Hitachi Dynamic Link Manager Software Users Guide for Windows (7.6)

The paths to the primary volume (P-VOL) in the HAM environment have
recovered from an error, but I/O to the P-VOL is suppressed.
•
Online(D)
#
The paths to the primary volume (P-VOL) in an HAM environment have
recovered from an error, but I/O to the P-VOL is suppressed. If an error
occurs in all the paths to a secondary volume (S-VOL), the status of the
P-VOL paths will be automatically changed to the Online status. To
change the status to the Online(D) status, specify the -dfha parameter
for the HDLM command's online operation.
#
The status changes to this status when using HAM (High Availability
Manager).
The Offline Path Statuses
The offline path statuses are as follows:
• Offline(C)
The path is offline because an offline operation was performed.
The (C) indicates the command attribute, which indicates that the path
was placed offline by using the GUI or a command.
• Offline(E)
The status indicating that an I/O could not be issued on a given path,
because an error occurred on the path.
The (E) means error.
• Offline(P)
This status occurs in a cluster configuration only.
The Offline(P) status indicates that the user has requested an offline
operation on an Offline(E) path that is connected to an LU that is
currently performing reserve processing. After the reserve processing
finishes, the offline operation request will be performed and the path
status will become Offline(C).
The (P) means pending, which indicates that the operation to take the
path offline is in the waiting-to-execute status (i.e. a request has been
made).
Status Transitions of a Path
The following figure shows the status transitions of a path.
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HDLM Functions
Hitachi Dynamic Link Manager User Guide for Windows
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