mirror vg01

[kholikt]

I have a secondary swap on vg01. I was told to mirror this as well.

Is this right that I just do a

vgextend vg01 /dev/rdsk/c2t2d0
lvextend -m 1 /dev/vg01/lvswap /dev/dsk/c2t2do

[Steven Sim Kok Leong · Accepted solution]

Hi,

If you insist on mirroring swap, the commands look alright to me. To verify, you can try to perform the an lvlnboot to check out the swap LVs.

# lvlnboot -v

Also, you can simulate a harddisk failure by pulling out the primary root disk containing the swap primary copy and observe if it fails over.

Hope this helps. Regards.

Steven Sim Kok Leong

[fg_1]

Kholikt

Your commands are good there, no problems with those listed.

I agree with steven about using the lvlnboot -v command.

Good luck.

FG.

[James R. Ferguson]

Hi:

'lvlnboot' reports information for the boot disk. If you want to determine where you have active swap space, use:

# swapinfo -tam

To determine if you have mirrors (with current and not stale extents) use:

# lvdisplay -v /dev/vgXX/lvolN

...for that matter, a quick 'lvdisplay' without the '-v'erbose option will show whether any stale extents exist or not by looking at the "LV Status" line: "avilable/syncd" means none; "available/stale" means some!

Regards!

...JRF...

Regards!

...JRF...