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, Jun 21, 2011 at 05:55:24PM +0200, Gianluca Cecchi wrote: > hello, > using drbd 8.3.8 in CentOS 5.6 as provided by extra repo. > testing/simulating condition when secondary is taken down and some of > its data are modified before restart it... > (or you want to verify that if any problem/bug have modified them, you > come back to safety when you restart the secondary) > > servers are drbdsrv1 and drbdsrv2, in Primary/Secondary with drbdsrv1 as Primary > with > 0: cs:Connected ro:Primary/Secondary ds:UpToDate/UpToDate C r---- > > drbd r0 on /dev/vdb1 for both nodes and then ext3 file system on top of drbd0 > > 1) [root at drbdsrv1 ~]# mount /dev/drbd0 /mnt/ > [root at drbdsrv1 ~]# dd if=/dev/zero bs=/mnt/testfile bs=1024k count=2048 > > Secondary receives 2Gb on the wire and remains updated > > 2) keep down secondary > > [root at drbdsrv2 ~]# service drbd stop > > 3) mount backing device on secondary Do not bypass DRBD. Well, of course you can. But if you do, don't blame DRBD for not keeping track of your doings. -- : Lars Ellenberg : LINBIT | Your Way to High Availability : DRBD/HA support and consulting http://www.linbit.com