On Tue, Aug 28, 2001 at 12:55:40PM +0200, Jan Schreckenbach wrote: > does this mean I can initially build a striped LV from two smaller > disks, let me say sda and sdb and later move the LE from sda to sdc > and from sdb to sdd (where sdc and sdb a bigger than sda/sdb)? Yes, that should work. Then the LEs would be just on sdc and sdd, and sda and sdb would be empty. > It is to be said that the performance of md RAID0 is somewhat better > than from striped LV's but I would prefer LVM if I could extend > a striped LV without rebuilding RAID/restoring data. Well, like I said, if you used md RAID0 underneath LVM, you could stripe across, say, sda and sdb, and then creat your LV on top of the md device, then when you wanted to extend it, create a striped md device across sdc and sdd and and extend the VG/LV to that md device. Anyway, it really depends upon your application. If you're really concerned about speed, you'd probably go with hardware RAID0 anyway, but that's a whole different discussion. Regards, -- AJ Lewis Sistina Software Inc. Voice: 612-638-0500 1313 5th St SE, Suite 111 Fax: 612-638-0500 Minneapolis, MN 55414 E-Mail: lewis sistina com http://www.sistina.com Current GPG fingerprint = 3B5F 6011 5216 76A5 2F6B 52A0 941E 1261 0029 2648 Get my key at: http://people.sistina.com/~lewis/gpgkey (Unfortunately, the PKS-type keyservers do not work with multiple sub-keys) -----Begin Obligatory Humorous Quote---------------------------------------- Behind every good computer -- is a jumble of wires 'n stuff. -----End Obligatory Humorous Quote------------------------------------------
Attachment:
pgp00046.pgp
Description: PGP signature