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metadetach error on /var filesystem

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Operating Systems Solaris metadetach error on /var filesystem
# 1  
Old 12-12-2011
metadetach error on /var filesystem
Hi Everyone

I am trying to detach sub mirror for /var/ filesystem not sure how to detach this sub mirror. someone please guide, I am removing all devices from using SVM.

Code:
metastat -p
bash-3.00#metastat -p
d3 -m d13 1
d13 3 1 c1t2d0s3 \
         1 c1t2d0s5 \
         1 c1t3d0s3
bash-3.00# 
bash-3.00# metadetach d3 d13
metadetach: sunfiretop: d3: attempt to detach last running submirror

bash-3.00#
bash-3.00# metastat
d3: Mirror
    Submirror 0: d13
      State: Okay
    Pass: 1
    Read option: roundrobin (default)
    Write option: parallel (default)
    Size: 44066295 blocks (21 GB)

d13: Submirror of d3
    State: Okay
    Size: 44066295 blocks (21 GB)
    Stripe 0:
        Device     Start Block  Dbase        State Reloc Hot Spare
        c1t2d0s3          0     No            Okay   Yes
    Stripe 1:
        Device     Start Block  Dbase        State Reloc Hot Spare
        c1t2d0s5          0     No            Okay   Yes
    Stripe 2:
        Device     Start Block  Dbase        State Reloc Hot Spare
        c1t3d0s3          0     No            Okay   Yes


Device Relocation Information:
Device   Reloc  Device ID
c1t2d0   Yes    id1,sd@n500000e0130083e0
c1t3d0   Yes    id1,sd@SSEAGATE_ST973401LSUN72G_3811010F____________3LB1010F
bash-3.00#

Thanks
# 2  
Old 12-12-2011
Try

Code:
metaclear d3

This User Gave Thanks to dude2cool For This Post:
bobby320
# 3  
Old 12-12-2011
I am getting this error message, says metadevice is open
Code:
bash-3.00# metastat -p
d3 -m d13 1
d13 3 1 c1t2d0s3 \
         1 c1t2d0s5 \
         1 c1t3d0s3
bash-3.00# metaclear d3
metaclear: sunfiretop: d3: metadevice is open

bash-3.00#

# 4  
Old 12-13-2011
you can not detach the only submirror from a mirror! what is the goal of your action?
# 5  
Old 12-13-2011
@bobby320, maybe this will help:

Removing Disk from SVM
# 6  
Old 12-13-2011
My goal is to remove all disks from SVM.
# 7  
Old 12-13-2011
you have to edit the /etc/vfstab to use the physical devices instead of the metadevices... after rebooting the machine you can clear the metadevices.

BUT BEWARE!!!
your /var directory is on a stripeset. you have to copy/dump the content to another directory BEFORE deleting the metadevices and editing the vfstab!
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