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How to change Disk Failed in Solaris Volume Manager

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1.-How to check the HW and Transport Errors

root@ # iostat -en
  ---- errors ---
  s/w h/w trn tot device
    0   0   0   0 md/d20
    0   0   0   0 md/d21
    0   0   0   0 md/d25
    0   0   0   0 md/d26
    0   0   0   0 md/d60
    0   0   0   0 md/d61
    0   0   0   0 md/d65
    0   0   0   0 md/d66
    0   0   0   0 md/d80
    0   0   0   0 md/d81
    0   0   0   0 md/d85
    0   0   0   0 md/d86
    0   6   6   12 c0t1d0
    0   0   0   0 c0t0d0
    0   0   0   0 c0t3d0
    0   0   0   0 c5t0d0
    0   0   0   0 c5t1d0

3.-Verify the metadevices in maintenance

#metastat

d20: Mirror
    Submirror 0: d60
      State: Okay
    Submirror 1: d80
      State: Okay
    Pass: 1
    Read option: roundrobin (default)
    Write option: parallel (default)
    Size: 104862500 blocks (50 GB)d1: Submirror of d0
    State: Needs maintenance
    Invoke: metareplace d20 c1t0d0s0 <new device>
    Size: 16780224 blocks (8.0 GB)
    Stripe 0:
        Device     Start Block  Dbase        State Reloc Hot Spare
        c1t0d0s0          0     No     Maintenance   Yes

4.-You will need detach the metadevices in maintenance


root@ # metastat -c
d26              m  512MB d66 d86
    d66          s  512MB c0t0d0s6
    d86          s  512MB c0t1d0s6 (maint)
d25              m  164GB d65 d85
    d65          s  164GB c0t0d0s5
    d85          s  164GB c0t1d0s5 (maint)
d21              m   64GB d61 d81
    d61          s   64GB c0t0d0s1
    d81          s   64GB c0t1d0s1 (maint)
d20              m   50GB d60 d80
    d60          s   50GB c0t0d0s0
    d80          s   50GB c0t1d0s0 (maint)

#metadetach -f d20 d80
#metadetach -f d21 d81
#metadetach -f d25 d85
#metadetach -f d26 d86

5.-Clear or Delete las replicas detached

#metaclear d80
#metaclear d81
#metaclear d85
#metaclear d86

6.-Delete metadb


#metadb -d /dev/rdsk/c0t1d0s7


6.-Unconfigure el disco del sistema operativo


root@# cfgadm -c unconfigure c0::dsk/c0t1d0

 

7.-Replace the disk broken


     c0t1d0

8.-Execute devfsadm in order to discover the disk changed and cfgadm to see the disk discovered

----------------------------------------------
#devfsadm (to discover new disk)
#cfgadm -alv (to see the new disk c0t1d0)


9.-If the step 8 fails enable the hotplug service and execute the commands again


# svcs -a | grep hotplug
disabled       Jul_17   svc:/system/hotplug:default
# svcadm enable svc:/system/hotplug:default
# svcs -a | grep hotplug
online       Jul_17   svc:/system/hotplug:default

#devfsadm (to discover new disk)
#cfgadm -alv (to see the new disk c0t1d0)


11.-Copy the new partition table


#prtvtoc /dev/rdsk/c0t0d0s2 | fmthard -s - /dev/rdsk/c0t1d0s2


12.-Create metadb to the new disk


#metadb -a -c2 /dev/rdsk/c0t1d0s7
root@ # metadb -i
        flags           first blk       block count
     a m  p  luo        16              8192            /dev/dsk/c0t0d0s7
     a    p  luo        8208            8192            /dev/dsk/c0t0d0s7
     a    p  luo        16400           8192            /dev/dsk/c0t0d0s7
     a        u         16              8192            /dev/dsk/c0t1d0s7
     a        u         8208            8192            /dev/dsk/c0t1d0s7
     a        u         16400           8192            /dev/dsk/c0t1d0s7

13.- Create the metadevices deleted


#metainit d86 1 1 c0t1d0s0
#metainit d85 1 1 c0t1d0s1
#metainit d81 1 1 c0t1d0s5
#metainit d80 1 1 c0t1d0s6

 

14.-Attach mirror with submirror


metattach d26 d86
metattach d25 d85
metattach d21 d81
metattach d20 d80

 

15.-Check sync process


#while true; do metastat | grep "Resync in progress"; sleep 5;clear;done
16.-Install  boot block in the new disk
#/usr/bin/installboot /usr/platform/`uname-i`/lib/fs/ufs/bootblk /dev/rdsk/c0t1d0s0
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