I expect you can without any problems. I don't know what your specific set-up is, but we have run several non "Apple" drives in the XServes with no problems. Simply unscrew the SATA drive from the ADM, disconnect the cable, reconnect the new drive, do up the screws, slot in and away you go. At the end of the day it's just a SATA drive in a fancy caddy.
we were successful in upgrading our xserve to 3 x 2 TB (Raid 5). Our local apple dealer had recommended a hard drive from Western Digital (WDC WD2003FYYS-02W081).
But I'd like to remark that you must set a jumper so that the hard drive can reduce the data transfer rate to 1,5 GB/s.
I just upgraded my Xserve (Early 2009) with two of these WD2003FYYS RE4 2TB hard disks, replacing two WD 1TB hard disks. The drives could not be used unless I formatted them with my old Xserve G5 connected in FW mode, as disk utility was unable to recognize them.
After formatting and putting the drives back into my Xserve (Early 2009) everything worked fine. But now the fans are running much MUCH faster, making MUCH more noise, even when the CPU is idle. to be honest, this is unusable in this way! Removing ONE drive (drive bay one), the one with the system on it, and leaving the second 2 TB drive in place, the fans run smoothely (at about 5 to 6000 rpm). With the second 2 TB drive set into drive bay one, the fan rise up to 9000 rpm!!
I cannot find a way to solve this but removing the 2 TB drive from bay one.
The new 2 TB drive need less power than the older 1 TB drive! So that is not what I first thought was the problem.
I resetted the SMC multiple times, that is also not the problem. Just removing the drive calms the fans down!
Who can help me on this topic?
Thanks and best regards!
Ok replying to my own post, maybe it helps somebody :-)
It is fine just to NOT put a 2 TB drive into bay one, placing the two 2 TB drives into bay two and three keeps the fans down. That is fine to me, as I can still boot from the 2 TB drive, and the system does not care if it is situated in the left bay or not.
Thats fine. For everybody trying to run the Xserve (Early 2009) with THREE 2 TB drives of Western Digital I cannot give a hint how to achieve this without high blowing fans.
For me, this works, with a total of 5 TB.