Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
> This exactly what i have now on one of M servers: > [root at rhclm ~]# lsscsi > [0:0:0:0] disk IET VIRTUAL-DISK 0 /dev/sda > [1:0:0:0] disk IET VIRTUAL-DISK 0 /dev/sdb > [root at rhclm ~]# > > here, sda and sdb are block devices imported via iscsi from computer1 and > computer2. > > Question: is possible to group sda and sdb using raid1 software in an array > (/dev/md0) and after that, on top of md0 to create a logical volume and run > GFS? > > AFAIK THIS DESIGN IS IMPOSSIBLE because raid software on linux is NOT > CLUTER-AWARE? So, just using iscsi (or gnbd) to export volX is NOT ENOUGH > because if i am loosing one computerX i am loosing all data on GFS! Right? RedHat's LVM documentation appears to suggest that you can let LVM do the mirroring, and that LVM is cluster-aware (clvmd). I've certainly used LVM in an RH-CS cluster, and it works pretty well. Talking that a step further, it _appears_ that you could configure a cLVM mirror over those two devices, then run GFS over the top, but I'd really want to test that before I believed it, let alone trusted it. Mark. -- Mark Watts BSc RHCE MBCS Senior Systems Engineer QinetiQ Applied Technologies GPG Key: http://www.linux-corner.info/mwatts.gpg -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 197 bytes Desc: This is a digitally signed message part. URL: <http://lists.linbit.com/pipermail/drbd-user/attachments/20080812/e837df08/attachment.pgp>