Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
On 10/27/2010 11:04 AM, Thomas Baumann wrote: > Hi, > > so just do what the message says: zero the metadata on the underlying > storage: > > dd if=/dev/zero of=/dev/VolGroup00/LogVol00 bs=1M count=1 > > This should help. > > Best regards, > > Thomas. Hi, it appears the OP would like his 900G filesystem not destroyed ;) So no, you might not want to do that. >From what I can see, you probably want to use external metadata. Can you shrink one of your LV's to make room for an additional dedicated metadata disk? Least pain that way. Alternatively, just shrink the fs in /var/opt to make room for the metadata. Are these mailservers in a failover cluster? If you can take them down for maintenance one at a time, you should be able to modify the filesystems. >> Should I use >> http://www.drbd.org/users-guide/s-lvm-lv-as-drbd-backing-dev.html >> Mean Should I create a lvm device then I map drbd device on it. You are trying this already, as far as I can tell from your config. >> >> Is there any way that I donot change the partition table, >> Mean I donot change size of any partition. or create any partition? >> >> An other question: >> What should I place in "disk /dev/VolGroup00/LogVol00;" should I use >> 'disk /sdb2" or "disk /sda2" I don't fully understand your layout. Does your PV comprise /dev/sda2? Is /dev/sdb2 used at all atm? >> I just wnat to have a mirror of /var/opt directory What is currently mounted as /var/opt. The current partition of /var/opt should become your backing device, then mount /dev/drbd0 as /var/opt. HTH, Felix