On Wed, Feb 05, 2003 at 04:36:03PM -0400, Patrick Boutilier wrote: > We are using LVM to give the ability to add disk space and expand our > reiserfs when necessary.
Is it possible to add disc space with ext3fs and LVM, too? > We are using LVM on top of hardware RAID 5 so as long as 2 disks don't > fail at once we should be OK. Hm, sounds nice :) To be more specific, what I've in mind is a setup like that, for 60--100 users: + 18 or 36 GB SCSI: system itselfe and about 20--25 GB /var for incoming/outgoing mail (incl. virus scanning) and the more actively used part of the cyrus mail store, quota of about 100 MB/user or 10 GB shared by the user.* hierarchy on it + 120 GB IDE to keep another cyrus mail store partition (archive) Users should move older mail from the default partition to the archive. Some shared folders will probably reside on the IDE discs, too. The archives will provide a quota of 1 GB/user. Two identical 120 GB IDE discs should be used to keep and mirror the archive. The SCSI disc should be mirrored also (at least the /var partition), though I'm not sure yet whether it's better to use a second SCSI disc for that or if it's a good idea to divide the IDEs into partitions of 100 GB and 20 GB each, so that the SCSI disc can be mirrored to the 20 GB partitions on the IDEs. Daily backups will probably be done to another 120 GB IDE disc. I'll use ext3fs for all partitions --- reiserfs or even xfs may have advantages, but I like ext3 more, and the expected number of files that have to be handled should be still ok for ext3. Is this a reasonable setup, and can it reliably be done with LVM? Or is it better to use raidtools2 for it? Or would you suggest to use hardware IDE RAID instead, maybe by forgoing SCSI? Any suggestions are appreciated --- I don't know how flexible LVM can make things, so a totally different setup might be even better. GH
