pcore
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Migrate RAID-0 to RAID-1 - how?

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Hi,
I have a number of R730xd servers with PERC H730 RAID controllers.
I have configured the drives as JBOD by creating a virtual drive for each in RAID 0. So each physical drive has its own virtual RAID-0 drive.
Can I migrate one of them to RAID 1 without losing data? I can delete one of the virtual drives on the same controller so there is a spare drive available.
I found some references to RAID level migration, but no information on how to actually do it.
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Moderator
Moderator

RE: Migrate RAID-0 to RAID-1 - how?

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With another HDD installed, when you go to Reconfigure Virtual Disks, you won't be finding a place to manually change it to a Raid 1. The reconfigure tells it to reconfigure the array with the new drive. Making it a mirror (Raid 1) It then will rebuild the new drive with the first drives data.

Chris Hawk

Dell | Social Outreach Services - Enterprise
Get Support on Twitter @DellCaresPro 
Download the Dell Quick Resource Locator app today to access PowerEdge support content on your mobile device! (iOS, Android, Windows)

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theflash1932
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RE: Migrate RAID-0 to RAID-1 - how?

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You must choose reconfigure on the disk you plan to preserve - the VD that contains the data you want to convert to a RAID 1. You must delete the unused disk first - you will NOT be able to select it if it is configured in a VD.

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theflash1932
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RE: Migrate RAID-0 to RAID-1 - how?

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Yes, you can do this 1) in the RAID controller's BIOS configuration utility, 2) from OMSA in the OS, or 3) from a OMSA "live" CD. In OMSA it is called "reconfigure" for the virtual disk.

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Moderator
Moderator

RE: Migrate RAID-0 to RAID-1 - how?

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Pcore,

In order to run the Raid Level Migration, yuo would need to access the controller BIOS. Under the Virtual Disk Management page you will find RECONFIGURE VIRTUAL DISKS, select that and it will perform the Raid Level Migration for you.

Let me know if this helps.

Chris Hawk

Dell | Social Outreach Services - Enterprise
Get Support on Twitter @DellCaresPro 
Download the Dell Quick Resource Locator app today to access PowerEdge support content on your mobile device! (iOS, Android, Windows)

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pcore
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RE: Migrate RAID-0 to RAID-1 - how?

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Hi Chris,


I simply cannot find the option to do migration. I tried booted into both PERC BIOS Configuration and Lifecycle Manager. I can see the virtual disks fine in both interfaces, but I cannot find where to migrate from RAID-0 to RAID-1.

For example, in Lifecycle Controller -> System Setup -> Advanced Hardware Configuration -> Device Settings -> RAID Controller -> Virtual Disk Management -> (Virtual disk name) -> Operation -> Reconfigure Virtual Disks -> I cannot change RAID level there.

For example, in Lifecycle Controller -> Hardware Configuration -> Configuration Wizards -> RAID Configuration -> RAID Controller -> Select RAID Level -> Select Physical Disks -> Virtual Disk Attribtues etc. it will let me select physical disks for virtual disk creation. It looks like this will create a new virtual disk, not migrate an existing one.

In PERC, I don't see any migration options when I click F2 Operations on a disk group or virtual disk. VD properties only lets me change read policy etc.

Am I missing the obvious somewhere?

Best regards,

Brian

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Moderator
Moderator

RE: Migrate RAID-0 to RAID-1 - how?

Jump to solution

With another HDD installed, when you go to Reconfigure Virtual Disks, you won't be finding a place to manually change it to a Raid 1. The reconfigure tells it to reconfigure the array with the new drive. Making it a mirror (Raid 1) It then will rebuild the new drive with the first drives data.

Chris Hawk

Dell | Social Outreach Services - Enterprise
Get Support on Twitter @DellCaresPro 
Download the Dell Quick Resource Locator app today to access PowerEdge support content on your mobile device! (iOS, Android, Windows)

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pcore
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RE: Migrate RAID-0 to RAID-1 - how?

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Thanks Chris, worked perfectly.


Brian

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fisherZ
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RE: Migrate RAID-0 to RAID-1 - how?

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Sorry to chime in, but I wish to do this as well and could use some additional details using OMSA

8.1.

I select "reconfigure" from "available tasks" on the disk with the data I want to preserve?  Or

do I do that on one of the other, unused RAID-0 disks?

Cheers.

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theflash1932
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RE: Migrate RAID-0 to RAID-1 - how?

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You must choose reconfigure on the disk you plan to preserve - the VD that contains the data you want to convert to a RAID 1. You must delete the unused disk first - you will NOT be able to select it if it is configured in a VD.

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fisherZ
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RE: Migrate RAID-0 to RAID-1 - how?

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Took me a while, but finally got to this.  Thanks very much for taking the time to answer.

Deleted the unused (but previously configured disk), chose the disk I wanted to reconfigure

from RAID-0 to RAID-1, chose RAID-1 on the next screen (the default was for two disk RAID-0),

the only disk offered was the only free disk, the one I had just deleted.  Followed my nose and

waited a few hours.  All seems to be well.

Thanks again.

FZ

chuck.balogh
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RE: Migrate RAID-0 to RAID-1 - how?

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I have a 3 disc RAID0 that I want to convert to a RAID1 (2 disc obviously).  If I understand the above discussion, I can do this but I'm not sure of the details.  I have 1  open slot for a HDD.  Do I  add a new  disc in that  slot? 

Is the disc I am selecting the Virtual Disc (VD)?  In FZ's notes, he deleted the  Unused (but previously configured)  disc.  I don't have  "one of  those".  The only VD I have  is the  one  with the  data on it  as a RAID0.  I can't delete it, can I?

Any help would be very much appreciated.  I have Open Manage v8.5.  I have a Dell T310 server with Windows Server 2008 r2.  I  have 4 HDD  slots, 3 are  filled with 500G disc's.  

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