CentOS 5.6 Error - dm-2 - write failed, user block limit reached

Just go an error on a fresh install of CentOS 5.6, it came on a SSH session:

• dm-2: write failed, user block limit reached

That user had a 1GB quota, and had filled 880MB of space. The user was running a copy of Confluence and was reindexing the database (SQL database about 800MB). So redid the quota to 8GB, restarted confluence, re-ran indexing. Still hit same error at about 99% completion.

sh-3.2$ quota
Disk quotas for user remnant (uid 144000):
     Filesystem  blocks   quota   limit   grace   files   quota   limit   grace
/dev/mapper/VolGroup04-LogVol40
                1030876  8216576 8216576            3838       0       0
sh-3.2$

Despite being well under quota, a copy command fails:

sh-3.2$ cp confluence-3.5.2-std.tar copy.tar
dm-2: write failed, group block limit reached.
cp: writing `copy.tar': Disk quota exceeded

Server is being managed by VirtualMin and WebMin.

The key is if a unique user and unique group are created for a virtual server, must raise the quota of both the user and the group.

Resources

• Search: webmin disk quotas
• http://doxfer.webmin.com/Webmin/DiskQuotas