On Thu, Jul 12, 2012 at 7:32 PM, Bob Friesenhahn
wrote:
> On Thu, 12 Jul 2012, bofh wrote:
>> When I do a snapshot, that file is part of the snapshot. But are
>> changes within the file kept as well?
>
> Only the difference (at block level) between the snapshots is kept.
When I do a snapshot, that file is part of the snapshot. But are
changes within the file kept as well?
In other words, is it useful to have snapshots of a postgresql
database server? If a database file uses 10% of the pool, and changes
20% between each snapshot, would the pool run out of space a
On Wed, May 16, 2012 at 10:53 AM, Paul Kraus wrote:
> What do people like today for 7x24 operation SATA drives? I am
> willing to consider 2TB, but don't really need the extra capacity (but
> if that is all the market offers, I don't have to use the other half
> :-) I found a Seagate Constellat
On Tue, May 29, 2012 at 6:54 AM, John Martin wrote:
> $ zdb -C | grep ashift
> ashift: 12
> ashift: 12
> ashift: 12
>
That's interesting. I just created a raidz3 pool out of 7x3TB drives.
My drives were
ST3000DM001-9YN1
Hitachi HDS72303
Hitachi HDS72303
S
performance is lower, of course.
On Wed, May 16, 2012 at 2:08 PM, Jim Klimov wrote:
> Hello fellow BOFH,
> I also went by that title in a previous life ;)
>
:)
--
http://www.glumbert.com/media/shift
http://www.youtube.com/watch?v=tGvHNNOLnCk
"This officer's men seem to foll
On Wed, May 16, 2012 at 1:45 PM, Jim Klimov wrote:
> Your idea actually evolved for me into another (#7?), which
> is simple and apparent enough to be ingenious ;)
> DO use the partitions, but split the "2.73Tb" drives into a
> roughly "2.5Tb" partition followed by a "250Gb" partition of
> the sa
