IEA473I   vvvvvv FENCED FROM STORAGE PATH x - device-number/ssid.p-cc-nn SENSE=sense

Explanation

A device is unavailable through a storage path due to a hardware error. In the message text:
vvvvvv
The volume that failed.
x
The storage path fenced.
device-number
The physical device address.
ssid
The subsystem identifier.
p
The storage path.
cc
The controller address.
nn
The device number.
sense
The 32 characters of sense data reported by the device.
xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx

System action

The subsystem attempts to recover the operation using an alternate path.

Operator response

The system issues this message because of a hardware error. Follow your installation's procedures for reporting this error.

Source

DFSMSdfp

Module

IGGSNS01

Routing code

1,6

Descriptor code

4