Solaris 6 Disk replacement
SOLARIS 6 DISK REPLACEMENT
In this example, the disk to be replaced is c0t0d0, which is currently mirrored with c0t8d0
Run the below commands.
cd /usr/opt/SUNWmd/sbin # This is where all the commands for disk replacement are located.
Disk to be replaced c0t0d0 —>c0t8d0 to be used for labelling(since they’re mirrored) Run command:
cfgadm -av c0
For more information about the cfgadm command and it’s uses please visit: #http://docs.oracle.com/cd/E23824_01/html/821-1462/cfgadm-1m.html
Now run metastat -p to determine the mirrors and submirror Note, save the above information somewehere, this will be used in detaching and also reattaching the mirrors
bash-3.2$ metastat -p
d0 -m d10 d20 1
d10 1 1 c0t0d0s1
d20 1 1 c0t8d0s1
d3 -m d13 d23 1
d13 1 1 c0t0d0s0
d23 1 1 c0t8d0s0
d4-m d14 d24 1
d14 1 1 c0t0d0s5
d24 1 1 c0t8d0s5
d5 -m d15 d25 1
d15 1 1 c0t0d0s3
d25 1 1 c0t8d0s3
d6 -m d16 d26 1
d16 1 1 c0t0d0s1
d26 1 1 c0t8d0s1
#Now proceed to detach the mirrors
metadetach -f d0 d10
metadetach -f d3 d13
metadetach -f d4 d14
metadetach -f d5 d15
metadetach -f d6 d16
Now we need to clear the metadevices that we detached from above.
metaclear d10 d13 d14 d15 d16 && ./metastat -p
delete the state database replicas using the below command
./metadb -d c0t0d0s7
Show the new config.
./metastat -p
Now insert the New Disk and after it's initialized continue below
format
Label it now? y
format> label
ready to label disk, continue? y
format>q
##clear slice "7"
metadb -d c0t0d0s7
#Copy the partition table from c0t8d0
prtvtoc /dev/rdsk/c0t8d0s2 | fmthard -s - /dev/rdsk/c0t0d0s2
metadb -a -c 3 c0t0d0s7
#Configure the metadevices on the new disk
metainit d10
metainit d13
metainit d14
metainit d15
metainit d16
#Reattach the mirrors and the submirrors
metattach d0 d10
metattach d3 d13
metattach d4 d14
metattach d5 d15
metattach d6 d16
#Run below command to check the status of the disk re-sync status
while true; do clear; ./metastat |grep sync ; sleep 15; done
Sam Njoroge
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