HP XP7 Storage - Manual (Page 421)

• An LU has been removed from being an HDLM management-target
Automatic Switching of Paths That Have the Online(E), Offline(C), or
Offline(E) Status
In HDLM 5.5 or later, if one of the following conditions is satisfied, the status
of Online(E), Offline(C), or Offline(E) paths will automatically change to
Online. In HDLM 5.4 or earlier, even if one of the following conditions is
satisfied, the path status will not automatically change to Online:
• Online(E) paths
If one of the following conditions is satisfied, Online(E) paths will
automatically change to Online.
¢
A path that was disconnected and was free from any I/O errors has
been recovered
¢
An LU was removed from being an HDLM management-target, and
then the same LU is re-added as an HDLM management-target
• Offline(C) paths
When all of the following conditions are satisfied, the connected
Offline(C) paths are automatically placed Online:
¢
All the online paths are Online(E) and the SCSI devices connected to
the Online(E) paths have been deleted.
¢
SCSI devices are connected and all the Offline(E) paths are subject
to automatic failbacks.
¢
SCSI devices are connected to the Offline(C) paths.
• Offline(E) paths, where intermittent errors are thought to have
occurred
When the following conditions are satisfied, the connected Offline(E)
paths are automatically placed Online:
¢
All the online paths are Online(E) and the SCSI devices connected to
the Online(E) paths have been deleted.
¢
The SCSI devices are connected to the Offline(E) paths.
• Offline(E) paths, where intermittent errors are not thought to have
occurred
If one of the following conditions is satisfied, Online(E) paths will
automatically change to Online.
¢
A path that was disconnected and was free from any I/O errors has
been recovered
¢
An LU was removed from being an HDLM management-target, and
then the same LU is re-added as an HDLM management-target
Functional Differences Between Versions of HDLM
A-5
Hitachi Dynamic Link Manager (for Windows®) User Guide