Journal SSD durability

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Hi,

Just to revisit this one last time . . .

Is the issue only with the SandForce SF-2281 in the Kingston E50? Or are 
all SandForce controllers considered dodgy, including the SF-2582 in the 
Kingston E100 and a few other manufacturer's enterprise SSDs?

Thanks,
Simon.

On 16/05/14 22:30, Carlos M. Perez wrote:
> Unfortunately, the Seagate Pro 600 has been discontinued, http://comms.seagate.com/servlet/servlet.FileDownload?file=00P3000000JHLCCEA5.  The replacement is the 1200 series which are more 2x the price but have a SAS 12gbps interface.  You can still find the 600's out there at around $300/drive.  Still a very good price based on specs and backed by the reviews.
>
> The Kingston E100's have a DWPD rating of 11 at the 100/200GB capacity, and similar specs to the S3700's (400GB), but more expensive per GB & PBW than the intel S3700, so I'd probably stick with the S3700s.
>
> Carlos M. Perez
> CMP Consulting Services
> 305-669-1515
>
>> -----Original Message-----
>> From: ceph-users [mailto:ceph-users-bounces at lists.ceph.com] On Behalf Of
>> Simon Ironside
>> Sent: Friday, May 16, 2014 4:08 PM
>> To: Christian Balzer
>> Cc: ceph-users at lists.ceph.com
>> Subject: Re: Journal SSD durability
>>
>> On 16/05/14 16:34, Christian Balzer wrote:
>>> Thanks for bringing that to my attention.
>>> It looks very good until one gets to the Sandforce controller in the specs.
>>>
>>> As in, if you're OK with occasional massive spikes in latency, go for
>>> it (same for the Intel 530).
>>> If you prefer consistent perfomance, avoid.
>>
>> Cool, that saves me from burning ?100 unnecessarily. Thanks.
>> I've one more suggestion before I just buy an Intel DC S3500 . . .
>>
>> Seagate 600 Pro 100GB
>> 520/300 Sequential Read/Write
>> 80k/20k Random 4k Read/Write IOPS
>> Power Loss Protection
>> 280/650TB endurance (two figures, weird, but both high) 5yr warranty and
>> not a bad price
>>
>> http://www.seagate.com/www-content/product-content/ssd-fam/600-pro-
>> ssd/en-gb/docs/600-pro-ssd-data-sheet-ds1790-3-1310gb.pdf
>>
>> It's not a SandForce controller :) It's a LAMD LM87800.
>>
>> Cheers,
>> Simon.
>> _______________________________________________
>> ceph-users mailing list
>> ceph-users at lists.ceph.com
>> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com


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