Dell OpenManage Server Administrator Storage ... - Dell Support

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• Number of Physical Disks per Virtual Disk • Maximum Number of Virtual Disks per Controller RAID Level 50 (Striping over RAID 5 sets) RAID 50 is striping over more than one span of physical disks. For example, a RAID 5 disk group that is implemented with three physical disks and then continues on with a disk group of three more physical disks would be a RAID 50. It is possible to implement RAID 50 even when the hardware does not directly support it. In this case, you can implement more than one RAID 5 virtual disks and then convert the RAID 5 disks to dynamic disks. You can then create a dynamic volume that is spanned across all RAID 5 virtual disks. 46 Understanding RAID Concepts
Figure 3-6. RAID 50 RAID 50 Characteristics: • Groups n*s disks as one large virtual disk with a capacity of s*(n-1) disks, where s is the number of spans and n is the number of disks within each span. • Redundant information (parity) is alternately stored on all disks of each RAID 5 span. • Better read performance, but slower write performance. • Requires as much parity information as standard RAID 5. • Data is striped across all spans. RAID 50 is more expensive in terms of disk space. Understanding RAID Concepts 47
Page 1 and 2: Dell OpenManage Server Administrato
Page 3 and 4: Contents 1 Overview . . . . . . . .
Page 5 and 6: 4 Quick Access to Storage Status an
Page 7 and 8: RAID Controller Read, Write, Cache,
Page 9 and 10: Resizing the CacheCade . . . . . .
Page 11 and 12: Connector Properties and Tasks . .
Page 13 and 14: Number of Physical Disks per Virtua
Page 15 and 16: 14 Protecting Your Virtual Disk wit
Page 17 and 18: A Disk on a PERC 4/Di Controller Do
Page 19 and 20: Supported Features on the PERC 5/ P
Page 21 and 22: Health Status Rollup: Physical Disk
Page 23 and 24: Overview 1 Dell OpenManage Server A
Page 25 and 26: Version Requirements for Controller
Page 27 and 28: • PowerVault MD1000 and MD1120 st
Page 29 and 30: Getting Started 2 Dell OpenManage S
Page 31 and 32: Administrator privileges are requir
Page 33 and 34: Common Storage Tasks This section p
Page 35 and 36: Understanding RAID Concepts 3 Stora
Page 37 and 38: • Stripe element size—The amoun
Page 39 and 40: • RAID Level 5 (Striping with dis
Page 41 and 42: Figure 3-2. Striping Disks RAID 0 C
Page 43 and 44: Related Information: • Organizing
Page 45: Figure 3-5. RAID 6 RAID 6 Character
Page 49 and 50: Figure 3-7. RAID 60 RAID 60 Charact
Page 51 and 52: Figure 3-8. Striping Over Mirrored
Page 53 and 54: • Controller-supported RAID Level
Page 55 and 56: Table 3-1. RAID Level and Concatena
Page 57 and 58: 4 Quick Access to Storage Status an
Page 59 and 60: Table 4-1. Component Severity Sever
Page 61 and 62: Using Enclosure Temperature Probes
Page 63 and 64: healthy. Once the communication pat
Page 65 and 66: PCI Express Solid-State Device Supp
Page 67 and 68: Table 5-1. PCIe Sub System Properti
Page 69 and 70: Table 5-3. Physical Device Properti
Page 71 and 72: Table 5-3. Physical Device Properti
Page 73 and 74: Backplanes PCIe SSDs are attached t
Page 75 and 76: Storage Information and Global Task
Page 77 and 78: If the enclosure has virtual disks
Page 79 and 80: Property Definition Minimum Require
Page 81 and 82: Controllers 7 This section describe
Page 83 and 84: • PERC H200, H700, and H800 contr
Page 85 and 86: RAID Controller Read, Write, Cache,
Page 87 and 88: • Write-Through—When using writ
Page 89 and 90: NOTE: Storage Management does not c
Page 91 and 92: NOTE: On replacing a SMART error dr
Page 93 and 94: Table 7-1. Firmware and Driver Prop
Page 95 and 96: Controller Components For informati
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Property Definition Firmware Versio
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Property Definition Auto replace me
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Property Definition Persistent Hot
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Available Reports • Patrol Read R
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Controller Components For informati
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Reset Configuration Does my control
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5 Click Execute. You can also locat
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Property Definition State This prop
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Importing Foreign Configurations So
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Clear Foreign Configuration Does my
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The following table describes prope
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Property Definition Bus Protocol Th
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Property Definition Encrypted This
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4 Select Set Check Consistency Rate
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Figure 7-1. Daisy Chain Configurati
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Clearing the Redundant Path View Co
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To locate this task in Storage Mana
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2 Select a controller object. 3 Sel
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Table 7-8. Manage Physical Disk Pow
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Data in the cache may also be lost
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If you are using Local Key Manageme
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Encryption Key credentials for a co
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To unblink the physical disk in the
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Convert to RAID Capable Disks On De
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Enclosures and Backplanes 8 Physica
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The Failure threshold has a default
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Changing the Mode on PowerVault 220
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Table 8-1. Component Severity Sever
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Property Definition Configuration T
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Drop-down Menu Enclosure Tasks: •
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View Slot Occupancy Report Does my
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Set Asset Data Does my enclosure su
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View Slot Occupancy Report Does my
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Property Definition Type This prope
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Power Supply Properties Use this wi
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Temperature Probe Properties and Ta
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Set Temperature Probe Properties an
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Connectors 9 A controller contains
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Recommended RAID Levels: - PERC 4/D
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Table 9-1. Component Severity Sever
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Connector Tasks: Rescan Connector D
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Selecting this option clears the re
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RAID Controller Batteries 10 Some R
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Table 10-1. Battery Properties Prop
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Property Definition Maximum Learn D
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The battery learn cycle discharges
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11 Physical Disks or Physical Devic
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• If you want to include the new
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Physical Disk or Physical Device Pr
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Property Definition Rebuilding—Da
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Property Definition Failure Predict
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Property Definition Serial No. This
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into a server or an enclosure. If t
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Rebuilding a disk may take several
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Use the Offline task to deactivate
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If Revertible Hot Spare is enabled
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Convert to RAID Capable Disk This t
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Virtual Disks 12 In order to implem
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virtual disks can result in pockets
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For related information, see Consid
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Calculation for Maximum Virtual Dis
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To reconfigure a virtual disk: 1 Re
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Table 12-1. Virtual Disk Reconfigur
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Table 12-1. Virtual Disk Reconfigur
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The following table describes some
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Virtual Disk Properties and Tasks U
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Property Definition Background Init
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1 Expand the Storage tree object to
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however, cancel the background init
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in Resynching state causes the virt
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• have Self Encryption Drives (SE
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NOTE: The CERC SATA1.5/2s controlle
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Create Virtual Disk Advanced Wizard
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The algorithm determines the candid
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Connector 0 The Connector section o
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the controller. In most cases, the
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This option is available only if th
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Monolithic, PERC H800, and PERC H81
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NOTE: The PERC 4/SC, 4/DC, 4e/DC, 4
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Considerations for Initialize The i
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- Slow Initialize - Fast Initialize
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3 Select the Virtual Disks object.
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Unmirror Does my controller support
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To locate this task in Storage Mana
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13 Moving Physical and Virtual Disk
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• Saving the New Controller Confi
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14 Protecting Your Virtual Disk wit
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Global Hot Spare Protection Policy
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A dedicated hot spare can only be a
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NOTE: When using the BIOS on a CERC
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15 CacheCade Using Solid State Driv
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BIOS Terminology 16 The terminology
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Troubleshooting 17 This section con
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Replacing a Failed Disk You may nee
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After retrieving any viable data fr
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• The virtual disk is non-redunda
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3 Restore the virtual disk from the
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Resolution: Perform a Rescan Contro
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Receive a “Bad Block” Alert wit
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A Corrupt Disk or Drive Message Sug
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PCIe SSD Troubleshooting Peripheral
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Frequently Asked Questions 18 This
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3 To display more information about
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Supported Features A Different cont
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Table A-1. Controller Tasks Support
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Virtual Disk Tasks Table A-5. Virtu
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Virtual Disk Specifications Table A
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Table A-6. Virtual Disk Specificati
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Read, Write, and Disk Cache Policy
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Controller Tasks Table A-10. Contro
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Table A-13. Physical Disk Tasks Sup
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Table A-15. Virtual Disk Specificat
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Read, Write, and Disk Cache Policy
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Table A-19. Controller Tasks Suppor
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Battery Tasks Table A-20. Battery T
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Table A-23. Virtual Disk Tasks Supp
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Table A-26. Read, Write, and Cache
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Controller Tasks Table A-28. Contro
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Table A-28. Controller Tasks Suppor
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Connector Tasks Table A-30. Control
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Virtual Disk Tasks Table A-32. Virt
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Supported Features on the PERC S100
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Table A-60. Backplane Tasks for SCS
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B Determining the Health Status for
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Table B-3. Health Status Rollup: Ph
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Table B-6. Health Status Rollup: Vi
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Health Status Rollup: One Enclosure
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Table B-13. Health Status Rollup: L
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