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 <eric.cope@gmail.com
> <mailto:eric.cope@gmail.com>> 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
> <lisakachold@obnosis.com <mailto:lisakachold@obnosis.com>> 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
> <expat.arizonan@gmail.com <mailto:expat.arizonan@gmail.com>>
> 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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