Re: [SLE] Linux software RAID, LVM, is this right?

On Monday 23 February 2004 09:53, Rajesh Saxena wrote:

--- Kenneth Schneider wrote:

...

I don't understand all of the extra work here. Why not just create one large raid1 set using ALL of both disks and then partition it up.

Hi Kenneth! I find splitting up arrays seems like a natural choice. The last big array is the only one with LVM so / needs to be separate so lilo or grub can boot using it.

...

LVM was designed to combine multiple disks and make them appear as one larger disk controlling the size by using volume groups. Since

you

...

have already combined the disks using raid what you are trying to do is pointless.

RAID1 does not combine many disks into one it is mainly for recovery sake. If one drive fails then other can be used until maintenance is done. I am mainly using LVM for volume management and filesystem snapshots for backups.

You are right, raid 1 does not combine, its simply mirroring. But Kenneth is right LVM is not needed here, and you are muddying the waters by insert it here. Other than a boot drive, there is little reason to split your big disk into many small ones. It is sometimes tricky to boot off of a software raid. Once you get the raid arrays set up, try withoug LVM and go directly to mounting the raid array and defining volumes therein. -- _____________________________________ John Andersen