RAID 1 (2 drives) vs RAID 5 (3 drives)
Posted 27 March 2012 - 01:39 PM
Posted 27 March 2012 - 01:46 PM
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Posted 27 March 2012 - 03:09 PM
raid 0 for good read write speeds
raid 5 good read speeds but has poor write speeds
Edited by Bigball1, 28 March 2012 - 11:06 AM.
Posted 27 March 2012 - 04:30 PM
raid-1- 1 drive can fail, hence redundant
raid-0 - either drive goes bad and you lose all the data, none recoverable
raid-5 - speed of raid-0 BUT if more than 1 drive goes bad at a time you lose everything
if you limited to only 3 drives i would go with raid-5 for the speed and simi redundancy,
if you can get more (like 4 or more) go with raid-6 (basically raid-0 with redundancy)
otherwise, like i said at the start, if you don't need speed and want to save money, just get 2 drives and go with raid-1.
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Posted 28 March 2012 - 07:26 AM
I'm not sure if RAID 5 actually has improved write speeds. I currently have a RAID 5 array, but seem to get slow write speeds compared to a single drive I have in my system. I was just trying to get some opinions from other system builders. Thanks for all the help you have given me over the past couple of months.
Posted 28 March 2012 - 07:57 AM
Posted 28 March 2012 - 08:58 AM
And dont do raid 6... its not like raid 0 with redundancy... its raid 5 except with two parody drives instead of only one... Its even slower than raid 5 is!
Really the easiest way to decide is, even number of drives(2 or 4) go with RAID1 or 1+0(AKA 10), odd number of drives(3 or 5) go with raid-5.
This isn't knew information, im mostly just repeating what everyone else has already said, but another opinion never hurts!
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Posted 28 March 2012 - 09:10 AM