RE: SSD Performance Question - How Much Faster that Spinning SAS

During a non-disclosed presentation early this year IBM was discussing SSD,
most of which they have already announced so that is what I can discuss
here. They had some benchmark results that were extremely impressive on how
quick SSD was compared to HDD. There is no latency, spin delay, or moving
parts. They are not for everyone, as they are expensive. But for the
people who really need that type of performance, the cost isn't that great.
They actually give you twice the space under the covers than you purchase,
and the SSD will write on that to keep up its reliability.

The i due to its architecture was a natural fit for these, and the cool
thing is that they have just slipped right in. A few PTFs and you have some
nice new added functionality in i5/OS to support, manage, and control these
new SSD. I can say that in a future release which is coming out at an
undisclosed time, you will have even more benefits and manageability for
SSD as it relates to objects on the i. Manageability that will blow your
mind. The guys in Rochester did a great job busting their butts getting
these on the i so quickly, and with the next release of the os, you are
going to see even more usability.

Will SSD in 5 or 10 years replace HDD? Perhaps. The price will certainly
drop, just like any technology. Hard to imagine that now based upon how
they are priced.

Pete

Pete Massiello
iTech Solutions
http://www.itechsol.com


-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Kirk Goins
Sent: Wednesday, July 29, 2009 4:53 PM
To: Midrange Systems Technical Discussion
Subject: Re: SSD Performance Quesiton - How Much Faster that Spinning SAS

Actually... IBM's eConfig tool is showing $60 per month maint per drive...



On Wed, Jul 29, 2009 at 1:26 PM, <rob@xxxxxxxxx> wrote:

Judging by what some of the others said about xSeries - is SSD really all
that bleeding edge?

Is SSD like a big freaking thumb drive? Haven't those been out awhile?

From what I read SSD doesn't have the write count that spinning disks

have. IOW, they will wear out on writes before spinning disks will. They
compensate it by overengineering the write space and opening up some new
when some old ones are expired. Either way, perhaps IBM is prepricing the
replacement costs on the purchase side? After all, it's not like you pay
any more maintenance for SSD than you do for spinning disks.

Rob Berendt
--
Group Dekko Services, LLC
Dept 01.073
Dock 108
6928N 400E
Kendallville, IN 46755
http://www.dekko.com





From:
"Mark S. Waterbury" <mark.s.waterbury@xxxxxxx>
To:
Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>
Date:
07/29/2009 04:16 PM
Subject:
Re: SSD Performance Quesiton - How Much Faster that Spinning SAS
Sent by:
midrange-l-bounces@xxxxxxxxxxxx



Hello, all:

And, is anyone surprised by this? This is brand-new, "bleeding-edge"
technology, for which you must be prepared to pay a premium price, for
now...

Within 18 to 24 months, this technology (and the software to support
it) will be widely available at "market prices" and eventually,
commodity prices.

The fact that i5/OS can take advantage of this "right away" with only a
few PTFs needed, is a very positive event in the life of OS/400 and
i5/OS, and is something that should be celebrated.

It will be interesting to see how long it takes other operating systems
to be capable of do anything really useful with this new technology.

Regards,

Mark S. Waterbury

> rob@xxxxxxxxx wrote:

From IBM:

<snip>
Hi Robert, you only have 1 of 15 PTF's for this support, and not all of
the PTF's have been written yet. Many of the PTF's are not even visible
in Fix Central yet.

If you get a SSD drive, then I can get you the PTF's currently out, and
you will see a diffference in the CHGPF command. Without having a SSD
drive, we are not giving the PTF's out at this time.
</snip>

Rob Berendt

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