[SAC] New Server Feedback or Vote

[Alex Mandel]

You are correct, often times the difference is the Firmware not the
hardware.

The Raid 50 was about safety without compromising performance and faster
rebuilds. Price wise the 6x240 is still cheaper than 3x480 (in general,
though in this case only by ~$250). http://amzn.com/B006VCP9PM  is
likely what I would buy if we bought 3rd party or something similar and
the price spikes above 300GB still (not linear). Though from Silicon
Mechanics the price jumps do appear linear.

More background reading "Consumer-grade SSDs actually last a hell of a
long time" http://ars.to/T4dLhF

3rd party does make things more annoying for warranty service. Under
this plan we just call Silicon Mechanics and they handle replacing it.

Convenience is important since we don't have physical access ourselves
and want to make hosting this as little work as possible for OSUOSL.

Your plan does make sense if we think about replacing both osgeo3 and
osgeo4 with only 1 machine. Adding the extra 3 drives next year. Under
that idea I would also suggest bumping to 8 core for 16 total instead of 12.

Thanks,
Alex

On 04/07/2015 12:38 PM, Harrison Grundy wrote:
> Using SSDs, you may not need the performance improvement 50 gives over
> 5. Aside from this, we've found the larger SSDs tend to outperform their
> smaller counterparts.
> 
> We have not seen a notable difference between the "Datacenter" series
> MLC SSDs and their consumer counterparts in production deployments.
> Depending on how the machine is going to be set up, it may make more
> sense to get the drives from a third party.
> 
> Given the price per GB, you may be able to go with 3x480 for roughly the
> same price point, and leave yourself 3 extra bays if you end up needing
> additional space later.
> 
> That being said, it looks good to me. The stuff outlined above is all
> pretty minor or more preference-driven than functional.
> 
> --- Harrison
> 
> On 04/07/15 12:25, Alex Mandel wrote:
>> Here's what I'm thinking we should order to replace osgeo4.
>>
>> http://www.siliconmechanics.com/quotes/287252?confirmation=1751481707
>> I expect the price to be about $5626.97 before shipping costs.
>>
>> Plan:
>> Latest Debian
>> Software RAID 1 Mirror 80GB SSD OS Drives
>> Software RAID 50 2x3 240GB SSD (usable space n-2 with performance of
>> RAID 5) ~ 860 GB usable after formatting
>> 1 Hot spare 240GB drive in the optical drive slot.
>>
>> Please provide feedback. I'd like to try and order by the end of this week.
>>
>> Thanks,
>> Alex
>>
>> PS: We also plan to ship Astrodog's FreeBSD machine to OSUOSL. This
>> machine will provide additional capacity. Not sure where we are in that
>> plan timeline it depended on the JIRA migration.
>> _______________________________________________
>> Sac mailing list
>> Sac at lists.osgeo.org
>> http://lists.osgeo.org/mailman/listinfo/sac
>>
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