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But replace those enterprise drives in the raid with SSD drives in
a raid and what happens?<br>
<br>
I just read some reviews on the Samsung 840 Pro series in a raid
configuration and it is rather impressive.<br>
<br>
<a href="http://www.rwlabs.com/article.php?id=762">http://www.rwlabs.com/article.php?id=762</a><br>
<br>
<br>
<br>
<br>
On 4/2/2013 1:53 PM, Lisa Kachold wrote:<br>
</div>
<blockquote
cite="mid:CAEYqmRtpaY0qj9pgjTsqahjCBVf_c80OO6puUHETeY+9paqhoQ@mail.gmail.com"
type="cite">
<div dir="ltr">For most intents and purposes an Enterprise system
will be using RAID controllers, with acceleration, so a SD card
IS not a benefit. I have a Dell with SD single level drive that
is slower, but it's probably due to Microsoft 7.</div>
<div class="gmail_extra"><br>
<br>
<div class="gmail_quote">On Tue, Apr 2, 2013 at 1:37 PM, Eric
Cope <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:eric.cope@gmail.com" target="_blank">eric.cope@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">There are two major types of SSDs.
Multi-level cells and single-level cells. Multi-level are
cheaper and denser, but fail sooner and are slower. Single
level are more expensive, but should fail less often.
<div>
<br>
</div>
<div>With respect to performance, I'd be more suspicious
of the software (and OS for that matter) controlling the
drives rather than the drives themselves. If the OS is
tuned for HDD, then SSDs may not gain any benefit. </div>
<div><br>
</div>
<div>The High Performace MySQL blog posts data on SSD
performance. Its a good reference point.</div>
<span class="HOEnZb"><font color="#888888">
<div><br>
</div>
<div>Eric</div>
</font></span></div>
<div class="HOEnZb">
<div class="h5">
<div class="gmail_extra"><br>
<br>
<div class="gmail_quote">
On Tue, Apr 2, 2013 at 1:24 PM, Lisa Kachold <span
dir="ltr"><<a moz-do-not-send="true"
href="mailto:lisakachold@obnosis.com"
target="_blank">lisakachold@obnosis.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">I have also found that in deference
to their claims some of the SSDs are SLOWER than
regular enterprise drives.
<div>I believe this new technology leaves a lot
to be desired.</div>
</div>
<div class="gmail_extra">
<br>
<br>
<div class="gmail_quote">
<div>On Tue, Apr 2, 2013 at 12:27 PM, Derek
Trotter <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:expat.arizonan@gmail.com"
target="_blank">expat.arizonan@gmail.com</a>></span>
wrote:<br>
</div>
<div>
<div>
<blockquote class="gmail_quote"
style="margin:0 0 0 .8ex;border-left:1px
#ccc solid;padding-left:1ex">
I have a question about SSDs. I've read
that they like the USB thumb drives can
be written to a certain number of times
before they fail. What is the expected
lifetime of an SSD? They're terribly
expensive if they're only going to last
2 or 3 years.<span><font color="#888888"><br>
<br>
Derek<br>
<br>
-- <br>
"I get my copy of the daily paper,
look at the obituaries page, and if
I’m not there, I carry on as usual."<br>
<br>
Patrick Moore<br>
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