Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
James Vanns wrote: > What are your thoughts on the following setup? > > 2x physical nodes - identical > DRBD latest 'pre' 0.8 source > Fedora Core 6 host OS/dom0 (on both nodes) > Crossover cable between the two nodes with 10.0.0.1, 10.0.0.2 > respectively purely for DRBD chatter. > Metadata (of DRBD) stored on a separate disk on each machine > (/dev/sda5). > DRBD 'source' drive is /dev/sdb and target drive is /dev/drbd0 > This is almost exactly my setup as well. Seems reasonable. > ...Therefore Xen1 will never write to the same LV as Xen2. But then there > is the question of LVM meta data etc. logs and caches etc. of all these > layers - how do you think DRBD will handle it without the use of OCFS or > GFS as the choice of FS on the Xen LV drives > DRBD handles it just fine, since it's working on a block device layer. I use ext3 with good results. I compile my own LVM, device-mapper and cluster suite, to get it the way i want it, with clvmd and all. This ensures that there will be no problem with meta data and such. DRBD does a good job here, and it works quite good with the new pre6. Nothing much to add there. My setup works well with migration, which is why I use drbd in the first place. /Håkan