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Hi George,
yes, we had the same problem with the OCZ. The RevoDrive 350 has a cooling added, so it will not burn out as often as it would happen with the older RevoDrive models (3 X2, etc.). However, the main problem that I do not see any improvement in file Open/Save SSD versus 7200 rpm HDD when the file size exceeds 12 GB. Having 3-4 drives RAID 0 may improve it 2-3 fold. However, I have never compared, let say, 2-3 Raid Edition drives (Western Digital) versus TRIM enabled RAID 0 array of SSDs on a x8 PCIe card. Same applies to the Intel's DC P3700. However, $2,600.- for a 800 GB P3700 is too much and I have some doubts that it will outperform three Western Digital RE4 drives in RAID 0. I agree that I have to spend extra for a good x8 RAID controller (again in the range of ca. $1-2K). Thus, I am asking if someone has tested performance of PCIe x8 RAID 0 SSDs, NVMe SSDs in comparison to three Raid Edition HDD in RAID 0 configuration with a good RAID controller.
I hope to hear some feedback, as both Bitplane and Amira (that was "negligently swallowed" by FEI) have no funds and/or brains to test and suggest an optimal configuration for handling large data sets (20 GB- 2 TB). It is a bit strange that Light Sheet Microscopy people stay silent on the issue. Now both 3i and Zeiss have the Betzig's patent on Lattice Light Sheet. I understand that they (especially Zeiss) "pretend as if they know something BIG".
Best regards,
Vitaly
On Tuesday, February 24, 2015 11:34 PM, George McNamara <[log in to unmask]> wrote:
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Hi Vitaly,
all the OCZ RevoDrives, and many of the other OCZ SSD's (Vertex, if I
recall correctly, but maybe multiple SSD models from OCZ), I bought at
UMiami experienced horrible deaths. Some not long after purchase. These
were mostly in real tower PC's not piece of junk Dell mini-towers (which
were replaced with real tower PCs on their deaths).
Yes, I realize you plan to use it for transient data processing. So
what? Buying junk from bad companies is not worth it.
Consider Intel P3600 or P3700 (or other model) "data center" quality
SSDs, or equivalent from other (non-OCZ) SSD manufacturers.
Also pay attention to the controller. I had a personal Adaptec SCSI RAID
controller have a horrible death years ago - no more Adaptec stuff after
that. 10(plus) years ago at CHLA I had our HP server (now quaint ~80 Gb
SCSI RAID) die a temporary death until HP replaced the dead SCSI
controller and simultaneously another component ... until they double
replaced, one defective component killed replacements of the other
components. After that server was functional we were able to send it off
to the CHLA data center for management - my office was quieter after
that moved out.
Data R.I.P.
best wishes,
George
p.s. I routinely backed up the UMiami imaging core on portable USB
drives (initially 0.5T, later 1T, 2T) ... had a shelf(s) full after 5
years.
On 2/24/2015 9:50 PM, Vitaly Boyko wrote:
> *****
> To join, leave or search the confocal microscopy listserv, go to:
> http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy
> Post images on http://www.imgur.com and include the link in your posting.
> *****
>
> Dear List,
> Have you compared and/or tested performance of OCZ RevoDrive 350, OCZ Z drive 4500 and Intel's SSD P3700 PCIe SSDs when handling 100 GB+ incompressible data sets for transient data processing coupled with 2-3 single, non-raid SSDs for multi-threaded data caching? Any feedback will be greatly appreciated.
> Thank you.
> Vitaly
>
>
>
>
>
>
--
George McNamara, Ph.D.
Single Cells Analyst
L.J.N. Cooper Lab
University of Texas M.D. Anderson Cancer Center
Houston, TX 77054
Tattletales http://works.bepress.com/gmcnamara/42
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