From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss-
boun...@opensolaris.org] On Behalf Of Jim Klimov
Thanks... but doesn't your description imply that the sync writes
would always be written twice?
That is correct, regardless of whether you have slog or not. In the case of
On Jul 29, 2012, at 3:12 PM, opensolarisisdeadlongliveopensolaris
opensolarisisdeadlongliveopensola...@nedharvey.com wrote:
From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss-
boun...@opensolaris.org] On Behalf Of Jim Klimov
I wondered if the copies attribute can be considered
For several times now I've seen statements on this list implying
that a dedicated ZIL/SLOG device catching sync writes for the log,
also allows for more streamlined writes to the pool during normal
healthy TXG syncs, than is the case with the default ZIL located
within the pool.
On Mon, Jul 30, 2012 at 8:58 AM, Roy Sigurd Karlsbakk r...@karlsbakk.net
wrote:
For several times now I've seen statements on this list implying
that a dedicated ZIL/SLOG device catching sync writes for the log,
also allows for more streamlined writes to the pool during normal
healthy
Dear ZFS-Users,
I want to switch to ZFS, but still want to encrypt my data. Native
Encryption for ZFS was added in ZFS Pool Version Number
30http://en.wikipedia.org/wiki/ZFS#Release_history,
but I'm using ZFS on FreeBSD with Version 28. My question is how would
encfs (fuse encryption) affect zfs
Also keep in mind that if you have an SLOG (ZIL on a separate
device), and then lose this SLOG (disk crash etc), you will probably
lose the pool. So if you want/need SLOG, you probably want two of
them in a mirror…
That's only true on older versions of ZFS. ZFSv19 (or 20?) includes
the
On Mon, Jul 30, 2012 at 9:38 AM, Roy Sigurd Karlsbakk r...@karlsbakk.net
wrote:
Also keep in mind that if you have an SLOG (ZIL on a separate
device), and then lose this SLOG (disk crash etc), you will probably
lose the pool. So if you want/need SLOG, you probably want two of
them in a
On Mon, Jul 30, 2012 at 5:20 AM, Tristan Klocke
tristan.klo...@googlemail.com wrote:
I want to switch to ZFS, but still want to encrypt my data. Native
Encryption for ZFS was added in ZFS Pool Version Number 30, but I'm using
ZFS on FreeBSD with Version 28. My question is how would encfs (fuse
On 07/29/12 14:52, Bob Friesenhahn wrote:
My opinion is that complete hard drive failure and block-level media
failure are two totally different things.
That would depend on the recovery behavior of the drive for
block-level media failure. A drive whose firmware does excessive
(reports of up
- Opprinnelig melding -
On Mon, Jul 30, 2012 at 9:38 AM, Roy Sigurd Karlsbakk
r...@karlsbakk.net wrote:
Also keep in mind that if you have an SLOG (ZIL on a separate
device), and then lose this SLOG (disk crash etc), you will
probably
lose the pool. So if you want/need
On Mon, Jul 30, 2012 at 10:20 AM, Roy Sigurd Karlsbakk
r...@karlsbakk.net wrote:
On 151a2, man page just says 'use this or that mountpoint' with import -m,
but the fact was zpool refused to import the pool at boot when 2 SLOG devices
(mirrored) and 10 L2ARC devices were offline. Should
On Mon, 30 Jul 2012, Roy Sigurd Karlsbakk wrote:
Should OI/Illumos be able to boot cleanly without manual action with
the SLOG devices gone?
If this is allowed, then data may be unnecessarily lost.
When the drives are not all in one chassis, then it is not uncommon
for one chassis to not
On Jul 30, 2012, at 10:20 AM, Roy Sigurd Karlsbakk wrote:
- Opprinnelig melding -
On Mon, Jul 30, 2012 at 9:38 AM, Roy Sigurd Karlsbakk
r...@karlsbakk.net wrote:
Also keep in mind that if you have an SLOG (ZIL on a separate
device), and then lose this SLOG (disk crash etc), you will
On Mon, Jul 30, 2012 at 12:44 PM, Richard Elling
richard.ell...@gmail.comwrote:
On Jul 30, 2012, at 10:20 AM, Roy Sigurd Karlsbakk wrote:
- Opprinnelig melding -
On Mon, Jul 30, 2012 at 9:38 AM, Roy Sigurd Karlsbakk
r...@karlsbakk.net wrote:
Also keep in mind that if you have an
On Jul 30, 2012, at 12:25 PM, Tim Cook wrote:
On Mon, Jul 30, 2012 at 12:44 PM, Richard Elling richard.ell...@gmail.com
wrote:
On Jul 30, 2012, at 10:20 AM, Roy Sigurd Karlsbakk wrote:
- Opprinnelig melding -
On Mon, Jul 30, 2012 at 9:38 AM, Roy Sigurd Karlsbakk
r...@karlsbakk.net
On Mon, Jul 30, 2012 at 7:11 AM, GREGG WONDERLY gregg...@gmail.com wrote:
I thought I understood that copies would not be on the same disk, I guess I
need to go read up on this again.
ZFS attempts to put copies on separate devices, but there's no guarantee.
-B
--
Brandon High :
The copies thing is a really only for laptops, where the likelihood of
redundancy is very low (there are some high-end laptops with multiple
drives, but those are relatively rare) and where this idea is better
than nothing. It's also nice that copies can be set on a per-dataset
manner (whereas
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