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тАО07-11-2006 09:53 PM
тАО07-11-2006 09:53 PM
As per my Knowladge Minimum 3 disks are required for Raid 5 configuration...
Such that we will get 2 disk_size of data & 1 disk_size is lost for striped parity..
HERE I am having 3 disks of size 80gb , 40 gb & 40 gb...
Here How much data size we will get for the FS...
Surya...........
Solved! Go to Solution.
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тАО07-11-2006 10:00 PM
тАО07-11-2006 10:00 PM
Re: Data Size In Raid 5
Check this document for more information : http://www.pcguide.com/ref/hdd/perf/raid/levels/singleLevel5-c.html
-Arun
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тАО07-11-2006 10:08 PM
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тАО07-12-2006 01:39 AM
тАО07-12-2006 01:39 AM
Re: Data Size In Raid 5
But ...
Disk vendors define a gigabyte as one billion bytes, but operating systems normally define it as 2^30 (1,073,741,824) bytes.
So your 40 Gb disks really hold about 37 Gb.
Next, you need to calculate the overhead of your RAID set. A RAID-5 set of N disks leaves N-1 times the space of each disk for storage. So your three disk set has the space of two disks, or 2x37 Gb.
But ...
Remember, too, that filesystems and volume managers have some overhead. Expect to use about 72 Gb on your RAID set.
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тАО07-12-2006 05:26 PM
тАО07-12-2006 05:26 PM