Simpler Navigation for Servers and Operating Systems
Completed: a much simpler Servers and Operating Systems section of the Community. We combined many of the older boards, so you won't have to click through so many levels to get at the information you need. Check the consolidated boards here as many sub-forums are now single boards.
Operating System - Tru64 Unix
cancel
Showing results for
Did you mean:

SOLVED
Go to solution

## LSM RAID 1+0 Possible?

Is it possible to create a RAID 1+0 configuration using only LSM on Tru64 5.1b? The docs say LSM does 0, 1, 0+1, and 5 but are silent about 1+0.

Thanks.

Mario
6 REPLIES
Honored Contributor

## Re: LSM RAID 1+0 Possible?

Hi,

yes, it is possible. You build two plexes with 3 striped disks and these plexes you mirror. You find it in the docs for lsm page 4-16.

greetings,

Michael

## Re: LSM RAID 1+0 Possible?

Thanks, Michael. Unless I'm mistaken, page 4-16 of the LSM manual shows how to make RAID 0+1 volumes. That is, mirroring two stripes. I'm looking to do the inverse, striping across mirrors.

Mario
Honored Contributor

## Re: LSM RAID 1+0 Possible?

Hi Mario,

yes, you are right. I overlooked that detail. It seems not possible because you have only striped or concatenated plexes and not a mirrored one. The top layer is always the mirror.

greetings,

Michael
Honored Contributor

## Re: LSM RAID 1+0 Possible?

What issue are you want to address here ?
If intention is to increase the size of the mirrored volume, you could try "volassist grow"

__ Johan.

_JB_
Esteemed Contributor
Solution

## Re: LSM RAID 1+0 Possible?

I suspect it's the availability issue of 1+0 versus 0+1.

Unfortunately this can not be done with LSM.