--On 24 May 2010 23:41 -0400 rwali...@washdcmail.com wrote:
I haven't seen where anyone has tested this, but the MemoRight SSD (sold
by RocketDisk in the US) seems to claim all the right things:
http://www.rocketdisk.com/vProduct.aspx?ID=1
pdf specs:
On Tue, May 25, 2010 at 10:08:57AM +0100, Karl Pielorz wrote:
--On 24 May 2010 23:41 -0400 rwali...@washdcmail.com wrote:
I haven't seen where anyone has tested this, but the MemoRight SSD (sold
by RocketDisk in the US) seems to claim all the right things:
--On 25 May 2010 15:28 +0300 Pasi Kärkkäinen pa...@iki.fi wrote:
I've tried contacting Intel to find out if it's true their enterprise
SSD has no cache protection on it, and what the effect of turning the
write cache off would have on both performance and write endurance, but
not heard
On Tue, May 25, 2010 at 01:52:47PM +0100, Karl Pielorz wrote:
--On 25 May 2010 15:28 +0300 Pasi Kärkkäinen pa...@iki.fi wrote:
I've tried contacting Intel to find out if it's true their enterprise
SSD has no cache protection on it, and what the effect of turning the
write cache off would
On Tue, May 25, 2010 at 2:08 AM, Karl Pielorz kpielorz_...@tdx.co.uk wrote:
I've tried contacting Intel to find out if it's true their enterprise SSD
has no cache protection on it, and what the effect of turning the write
The E in X25-E does not mean enterprise. It means extreme. Like
the EE
--On 25 May 2010 11:15 -0700 Brandon High bh...@freaks.com wrote:
On Tue, May 25, 2010 at 2:08 AM, Karl Pielorz kpielorz_...@tdx.co.uk
wrote:
I've tried contacting Intel to find out if it's true their enterprise
SSD has no cache protection on it, and what the effect of turning the
write
The
Hi,
I have hit the synchronous NFS writing wall just like many people do.
There also have lots of discussion about the solutions here.
I want to post all of my exploring fighting done recently to discuss and share:
1): using the normal SATA-SSDs(intel/ocz) as ZIL device. For intel just EOLed
On 5/23/2010 11:30 PM, Fred Liu wrote:
Hi,
I have hit the synchronous NFS writing wall just like many people do.
There also have lots of discussion about the solutions here.
I want to post all of my exploring fighting done recently to discuss
and share:
1): using the normal
From: Erik Trimble [mailto:erik.trim...@oracle.com]
Sent: 星期一, 五月 24, 2010 16:28
To: Fred Liu
Cc: ZFS Discussions
Subject: Re: [zfs-discuss] [ZIL device brainstorm] intel x25-M G2 has ram cache?
On 5/23/2010 11:30 PM, Fred Liu wrote:
Hi,
I have hit the synchronous NFS writing wall just like
Erik Trimble wrote:
Frankly, I'm really surprised that there's no solution, given that the
*amount* of NVRAM needed for ZIL (or similar usage) is really quite
small. a dozen GB is more than sufficient, and really, most systems do
fine with just a couple of GB (3-4 or so). Producing a
What you probably want is a motherboard which has a small area of main
memory protected by battery, and a ramdisk driver which knows how to use it.
Then you'd get the 1,000,000 IOPS. No idea if anyone makes such a thing.
You are correct that ZFS gets an enormous benefit from even tiny amounts
brainstorm] intel x25-M G2 has ram cache?
Erik Trimble wrote:
Frankly, I'm really surprised that there's no solution, given that the *amount*
of NVRAM needed for ZIL (or similar usage) is really quite small. a dozen GB is
more than sufficient, and really, most systems do fine with just a couple of GB
-discuss] [ZIL device brainstorm] intel x25-M G2 has ram cache?
What you probably want is a motherboard which has a small area of main
memory protected by battery, and a ramdisk driver which knows how to use it.
Then you'd get the 1,000,000 IOPS. No idea if anyone makes such a thing.
You
On May 24, 2010, at 4:28 AM, Erik Trimble wrote:
yes, both the X25-M (both G1 and G2) plus the X25-E have a DRAM buffer on the
controller, and neither has a supercapacitor (or other battery) to back it
up, so there is the potential for data loss (but /not/ data corruption) in a
power-loss
Subject: Re: [zfs-discuss] [ZIL device brainstorm] intel x25-M G2 has ram cache?
On May 24, 2010, at 4:28 AM, Erik Trimble wrote:
yes, both the X25-M (both G1 and G2) plus the X25-E have a DRAM buffer on the
controller, and neither has a supercapacitor (or other battery) to back it
up, so
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