> http://wdc.custhelp.com/app/answers/detail/a_id/1397/~/difference-between-desktop-edition-and-raid-%28enterprise%29-edition-drives
"When an error is found on a desktop edition hard drive, the drive will enter
into a deep recovery cycle to attempt to repair the error, recover the data
from the
On 07 September, 2011 - Roy Sigurd Karlsbakk sent me these 2,0K bytes:
> > http://wdc.custhelp.com/app/answers/detail/a_id/1397/~/difference-between-desktop-edition-and-raid-%28enterprise%29-edition-drives
>
> "When an error is found on a desktop edition hard drive, the drive will enter
> into a
> The common use for desktop drives is having a single disk without
> redundancy.. If a sector is feeling bad, it's better if it tries a bit
> harder to recover it than just say "blah, there was a bit of dirt in
> the corner.. I don't feel like looking at it, so I'll just say your data
> is screwed
Hi all
Reading the docs for the Hitachi drives, it seems CCTL (aka TLER) is settable
for Deskstar drives. See page 97 in http://goo.gl/ER0WD
Does anyone know if this is possible from OI/Solaris, or if this needs to be
done on driver level?
Vennlige hilsener / Best regards
roy
--
Roy Sigurd Ka
> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss-
> boun...@opensolaris.org] On Behalf Of Richard Elling
>
> For example, does 'zfs send -D' use the same DDT as the pool?
>
> No.
>
>
> Or does it require more memory for it's own DDT, thus impacting
> performance of both?
>
> Yes
On 09/ 6/11 11:45 PM, Daniel Carosone wrote:
On Tue, Sep 06, 2011 at 10:05:54PM -0700, Richard Elling wrote:
On Sep 6, 2011, at 9:01 PM, Freddie Cash wrote:
For example, does 'zfs send -D' use the same DDT as the pool?
No.
My understanding was that 'zfs send -D' would use the pool's DDT in
b
Thanks for the replies everyone. That was along the lines of what I was
thinking (-D is a "win" for network usage savings, if it works) but wanted
to double-check before I started playing with out new boxes.
Will be interesting to see whether or not -D works with ZFSv28 in FreeBSD
8-STABLE/9-BETA
On Wed, Sep 07, 2011 at 08:47:36AM -0600, Lori Alt wrote:
> On 09/ 6/11 11:45 PM, Daniel Carosone wrote:
>> My understanding was that 'zfs send -D' would use the pool's DDT in
>> building its own, if present.
> It does not use the pool's DDT, but it does use the SHA-256 checksums
> that have alre
On 09/ 7/11 02:20 PM, Daniel Carosone wrote:
On Wed, Sep 07, 2011 at 08:47:36AM -0600, Lori Alt wrote:
On 09/ 6/11 11:45 PM, Daniel Carosone wrote:
My understanding was that 'zfs send -D' would use the pool's DDT in
building its own, if present.
It does not use the pool's DDT, but it does use
On Wed, Sep 7, 2011 at 2:20 AM, Roy Sigurd Karlsbakk wrote:
> Does anyone know if this is possible from OI/Solaris, or if this needs to be
> done on driver level?
You should be able to do it via smartctl. The setting does not persist
through power cycles, so you'll want to add it to a startup sc
On Wed, Sep 07, 2011 at 11:20:06AM +0200, Roy Sigurd Karlsbakk wrote:
> Hi all
>
> Reading the docs for the Hitachi drives, it seems CCTL (aka TLER) is settable
> for Deskstar drives. See page 97 in http://goo.gl/ER0WD
Looks like another positive for these drives over the "competition".
The same
> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss-
> boun...@opensolaris.org] On Behalf Of Freddie Cash
>
> Will be interesting to see whether or not -D works with ZFSv28 in FreeBSD 8-
> STABLE/9-BETA. And whether or not "zfs send" is faster/better/easier/more
> reliable than rsynci
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