On Monday 05 March 2007 04:13 pm, Andreas Dilger wrote: > On Mar 05, 2007 15:41 +0100, Harald van Pee wrote: > > I have lustre 1.5.95 running with 3 ost on one machine and and mds and > > mdt on another. > > > > Unfortunately these files are created more likely on the ost which is > > more or less full then on the other 2 (one is less then 60% full). > > > > Therefore I can not use the full disk space. > > This is a bug in the free space management in the older 1.5.x betas that > was fixed recently. You should try out 1.5.97 and it should prefer to > allocate new files on the least full OST.
o.k. thats nice to here. I will try to update as soon as possible, but not before the end of next week. In the meanwhile I have switched off the full osc, which seems to work without any problems. > > One caveat - this decision is made at the time the file is first opened. > If you create a lot of small files, say with OST1 nearly full and OST3 > nearly empty then a lot more files will be created on OST3. If these > files grow slowly over time then it may be that OST1 becomes overly full > (because of the many more files created there) when it was less full. this can be a problem for our production cluster, but of course only if we run out of diskspace. But still the situation will be much improved, at the moment I have 160 GB free on one ost0, 70 GB on ost2 and just 100 MB on ost1, and the files will be created at least as often on ost1 as on the other two. _______________________________________________ Lustre-discuss mailing list [email protected] https://mail.clusterfs.com/mailman/listinfo/lustre-discuss
