Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
On Tue, Dec 16, 2008 at 09:04:11AM +0100, Martin Winkler wrote: > Hi all, > > I have a relatively new drbd setup and just realized that there is a > slight difference in size on the partitions I am using: > node1: /dev/sda3 (/dev/drbd0): 232717558 blocks, ext3 > /dev/sdb1 (/dev/drbd1): 232717590 blocks, ext3 > > node2: /dev/sda3 (/dev/drbd1): 232717558 blocks, ext3 > /dev/sdb1 (/dev/drbd0): 232717590 blocks, ext3 > > The metadata is always on a different partition. > After the sync DRBD did not raise any error as far as I can tell, > and /proc/drbd says the drives are fully UpToDate. > > Now my question: Is this difference significant if drbd did not raise > any errors? I am feeling a bit uncomfortable here. What should I do to > make the same sizes in case there is a problem with my setup? drbd "agrees" to the minimum of the sizes of the lower level devices. you can check cat /proc/partitions to see what size (in kB) your drbd's actually are. you can check with tune2fs -l what size the fs thinks it is. (multiply "Block count:" and "Block size:", you get the size in Byte) if the fs thinks it is larger than drbd, you need to resize (shrink) it. unmount, stop drbd, fsck & resize on the lower level device, start drbd, force a full sync, go on. -- : Lars Ellenberg : LINBIT | Your Way to High Availability : DRBD/HA support and consulting http://www.linbit.com DRBD® and LINBIT® are registered trademarks of LINBIT, Austria. __ please don't Cc me, but send to list -- I'm subscribed