What types of SSDs to use.....

[Johan Kooijman]

I'd go with Intel's. We've been using SSD's from Intel for years now, both
in ZFS and non-ZFS configurations and had no issues whatsoever.
We also tried the route of trying cheaper ones, including the 840 Pro's,
just to save money. Turned out that under really heavy workload (ZIL or
massive databases) you really want Intel's, unless you like being in the
datacenter to replace SSD's on a regular basis.

My experience is based on Intel 320, 510/520,  X25 and for a large part
S3700's. Haven't used any other SSD for the last 18 months other than the
S3700.


On Thu, Feb 20, 2014 at 3:02 PM, Erik Stian Tefre <erik at tefre.com> wrote:

> Hi,
>>
>> I'm looking for advise and suggestions on what SSDs to use for the
>> ZFS-systems I have and/or am building....
>>
>> I know the difference between SLC en MLC , but beyond that I have not
>> the best experience with all the older SSD I have lingering about here.
>>
>> Most of them just "disconnect" after a while.
>> It could be because they have exceeded their wear level and just can not
>> write any more.  But than that has occurred rather fast.
>>
>> So what types SSD are others using for
>>         ZIL
>>         cache
>> what is your experience with them
>>
>>  Intel SSDs are good. I've got some handfuls of x25-e, 320, DC S3500 and
> DC S3700 running in supermicro servers and none of them have ever failed or
> dropped out in any way. The x25-es have been hammered with database loads
> 24/7 since 2009 without any issues.
>
> I use DC S3500 for cache. DC S3700 is probably better for ZIL. (The 3700
> has a higher write endurance HET-MLC, 10x the endurance of the S3500 I
> think and 4x the write IOPS.)
>
> Here's an interesting SSD stress test report by the way:
> http://www.extremetech.com/computing/173887-ssd-stress-
> testing-finds-intel-might-be-the-only-reliable-drive-manufacturer
>
> --
> Erik
>
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-- 
Met vriendelijke groeten / With kind regards,
Johan Kooijman

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