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sKiBa 08-09-2006 11:55 AM
Removing an SVM mirror
 
Hi guys,

I havea box that is configured with 2 disks in Raid 1 using SVM. I am running out of space and want to break the mirror (just my test box) but am new to SVM. Can someone point me in the right direction. Do I need to use metaoffline? How do I then go about expanding the root filesystem with the created space on the second disk? Any help much appreciated.

The 1.1GB is unassigned, 538mb is swap and the 6GB is / Would also like to incorporate the spare 1gb too.


Code:
d5: Mirror
    Submirror 0: d15
      State: Okay       
    Submirror 1: d25
      State: Okay       
    Pass: 1
    Read option: roundrobin (default)
    Write option: parallel (default)
    Size: 2215647 blocks (1.1 GB)

d15: Submirror of d5
    State: Okay       
    Size: 2215647 blocks (1.1 GB)
    Stripe 0:
        Device    Start Block  Dbase        State Reloc Hot Spare
        c0t0d0s5          0    No            Okay  Yes


d25: Submirror of d5
    State: Okay       
    Size: 2215647 blocks (1.1 GB)
    Stripe 0:
        Device    Start Block  Dbase        State Reloc Hot Spare
        c0t1d0s5          0    No            Okay  Yes


d1: Mirror
    Submirror 0: d11
      State: Okay       
    Submirror 1: d21
      State: Okay       
    Pass: 1
    Read option: roundrobin (default)
    Write option: parallel (default)
    Size: 1102437 blocks (538 MB)

d11: Submirror of d1
    State: Okay       
    Size: 1102437 blocks (538 MB)
    Stripe 0:
        Device    Start Block  Dbase        State Reloc Hot Spare
        c0t0d0s1          0    No            Okay  Yes


d21: Submirror of d1
    State: Okay       
    Size: 1102437 blocks (538 MB)
    Stripe 0:
        Device    Start Block  Dbase        State Reloc Hot Spare
        c0t1d0s1          0    No            Okay  Yes


d0: Mirror
    Submirror 0: d10
      State: Okay       
    Submirror 1: d20
      State: Okay       
    Pass: 1
    Read option: roundrobin (default)
    Write option: parallel (default)
    Size: 14338863 blocks (6.8 GB)

d10: Submirror of d0
    State: Okay       
    Size: 14338863 blocks (6.8 GB)
    Stripe 0:
        Device    Start Block  Dbase        State Reloc Hot Spare
        c0t0d0s0          0    No            Okay  Yes


d20: Submirror of d0
    State: Okay       
    Size: 14338863 blocks (6.8 GB)
    Stripe 0:
        Device    Start Block  Dbase        State Reloc Hot Spare
        c0t1d0s0          0    No            Okay  Yes

shizzy-t 08-11-2006 12:45 PM
Use the metadetach command.

For the root slice you'd want to do a
metaclear d0 d20

Then change the root device back to user the orginal no-mirrored slice
metaroot /dev/dsk/c0t0d0s0

Reboot

Then use metaclear to remove the rest of the mirror

metaclear -r d0 (this will remove d0 and unattach d10)

As to growing the / file system over the unassigned area of the secondary disk...i think you'd have to backup everything then distroy the partitions make root bigger then recreate the raid 1.


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