[DRBD-user] File corruption in drbd partition

Lars Ellenberg lars.ellenberg at linbit.com
Tue Sep 7 12:16:59 CEST 2010

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, Sep 07, 2010 at 09:35:48AM +0000, putcha narayana wrote:
> Hi,
> We are running continuous failovers on a redundant setup (Active / Standby).
> After few failovers we observe content of file x appears inside file y.

How much is "few"?
What is the IO load?
How do you trigger the failover?
DRBD version, kernel version, file system type?
Volatile caches involved?
How often/when do you fsck?

> In one particular case we observed inode corruption, when fsck command is run on /repl partition.
>          Multiply-claimed block(s) in inode 28: 1233 1249 1251 1252
>          Multiply-claimed block(s) in inode 1183: 1251 1252
>          Multiply-claimed block(s) in inode 1184: 1233
>          Multiply-claimed block(s) in inode 1185: 1249
> When fsck -fy is run on /repl partition then the end result is content of file x is seen in file y.

: Lars Ellenberg
: LINBIT | Your Way to High Availability
: DRBD/HA support and consulting http://www.linbit.com

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