On 10/08 11:07 , Frédéric Massot wrote:
> After moving the BackupPC data on the new logical volume and thus the 
> new file system, the old logical volume will no longer be used. I could 
> delete it but how I could use this free space?

Expand your new volume and filesystem to use it.
Are you using LVM, or just plain partitions?

> Does with XFS the inode number increases with increasing file system size?

XFS doesn't really have a problem with inodes.

> Some people use XFS on Debian without problem?

I've used it for some years. If you do use XFS, make sure you have enough
space in RAM+swap to accomodate the xfs_check tool, which is notoriously
memory-hungry. My suggested filesystem layout is something like:

30GB /, using ext4
10GB swap
remainder of space in a separate partition mounted on /var/lib/backuppc.

I've found I needed a good 5GB or more swapfile to accomodate fscking a 9TB
filesystem; but that's only the rougest metric. So I'll suggest 10GB of
swap. It seems like a horrible waste of space since most will never be used;
but compared to a multi-TB filesystem its vanishingly small, and it
simplifies the process when you fsck your XFS filesystem (which shouldn't be
necessary; but hardware does fail, and when you have hardware errors,
sometimes you need to fsck).


-- 
Carl Soderstrom
Systems Administrator
Real-Time Enterprises
www.real-time.com

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