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Re: [BackupPC-users] Best NAS device to run BackupPC ?
2011-05-17 11:53:33
Carl Wilhelm Soderstrom <chrome AT real-time DOT com>
wrote on 05/17/2011 11:40:14 AM:
> On 05/17 11:25 , Timothy J Massey wrote:
> > One option for using a NAS is to use a standard PC in front of
it and
> > mount the NAS via iSCSI (**NOT** NFS!!!) and use the NAS' storage
that
> > way. That will give you the best results: many have
tried to use pools
> > mounted via NFS, and few (none?) have succeeded. BackupPC
is pretty hard
> > on filesystems, and NFS is fragile.
>
> I've put the data pool on a firewire attachment to a DRobo NAS. It
does
> drive up load substantially as the system waits on I/O from the remote
> device.
Tomato, tomaahto... :)
The point was basically "any block-level attachment
(except maybe USB)". The problem comes from NFS' poor handling
of the zillions of hard links that BackupPC wants to use.
iSCSO/eSATA/Firewire are all block-level protocols.
NFS/SMB are file-level protocols. It's the file-level protocols
that either wont' work at all (SMB) or work very poorly (NFS). If
the system is given a block device it can format with something sane (EXT2/4/XFS/JFS)
then you'll be just fine, modulo the performance of the connection between
the computer and the device.
Timothy J. Massey
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