SSDs

[Eric Cope]

Link - http://www.mysqlperformanceblog.com/search/mysql+ssd/




On Tue, Apr 2, 2013 at 1:37 PM, Eric Cope <eric.cope at 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 at 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 at 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
>>>
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>>>
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