Move Vpar from 1 Npar to another

[Michelle Barton]

We plan on moving an existing vpar from npar1 to npar0 and the existing vpar from npar0 to npar1 (basically a vpar swap between npar's Both vpar's boot from our SAN. I'm in the preliminary stages and know very little about vpar's, so I thought I'd post this for some help/guidance. Anyone have experience with this?

Thanks,
Michelle

[Alzhy · Accepted solution]

Michelle,

You can do this 2 ways:

(1) w/o SAN rezone (Downtime needed on the nPars to swap cards between nPar0 and nPar1)

(2) w/ SAN rezone (No Downtime on the nPars)


Method 1 & 2 are similar, the only difference is the downtime required for (1) with the swap of the cards whilst method (2) does not.

The following is the procedure:

1. Login to the vPars to be swapped.
2. Get your SAN boot Path:

# lvlnboot -v |grep "Boot Disk"
/dev/dsk/c11t15d5 (0/0/12/1/0/4/0.2.19.0.7.15.5) -- Boot Disk

3. Shutdown the vPar.

4. From another vPar on the same nPar, remove the vPar to be moved:

# vparremove -p vparX
5. If Method 1 - shutdown all remaining vPars/nPars.

6. If Method 2 - no need to shutdown the other vPars, Zone your SAN so vParX and vParY HBAs are swapped.

For each vPar:

7. Login to a running vPar (say vParA) on the same nPar where you want to re-establish the moved vPar

8. Recreate the vPar,

vparcreate -p vparx -a cpu::2 -a cpu:::2:8 -a mem::8912 \
-a io:a.b.c -a io:x.y.z \
-a io:x/y/x/1/0/4/0.2.19.0.7.15.5:BOOT

Where a.b.c or x.y.z are the new locations of your migrated vPar's I.O devices (FC-HBA, LAN, etc..) on its new nPar.

Note that you need to be familiar with determining HW Paths.

Let me know if you need help in this area.

9. Boot your migrated vPar in LVM Maint mode to fix up your vg00 and fix your LAN.

vparA# vparboot -p vparx -o "-lm"

Let me know if you need help in this area as well.


10. vg00 and LAN fixed, reboot multi user...


Done!

[Michelle Barton]

I'm in the middle of this now, BUT, I can't seem to boot off of the root disk even though I shared the disk between the 2 systems. Every time I try, I receive a system panic. Any ideas?