Disk Representation - what is this c1t1d0s2 represent?

tlee · #1 (**permalink**) 07-07-2008

Hi All,

Can you please advise what the 't' letters stands for?

I understand the letter for the following "c1t1d0s2":

c = disk Controller
t = ?
d = disk number ID.
s = slice or partition of the disk

Thanks

Perderabo · #2 (**permalink**) 07-07-2008

t = target
The target range from 0 to 15 and each device in a scsi chain has a target number, including the host. With most simple disk drives, that d number will always be a zero since there is only one disk. But if the target is a raid there can be many disks. Some raids can use multiple targets and appear to the host as many devices. Also a target could just be a tape drive.

tlee · #3 (**permalink**) 07-07-2008

Thank You!

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