HP XP Racks - Manual (Page 4)

Preparing mapped volumes for use ..........................................................................................39
Using mapped volumes ..........................................................................................................40
Recognizing the local system from the external system..................................................................40
5 Monitoring and maintenance.....................................................................42
Monitoring external volumes and paths ....................................................................................42
Editing external volume policies (settings)...................................................................................42
Editing mapping policies ....................................................................................................43
Changing external volume MP blade .......................................................................................44
Changing path mode to ALUA mode (Enable or Disable).............................................................46
Changing I/O system for external storage systems......................................................................47
Editing external WWN settings ...............................................................................................47
Path maintenance...................................................................................................................49
Adding an external path to an existing path group ................................................................50
Changing external path priority ..........................................................................................50
Disconnecting an external path ...........................................................................................51
Reconnecting an external path ............................................................................................52
Changing the cache mode setting of the external volume........................................................52
Prerequisites.................................................................................................................52
Changing the cache mode.............................................................................................53
Removing, replacing an external path ..................................................................................53
Replacing all external paths ...............................................................................................54
Disconnecting external systems and volumes .............................................................................55
Prerequisite requirements....................................................................................................56
Disconnecting an external storage system, all mapped volumes ...............................................56
Disconnecting a single mapped volume ...............................................................................57
Reconnecting external systems and volumes ..............................................................................59
Reconnecting an external storage system, all mapped volumes.................................................60
Reconnecting a single mapped volume ................................................................................61
Deleting an external volume mapping ......................................................................................62
Powering off and on local, external storage systems ...................................................................65
Requirements for external storage system maintenance............................................................65
Powering off and on the external storage system....................................................................66
Powering off and on the local storage system.........................................................................66
Powering off and on both storage systems.............................................................................67
6 Troubleshooting........................................................................................68
Contacting HP Technical Support..............................................................................................68
General troubleshooting .........................................................................................................68
Troubleshooting external path status..........................................................................................69
Troubleshooting path errors for specific storage systems...............................................................71
HP XP7 Storage Storage System...........................................................................................71
Unified Storage VM, P9500, and XP24000/XP20000 Disk Array...........................................72
XP12000 Disk Array / XP10000 Disk Array..........................................................................72
XP1024/XP128 Disk Array..................................................................................................73
XP512/XP48 Disk Array......................................................................................................73
Thunder 9500V.................................................................................................................74
HUS/AMS/WMS..............................................................................................................74
SVS200 ..........................................................................................................................75
Troubleshooting port and volume discovery problems..................................................................75
7 Support and other resources......................................................................77
Contacting HP........................................................................................................................77
Subscription service............................................................................................................77
Documentation feedback....................................................................................................77
Related information.................................................................................................................77
4 Contents