Hitachi Dynamic Link Manager Software Users Guide for Linux
4 HDLM Operation................................................................................... 4-1
Notes on Using HDLM............................................................................................. 4-2
Notes Common to OSs......................................................................................4-2
Notes When Using Red Hat Enterprise Linux AS4/ES4, or Oracle Enterprise Linux 4
.......................................................................................................................4-4
Notes When Using Red Hat Enterprise Linux 5, Red Hat Enterprise Linux 6, Oracle
Enterprise Linux 5, Oracle Unbreakable Enterprise Kernel 5, or Oracle Unbreakable
Enterprise Kernel 6........................................................................................... 4-5
Notes When Using SUSE LINUX Enterprise Server 10.......................................... 4-6
Notes When Using SUSE LINUX Enterprise Server 11.......................................... 4-7
Updating Kernel Packages and Applying OS Update Packages.................................... 4-8
When using Red Hat Enterprise Linux AS4/ES4, Oracle Enterprise Linux 4, Oracle
Enterprise Linux 5, Oracle Unbreakable Enterprise Kernel 5, Oracle Unbreakable
Enterprise Kernel 6, or SUSE Linux Enterprise Server.........................................4-10
When you are not using the HDLM device as a boot disk..........................4-10
When you are using the HDLM device as a boot disk................................4-11
When you are using a logical volume (LVM2) on the HDLM device as a boot
disk...................................................................................................... 4-11
When using Red Hat Enterprise Linux 5 or Red Hat Enterprise Linux 6................4-12
When you are not using the HDLM device as a boot disk..........................4-12
When you are using the HDLM device as a boot disk................................4-13
When you are using a logical volume (LVM2) on the HDLM device as a boot
disk...................................................................................................... 4-20
HDLM Operations Using Commands........................................................................4-34
Notes on Using Commands..............................................................................4-34
Viewing Path Information................................................................................ 4-35
Changing the Status of Paths...........................................................................4-35
Changing the Status of Paths to Online................................................... 4-35
Changing the Status of Paths to Offline(C).............................................. 4-36
Viewing LU Information...................................................................................4-37
Displaying Corresponding Information About an HDLM Device, SCSI Device, and
LDEV............................................................................................................. 4-38
Initializing Statistical Information for Paths....................................................... 4-38
Viewing and Setting Up the Operating Environment...........................................4-39
Viewing the Operating Environment........................................................4-39
Setting Up the Operating Environment.................................................... 4-40
Viewing License Information............................................................................4-41
Updating the License.......................................................................................4-41
Viewing HDLM Version Information.................................................................. 4-42
Viewing HDLM Component Information............................................................ 4-42
Starting and Stopping the HDLM Manager...............................................................4-43
Starting the HDLM Manager.............................................................................4-43
Stopping the HDLM Manager........................................................................... 4-44
HDLM Resident Processes......................................................................................4-45
Reconfiguring the HDLM Operating Environment..................................................... 4-46
Replacing HBAs.............................................................................................. 4-46
Preparation for replacing HBAs............................................................... 4-47
Procedure for replacing HBAs................................................................. 4-48
Updating the path information after the host is restarted..........................4-51
Replacing a Fiber Cable...................................................................................4-52
Replacing the Fibre Channel Switch..................................................................4-55
Changing the HDLM Device Configuration.........................................................4-57
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Hitachi Dynamic Link Manager (for Linux®) User Guide