IBM Midrange System DS4000 Series

464 IBM Midrange System Storage Hardware Guide
Path #1
---------
DirectoryVertex: present Present: Y
PathState: FAILED_NEED_CHECK<------------------------results out of the HW problem
PathId: 77020001 (hostId: 2, channelId: 0, targetId: 1)
Path #2
---------
DirectoryVertex: present Present: Y
PathState: FAILED_NEED_CHECK<------------------------results out of the HW problem
PathId: 77030001 (hostId: 3, channelId: 0, targetId: 1)
Lun Information
---------------
Lun #0 - WWN: 60080e500017b5bc00004be94ac48ff9<------not affected, owning CTRL optimal
----------------
LunObject: present CurrentOwningPath: A
RemoveEligible: N BootOwningPath: A
NotConfigured: N PreferredPath: A
DevState: OPTIMAL ReportedPresent: Y
ReportedMissing: N
NeedsReservationCheck: N
TASBitSet: Y
NotReady: N
Busy: N
Quiescent: N
Controller 'A' Path
--------------------
NumLunObjects: 2 RoundRobinIndex: 0
Path #1: LunPathDevice: present
DevState: OPTIMAL
RemoveState: 0x0 StartState: 0x1 PowerState: 0x0
Path #2: LunPathDevice: present
DevState: OPTIMAL
RemoveState: 0x0 StartState: 0x1 PowerState: 0x0
Controller 'B' Path <------------------------------------------recognise path failure
--------------------
NumLunObjects: 2 RoundRobinIndex: 0
Path #1: LunPathDevice: present
DevState: FAILED_NEED_CHECK<--------------------------------Failed
RemoveState: 0x0 StartState: 0x1 PowerState: 0x0
Path #2: LunPathDevice: present
DevState: FAILED_NEED_CHECK<--------------------------------Failed
RemoveState: 0x0 StartState: 0x1 PowerState: 0x0
Lun #1 - WWN: 60080e500017b5bc00004beb4ac4901c<---- affected LUN because CTRL B failed
----------------
LunObject: present CurrentOwningPath: A<--failover
RemoveEligible: N BootOwningPath: B
NotConfigured: N PreferredPath: B
DevState: OPTIMAL ReportedPresent: Y
ReportedMissing: N
NeedsReservationCheck: N
TASBitSet: Y
NotReady: N
Busy: N
Quiescent: N