ZFS - moving from a zraid1 to zraid2 pool with 1.5tb disks

[Josef Karthauser]

Brill! Thanks :)
Joe



On 8 Jan 2011, at 09:50, Jeremy Chadwick <freebsd at jdc.parodius.com> wrote:

> On Sat, Jan 08, 2011 at 09:14:19AM +0000, Josef Karthauser wrote:
>> On 7 Jan 2011, at 17:30, Artem Belevich <fbsdlist at src.cx> wrote:
>>> One way to get specific ratio for *your* pool would be to collect
>>> record size statistics from your pool using "zdb -L -b <pool>" and
>>> then calculate L2ARC:ARC ratio based on average record size. I'm not
>>> sure, though whether L2ARC stores records in compressed or
>>> uncompressed form.
>> 
>> Can someone point me to a reference describing the various zfs caches available? What's the arc and zil? Ive been running some zfs for a few years now, and must have missed thus entire subject :/.
> 
> ARC:   http://en.wikipedia.org/wiki/ZFS#Cache_management
> L2ARC: http://en.wikipedia.org/wiki/ZFS#Storage_pools
> L2ARC: http://blogs.sun.com/brendan/entry/test
> Both:  http://www.c0t0d0s0.org/archives/5329-Some-insight-into-the-read-cache-of-ZFS-or-The-ARC.html
> Both:  http://nilesh-joshi.blogspot.com/2010/07/zfs-revisited.html
> ZIL:   http://blogs.sun.com/perrin/entry/the_lumberjack
> ZIL:   http://blogs.sun.com/realneel/entry/the_zfs_intent_log
> 
> Enjoy.
> 
> -- 
> | Jeremy Chadwick                                   jdc at parodius.com |
> | Parodius Networking                       http://www.parodius.com/ |
> | UNIX Systems Administrator                  Mountain View, CA, USA |
> | Making life hard for others since 1977.               PGP 4BD6C0CB |
> 
>