On Fri, Feb 04, 2011 at 03:30:45PM +0100, Pawel Jakub Dawidek wrote:
> On Sat, Jan 29, 2011 at 11:31:59AM -0500, Edward Ned Harvey wrote:
> > What is the status of ZFS support for TRIM?
> [...]
> My initial idea was to implement 100% reliable TRIM, so that I can
> implement secure delete using it,
On Mon, Feb 7 at 20:43, Bob Friesenhahn wrote:
On Sun, 6 Feb 2011, Orvar Korvar wrote:
1) Using SSD without TRIM is acceptable. The only drawback is that without
TRIM, the SSD will write much more, which effects life time. Because when the
SSD has written enough, it will break.
Why do you
On Sun, 6 Feb 2011, Orvar Korvar wrote:
1) Using SSD without TRIM is acceptable. The only drawback is that without
TRIM, the SSD will write much more, which effects life time. Because when the
SSD has written enough, it will break.
Why do you think that the SSD should necessarily write much
On 2/6/2011 3:51 AM, Orvar Korvar wrote:
Ok, so can we say that the conclusion for a home user is:
1) Using SSD without TRIM is acceptable. The only drawback is that without
TRIM, the SSD will write much more, which effects life time. Because when the
SSD has written enough, it will break.
I
On 2/6/2011 3:51 AM, Orvar Korvar wrote:
Ok, so can we say that the conclusion for a home user is:
1) Using SSD without TRIM is acceptable. The only drawback is that without
TRIM, the SSD will write much more, which effects life time. Because when the
SSD has written enough, it will break.
I
> 2) And later, when Solaris gets TRIM support, should I reformat or is
> there no need to reformat? I mean, maybe I must format and reinstall
> to get TRIM all over the disk. Or will TRIM immediately start to do
> it's magic?
Trim works on the device level, so a reformat won't be necessary
Vennl
Ok, so can we say that the conclusion for a home user is:
1) Using SSD without TRIM is acceptable. The only drawback is that without
TRIM, the SSD will write much more, which effects life time. Because when the
SSD has written enough, it will break.
I dont have high demands for my OS disk, so b
> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss-
> boun...@opensolaris.org] On Behalf Of Erik Trimble
>
> Bottom line, it's maybe $50 in parts, plus a $100k VLSI Engineer to do
> the design.
Well, only if there's a high volume. If you're only going to sell 10,000 of
these device
> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss-
> boun...@opensolaris.org] On Behalf Of Orvar Korvar
>
> So, the bottom line is that Solaris 11 Express can not use TRIM and SSD?
Is
> that the conclusion? So, it might not be a good idea to use a SSD?
Even without TRIM, SSD's are s
On 2/5/2011 5:44 AM, Orvar Korvar wrote:
So... Sun's SSD used for ZIL and L2ARC does not use TRIM, so how big a problem
is lack of TRIM in ZFS really? It should not hinder anyone to run without TRIM?
I didnt really understand the answer on this question. Because Sun's SSD does
not use TRIM - a
So... Sun's SSD used for ZIL and L2ARC does not use TRIM, so how big a problem
is lack of TRIM in ZFS really? It should not hinder anyone to run without TRIM?
I didnt really understand the answer on this question. Because Sun's SSD does
not use TRIM - and it is not consider a hinder? A home user
Orvar Korvar wrote:
> Ok, I read a bit more on TRIM. It seems that without TRIM, there will be more
> unnecessary reads and writes on the SSD, the result being that writes can
> take long time.
>
> A) So, how big of a problem is it? Sun has for long sold SSDs (for L2ARC and
> ZIL), and they do
Ok, I read a bit more on TRIM. It seems that without TRIM, there will be more
unnecessary reads and writes on the SSD, the result being that writes can take
long time.
A) So, how big of a problem is it? Sun has for long sold SSDs (for L2ARC and
ZIL), and they dont use TRIM? So, is TRIM not a bi
On 2/4/2011 7:39 AM, Christopher George wrote:
So, the bottom line is that Solaris 11 Express can not use
TRIM and SSD?
Correct.
So, it might not be a good idea to use a SSD?
It is true that a Flash based SSD, will be adversely impacted by
ZFS not supporting TRIM, especially for the ZIL accel
On Fri, February 4, 2011 09:30, Pawel Jakub Dawidek wrote:
> But in most cases we don't need TRIM to be so perfect. My
> current idea is to delay TRIM operation for some number of transaction
> groups. For example if block is freed in txg=5, I'll send TRIM for it
> after txg=15 (if it wasn't reass
> So, the bottom line is that Solaris 11 Express can not use
> TRIM and SSD?
Correct.
> So, it might not be a good idea to use a SSD?
It is true that a Flash based SSD, will be adversely impacted by
ZFS not supporting TRIM, especially for the ZIL accelerator.
But a DRAM based SSD is immune t
On Sat, Jan 29, 2011 at 11:31:59AM -0500, Edward Ned Harvey wrote:
> What is the status of ZFS support for TRIM?
[...]
I've no idea, but because I wanted to add such support for FreeBSD/ZFS
for a while now, I'll share my thoughts.
The problem is where to put those operations. ZFS internally have
u can leave more space unused, that helps.
Bye,
Deano
-Original Message-
From: zfs-discuss-boun...@opensolaris.org
[mailto:zfs-discuss-boun...@opensolaris.org] On Behalf Of Orvar Korvar
Sent: 04 February 2011 13:20
To: zfs-discuss@opensolaris.org
Subject: Re: [zfs-discuss] ZFS and TRIM
So
So, the bottom line is that Solaris 11 Express can not use TRIM and SSD? Is
that the conclusion? So, it might not be a good idea to use a SSD?
--
This message posted from opensolaris.org
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On 01/31/11 01:09 PM, Pasi Kärkkäinen wrote:
On Mon, Jan 31, 2011 at 03:41:52PM +0100, Joerg Schilling wrote:
Brandon High wrote:
On Sat, Jan 29, 2011 at 8:31 AM, Edward Ned Harvey
wrote:
What is the status of ZFS support for TRIM?
I believe it's been supported
Pasi Kärkkäinen wrote:
> On Mon, Jan 31, 2011 at 03:41:52PM +0100, Joerg Schilling wrote:
> > Brandon High wrote:
> >
> > > On Sat, Jan 29, 2011 at 8:31 AM, Edward Ned Harvey
> > > wrote:
> > > > What is the status of ZFS support for TRIM?
> > >
> > > I believe it's been supported for a while
On Mon, Jan 31, 2011 at 03:41:52PM +0100, Joerg Schilling wrote:
> Brandon High wrote:
>
> > On Sat, Jan 29, 2011 at 8:31 AM, Edward Ned Harvey
> > wrote:
> > > What is the status of ZFS support for TRIM?
> >
> > I believe it's been supported for a while now.
> > http://www.c0t0d0s0.org/archives
Brandon High wrote:
> On Sat, Jan 29, 2011 at 8:31 AM, Edward Ned Harvey
> wrote:
> > What is the status of ZFS support for TRIM?
>
> I believe it's been supported for a while now.
> http://www.c0t0d0s0.org/archives/6792-SATA-TRIM-support-in-Opensolaris.html
The command is implemented in the sa
1 18:40
To: Edward Ned Harvey
Cc: zfs-discuss@opensolaris.org
Subject: Re: [zfs-discuss] ZFS and TRIM
On Sat, Jan 29, 2011 at 8:31 AM, Edward Ned Harvey
wrote:
> What is the status of ZFS support for TRIM?
I believe it's been supported for a while now.
http://www.c0t0d0s0.org/archives/6792-SA
On Sat, Jan 29, 2011 at 8:31 AM, Edward Ned Harvey
wrote:
> What is the status of ZFS support for TRIM?
I believe it's been supported for a while now.
http://www.c0t0d0s0.org/archives/6792-SATA-TRIM-support-in-Opensolaris.html
-B
--
Brandon High : bh...@freaks.com
_
Edward Ned Harvey wrote:
From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss-
boun...@opensolaris.org] On Behalf Of Edward Ned Harvey
My google-fu is coming up short on this one... I didn't see that it had
been
discussed in a while ...
BTW, there were a bunch of place
> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss-
> boun...@opensolaris.org] On Behalf Of Edward Ned Harvey
>
> My google-fu is coming up short on this one... I didn't see that it had
been
> discussed in a while ...
BTW, there were a bunch of places where people said "ZFS doesn't
My google-fu is coming up short on this one... I didn't see that it had
been discussed in a while ...
What is the status of ZFS support for TRIM?
For the pool in general...
and...
Specifically for the slog and/or cache???
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