We have some vpath disks running under AIX 5.1 (!). We had some errors on an adapter, but a psuedo replace seemed to sort it. Following a reboot, I can see all the disks, but some are reporting IO errors whatever I try to do anything with them eg 'dd'. The odd thing is that the disks are showing a PVID, which suggests to me that the system is able to read the disks at system start, but any other activity results in IO fails. Any ideas?
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vpath disks
- Thread starter andy61
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What are the I/O errors?
Maybe the sense data will give a better idea of the problem.
This book gives a good overview and details of decoding the error sense data:
Maybe the sense data will give a better idea of the problem.
This book gives a good overview and details of decoding the error sense data:
- Thread starter
- #3
Thanks for this - it looks a useful document. The problem is now sorted. It looks like there were Persistent Reserves on the disks following the adapter error. These survived a reboot, but IBM were able to log into the disk array and free up the disks.Once they'd done that, I needed rmdev -dl the drives and re-probe.
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