Raid 5 limit

[Hermann]

What is the max number of drives you can have on raid 5? I'm using Adaptec's 3200S raid card.

Thanks - Ryan

 

[Wolfsraider]

i may be wrong but wouldn't this be figured by the str's of the drives used and the 64 bit bus throughput of 533 mb?

if the drives str were 50 mb sustained then 10 drives before maxing out the bus

on 32 bit bus then 133 mb max so 2

hope this helps

 

[ChrisIsBored]

Of course that logic only works if he asked the questions

"How many drives can I add til I theoretically fill the bandwidth of my RAID card at the drives PEAK transfer rate using todays latest and greatest SCSI drives?"

back to his question...

Since your RAID card is a dual channel, it can hold up to 15 drives per channel. I've only played around and used single channel RAID cards but your answer is either 15, OR 30 depending on if you can combine two channels into the same array(which I doubt, but again, haven't played with dual-channel RAID cards).

 

[Wolfsraider]

i stand corrected sorry