On 09/22/2010 02:48 PM, putcha narayana wrote:
Our current DRBD version is 8.0.16. We are constrained by the
linux kernel version we are using to upgrade to latest drbd
version.
In this version after 70 - 80 failovers, we see that on board that
becomes cluster-primary FSCK -fy fixes some inodes.
This change in inodes is not being replicated to standby board.
If we perform failover at this stage, standby board that becomes
primary shows file corruption.
File Corruption => Content of one file is seen in another file.
Some one can help us with DRBD version which fixed this
sync issue.
Solution:
In Run Level 3 we start a script to check the status of DRBD. If
it is not in expected state then we run recovery. This change
helped us clock 500+ failovers without any issue.
Version 8.2.5 and up seems to have verify to address this issue. I
run the verify regularly and before any planned switchover (that
safes a lot of bandwidth compared to a full sync). But that's not
available in the version you need to use.
Theo
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