Hitachi XP P9500 User Manual page 4

Automatic Failbacks...............................................................................2-20
Manual Path Switching....................................................................................2-21
Path Status Transition.....................................................................................2-22
The Online Path Status..........................................................................2-22
The Offline Path Status..........................................................................2-22
Status Transitions of a Path....................................................................2-22
Monitoring Intermittent Errors (Functionality When Automatic Failback Is Used)........2-24
Checking Intermittent Errors............................................................................2-24
Setting Up Intermittent Error Monitoring...........................................................2-24
Intermittent Error Monitoring Actions...............................................................2-25
When an Intermittent Error Occurs.........................................................2-25
When an Intermittent Error Does Not Occur............................................2-26
When the Conditions for an Intermittent Error Are Changed During Error
Monitoring............................................................................................2-27
When a User Changes the Intermittent Error Information..................................2-28
Detecting Errors by Using Path Health Checking......................................................2-29
Error Management................................................................................................2-30
Types of Collected Logs...................................................................................2-31
Filtering of Error Information...........................................................................2-33
Collecting Error Information Using the Utility for Collecting HDLM Error Information
(DLMgetras)...................................................................................................2-34
Utility for Collecting HDLM Installation Error Information (installgetras)..............2-34
Collecting Audit Log Data.......................................................................................2-34
Categories and Audit Events that HDLM Can Output to the Audit Log.................2-36
Requirements for Outputting Audit Log Data.....................................................2-40
Destination and Filtering of Audit Log Data.......................................................2-41
Audit Log Data Formats...................................................................................2-42
Integrated HDLM management using Global Link Manager.......................................2-43
Cluster Support.....................................................................................................2-44
3 Creating an HDLM Environment............................................................. 3-1
HDLM System Requirements....................................................................................3-3
Hosts and OSs Supported by HDLM................................................................... 3-3
Storage Systems Supported by HDLM...............................................................3-15
Storage Systems...................................................................................3-15
HBA (If an FC-SAN Is Used)...................................................................3-16
NIC (If an IP-SAN Is Used).....................................................................3-16
Related Products When Using Red Hat Enterprise Linux AS4/ES4.......................3-16
Cluster Software Supported by HDLM.....................................................3-16
Volume Managers Supported by HDLM....................................................3-30
File Systems Supported by HDLM...........................................................3-32
Boot Disk Environments and BladeSymphony Environments Supported by
HDLM...................................................................................................3-32
Related Products When Using Red Hat Enterprise Linux 5..................................3-36
Cluster Software Supported by HDLM (If an FC-SAN Is Used)...................3-36
Volume Managers Supported by HDLM....................................................3-43
File Systems Supported by HDLM...........................................................3-44
Boot Disk Environments and BladeSymphony Environments Supported by
HDLM (If an FC-SAN Is Used).................................................................3-46
Related Products When Using Red Hat Enterprise Linux 6..................................3-48
Cluster Software Supported by HDLM (If an FC-SAN Is Used)...................3-49
Volume Managers Supported by HDLM....................................................3-49
iv
Hitachi Dynamic Link Manager User Guide (for Linux(R))