For example, can I add two 70-gig HDDs to an array contaning four 35-gig HDDs?
RAID array question
Started by
Guse
, Jul 12 2005 03:11 PM
#1
Posted 12 July 2005 - 03:11 PM
For example, can I add two 70-gig HDDs to an array contaning four 35-gig HDDs?
#2
Posted 12 July 2005 - 04:38 PM
I believe all the drive have to be of equal size
#3
Posted 12 July 2005 - 08:19 PM
technically, the drives dont need to be the same size. but the smallest drive in the array will be used to set the size of all the other drives involved, so you end up wasting a bunch of HD space.
so in your example, each 70gig drive would only be seen as a 35, essentially wasting 70gigs of space.
if you have the option, it might be better to set up a raid 0+1, using the current 4 drives as the raid 0, and set up with the two 70gig drives as the raid1 to mirror the first array. this would be only if you can safely convert the current raid without any chance of losing your data.
so in your example, each 70gig drive would only be seen as a 35, essentially wasting 70gigs of space.
if you have the option, it might be better to set up a raid 0+1, using the current 4 drives as the raid 0, and set up with the two 70gig drives as the raid1 to mirror the first array. this would be only if you can safely convert the current raid without any chance of losing your data.
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