ryan80
asked on
Fibre Channel disk
I have a Server 2008 box that has a secondary drive that is a Fibre channel share from a SAN. I have been having issue on it where the disk disappears from the box. A reboot will correct the issue, but I am trying to figure out why it is happening. I have not worked with Fibre Channel before.
basically I see that there are 2 fibre channel adapters in the server and that the MS MPIO service is used for mounting the drive.
What should be the next step in troubleshooting this?
basically I see that there are 2 fibre channel adapters in the server and that the MS MPIO service is used for mounting the drive.
What should be the next step in troubleshooting this?
What type of Array is this server connected to? Is it fabric attached or fabric switched?
ASKER
The server is attached to a brocade switch and then to the SAN. Let me know if this answers your question. I have never worked with Fibre Channel before, although I have worked with IP storage before.
I looked through the event logs and found that I am getting alerts that
Event ID:7
source:ds4dsm
0:0 path failed
Then
Event ID:774
source:ds4dsm
device path information for 0:0:1 has been removed per MPIO notification
Event ID: 18
source: MPIO
A single path fail-over is being attempted on \device\mpiodisk0
I looked through the event logs and found that I am getting alerts that
Event ID:7
source:ds4dsm
0:0 path failed
Then
Event ID:774
source:ds4dsm
device path information for 0:0:1 has been removed per MPIO notification
Event ID: 18
source: MPIO
A single path fail-over is being attempted on \device\mpiodisk0
So path failover is initiated presumably due to a failed cable or something like that and the other path doesn't get picked up? I'd get the latest DSM from IBM if you haven't already got it (I assume it's a DS3xxx), it's installed when you install IBM DS storage manager.
Presumably it's connected to two Brocade switches, not one; would be a bit silly having redundant HBAs, redundant controller in the DS but only one switch.
Presumably it's connected to two Brocade switches, not one; would be a bit silly having redundant HBAs, redundant controller in the DS but only one switch.
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ASKER
I will check on the cables and look at the switch. Once I have some more information on it I will respond back. Probably later today or tomorrow.
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Thanks,
Turns out that there was an old version of the HBA drivers that was causing the issues. After updating the drivers we have not had any issues.
Thanks for the help and education.
Turns out that there was an old version of the HBA drivers that was causing the issues. After updating the drivers we have not had any issues.
Thanks for the help and education.