Can you do the following and re-post with what you have set for the following?
smitty devices -> SSA disks -> SSA Logical Disks -> Change/Show
Characteristics of an SSA Logical Disk -> select hdiskxx (where xx is the
hdisk where you are defining the volume)
Look at the following fields:
1. queue depth. This should be set to (# of disks in array-1)*3
2. max_coalesce This should be set to (# of disks in array
-1)*65536, converted to hex.
You may have trouble setting these devices - they may report "device is
busy" if you try and change them. If so, re-post and I'll suggest ways to
get around this. We had one customer report numerous errors like this and
after changing these values, the errors went away.
At 03:58 PM 1/15/2003 -0500, you wrote:
Just tried formatting a new storage pool volume on the above system. First
time since upgrading to 5.1.5.x.
Seeing lots of errors: LVDD LVM_IO_FAIL is the message.
Nothing in ERRPT but these errors. Nothing to point to a specific hardware
failure. Physically checked the drives (SSA) and can see any physical
indication of problems.
Tried searching IBMLINK with no success.
Anyone else seen this ?
Dave Canan
TSM Performance
IBM Advanced Technical Support
[EMAIL PROTECTED]
