Re: SSD-RAID for new wide-field microscopy system

Posted by Zdenek Svindrych-2 on
URL: http://confocal-microscopy-list.275.s1.nabble.com/SSD-RAID-for-new-wide-field-microscopy-system-tp7589536p7589542.html

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Hi Mike,
where did you get the numbers? Regular SSDs I've seen are around 500 MB/s,
both read and write. And SATA III speed is around 600 MB/s!
That's not quite enough even for a single 10-tap CameraLink camera (800
MB/s).
SSD RAID may seem an overkill, but you don't want to sacrifice speed just
because of poor PS specs... Of course RAID 0 array of regular hard drives
should work too, but the probability of data loss (due to failure of one of
the disks) rises with number of disks.
Best, zdenek

On Thu, May 23, 2019 at 10:14 AM Michael Giacomelli <
[hidden email]> 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.
> *****
>
> How fast are you acquiring data?
>
> Entry level SSDs are about $120/TB (~1GB/s write) while high
> performance SSDs are $250/TB (~2.5 GB/s write).  Since SSDs are very
> inexpensive, that $6000 is probably getting you more than just a
> couple hundred dollars worth of disks?
>
> Mike
>
> On Thu, May 23, 2019 at 9:49 AM Mirco Martino <[hidden email]> wrote:
> >
> > *****
> > To join, leave or search the confocal microscopy listserv, go to:
> >
> https://urldefense.proofpoint.com/v2/url?u=http-3A__lists.umn.edu_cgi-2Dbin_wa-3FA0-3Dconfocalmicroscopy&d=DwIFaQ&c=kbmfwr1Yojg42sGEpaQh5ofMHBeTl9EI2eaqQZhHbOU&r=0LyF_z8oU1XGGyisIeOIXyIGIM5IYb3NcLjxHjUca5Y&m=wrk9nduuxxvkAtGOYqFJUAMGuGZJXQE7KSXKZ5WXt60&s=nX-3b6XyV2FiCHG_jHCWfrh-myCWr2GfKF7MI_5dSkw&e=
> > Post images on
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> and include the link in your posting.
> > *****
> >
> > Hi all,
> >
> > we are buying a new fluorescent microscope wide-field system. The system
> include a workstation with 64GB DDR4 RAM, 11GB of graphic card, 512 gb of
> memory and SSD-RAID of 2TB. There is an option to increase the SSD-RAID to
> 4TB for  about 6000$ extra. The system will be use for both fixed materiel
> imaging and for live-imaging with time-laps, z-stack, tiling and
> multi-fluorophores experiments. I was wondering if it is worth to invest
> those extra money for this option or not. This will be the first time we
> will have time-laps experiments, so I don't know what to expect as pictures
> size.
> >
> > What do you think?
> >
> > Thanks in advance for your comments and opinions!
>

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Zdenek Svindrych, Ph.D.
Research Associate - Imaging Specialist
Department of Biochemistry and Cell Biology
Geisel School of Medicine at Dartmouth