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The "tipping points" I would look at is the fact that SSD's, for
around the same price and capacity as enterprise level drives
(would be debatable in higher capacity areas where enterprise
drives rule):<br>
<br>
1. Put out less heat. (Usually 1/2 a spinner)<br>
2. Have no shock weakness (you can shake them while they're
performing data operations if you would like)<br>
3. Use less power. (Usually 1/2 a spinner)<br>
4. Produce no noise. (Yep, for that quiet web server in your
living room!)<br>
<br>
For an always on server, two of those have value. For placement of
the server, the noise definitely holds a value if you share the
room.<br>
<br>
I would still suggest you use spinners for data storage (spinning
backup and file stores, even place /home on) but use SSD for the
read performance (website, O/S...basically /, /tmp, and /var)<br>
<br>
Basically, setups I always see are:<br>
<br>
RAID 1 for O/S, web, and database using 2 x SSD's <br>
RAID 1 on 2 x non-enterprise spinners for storage. (Backups of the
database, home directories, etc)<br>
<br>
<br>
On 04/02/2013 02:55 PM, Lisa Kachold wrote:<br>
</div>
<blockquote
cite="mid:CAEYqmRsy71xqC7NbZv+aAB8LeP-msshWTf13dn=y0NBfrSEJcg@mail.gmail.com"
type="cite">
<div dir="ltr">Sure Paul! Why not. Under linux a SSD drive is as
fast as a hardware controlled RAID array.
<div><br>
</div>
<div style="">For every endeavor your data storage is finite;
drives will wear out at some point!</div>
</div>
<div class="gmail_extra"><br>
<br>
<div class="gmail_quote">On Tue, Apr 2, 2013 at 2:21 PM, keith
smith <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:klsmith2020@yahoo.com" target="_blank">klsmith2020@yahoo.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
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I'm almost sold. Are you saying it is ok, or even
recommended to build a web server with SSD's only?<br>
<br>
<br>
<br>
------------------------<br>
Keith Smith<br>
<br>
--- On <b>Tue, 4/2/13, Paul Mooring <i><<a
moz-do-not-send="true"
href="mailto:paul@opscode.com" target="_blank">paul@opscode.com</a>></i></b>
wrote:<br>
<blockquote style="border-left:2px solid
rgb(16,16,255);margin-left:5px;padding-left:5px">
<br>
From: Paul Mooring <<a moz-do-not-send="true"
href="mailto:paul@opscode.com" target="_blank">paul@opscode.com</a>><br>
Subject: Re: SSDs
<div class="im"><br>
To: "Main PLUG discussion list" <<a
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href="mailto:plug-discuss@lists.phxlinux.org"
target="_blank">plug-discuss@lists.phxlinux.org</a>><br>
</div>
Date: Tuesday, April 2, 2013, 2:08 PM
<div>
<div class="h5"><br>
<br>
<div>
<div>
<div>
<div>
<div><a moz-do-not-send="true"
rel="nofollow"
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<div>
<div>
<div>-- </div>
<div>
<div
style="font-family:Consolas;font-size:medium">Paul
Mooring</div>
<div
style="font-family:Consolas;font-size:medium">Systems
Engineer and Customer Advocate</div>
<div
style="font-family:Consolas;font-size:medium"><br>
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<div
style="font-family:Consolas;font-size:medium"><a
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href="http://www.opscode.com"
target="_blank">www.opscode.com</a></div>
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</div>
<span>
<div style="border-right:medium
none;padding-right:0in;padding-left:0in;padding-top:3pt;text-align:left;font-size:11pt;border-bottom:medium
none;font-family:Calibri;border-top:#b5c4df
1pt
solid;padding-bottom:0in;border-left:medium
none">
<span style="font-weight:bold">From: </span>Lisa
Kachold <<a moz-do-not-send="true"
rel="nofollow"
href="http://mc/compose?to=lisakachold@obnosis.com"
target="_blank">lisakachold@obnosis.com</a>><br>
<span style="font-weight:bold">Reply-To:
</span>Main PLUG discussion list <<a
moz-do-not-send="true"
rel="nofollow"
href="http://mc/compose?to=plug-discuss@lists.phxlinux.org"
target="_blank">plug-discuss@lists.phxlinux.org</a>><br>
<span style="font-weight:bold">Date: </span>Tuesday,
April 2, 2013 1:24 PM<br>
<span style="font-weight:bold">To: </span>Main
PLUG discussion list <<a
moz-do-not-send="true"
rel="nofollow"
href="http://mc/compose?to=plug-discuss@lists.phxlinux.org"
target="_blank">plug-discuss@lists.phxlinux.org</a>><br>
<span style="font-weight:bold">Subject:
</span>Re: SSDs<br>
</div>
<div><br>
</div>
<div>
<div>
<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><br>
<br>
<div>On Tue, Apr 2, 2013 at 12:27
PM, Derek Trotter <span
dir="ltr">
<<a moz-do-not-send="true"
rel="nofollow"
href="http://mc/compose?to=expat.arizonan@gmail.com"
target="_blank">expat.arizonan@gmail.com</a>></span>
wrote:<br>
<blockquote 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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