HiCommand Dynamic Link Manager (HDLM) for Windows Systems User's Guide (HIT5201-96001, January 2008)

HiCommand
®
Dynamic Link Manager (HDLM) for Windows
®
Systems User’s Guide 373
Appendix A Functionality Differences Between HDLM Versions
A.1 Functionality differences between version 5.9.1 and versions earlier than 5.9.1
 In HDLM 5.9.1, the initial window of the Path Management window of the HDLM GUI has
been changed from the Configuration view to the Path List view.
A.2 Functionality differences between version 5.9 and versions earlier than 5.9
 In HDLM 5.9, the function for remotely operating HDLM from HDLM GUI or HDLM Web GUI
by linking with HiCommand Device Manager is no longer supported.
 In HDLM 5.9, the DLMgetras utility can be started from the Windows Start menu.
A.3 Path Status Transition and Automatic Path Switching
A.1.1 Status Transition of Paths in the Online Status
In HDLM 5.5 or later, if one of the following conditions exists, the status of Online paths will
change to Online(E) or Offline(E). In HDLM 5.4 or earlier, even if one of the following
conditions exists, the path status remains Online.
 A path disconnection that is free from I/O errors has occurred
 An LU has been removed from being an HDLM management-target
A.1.2 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 exists, 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 exists, the path status does not automatically change
to Online.
 Online(E) Paths
If one of the following conditions exists, Online(E) paths will automatically change to
Online.
– A path disconnection that is free from I/O errors has been recovered.
– An LU was removed from being an HDLM management-target and then the LU was
added as an HDLM management-target again.
 Offline(C) Paths
When the following conditions are satisfied, the connected Offline(C) paths are
automatically placed Online:
– All the online paths are Online(E) and SCSI devices connected to the Online(E) paths
have been deleted.