[lustre-discuss] backup restore docs not quite accurate?

[Andreas Dilger]

Removing the OI files is for ldiskfs backup/restore (eg. after tar/untar) when the inode numbers are changed. That is not needed for ZFS send/recv because the inode numbers stay the same after such an operation. 

If that isn't clear in the manual it should be fixed. 

Cheers, Andreas

> On Oct 18, 2023, at 23:42, Peter Grandi via lustre-discuss <lustre-discuss at lists.lustre.org> wrote:
> 
> I was asking this on the Slack channel but as I was typing it
> looks too complicated for chat, so here:
> 
> Lustre 2.15.2, EL8, MGT, MDT and OSTs on ZFS.
> 
> I am trying to copy the MGT and the MDT to larger zpools, so I
> created them on another server, and used 'zfs send' to copy them
> while the Lustre instance was frozen (for the last incremental).
> 
> The I have put the new zpool drives in the old server with same
> NID, and I following the "Operations Manual" here:
> 
> https://doc.lustre.org/lustre_manual.xhtml#backup_fs_level.restore
> "Remove old OI and LFSCK files.[oss]# rm -rf oi.16* lfsck_* LFSCK
> Remove old CATALOGS. [oss]# rm -f CATALOGS"
> 
> But I am getting a lot of error when removing "oi.16*", of the
> "directory not empty" sort. For example "cannot remove
> 'oi.16/0x200011b90:0xabe1:0x0': Directory not empty"
> 
> Please suggest some options.
> _______________________________________________
> lustre-discuss mailing list
> lustre-discuss at lists.lustre.org
> http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org