After running our two node cluster concurrently for a number of days, I wanted to take a look at the health of the underlying GFS2 file system.
And although we didn’t run into any problems during or testing, I was surprised to still see hundreds of thousands, if not millions, of the following message when running and gfs2_fsck on the file system:
Ondisk and fsck bitmaps differ at block 86432030 (0x526d91e)
Ondisk status is 1 (Data) but FSCK thinks it should be 0 (Free)
Metadata type is 0 (free)
I assume this is not good, although processes reading and writing to/from the filesystem seem to be running smoothly. I ran the fsck days after the last write operation on the cluster.
I’m currently running the following on Centos 5.4:
The GFS2 file system is running on top of a clustered LVM partition.
Any input would be greatly appreciated.
Mark de Jong