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Xserve upgraded drive won't stay connected

549 Views 6 Replies Latest reply: May 13, 2013 8:05 AM by Nathan DeLacretaz RSS
Nathan DeLacretaz Level 1 Level 1 (0 points)
Currently Being Moderated
May 6, 2013 8:29 AM

I installed a 2TB WD Green hard drive in an ADM caddy/tray and all seemed normal - but after 5-10 min., the drive disappeared/disconnected without warning.  I didn't have trouble with the drive outside the ADM caddy/tray (it formatted and took data fine)... 

 

In some cursory research, I've seen some folks mention "jumper" settings for replacement drives.  Could this be the issue?  Not sure what these settings involve.

MacBook, Mac OS X (10.6.7)
  • matt00 Community Specialists Community Specialists (3,230 points)

    Hi Nathan,

     

     

    I've been researching for more information. I found the following resource which may be helpful.

     

    Xserve, Xserve RAID: Apple Drive Module (ADM) compatibility

    http://support.apple.com/kb/HT1219

     

     

    Thanks,

     

    Matt M.

  • beatle20359 Level 2 Level 2 (280 points)
    Currently Being Moderated
    May 12, 2013 4:38 PM (in response to Nathan DeLacretaz)

    Hi Nathan,

     

    I don't think you can use the green drives effectively in the Xserve. I've had success with some WD Black drives, some Seagates and some Hitachis, all ADM's use enterprise class drives.. One thing to try would be the following.. Get a large amount of data that is going to take over 10 minutes to copy and see if the drive stays mounted for the duartion of the copy and then for a few minutes later. You'll probably find the issue is with the green drives spinning down when not in use.

     

    Thanks

    Beatle

  • beatle20359 Level 2 Level 2 (280 points)
    Currently Being Moderated
    May 12, 2013 5:25 PM (in response to Nathan DeLacretaz)

    Hi Nathan,

     

    the green drives would be fine to use in something like a drobo which also allows you to mix and match sizes of drives (Drobo Pro has to use enterrprise class disks) or you could use them in an ioSafe N2 which is a pretty cool fireproof/waterproof 2 disk NAS, if you need the extra protection it brings. If you search through the forum you'll find some posts with details of models of drives that work perfectly, some need a jumper to change the transfer rate down etc. SATA 3 drives wont work and neither will anything above 2TB. Problem with the green drives is the RPM's fluctuate between 5900 - 7200 so they're not suited to a server or proper RAID.

     

    All the best

    Beatle

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