HP Hitachi Dynamic Link Manager Software - Manual (Page 9)

HDLM Resident Processes......................................................................................4-24
Reconfiguring the HDLM Operating Environment.....................................................4-25
Replacing HBAs..............................................................................................4-25
Preparation for replacing HBAs...............................................................4-26
Procedure for replacing HBAs.................................................................4-27
Updating the path information after the host is restarted..........................4-30
Replacing a Fiber Cable...................................................................................4-31
Replacing the Fibre Channel Switch..................................................................4-34
Changing the HDLM Device Configuration.........................................................4-36
Notes on Changing the HDLM Device Configuration.................................4-36
Adding a New LU ..................................................................................4-38
Adding a Path to an Existing LU .............................................................4-40
Deleting an Existing LU .........................................................................4-41
Deleting a Path to an Existing LU ...........................................................4-42
Changing a Device Managed by HDLM into One Not Managed by HDLM:...4-44
Changing a Device Not Managed by HDLM Into One Managed by HDLM....4-44
Restoring the Path of an HDLM Device Started in Disconnected Status (When
a Restart Is Required)............................................................................4-45
Restoring the Path of an HDLM Device Started in Disconnected Status (When
a Restart Is Not Required).....................................................................4-46
Restoring the Path in Disconnected Status...............................................4-49
Changing an HDLM device name......................................................................4-49
About Creating a New HDLM Device.................................................................4-52
Note on adding a Hitachi Compute Blade I/O drawer.........................................4-53
5 Troubleshooting....................................................................................5-1
Information Collected by the DLMgetras Utility for Collecting HDLM Error Information. 5-2
Checking Error Information in Messages...................................................................5-2
What To Do for a Path Error....................................................................................5-3
Examining the Messages...................................................................................5-5
Obtain Path Information....................................................................................5-5
Identifying the Error Path..................................................................................5-5
Narrowing Down the Hardware That Might Have Caused the Error....................... 5-5
Identifying the Error Location and Correcting any Hardware Error........................5-5
Placing the Path Online.....................................................................................5-5
What To Do for a Program Error..............................................................................5-6
Examining the Messages...................................................................................5-6
Obtaining Program Information.........................................................................5-6
What To Do for the Program Error.....................................................................5-7
Contacting your HDLM Vendor or Maintenance Company.....................................5-7
What To Do for Other Errors....................................................................................5-7
6 Command Reference.............................................................................6-1
Overview of the HDLM Command dlnkmgr................................................................6-2
clear (Returns the Path Statistics to the Initial Value)................................................6-3
Format.............................................................................................................6-3
To set the path statistics to 0...................................................................6-3
To display the format of the clear operation.............................................. 6-3
Parameters......................................................................................................6-3
To Set the Path Statistics to 0..................................................................6-3
To Display the Format of the clear Operation............................................6-4
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Hitachi Dynamic Link Manager User Guide for Linux ®