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April 30th, 2014 06:00
Dell Workstations and TRIM support with a SSD RAID0 array
Hi everyone,
I work in a microscopy laboratory and use Dell workstations to control all the hardware in our setups. We have a camera that's capable of sending up to 1 GB/s to the computer, and as a result of this high speed, record the images to RAM during acquisition and write them later to a hard disk. However, this limits the total size of the data we capture in an acquisition to the amount of RAM in the system (48 GB).
I'm considering buying a new workstation (T3610 or T7600) and using it with two or four solid state drives in a RAID0 array to increase the amount of data we collect in a single experiment while still maintaining high write speeds. However, I know that until very recently many Intel chipsets did not support TRIM functionality in RAID arrays of solid state drives. To my knowledge, TRIM is absolutely crucial for maintaining high write speeds and disk longevity.
Does anyone know whether TRIM in SSD RAID arrays is supported on the Dell T3610 or T7600 Precision workstations? The chipsets are listed on the Dell website as C602 and C600 series, respectively.
Thanks!
Kyle
speedstep
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April 30th, 2014 06:00
You shouldnt use Raid 0 with SSD's You will write the drives to death. RAID0? Waste of extra drive for no noticeable difference in performance (especially with SSDs), higher fail rate, and more effort to backup.
http://www.lhcomp.com/vendors/tms/TMS-RamSan500-DataSheet.pdf
kmdouglass
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April 30th, 2014 07:00
Thanks for the response, but it doesn't answer my question.
Maybe I wasn't clear on why I'm attempting this setup:
1. Data is not stored on these drives permanently. The data would be written directly to them from the camera. The data would be moved immediately to a "normal" server for archiving after acquisition. No backups are necessary.
2. RAID0 would increase the size of the effective drive space, allowing me to continuously acquire images for longer times. I don't need data redundancy; I need purely space.
Why would RAID0 write the drives to death?
Thanks,
Kyle