Hello Greg,
I'm curious how much performance benefit you gain from the ZIL accelerator.
Have you measured that? If not, do you have a gut feel about how much it
helped? Also, for what kind of applications does it help?
(I know it helps with synchronous writes. I'm looking for real world
A related question: If you are on a UPS, is it OK to disable ZIL?
The evil tuning guide says The ZIL is an essential part of ZFS and should
never be disabled. However, if you have a UPS, what can go wrong that
really requires ZIL?
Opinions?
Monish
- Original Message -
From: Ross
Hello Richard,
Monish Shah wrote:
What about when the compression is performed in dedicated hardware?
Shouldn't compression be on by default in that case? How do I put in an
RFE for that?
Is there a bugs.intel.com? :-)
I may have misled you. I'm not asking for Intel to add hardware
Unless you're in GIMP working on JPEGs, or doing some kind of MPEG
video editing--or ripping audio (MP3 / AAC / FLAC) stuff. All of
which are probably some of the largest files in most people's
homedirs nowadays.
indeed. I think only programmers will see any substantial benefit
from
Hello,
I would like to add one more point to this.
Everyone seems to agree that compression is useful for reducing load on the
disks and the disagreement is about the impact on CPU utilization, right?
What about when the compression is performed in dedicated hardware?
Shouldn't compression
be appreciated.
Monish
Monish Shah
CEO, Indra Networks, Inc.
www.indranetworks.com
Use the SAS drives as l2arc for a pool on sata disks. If your l2arc is
the full size of your pool, you won't see reads from the pool (once the
cache is primed).
If you're purchasing all the gear from
Hello everyone,
I'm wondering if the following makes sense:
To configure a system for high IOPS, I want to have a zpool of 15K RPM SAS
drives. For high IOPS, I believe it is best to let ZFS stripe them, instead
of doing a raidz1 across them. Therefore, I would like to mirror the drives
for
Hello David and Michael,
Well I might back up the more important stuff offsite. But in theory
it's all replaceable. Just would be a pain.
And what is the cost of the time to replace it versus the price of a hard
disk? Time ~ money.
This is true, but there is one counterpoint. If you do
with this? There are probably various gotchas
here that I haven't thought of. If you can think of any, please let me
know.
Thanks,
Monish
Monish Shah
CEO, Indra Networks, Inc.
www.indranetworks.com
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Hello Darren,
Monish Shah wrote:
Hello everyone,
My understanding is that the ZFS crypto framework will not release until
2010.
That is incorrect information, where did you get that from ?
It was in Mike Shapiro's presentation at the Open Solaris Storage Summit
that took place a couple
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