I have put together a computer to handle a motion capture laboratory collection. Due to the vast data collected (6 IR cameras, 1 high-speed camera, 2 force plates, and up to 16 other sensors) I need to employ a RAID 0 set up. I have a 120 GB SSD boot drive and two 1 TB HDD I plan to set in RAID 0. I have an external 2 TB HDD for back up. Since I know RAID 0 is notoriously unstable, I was wondering if there is any advice anyone might have for me moving forward. I plan to do regular backups, but am not certain what software to pursue to handle the task. Is it possible to restore a RAID 0 backup to new HDD's when they eventually fail on me?
Advice needed: Motion Capture RAID 0 Collection Computer
- Thread starter SeanSolo
- Start date
Solution
- Dec 2, 2009
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Raid is not notoriously unstable. Drives fail in all scenarios and raid keeps critical systems up and running thru a drive failure. Even in my home my raids have been running just fine for many years (about 5 now) without a single hickup. There ae hundreds of Terabyte of raids 20' from me here at work which also rarely have problems.
What you need to be prepared for with raid is when you lose the array, which is no different then losing a single drive to most people. You are only as safe as your last backup. End of story. With raid0 if either drive fails then you lose the array whereas most raids can survive 1 or drives failing.
If this data is important then I recommend making a minimum of 2 backups. One should be unpowered when done and preferably not stored on site. This way a power surge or fire wont destroy all of it.
Since you only want raid 0, motherbd raid is good enough. Be sure to get good drives. Putting crap in raid 0 makes an array thats twice as crappy. Ideally look for drives with a high hard error rate/non-recoverable read error rate. Enterprise grade drives are typically 10in 10E16 bits. A read error will drop the drive from the array and you should be able to image what happens to the array in raid0 when that happens.
Ideally you also want drives that support TLER.
Example WD Green drives are 10 in 10e14, WD Red Pro's are 10 in 10e15, WD RE4's are 10 in 10e16
What you need to be prepared for with raid is when you lose the array, which is no different then losing a single drive to most people. You are only as safe as your last backup. End of story. With raid0 if either drive fails then you lose the array whereas most raids can survive 1 or drives failing.
If this data is important then I recommend making a minimum of 2 backups. One should be unpowered when done and preferably not stored on site. This way a power surge or fire wont destroy all of it.
Since you only want raid 0, motherbd raid is good enough. Be sure to get good drives. Putting crap in raid 0 makes an array thats twice as crappy. Ideally look for drives with a high hard error rate/non-recoverable read error rate. Enterprise grade drives are typically 10in 10E16 bits. A read error will drop the drive from the array and you should be able to image what happens to the array in raid0 when that happens.
Ideally you also want drives that support TLER.
Example WD Green drives are 10 in 10e14, WD Red Pro's are 10 in 10e15, WD RE4's are 10 in 10e16
- May 29, 2013
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Have you thought that a single 1TB SSD will still be much faster than your two mechanical drives? You won't have as much space, but you won't have to worry about missing any data. Use those two internal mechanical drives to archive "interesting" things to for later usage. I am betting the you filter a good deal of raw data out early on in the process.
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