Cachina Enabled wth UPS you should enable It only it your lomega StorCenter ix12 is connected to an uninterruptible power supply Helping you manage your digital life Figure 1 Storage Pools UI 3 Click Details to view drive information Drive information Drive 1 ST31000528AS Drive 2 ST31000528AS Drive 3 ST31000528AS Drive 4 ST31000528AS Drive 5 ST31000528AS Drive 6 ST31000528AS Drive 7 ST31000528AS Drive 8 ST31000528AS Drive 9 ST31000528AS Drive 10 ST31000528AS Drive 11 ST31000528AS Drive 12 ST31000528A8 Figure 2 Detailed drive information iomega an EMC company White Paper IOMEGA STORAGE
8. ND RAID MIGRATION CONFIGURATION GUIDE RAID migration by adding more drives The procedures for migrating RAID 5 and RAID 6 Storage Pools by adding new drives are the same In this paper RAID 5 migration procedure is described 1 Go to Settings gt Storage Pools and click 4 to migrate a RAID 5 Storage Pool Modify Storage Pool StorageGroupt Total Drive Size 4 TB Capacity 3 TB Name StorageGroup1 Protection Parity RAID 5 z MV Use as a default folder location M Enable periodic consistency check Comer S75 Figure 16 Migrate a RAID 5 Storage Pool 2 Add one or more disks to the pool by checking the desired disks Modify Storage Pool StorageGroupt a ere SS Total Drive Size 5 TB Capacity 5 TB Name StorageGroup1 Frotection Parity RAID 5 E M Use as a default folder location F Enable periodic consistency check Figure 17 Add more disks to the pool iomega an EMC company White Paper IOMEGA STORAGE PROVISIONING AND RAID MIGRATION CONFIGURATION GUIDE 3 Leave the protection type as Parity RAID 5 and click Apply The Storage Pool is shown as being reconstructed admin Log Out gt G 1 iomega Home Dashboard Users Shared Storage The Storage Pools page Action Name Protection Capacity _AlacatediFree ogame seme re ez m information for provisioning 2 i storageGroup2 None 330GE 087920686 A Dai BA storagecroun3 Mirror RAID 10 930 GB 3 GBro27 Ge
9. SK1 DISK2 DISK3 DISK4 Striped set with distributed parity or interleave parity Distributed parity requires all drives but one to be present to operate drive failure requires replacement but the array is not destroyed by a single drive failure Upon drive failure any subsequent reads can be calculated from the distributed parity such that the drive failure is masked from the end user The array will have data loss in the event of a second drive failure and is vulnerable until the data that was on the failed drive is rebuilt onto a replacement drive A single drive failure in the set will result in reduced performance of the entire set until the failed drive has been replaced and rebuilt RAID 5 Note Due to parity calculation write performance could be greatly impacted Therefore as a best practice it is recommended to create RAID 5 using at least 4 drives and RAID 6 using at least 6 drives Note Typically a RAID 10 group consists of an even number of drives On an lomega px12 350r RAID 10 can be created using an odd number of drives Each data block is repeated n times in a k way stripe The layout is equivalent to the standard RAID 10 layout but it does not require that n divides k For example an n2 layout on 2 3 4 drives would look like 2 Drives 3 Drives 4 Drives P po po iomega an EMC company White Paper IOMEGA STORAGE PROVISIONING AND RAID MIGRATION CONFIGURATION GUIDE 4 There could
10. URATION GUIDE Managing Storage Pools The StorCenter px12 350r is ordered and shipped with four drives By default one Storage Pool is created using all four drives in the RAID 5 protection mode as shown below Additional drives can be ordered in expansion packs but will not be constructed in any Storage Pool 2 1 iomega eg Ri Home Dashboard Users Shared Storage Settings Storage Pools The Storage Pools page j i i presents tasks and Action Name Protection Capacity AlocatedFree j presente tasks and 608 278 storage in your Iomega StorCenter ix12 The Storage Pools table includes the name RAID protection tpe storage space capacity and the amount of space allocated for folders Write caching improves write to dis lt performance Because ofthe volatile nature of ceche memory you should enable it only if your lomega StorCenter Details ix12 is connected to an uninterruptible power supply Write Caching Enabled with UPS W Cancel Helping you manage your digital life Figure 5 Array initial provisioning Characteristics of the Storage Pool and the drives in the enclosure are displayed in the table and the graphical representation of the enclosure Name the name of the Storage Pool by default it is called SP1 during initial provisioning A Storage Pool is assigned a letter starting from capital A The letter is associated with all the drives that belong to the pool Protecti
11. WHITE PAPER IOMEGA STORCENTER px12 350r STORAGE PROVISIONING AND RAID MIGRATION CONFIGURATION GUIDE This white paper describes the flexible and advanced INTRODUCTION 1 storage provisioning capabilities available on an lomega StorCenter px12 350r network storage array AUDIENCE l The paper includes detailed instructions to help users provision storage and plan for RAID migration TERMINOLOGY 1 STORAGE PROVISIONING 3 Listing Storage Pools 4 Managing Storage Pools 6 Adding Storage Pools 7 Adding folders 12 Adding iSCSI drives 14 RAID MIGRATION 15 RAID migration by adding more drives 16 RAID 1 migration to RAID 5 17 1 RAID 5 migration to RAID 6 18 iom ega CONCLUSION 19 an EMC company JUNE 2010 IOMEGA STORAGE PROVISIONING AND RAID MIGRATION CONFIGURATION GUIDE INTRODUCTION The lomega StorCenter px12 350r network storage array offers versatile storage provisioning advanced protocol capabilities expandability and affordability in an easy to use product ideal for small business workgroups and departments Based on enterprise class EMC storage technology the StorCenter px12 350r provides quad gigabit Ethernet connections direct or network attach easy file sharing iSCSI block access multiple RAID configurations for optimized data protection Storage Pools for application flexibility and expandability to match your budget Business users will appreciate the robust data protection features such as UPS
12. and failure of all but one of the drives Increased read performance occurs when using a multi threaded operating system that supports split seeks as well as a very small performance reduction when writing Array continues to operate so long as at least one drive is functioning Using RAID 1 with a separate controller for each disk is sometimes called duplexing DISK 0 DISK 1 RAID 10 Striped set of mirrors Provides both disk replication 4 n 2 n 2 disks RAID 10 and data sharing by combining the benefits of RAID 0 one from RAID 0 and RAID 1 each mirror RAID 1 RAID 1 set iomega an EMC company White Paper IOMEGA STORAGE PROVISIONING AND RAID MIGRATION CONFIGURATION GUIDE DISKO DISK1 DISK 2 DISK 3 RAID 6 Striped set with dual distributed parity Provides fault 4 n 2 dishes RAID 6 tolerance from two drive failures array continues to operate with up to two failed drives This makes larger RAID groups more practical especially for high availability systems This becomes increasingly important because large capacit drives lengthen the time needed to recover from the bic uw y a wes wes of a single drive Single parity RAID levels are vulnerable to data loss until the failed drive is rebuilt the larger the drive the longer the rebuild will take Dual parity gives time to rebuild the array without the data being at risk if a single additional drive fails before the rebuild is complete DISKO DI
13. and plan for RAID migration AUDIENCE Information contained in this white paper is intended for lomega customers partners and service personnel involved in provisioning storage on an lomega StorCenter px12 350r network storage array TERMINOLOGY RAID Redundant Array of Independent Disks RAID is a technology that allows high levels of storage reliability from low cost and less reliable disks via the technique of arranging the disks into arrays for redundancy JBOD Just a Bunch Of Disks In this mode all disks are addressed independently with no collective properties and the disks are concatenated to be presented as a single logical disk iomega an EMC company White Paper 1 IOMEGA STORAGE PROVISIONING AND RAID MIGRATION CONFIGURATION GUIDE RAID 0 this RAID level distributes data across multiple disks in a way that gives improved speed at any given instance If one disk fails however all the data on the array will be lost as there is neither parity nor mirroring RAID 0 is non redundant A RAID 0 array requires a minimum of two drives RAID 1 this RAID level mirrors the contents of the disks making a form of 1 1 ratio real time backup The contents of each disk in the array are identical to that of every other disk in the array A RAID 1 array requires a minimum of two drives RAID 5 this RAID level combines three or more disks in a way that protects data against loss of any one disk Fault tolerance is achieved by calcula
14. be three checkboxes associated with Storage Pool creation gt By default Create commonly used folders is checked to automatically create the Backups folder Pictures folder and Documents folder in the Storage Pool If the checkbox is unchecked no folder will be created However this checkbox is not presented if the folders had already been created in another Storage Pool gt By default Use as a default folder location is checked to assign this Storage Pool to be the default pool for folder and iSCSI LUN creation gt By default Enable periodic consistency check is checked to enable RAID consistency check monthly This checkbox is not presented if the protection type is either RAID 0 or None 5 Click Apply to complete the creation of the Storage Pool The newly created pool is displayed along with the RAID construction progress During RAID construction the Storage Pool cannot be modified but can be deleted The flashing EE icon indicates that RAID construction is in progress i omega Damian The Se ee en an pregete tasks are milcomrai an ra T i tl F J im ig piriiimari Emm aF a cria Figure 9 Finish Storage Pool creation iomega an EMC company White Paper IOMEGA STORAGE PROVISIONING AND RAID MIGRATION CONFIGURATION GUIDE 6 Repeat the steps to create more Storage Pools iomega apm non Linens Owshbnaercd Liars Shared Morse baai Pa Sga A ag EopiIT TE iran Libbs and niuin len wi p Se
15. city 2 TB Name StorageGroup1 sid Protection Double Parity RAID 6 ij M Create commonly used folders M Use as a default folder location M Enable periodic consistency check Figure 7 Select drives for the new Storage Pool iomega an EMC company White Paper 7 IOMEGA STORAGE PROVISIONING AND RAID MIGRATION CONFIGURATION GUIDE 3 Choose a RAID level for the Protection type On the lomega px12 350r the following data protection types are available in the Protection selection box Add Storage Poo Total Drive Size 4 TB Capacity 2 TB Name StorageGroup 1 Protection Double Parity RAID 6 pa qDouble Parity RAID 6 None RAID 0 None Figure 8 Choose data protection type gt Double Parity RAID 6 the pool must contain at least 4 drives gt Parity RAID 5 the pool must contain at least 3 drives gt Mirror RAID 10 the pool must contain at least 2 drives gt None RAID 0 the pool must contain at least 2 drives gt None the pool can contain one or more drives and the drives are in a JBOD mode without data protection Note the Protection dropdown box does not list RAID 1 explicitly However when only two drives are selected and the RAID 10 option is chosen the Storage Pool is effectively built into the RAID 1 mode iomega an EMC company White Paper 8 IOMEGA STORAGE PROVISIONING AND RAID MIGRATION CONFIGURATION GUIDE The following table compares the
16. n nodes on a network It also provides an authenticated inter process communication mechanism Most usage of CIFS involves computers running Microsoft Windows Network File System NFS A distributed file system providing transparent access to remote file systems NFS allows all network systems to share a single copy of a directory iSCSI Internet Small Computer System Interface This is a protocol for sending SCSI packets over a TCP IP network SCSI Small Computer System Interface Standard set of protocols for host computers communicating with attached peripherals iomega an EMC company White Paper y IOMEGA STORAGE PROVISIONING AND RAID MIGRATION CONFIGURATION GUIDE LUN Logical Unit Number Identifying number of a SCSI or iSCSI object that processes SCSI commands The LUN is the last part of the SCSI address for a SCSI object The LUN is an ID for the logical unit but the term is often used to refer to the logical unit itself Storage Pool a unit of provisioning A Storage Pool contains a set of disk drives using a common data protection type Folder on an lomega px12 350r a folder is a file system directory that can be accessed by hosts using file sharing protocols including NFS and CIFS A folder resides in a single Storage Pool iSCSI Drive on an lomega px12 350r an iSCSI drive is an iSCSI LUN that resides in a single Storage Pool SATA Serial Advanced Technology Attachment This is a storage interface for connec
17. ogowy t 1 iomega Hame Dashboard Users Shared Storage Add Shared Siorage Step 1 of 2 l Add an iSCSI drive by Shared Storage Type iscsi Drve B Drive entenng a walid name Check Enae security to configure access to this SCS dnwe this S251 Storage Pool StorageGroupd zl drive Ss lat unsecured ap anyone on ie network can Size Gay too raad or write files to it If security is enabled click Next ta set access privileges clhenise click Mog used Ths prive 27 TE Free Apply to add your iSCSI drive BCSI Drve Name rest UN ta E Enable security Helping you manage your digital lite Figure 14 Create an iSCSI drive iomega an EMC company White Paper IOMEGA STORAGE PROVISIONING AND RAID MIGRATION CONFIGURATION GUIDE 5 After the drive is created it is listed in the Shared Storage table without information about Used Available Figure 15 List iSCSI drives RAID MIGRATION Storage pools with certain RAID types can be migrated by adding additional drives while data is online After new drives are added the Storage Pool will perform RAID reconstruction to include the new drives in the RAID protection mechanism During this process I O performance may be degraded The supported RAID migration paths by adding more drives include gt RAID 5 4 RAID 5 by adding at least one HDD gt RAID 6 RAID 6 by adding at least one HDD iomega an EMC company White Paper IOMEGA STORAGE PROVISIONING A
18. on the RAID protection level of the Storage Pool Capacity total capacity of the Storage Pool it is the sum of allocated storage and free storage clicking the information icon will display information relevant to the pool space allocation and usage data protection name and a list of folders and iSCSI drives that are created in the pool PP clicking the edit icon will allow modification of the pool properties name data protection and RAID migration i clicking the garbage icon will remove the Storage Pool The drives are released and all data in the pool is deleted iomega an EMC company White Paper 6 IOMEGA STORAGE PROVISIONING AND RAID MIGRATION CONFIGURATION GUIDE Adding Storage Pools For illustration purpose the default initial Storage Pool is removed so that all twelve drives are available for Storage Pool creation to demonstrate the flexible provisioning options 1 Go to Settings gt Storage Pools and click the icon to create a new Storage Pool By default all drives that do not belong to any existing Storage Pool are checked for use Add Storage Pool Total Drive Size 10 92 TB Capacity 9 1 TB Name Protection Double Parity RAID 6 E M Create commonly used folders M Use as a default folder location IV Enable periodic consistency check Figure 6 Add a Storage Pool 2 Select drives to include in the new Storage Pool then name the pool Add Storage Pool Total Drive Size 4 TB Capa
19. rotection type from Mirror RAID 10 to Parity RAID 5 and click Apply The Storage Pool will be reconstructed into the new RAID type Modity Storage Pool StorageGroups Total Drive Size 3 TB Capacity 1 TB Name StorageGroup Figure 19 RAID 1 migration to RAID 5 RAID 5 migration to RAID 6 1 Go to Settings gt Storage Pools and click 4 to modify a RAID 5 Storage Pool 2 Add one or more disks to the pool by checking the desired disks 3 Change the data protection type from Parity RAID 5 to Double Parity RAID 6 and click Apply The Storage Pool will be reconstructed into the new RAID type Modify Storage Pool StorageGroups Total Drive Size 3 TB Capacity 1 TB Neme Storage croup 1 Figure 20 RAID 5 migration to RAID 6 iomega an EMC company White Paper IOMEGA STORAGE PROVISIONING AND RAID MIGRATION CONFIGURATION GUIDE CONCLUSION The lomega StorCenter px12 350r network storage array is a high performance easy to use and highly reliable storage device specifically designed to meet the storage challenges that small and medium sized businesses face daily The lomega px12 350r allows flexible storage provisioning by creating multiple Storage Pools that can be protected in a RAID The supported RAID types include RAID 0 RAID 1 RAID 10 RAID 5 and RAID 6 Disks in a Storage Pool can also be used as JBOD without data protection Storage pools with certain RAID types can also be migrated
20. ting host bus adapters to mass storage devices such as hard disk drives and optical drives STORAGE PROVISIONING An lomega px12 350r network storage array contains a maximum of twelve drives which can be grouped into one or more Storage Pools At least one Storage Pool must exist before any folders or iSCSI drives can be created A Storage Pool can be configured in the JBOD mode without any data protection or be configured in one of the supported RAID protection types The RAID types available on an lomega px12 350r are RAID 0 RAID 1 RAID 10 RAID 5 and RAID 6 The lomega px12 350r provides a graphical representation of the device enclosure the drives and their layout in the enclosure This graphical representation makes complex storage provisioning jobs much more intuitive and easier to understand When mousing over either a Storage Pool listed in the pool table or one of the drives belonging to a pool all drives in the same Storage Pool are highlighted in the graphical representation to clearly illustrate how the Storage Pool is constructed Faulted disks or Storage Pools are displayed with an alert icon or with an error icon When a Storage Pool is degraded or faulted the Storage Pool is grayed out to prevent modification In this white paper an lomega px12 350r device with twelve 1TB drives is used for illustration purpose iomega an EMC company White Paper 3 IOMEGA STORAGE PROVISIONING AND RAID MIGRATION CONFIGURATION GUID
21. ting parity and distributing parity to all disks Distributed parity requires all drives but one to be present to operate drive failure requires replacement but the array is not destroyed by a single drive failure Upon drive failure any subsequent reads can be calculated from the distributed parity such that the drive failure is masked from the end user The array will have data loss in the event of a second drive failure and is vulnerable until the data that was on the failed drive is rebuilt onto a replacement drive A single drive failure in the set will result in reduced performance of the entire set until the failed drive has been replaced and rebuilt RAID 6 this RAID level combines four or more disks in a way that protects data against loss of any two disks Fault tolerance is achieved by calculating dual parity and distributing them to all disks Distributed dual parity requires all drives but two to be present to operate RAID 10 or 1 0 this RAID type is a mirrored data set RAID 1 which is then striped RAID 0 hence the 10 name RAID 10 normally requires a minimum of four drives two mirrored drives to hold half of the striped data plus another two mirrored for the other half of the data CIFS Common Internet File System also known as Server Message Block SMB It operates as an application layer network protocol mainly used to provide shared access to files printers serial ports and miscellaneous communications betwee
22. v nL O68 930 ce gina ge im pour brags aS Slorlanies i17 The DBso ce Gloraage Frosin iniia ndudes fie name RAT imgecion hee tine Be CRIT marne ETU Of Bebe a rated aor tidia Pile cen crac Ardiek perhormenice fipcouses of he wulahle rhe ol cache meman jou shoud enable i only F fur bameg Hirani 2 is conned in an LUT rT Ere ke p Bee nd Figure 10 Create more Storage Pools Adding folders After the Storage Pools finish RAID construction you can add folders as shared storage for multiprotocol access Each folder is a directory in the file system that is built using the Storage Pool that the folder resides in 1 Go to Shared Storage and click the Add button i 1 Hmega hore Useldoem i Hitin Hei gi miira i l Ee ieia mi et Se ee Poti Cici a in pHi iar j a l a ACH drre 4 i hiii i fenira Tii z 1 1 l Cit H Wi khh EE a E bowen ie Ha EE i mmn Ciji fh ranig pooper Ciri on Fa i men is wah He epee gi ere LEi az fe irr Hiei Eurpgr Figure 11 Create Shared Storage iomega an EMC company White Paper IOMEGA STORAGE PROVISIONING AND RAID MIGRATION CONFIGURATION GUIDE 2 Select Folder as Shared Storage Type enter a name for the folder and select which Storage Pool to create the folder in et Utas Peter mera h Fa Pode a eT j ii A TES mar CIE E HTH lei Peek peru ify Lorde Boca 12 Pe fee mpri Ereba crac Aha E e ME BEME bo ger
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