On Tuesday 20 October 2009, Andreas Dilger wrote: > On 18-Oct-09, at 16:04, Piotr Wadas wrote: > > Now, I did a simple count of MDT size as described in lustre 1.8.1 > > manual, > > and setup mdt as recommended. The question is, no matter I did right > > count > > or not, what actually will happen, if MDT partition runs out of space? > > Any chances to dump the whole MGS+MDT combined fs, supply a bigger > > block > > device, or extend partition size with some e2fsprogs/tune2fs trick ? > > This assumes, that no matter how big MDT is, it will be exhausted > > someday. > > It is true that the MDT device can become full at some point, but this > happens fairly rarely given that most Lustre HPC users have very large > files, and the size of the MDT is MUCH smaller than the space needed for > the file data. The maximum size of MDT is 8TB, and if you format the
Is that still true with recent kernels such as the one from SLES11? I thought ldiskfs is based on ext4 there? So we should have at least 16TiB and I'm not sure if all the e2fsprogs patches already have been landed to get 64-bit max sizes? Thanks, Bernd -- Bernd Schubert DataDirect Networks _______________________________________________ Lustre-discuss mailing list [email protected] http://lists.lustre.org/mailman/listinfo/lustre-discuss
