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PowerEdge: How to Reconfigure a Virtual Disk or Add More Hard Drives.

Resumen: This article shows how to add additional disks to a virtual disk or reconfigure a virtual disk.

Este artículo se aplica a Este artículo no se aplica a Este artículo no está vinculado a ningún producto específico. No se identifican todas las versiones del producto en este artículo.
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Instrucciones

Note: If you have multiple Virtual Disks (VD) created on the same set of disks or you have a RAID 50 or RAID 60, the operation to reconfigure fails. Please note further that reconfiguration and capacity expansion is non-data destructive as an operation. If there are underlying issues with the RAID array, data can be lost, so please ensure a tested backup is available before starting any operation.

 

Caution: Reconfiguring Virtual Disks typically impacts disk performance until the reconfiguration operation is complete. It is highly recommended that the procedure is done during a maintenance window.

What is Online Capacity Expansion (OCE)?

Online Capacity Expansion is a process that allows a virtual disk's capacity to be expanded to existing free space on the disk group or the hard drives it contains. It also allows for new hard drives to be added to a disk group to expand the capacity of the virtual disk. The process allows for expansion without the requirement of re-creating the virtual disk. 

What is RAID Level Migration (RLM)?

RAID Level Migration is the process of changing a virtual disk's RAID level while not requiring the virtual disk to be re-created. Physical disks can and sometimes must be added to fulfill the requirements of the new RAID level.
You can find a table of RAID level migration options in the Additional Information part of this article.

Steps:

  1. Access the BIOS by F2 > Device Settings

    expand virtual disk1
    Figure 1: Expand Virtual Disk Step 1

 

  • Select RAID Controller
    Expand Virtual Disk2
    Figure 2: Expand Virtual Disk Step 2

 

  • In the Dashboard view, select Main Menu
    Expand Virtual Disk 3
    Figure 3: Expand Virtual Disk Step 3

 

  • Select Virtual Disk Management
    Expand Virtual Disk 4
    Figure 4: Expand Virtual Disk Step 4

 

  • Select the virtual disk to be changed
    Expand Virtual Disk 5
    Figure 5: Expand Virtual Disk Step 5

 

  • In the drop-down, select Reconfigure Virtual Disks and press GO button
    Expand Virtual Disk 6
    Figure 6: Expand Virtual Disk Step 6

 

  • Select the RAID Level and level and press button Choose the Operation
    Expand Virtual Disk 7
    Figure 7: Expand Virtual Disk Step 7

 

  • Select the disks to be added at VD and press button Apply Changes.
    Expand Virtual Disk 8
    Figure 8: Expand Virtual Disk Step 8

 

  • Confirm the operation and click in YES.
    Expand Virtual Disk 9
    Figure 9: Expand Virtual Disk Step 9

 

  • Press the button Start Operation
    Expand Virtual Disk 10
    Figure 10: Expand Virtual Disk Step 10

 

  • Press button OK to complete the operation.
    Expand Virtual Disk 11
    Figure 11: Expand Virtual Disk Step 11

 

  • To view, see the status of the virtual disk 
    Expand Virtual Disk 12
    Figure 12: Expand Virtual Disk Step 12



After the reconstruction starts, the system can be left in the RAID BIOS until complete, or the system can be rebooted into the operating system.
 

Note: If the system is rebooted into the operating system, the system performance is impacted until the rebuild has been completed.

Información adicional

Related articles and videos:

How to change the RAID Level or Size of a configured Virtual Disk.

Duration: 00:01:22 (hh:mm:ss)
When available, closed caption (subtitles) language settings can be chosen using the settings or CC icon on this video player.

 

Possible RAID Level Migrations:

Note:
  • The controller changes the write-cache policy of all virtual disks undergoing an RLM/OCE to Write-Through until the RLM/OCE is complete.
  • Spanned virtual disks such as RAID 50 and 60 cannot be reconfigured.
 Source RAID  Target RAID Required Number of Physical Disks (Beginning) Number of Physical Disks (End)     Capacity Expansion Possible    Description    
RAID 0 RAID 0 1 2 or more Yes  Increases capacity
RAID 0 RAID 1 1 2 No  Converts nonredundant virtual disk into a mirrored virtual disk by adding one disk.
RAID 0 RAID 5 1 or more 3 or more Yes  At least one drive must be added for distributed parity data.
RAID 0 RAID 6 1 or more 4 or more Yes  At least two drives must be added for dual distributed parity data.
RAID 1 RAID 0 2 2 or more Yes  Removes redundancy while increasing capacity.
RAID 1 RAID 5 2 3 or more Yes  Maintains redundancy while doubling capacity.
RAID 1 RAID 6 2 4 or more Yes  Two drives must be added for distributed parity data.
RAID 5 RAID 0 3 or more 3 or more Yes  Converts to a nonredundant virtual disk and reclaims disk space that is used for distributed parity data.
RAID 5 RAID 5 3 4 or more Yes  It increases capacity by adding disks.
RAID 5 RAID 6 3 or more 4 or more Yes  At least one drive must be added for dual distributed parity data.
RAID 6 RAID 0 4 or more 4 or more Yes  Converts to a nonredundant virtual disk and reclaims disk space that is used for distributed parity data.
RAID 6 RAID 5 4 or more 4 or more Yes  Removes one set of parity data and reclaims the disk space that is used for it.
RAID 6 RAID 6 4 5 or more Yes It increases capacity by adding disks.
RAID 10 RAID 10 Less than 32 32 Yes It increases capacity by adding disks.
Note: If the controller already contains the maximum number of virtual disks, you cannot perform a RAID level migration or capacity expansion on any virtual disk.
 

Productos afectados

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Propiedades del artículo
Número del artículo: 000116592
Tipo de artículo: How To
Última modificación: 28 oct 2024
Versión:  16
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