On 3/4/13 5:20 PM, Mark Campbell wrote:
> Oh, and while I'm thinking of it, what are your thoughts on using ZFS' dedup
> feature on a BackupPC pool? I'm aware that a goodly amount of RAM would be
> required for that feature. But since BackupPC's dedup feature is file-based,
> and ZFS' dedup f
On 3/6/13 11:10 AM, Lars Tobias Skjong-Børsting wrote:
> Also, like Tyler said, you should disable BackupPC's pooling to increase
> your performance.
And you must also disable compression in BackupPC, and enable it in ZFS
instead. Compressing the files will destroy your dedup potential.
--
Best
Hi,
I have a problem for which I'm not sure a proper solution exists, but
let me try anyway.
In my current setup, I have a BackupPC server with about 4.0TB of
storage of which 2.7TB is in use. One host is responsible for most of
the backup data (~ 1.5TB), and yesterday I migrated this host to a
d
On Wed, Mar 6, 2013 at 7:48 AM, Maarten wrote:
> I have a problem for which I'm not sure a proper solution exists, but
> let me try anyway.
>
> In my current setup, I have a BackupPC server with about 4.0TB of
> storage of which 2.7TB is in use. One host is responsible for most of
> the backup da
I've not personally tried this, so someone else who has can comment on whether
this would work or not, but it seems to me that if you were to rename your
backups to the new servername, that they would show up for the new server
accordingly. These would be the locations that you would need to ch
Hi,
On 03/06/2013 03:46 PM, Les Mikesell wrote:
>> So my question is: can anybody think of an elegant way to re-use the
>> > currently backed up data so that I can keep the current backups and not
>> > start from scratch? The not-so-elegant solution that comes to mind is to
>> > rename the old ho
On Wed, Mar 6, 2013 at 9:28 AM, Maarten wrote:
>
>>> So my question is: can anybody think of an elegant way to re-use the
>>> > currently backed up data so that I can keep the current backups and not
>>> > start from scratch? The not-so-elegant solution that comes to mind is to
>>> > rename the ol
On 03/06/2013 04:46 PM, Les Mikesell wrote:
> On Wed, Mar 6, 2013 at 9:28 AM, Maarten wrote:
>
>> Thanks for the quick response. I assumed that BackupPC was just creating
>> hardlinks in the pool for files on the same location. If what you say is
>> correct, does that mean it calculates checksums
I don't mean to bring up another "RTFM" moment, but I've searched around, and I
haven't found the location for enabling/disabling the pooling. The compression
option I've found, but not pooling.
Thanks,
--Mark
-Original Message-
From: Lars Tobias Skjong-Børsting [mailto:li...@snota.no
On Wed, Mar 6, 2013 at 9:56 AM, Maarten wrote:
>>>
>> Yes - the pool/cpool directory is full of extra hardlinks where the
>> hash of the content is the name to quickly match up new items (plus a
>> little extra work to deal with collisions). Rsync just follows the
>> existing pc directory tree th
On Wed, Mar 6, 2013 at 10:01 AM, Mark Campbell
wrote:
> I don't mean to bring up another "RTFM" moment, but I've searched around, and
> I haven't found the location for enabling/disabling the pooling. The
> compression option I've found, but not pooling.
I don't think you can - short of changi
Mark Campbell wrote on 03/06/2013 11:01:28 AM:
> I don't mean to bring up another "RTFM" moment, but I've searched
> around, and I haven't found the location for enabling/disabling the
> pooling. The compression option I've found, but not pooling.
There is no way of doing this. If you don't
> I've not personally tried this, so someone else who has can comment on
> whether this would work or not, but it seems to me that if you were to
> rename your backups to the new servername, that they would show up for the
> new server accordingly. These would be the locations that you would need
On Wed, Mar 6, 2013 at 10:14 AM, Timothy J Massey wrote:
>
> > I don't mean to bring up another "RTFM" moment, but I've searched
> > around, and I haven't found the location for enabling/disabling the
> > pooling. The compression option I've found, but not pooling.
>
>
> There is no way of doing
I see. I just assumed that it was possible based on Lars' comments. Something
I just noticed as I was browsing through the config files, could it be possible
to disable this by changing $Conf{HardLinkMax} = 31999 to 1?
Thanks,
--Mark
-Original Message-
From: Les Mikesell [mailto:les
Interesting. Well then I guess the answer is to not muck with pooling (as
redundant as it is, at least it theoretically shouldn't hurt anything), disable
compression, and enable dedup & compression on ZFS.
Thanks,
--Mark
-Original Message-
From: Les Mikesell [mailto:lesmikes...@gmail
On Wed, Mar 6, 2013 at 11:43 AM, Mark Campbell
wrote:
> I see. I just assumed that it was possible based on Lars' comments.
> Something I just noticed as I was browsing through the config files, could it
> be possible to disable this by changing $Conf{HardLinkMax} = 31999 to 1?
That might mak
On Wed, Mar 6, 2013 at 12:16 PM, Mark Campbell
wrote:
> Interesting. Well then I guess the answer is to not muck with pooling (as
> redundant as it is, at least it theoretically shouldn't hurt anything),
> disable compression, and enable dedup & compression on ZFS.
Yes, I'd do that and try out
On Wed, 6 Mar 2013 10:10:17 -0600 Les Mikesell
wrote:
> On Wed, Mar 6, 2013 at 9:56 AM, Maarten wrote:
> >>>
> >> Yes - the pool/cpool directory is full of extra hardlinks where the
> >> hash of the content is the name to quickly match up new items
> >> (plus a little extra work to deal with coll
On 3/4/13 5:38 PM, Tyler J. Wagner wrote:
> Just disable BackupPC's pooling entirely. You'd have to disable
> BackupPC_nightlyAdmin, and the link process after completing the dump
> stage.
On 3/6/13 11:10 AM, Lars Tobias Skjong-Børsting wrote:
> Also, like Tyler said, you should disable BackupPC's
On Mar 6, 2013 10:46 AM, "Michael Stowe"
wrote:
>
>
> > I've not personally tried this, so someone else who has can comment on
> > whether this would work or not, but it seems to me that if you were to
> > rename your backups to the new servername, that they would show up for
the
> > new server ac
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