PCI Hot Plug User's Guide I/O device edition - for Solaris(TM) Operating System -

5.1.3 DR operation to shared device (SCSI interface) for cluster system

If a shared device of non-multipath configuration is connected with a cluster system,

there is a possibility that the following alert messages are displayed in the node

to which the PCI card is not exchanged while exchanging it with which the shared

device is connected by the PCI Hot Plug function.

scsi: WARNING: /pci@MN,M000/scsi@M,N (xxxx):
Connected command timeout for Target x.x

[Example]
scsi: WARNING: /pci@80,4000/scsi@2,1 (glm2):
Connected command timeout for Target 0.0

Or,

scsi: WARNING: /pci@MN,M000/scsi@M,N (xxxx):
Disconnected command timeout for Target x.x

[Example]
scsi: WARNING: /pci@80,4000/scsi@2,1 (glm2):
Disconnected command timeout for Target 0.0

Or,

scsi: WARNING: /pci@MN,M000/scsi@M,N (xxxx):
Disconnected tagged cmd(s) (x) timeout for Target x.x

[Example]
scsi: WARNING: /pci@80,4000/scsi@2,1 (glm2):
Disconnected tagged cmd(s) (1) timeout for Target 0.0

Or,

scsi: WARNING: /pci@MN,M000/xxxx@M,N/xxxx@M,N (xxxx):
SCSI transport failed: reason 'reset': xxxx

[Example]
scsi: WARNING: /pci@80,4000/scsi@2,1/sd@3,0 (sd20):
SCSI transport failed: reason 'reset': retrying command

When these warning message is displayed, the access to the shared device is temporarily

interrupted. But the access is retried and restored automatically by the system.

However, there is a possibility that the access is not restored according to some

conditions. Please stop the access to the shared device connected with the PCI card

during its exchange.