So what are the failure modes to worry about?
I'm not exactly sure what the implications of this nocache option for my
configuration.
Say from a recent example I have an overtemp and first one array shuts down,
then the other one.
I come in after A/C is returned, shutdown and repower
On 10/6/07, Vincent Fox [EMAIL PROTECTED] wrote:
So I went ahead and loaded 10u4 on a pair of V210 units.
I am going to set this nocacheflush option and cross my fingers and see how
it goes.
I have my ZPool mirroring LUNs off 2 different arrays. I have
single-controllers in each 3310.
Battery back-ed cache...
Interestingly enough, I've seen this configuration in production
(V880/SAP on Oracle) running Solaris 8 + Veritas Storage Foundation
(for the RAID-1 part).
Speed is good ... redundancy is good ... price is not (2/3).
Uptime 499 days :)
On 10/9/07, Wee Yeh Tan [EMAIL
provided 3310 cache does not induce silent block corruption when
writing to disks
s.
On 10/5/07, Vincent Fox [EMAIL PROTECTED] wrote:
So I went ahead and loaded 10u4 on a pair of V210 units.
I am going to set this nocacheflush option and cross my fingers and see how
it goes.
I have my
So I went ahead and loaded 10u4 on a pair of V210 units.
I am going to set this nocacheflush option and cross my fingers and see how it
goes.
I have my ZPool mirroring LUNs off 2 different arrays. I have
single-controllers in each 3310. My belief is it's OK for me to do this even
without
Vincent Fox wrote:
Solaris Cluster 3.2 supports Solaris 10 8/07 (aka
u4). Where did you hear that
it didn't?
Took an Advanced Clustering class a few weeks before U4 came out. At that
time I think the instructor said U3 was the supported configuration and
he wasn't sure when U4 would be a
Vincent Fox writes:
I don't understand. How do you
setup one LUN that has all of the NVRAM on the array dedicated to it
I'm pretty familiar with 3510 and 3310. Forgive me for being a bit
thick here, but can you be more specific for the n00b?
Do you mean from firmware side or
On Sep 25, 2007, at 19:57, Bryan Cantrill wrote:
On Tue, Sep 25, 2007 at 04:47:48PM -0700, Vincent Fox wrote:
It seems like ZIL is a separate issue.
It is very much the issue: the seperate log device work was done
exactly
to make better use of this kind of non-volatile memory. To use
Vincent Fox wrote:
It seems like ZIL is a separate issue.
I have read that putting ZIL on a separate device helps, but what about the
cache?
OpenSolaris has some flag to disable it. Solaris 10u3/4 do not. I have
dual-controllers with NVRAM and battery backup, why can't I make use of it?
On Wed, Sep 26, 2007 at 02:10:39PM -0400, Torrey McMahon wrote:
Albert Chin wrote:
On Tue, Sep 25, 2007 at 06:01:00PM -0700, Vincent Fox wrote:
I don't understand. How do you
setup one LUN that has all of the NVRAM on the array dedicated to it
I'm pretty familiar with 3510 and
On Sep 26, 2007, at 14:10, Torrey McMahon wrote:
You probably don't have to create a LUN the size of the NVRAM
either. As
long as its dedicated to one LUN then it should be pretty quick. The
3510 cache, last I checked, doesn't do any per LUN segmentation or
sizing. Its a simple front end
Vincent Fox wrote:
Is this what you're referring to?
http://www.solarisinternals.com/wiki/index.php/ZFS_Evi
l_Tuning_Guide#Cache_Flushes
As I wrote several times in this thread, this kernel variable does not work in
Sol 10u3.
Probably not in u4 although I haven't tried it.
I would like
Vincent Fox wrote:
Vincent Fox wrote:
Is this what you're referring to?
http://www.solarisinternals.com/wiki/index.php/ZFS_Evi
l_Tuning_Guide#Cache_Flushes
As I wrote several times in this thread, this kernel variable does not work
in Sol 10u3.
Probably not in u4 although I haven't
Where is ZFS with regards to the NVRAM cache present on arrays?
I have a pile of 3310 with 512 megs cache, and even some 3510FC with 1-gig
cache. It seems silly that it's going to waste. These are dual-controller
units so I have no worry about loss of cache information.
It looks like
On Tue, Sep 25, 2007 at 10:14:57AM -0700, Vincent Fox wrote:
Where is ZFS with regards to the NVRAM cache present on arrays?
I have a pile of 3310 with 512 megs cache, and even some 3510FC with 1-gig
cache. It seems silly that it's going to waste. These are dual-controller
units so I
On Tue, 2007-09-25 at 10:14 -0700, Vincent Fox wrote:
Where is ZFS with regards to the NVRAM cache present on arrays?
I have a pile of 3310 with 512 megs cache, and even some 3510FC with
1-gig cache. It seems silly that it's going to waste. These are
dual-controller units so I have no
On Tue, Sep 25, 2007 at 06:01:00PM -0700, Vincent Fox wrote:
I don't understand. How do you
setup one LUN that has all of the NVRAM on the array dedicated to it
I'm pretty familiar with 3510 and 3310. Forgive me for being a bit
thick here, but can you be more specific for the n00b?
If
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