Why is Raid 0 not showing double capacity

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verbalartistic

verbalartistic

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Oct 7, 2013
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I have 2 x SSD running in Raid 0 and they are showing double capacity.... But i just added 2 hdds and raid 0 them also but for some reason they are only showing the size of one of the hdd?

 
Solution
synthaside
Yeah , this is because you are using mixed sized disk's in an array essentially you will be limited to 2 X 500 gig , the array controller will be treating the bigger platter as a 500g disk and ignoring the extra bit . So your capactity will be around a TB of fast usable storage which is what your getting its not really smart to mix different sized disks for support reasons ... although i have done some horrifc step ups before where ive hot swapped disks to larger disks in raid 1 sets to grow storage on running DB clusters in my time.
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synthaside

synthaside

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May 2, 2011
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Yeah , this is because you are using mixed sized disk's in an array essentially you will be limited to 2 X 500 gig , the array controller will be treating the bigger platter as a 500g disk and ignoring the extra bit . So your capactity will be around a TB of fast usable storage which is what your getting its not really smart to mix different sized disks for support reasons ... although i have done some horrifc step ups before where ive hot swapped disks to larger disks in raid 1 sets to grow storage on running DB clusters in my time.
 
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verbalartistic

verbalartistic

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Oct 7, 2013
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:) Thanks mate

 
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