[zfs-discuss] L2ARC, block based or file based?

2012-01-13 Thread Matt Banks
I'm sorry to be asking such a basic question that would seem to be easily found on Google, but after 30 minutes of "googling" and looking through this lists' archives, I haven't found a definitive answer. Is the L2ARC caching scheme based on files or blocks? The reason I ask: We have several da

[zfs-discuss] All (pure) SSD pool rehash

2011-09-27 Thread Matt Banks
I know there was a thread about this a few months ago. However, with the costs of SSD's falling like they have, the idea of an Oracle X4270 M2/Cisco C210 M2/IBM x3650 M3 class of machine with a 13 drive RAIDZ2 zpool (1 hot spare) is really starting to sound alluring to me/us. Especially with so

Re: [zfs-discuss] cannot destroy snapshot

2011-09-16 Thread Matt Banks
On Apr 11, 2011, at 3:22 PM, Paul Kraus wrote: > On Wed, Apr 6, 2011 at 1:58 PM, Rich Morris wrote: >> On 04/06/11 12:43, Paul Kraus wrote: >>> >>> xxx> zfs holds zpool-01/dataset-01@1299636001 >>> NAME TAGTIMESTAMP >>> zpool-01/dataset-01@1299636001 .

Re: [zfs-discuss] ZFS + L2ARC + Cluster.

2010-11-15 Thread Matt Banks
On Nov 15, 2010, at 4:15 PM, Erik Trimble wrote: > On 11/15/2010 2:55 PM, Matt Banks wrote: >> I asked this on the x86 mailing list (and got a "it should work" answer), >> but this is probably more of the appropriate place for it. >> >> In a 2 node Sun Cl

[zfs-discuss] ZFS + L2ARC + Cluster.

2010-11-15 Thread Matt Banks
I asked this on the x86 mailing list (and got a "it should work" answer), but this is probably more of the appropriate place for it. In a 2 node Sun Cluster (3.2 running Solaris 10 u8, but could be running u9 if needed), we're looking at moving from VXFS to ZFS. However, quite frankly, part of