Re: SSD Performance Quesiton - How Much Faster that Spinning SAS

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

--
This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing
list
To post a message email: MIDRANGE-L@xxxxxxxxxxxx
To subscribe, unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo/midrange-l
or email: MIDRANGE-L-request@xxxxxxxxxxxx
Before posting, please take a moment to review the archives
at http://archive.midrange.com/midrange-l.



--
This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing list
To post a message email: MIDRANGE-L@xxxxxxxxxxxx
To subscribe, unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo/midrange-l
or email: MIDRANGE-L-request@xxxxxxxxxxxx
Before posting, please take a moment to review the archives
at http://archive.midrange.com/midrange-l.