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Recovering a lost NORAID Logical Drive

Created: 03 May 2013 • Updated: 06 May 2013 | 2 comments
This issue has been solved. See solution.

Hello Everybody

I have a Veritas Cluster environment with two Nodes that can access two SUN Storedges 3320.

It was create 2 logical drives at the both Storedges, with NORAID.

One of this Logical Drives lost a drive and because the NORAID option the data was lost at all.

Because we have the Veritas Volume Manager e Veritas Clustes, the DG´s were detach and attach to the other Storedge.

A new disk was add in the bad Logical Drive and the Luns were recreated.

Now I have to recreate the disks in the Veritas Volume Manager. Can anyone help me?

Take a look at this commands:

root@svmmprod1 # vxdisk list
DEVICE       TYPE            DISK         GROUP        STATUS
c0t0d0s2     auto:cdsdisk    -            -            online
c0t0d1s2     auto:cdsdisk    bgw1dgc0t0d1  bgw1dg       online
c0t0d2s2     auto:cdsdisk    -            -            online
c0t0d3s2     auto:cdsdisk    -            -            online
c0t0d4s2     auto:cdsdisk    -            -            online
c2t0d0s2     auto:sliced     rootdisk     rootdg       online
c2t1d0s2     auto:sliced     rootmirror   rootdg       online
c2t2d0s2     auto:cdsdisk    -            -            online
c2t3d0s2     auto:cdsdisk    -            -            online
c5t2d0s2     auto            -            -            error
c5t2d1s2     auto            -            -            error
c5t2d2s2     auto            -            -            error
c5t2d3s2     auto:cdsdisk    -            -            online
c5t2d4s2     auto:cdsdisk    -            -            online
-            -         bgw1dgc5t2d1 bgw1dg       failed was:c5t2d1s2

##############################################################################

root@svmmprod2 # vxdisk list
DEVICE       TYPE            DISK         GROUP        STATUS
c0t2d0s2     auto:cdsdisk    ora1dgc0t0d0  ora1dg       online
c0t2d1s2     auto:cdsdisk    -            -            online
c0t2d2s2     auto:cdsdisk    bgw2dgc0t2d2  bgw2dg       online
c0t2d3s2     auto:cdsdisk    -            -            online
c0t2d4s2     auto:cdsdisk    -            -            online
c2t0d0s2     auto:sliced     rootdisk     rootdg       online
c2t1d0s2     auto:sliced     rootmirror   rootdg       online
c2t2d0s2     auto:cdsdisk    oraarch1dg02  oraarch1dg   online
c2t3d0s2     auto:cdsdisk    oradata1dg02  oradata1dg   online
c4t0d0s2     auto            -            -            error
c4t0d1s2     auto            -            -            error
c4t0d2s2     auto            -            -            error
c4t0d3s2     auto:cdsdisk    oradata1dg01  oradata1dg   online
c4t0d4s2     auto:cdsdisk    oraarch1dg01  oraarch1dg   online
-            -         ora1dg01     ora1dg       failed was:c4t0d0s2
-            -         bgw2dgc4t0d2 bgw2dg       failed was:c4t0d2s2
 

Thanks for now

Alexandre Andrich

Operating Systems:

Comments 2 CommentsJump to latest comment

rsharma1's picture

Hi Andrich,

                    Did you run a vxdisk scandisks after re-provisioning the luns at the array level?

Make sure the newly re-provisioned luns are available at the OS level (prtvtoc); Scan the luns for VxVM using vxdisk scandisks;  Use vxreattach -c <disk_medianame>  on each node to determine if each of the failed disks can be reattached to the disk groups: ora1dg, bgw1dg  bgw2dg. If there are no errors with vxreattch -c, then go ahead to reattach the disks using  vxreattach -br <disk_medianame>.

The following technote should provide more help: http://www.symantec.com/business/support/index?pag...

SOLUTION
andrich's picture

Hello rsharma1

It seems to work fine...

Take a look.

root@svmmprod1 # vxdisk list
DEVICE       TYPE            DISK         GROUP        STATUS
c0t0d0s2     auto:cdsdisk    -            -            online
c0t0d1s2     auto:cdsdisk    bgw1dgc0t0d1  bgw1dg       online
c0t0d2s2     auto:cdsdisk    -            -            online
c0t0d3s2     auto:cdsdisk    -            -            online
c0t0d4s2     auto:cdsdisk    -            -            online
c2t0d0s2     auto:sliced     rootdisk     rootdg       online
c2t1d0s2     auto:sliced     rootmirror   rootdg       online
c2t2d0s2     auto:cdsdisk    -            -            online
c2t3d0s2     auto:cdsdisk    -            -            online
c5t2d0s2     auto:cdsdisk    -            -            online
c5t2d1s2     auto:cdsdisk    bgw1dgc5t2d1  bgw1dg       online
c5t2d2s2     auto:sliced     -            -            online
c5t2d3s2     auto:cdsdisk    -            -            online
c5t2d4s2     auto:cdsdisk    -            -            online

root@svmmprod2 # vxdisk list
DEVICE       TYPE            DISK         GROUP        STATUS
c0t2d0s2     auto:cdsdisk    ora1dgc0t0d0  ora1dg       online
c0t2d1s2     auto:cdsdisk    -            -            online
c0t2d2s2     auto:cdsdisk    bgw2dgc0t2d2  bgw2dg       online
c0t2d3s2     auto:cdsdisk    -            -            online
c0t2d4s2     auto:cdsdisk    -            -            online
c2t0d0s2     auto:sliced     rootdisk     rootdg       online
c2t1d0s2     auto:sliced     rootmirror   rootdg       online
c2t2d0s2     auto:cdsdisk    oraarch1dg02  oraarch1dg   online
c2t3d0s2     auto:cdsdisk    oradata1dg02  oradata1dg   online
c4t0d0s2     auto:cdsdisk    ora1dg01     ora1dg       online
c4t0d1s2     auto:cdsdisk    -            -            online
c4t0d2s2     auto:sliced     bgw2dgc4t0d2  bgw2dg       online
c4t0d3s2     auto:cdsdisk    oradata1dg01  oradata1dg   online
c4t0d4s2     auto:cdsdisk    oraarch1dg01  oraarch1dg   online
 

Thanks a lot.

Alexandre Andrich