What types of SSDs to use.....

[krichy at tvnetwork.hu]

And actually taking their lifetime endurance into account, they are not 
more expensive than other consumer drives.

Kojedzinszky Richard
Euronet Magyarorszag Informatika Zrt.

On Thu, 27 Feb 2014, krichy at tvnetwork.hu wrote:

> Date: Thu, 27 Feb 2014 18:23:39 +0100 (CET)
> From: krichy at tvnetwork.hu
> To: Julian Elischer <julian at freebsd.org>
> Cc: Erik Stian Tefre <erik at tefre.com>, fs at freebsd.org
> Subject: Re: What types of SSDs to use.....
> 
>
> We use Intel S3700, +1 for that, larger endurance, has power-loss protection, 
> and IOPS is very nice.
>
>
> Kojedzinszky Richard
> Euronet Magyarorszag Informatika Zrt.
>
> On Sat, 22 Feb 2014, Julian Elischer wrote:
>
>> Date: Sat, 22 Feb 2014 11:26:29 +0800
>> From: Julian Elischer <julian at freebsd.org>
>> To: Erik Stian Tefre <erik at tefre.com>, Willem Jan Withagen 
>> <wjw at digiware.nl>,
>>     fs at freebsd.org
>> Subject: Re: What types of SSDs to use.....
>> 
>> On 2/20/14, 10:02 PM, Erik Stian Tefre 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.
>> 
>> the newest intel drives have enough RAM inhtem to actually index the entire 
>> drive in ram, so the performance is a lot better.
>> Prior to that they had to hold the index on flash, (with a cache).
>> 
>>> 
>>> 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 
>> 
>> doesn't count PCI SSDs..
>> 
>>> 
>>> -- 
>>> Erik
>>> _______________________________________________
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>>> 
>> 
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