HP XP7 Storage - Manual (Page 4)

Automatic Failovers............................................................................... 2-17
Automatic Failbacks...............................................................................2-19
Manual Path Switching.................................................................................... 2-19
Path Status Transition..................................................................................... 2-20
The Online Path Statuses....................................................................... 2-21
The Offline Path Statuses.......................................................................2-22
Status Transitions of a Path....................................................................2-22
Monitoring Intermittent Errors (Functionality When Automatic Failback Is Used)........2-26
Checking Intermittent Errors............................................................................2-26
Setting Up Intermittent Error Monitoring...........................................................2-26
Intermittent Error Monitoring Actions............................................................... 2-27
When an Intermittent Error Occurs......................................................... 2-27
When an Intermittent Error Does Not Occur............................................ 2-28
When the Conditions for an Intermittent Error Are Changed During Error
Monitoring............................................................................................ 2-28
When a User Changes the Intermittent Error Information.................................. 2-29
Detecting Errors by Using Path Health Checking...................................................... 2-31
Distributing a Load by Using the Dynamic I/O Path Control Function.........................2-32
What is the Dynamic Load Balance Control Function..........................................2-32
Dynamic I/O Path Control Function.................................................................. 2-32
Dynamic Re-configuration......................................................................................2-33
Adding an LU Dynamically............................................................................... 2-33
Deleting an LU Dynamically............................................................................. 2-33
Error Management................................................................................................ 2-33
Types of Collected Logs...................................................................................2-34
Filtering of Error Information........................................................................... 2-36
Collecting Error Information Using the Utility for Collecting HDLM Error Information
(DLMgetras)................................................................................................... 2-37
Collecting Audit Log Data.......................................................................................2-37
Categories and Audit Events that HDLM Can Output to the Audit Log................. 2-39
Requirements for Outputting Audit Log Data.....................................................2-43
Destination and Filtering of Audit Log Data....................................................... 2-43
Audit Log Data Formats...................................................................................2-44
Integrated HDLM management using Global Link Manager.......................................2-45
Cluster Support.....................................................................................................2-46
3 Creating an HDLM Environment............................................................. 3-1
HDLM System Requirements....................................................................................3-2
OSs Supported by HDLM................................................................................... 3-2
Supported OSs........................................................................................3-2
Microsoft MPIO Drivers............................................................................ 3-3
Web Browsers Supported by HDLM.......................................................... 3-3
Storage systems Supported by HDLM.................................................................3-3
Supported Storage systems......................................................................3-3
HBAs......................................................................................................3-6
When Using Intermediate Volumes Managed by Hitachi RapidXchange to
Exchange Data........................................................................................3-6
Cluster Software Supported by HDLM.................................................................3-7
Volume Managers Supported by HDLM.............................................................3-12
Virtual Environments Supported by HDLM.........................................................3-12
Memory and Disk Capacity Requirements......................................................... 3-13
Memory Requirements...........................................................................3-13
iv
Hitachi Dynamic Link Manager (for Windows®) User Guide