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Re: xserve and xraid fiber channel problem



I had this same problem as well with a QLogic switch. Swaping the card with a new one resolved the problem instantly. I made some posts on the Apple boards as well about this issue.

Jeremy Bush
Image Management LLC
http://www.imagemanagement.ws

Shawn Welter wrote:
Hello,

We have 3 xserves running osx server 10.3.9 connecting through a Qlogic sanbox fiber switch to Five (5) xraid controllers. We us lun masking control which server sees which xraid. We have been having a problem with two of the xserves now. AFP craches due to the a Volume off one of the xraids is unmounting. We get the below in syslog at the time it occurs:

Nov 5 00:17:56 dragon kernel: FusionMPT: Notification = 5 (External Bus Reset) for SCSI Domain = 0
Nov 5 00:17:56 dragon kernel: FusionMPT: External Bus Reset for SCSI Domain = 0
Nov 5 00:17:56 dragon kernel: FusionMPT: Notification = 7 (Link Status Change) for SCSI Domain = 0
Nov 5 00:17:56 dragon kernel: FusionFC: Link is down for SCSI Domain = 0.
Nov 5 00:18:04 dragon kernel: FusionMPT: FindTaskForControllerIdentifier() failed, targetID = 3, context = 0x


There is not link down notices on the xraid. So I was thinking that it is either the switch, cable, card or xserve.


On one of the servers a couple weeks back when we were having the problem I swapped cables with no effect. I then swapped fiber card and it seemed to help. But now one of the other xserves is doing it. Could I have two fiber cards go bad in a month?



Shawn


------- Shawn Welter mailto:email@hidden Information Systems Technician Dark Horse Comics, Inc. Ph: 503-652-8815 x347 http://www.darkhorse.com/

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References: 
 >xserve and xraid fiber channel problem (From: Shawn Welter <email@hidden>)



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