Hitachi Dynamic Link Manager Software Users Guide for AIX

Changing the Status of Paths.............................................................................4-6
Changing the Status of Paths to Online.....................................................4-6
Changing the Status of Paths to Offline(C)................................................ 4-7
Viewing LU Information.....................................................................................4-8
Displaying the Correspondences Between hdisks, OS Management Path IDs, and
LDEVs..............................................................................................................4-8
Initializing Statistical Information for Paths.........................................................4-9
Viewing and Setting Up the Operating Environment...........................................4-10
Viewing the Operating Environment........................................................4-10
Setting Up the Operating Environment.................................................... 4-10
Viewing License Information............................................................................4-11
Updating the License.......................................................................................4-12
Viewing HDLM Version Information.................................................................. 4-12
Viewing HDLM Component Information............................................................ 4-13
Starting and Stopping the HDLM Manager...............................................................4-14
Starting the HDLM Manager.............................................................................4-14
Stopping the HDLM Manager........................................................................... 4-14
HDLM Resident Processes......................................................................................4-15
Changing the Configuration of the HDLM Operating Environment............................. 4-15
Changing an HDLM Management-Target Device................................................4-15
Adding an HDLM Management-Target Device.......................................... 4-15
Deleting an HDLM Management-Target Device........................................ 4-15
Changing an HDLM Management-Target Device...................................... 4-16
Changing hdisk attributes................................................................................4-17
Automatically Performing hdisk Reconfiguration.......................................4-17
Manually Performing hdisk Reconfiguration............................................. 4-18
Changing a Path............................................................................................. 4-21
Adding a Path (to a Volume Group Other than rootvg)............................. 4-21
Adding a Path (to a Device Included in rootvg)........................................4-21
Deleting a Path (of a Volume Group Other than rootvg)........................... 4-22
Deleting a Path (of a Device Included in rootvg)...................................... 4-23
Replacing an HBA........................................................................................... 4-23
Replacing a Fiber Cable...................................................................................4-28
Replacing a Fibre Channel Switch.....................................................................4-29
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 Errors.......................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
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Hitachi Dynamic Link Manager (for AIX) User Guide