Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Hello, I'm looking for a way to have my DRBD resources resized and snapshotted. I am testing the following DRBD over LVM setup and procedures. Not sure if my thinking is sane as LVM still works as a bit of a black box to my mind. Please criticize. -I am using up to date DBRD 0.7 on CentOS 4.4 (2.6.9-42.0.8.ELsmp) -Disk layouts are identical on both nodes -Logical Volume V is into Volume Group G, some extra storage available in G -DRBD resource R's "disk" attribute is V -R's metadisk is on a separate partition, not a PV -I do mkfs -t ext3 on R -To resize R I plan to: a) Add a new disk into secondary b) Extend V at secondary with PV from new disk partition c) drbdadm resize R at secondary d) Repeat a, b, c at the other node e) ext2online R at the primary, mounted -To take a snapshot I plan to: a') Create a snapshot S into G, from original V, at the primary b') Use it, delete it Is all this sound? So far, I have done a) above with a new partition instead of a new disk, and e2fsck reports OK as I switch roles back and forth. I have used no stripe/extent controlling features. Should I care about other OK signs at the LVM level? If alright, is there a better setup/procedure given these goals? Thank you very much in advance -- Eduardo Grosclaude Universidad Nacional del Comahue Neuquen, Argentina