[CentOS] 8-15 TB storage: any recommendations?

JohnS jses27 at gmail.com
Sat Jan 9 00:30:59 UTC 2010


On Fri, 2010-01-08 at 16:08 -0800, nate wrote:
> JohnS wrote:
> 
> > Currently using the older model of this one [1] @ 4GB/s on the fiber.
> 
> You sound pretty confused, there's no way in hell a Fujitsu DX440
> is going to sustain 4 gigabytes/second, maybe 4 Gigabits/second
> (~500MB/s)
> 
G Bits per second
> 
> > Thats with BiDirectional, both links at 4 GB/s.  Were looking for
> > something to scale to 24 if not 30.  It is in constant time wait also of
> > about .30.  It has what I call an ROI (return on investment) of 5 mins
> > and longer, witch needs to be cut down greatly, 30 secs to a min.  The
> > application supports 128 CPUs of which it's a PACS Appication that runs
> > in almost real time.
> 
> Your ROI of 5 minutes doesn't make any sense to me.

Ok, Job submission and completion is what I am getting at.

> > The bad thing just throwing money at storage is not going to work, we
> > have to have a 30 - 90 day POC, period in house.
> 
> The only way you'll get that is if you can clearly define your
> requirements and commit to buying a system if it meets those
> requirements. If you find out at the last minute that the requirements
> you came up with were wrong your SOL, so be careful.
> 
> There are plenty of arrays on the market that can go 6-8x faster
> than the DX440, none of them will come close to even 10GBytes/second
> though.
> 
> While an IOPS benchmark not a throughput benchmark it still has some
> value, you can look at the performance of a decked out DX440 here:
> http://www.storageperformance.org/results/a00010_Fujitsu_SPC1_executive_summary_a.pdf
> 
> And compare it to other systems on the site. My own 3PAR T400 is
> rated to be about 6.5 times faster than the DX440 at least on the
> SPC-1 test, when fully loaded with 640 15k RPM drives(I use SATA
> drives exclusively).
> 
> nate
> 
> 
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