[SAC] New Server Feedback or Vote

[Alex Mandel]

For comparison here's the 480GB SSD idea.
http://www.siliconmechanics.com/i57328/8-drive-xeon-1u.php?cp=pGV4AmV2ZF4kAmDkAwHlZQZ5YwDmBQD2ZD%3D%3D&config_id=1733315

(Does not include our 3% non-profit discount)

Thanks,
Alex

On 04/07/2015 12:56 PM, Alex Mandel wrote:
> 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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> 
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