But replace those enterprise drives in the raid with SSD drives in a
raid and what happens?
I just read some reviews on the Samsung 840 Pro series in a raid
configuration and it is rather impressive.
http://www.rwlabs.com/article.php?id=762
On 4/2/2013 1:53 PM, Lisa Kachold wrote:
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.
On Tue, Apr 2, 2013 at 1:37 PM, Eric Cope <[email protected]
<mailto:[email protected]>> wrote:
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.
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.
The High Performace MySQL blog posts data on SSD performance. Its
a good reference point.
Eric
On Tue, Apr 2, 2013 at 1:24 PM, Lisa Kachold
<[email protected] <mailto:[email protected]>> wrote:
I have also found that in deference to their claims some of
the SSDs are SLOWER than regular enterprise drives.
I believe this new technology leaves a lot to be desired.
On Tue, Apr 2, 2013 at 12:27 PM, Derek Trotter
<[email protected] <mailto:[email protected]>>
wrote:
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.
Derek
--
"I get my copy of the daily paper, look at the obituaries
page, and if I'm not there, I carry on as usual."
Patrick Moore
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