how to migrate root file systems to new EMC SAN disk

[Michal Kapalka (mikap)]

hi,

but you could also use DRD to clone the system to another disk.

https://h20392.www2.hp.com/portal/swdepot/displayProductInfo.do?productNumber=DynRootDisk

and the latest way is to make a Ignite backup / restore.

mikap

[Vishu · Accepted solution]

Hi Brian,

Here is the procedure. Suppose your new SAN disk is c0t5d0 and old SAN disk is c0t0d0. Then,

# pvcreate -f -B /dev/rdsk/c0t5d0
# vgextend /dev/vg00 /dev/dsk/c0t5d0
# mkboot -l /dev/rdsk/c0t5d0
# mkboot -a "hpux -lq (;0)/stand/vmunix" /dev/rdsk/c0t5d0
# mkboot -b /usr/sbin/diag/lif/updatediaglif2 -p ISL -p AUTO -p HPUX -p LABEL /dev/rdsk/c0t5d0
# lvextend -m 1 /dev/vg00/ /dev/dsk/c0t5d0 (Repeat for every LV in VG00)
# lvlnboot -R /dev/vg00
# lvlnboot -v

Now, you must see both disks in lvlnboot -v output. if yes, then you can proceed reducing your LV on old disk.


#lvreduce -m 0 -A n /dev/vg00/ /dev/dsk/c0t0d0 (Repeat for every LV in VG00)

# vgreduce vg00 /dev/dsk/c0t0d0

Check o/p of 'setboot' command, if primary path is not set. Set by below command.

#setboot -p

[Brian Lee_4]

Thank you all.