Re: [lustre-discuss] MDT backup using dump

2016-04-22 Thread Dilger, Andreas
Nathan, The "dump" tools quite out of date and does not support several of the features that are present in modern ldiskfs, especially since some of those features are not even supported in the upstream e2fsprogs). It would not be usable for doing an MDT backup as-is, though conceivably it

[lustre-discuss] ZFS-lustre setup falis for me

2016-04-22 Thread Riccardo Veraldi
Hello, I am trying to deploy a small cluster with "zfs on lustre" setup for initial testing a SSD solution. I followed a few hints on the following resources: http://zfsonlinux.org/lustre-configure-single.html http://zfsonlinux.org/lustre.html I am working on rhel7 I installed the

Re: [lustre-discuss] non-empty files found when backing up MDT with LVM snapshots and tar

2016-04-22 Thread Dilger, Andreas
Nathan, This should be fixed with a newer version of tar I think. I don't recall if the sparse file handling was fixed in the 1.23 release or not. There was a simple patch to tar to handle sparse files properly, but it has been a long time since I looked at this and it might take me some time

[lustre-discuss] Possible bug in file size reporting

2016-04-22 Thread Kurt Strosahl
Good Morning, We just came across an interesting issue... three files were created last night that ls reports as having a size in the exabytes (though du shows as being the proper size). ll total 12198 -rw-r--r-- 1 4647714819775210200 Apr 22 01:48 file1 -rw-r--r-- 1 7810701297118485272

Re: [lustre-discuss] Possible bug in file size reporting

2016-04-22 Thread Kurt Strosahl
Please ignore... it looks like the user was creating sparse files. ll -alsh total 12M 878K -rw-r--r-- 1 4.1E Apr 22 01:48 file1 878K -rw-r--r-- 1 6.8E Apr 22 01:32 file2 582K -rw-r--r-- 1 544P Apr 21 15:34 file3 w/r, Kurt - Original Message - From: "Kurt Strosahl"