HP XP Racks - Manual (Page 4)

The online path status...........................................................................2-20
The offline path status...........................................................................2-20
Correspondence Between Path Statuses Displayed by the OS and by HDLM2-20
Status transitions of a path....................................................................2-21
Monitoring intermittent errors (functionality when automatic failback is used)...........2-23
Checking intermittent errors............................................................................2-23
Setting up intermittent error monitoring...........................................................2-23
Intermittent Error Monitoring Actions...............................................................2-24
When an intermittent error occurs..........................................................2-24
When an intermittent error does not occur..............................................2-24
When the conditions for an intermittent error are changed during error
monitoring............................................................................................2-25
When a User Changes the Intermittent Error Information..................................2-26
Detecting errors by using path health checking.......................................................2-28
Distributing a Load by Using the Dynamic I/O Path Control Function.........................2-28
What is the Dynamic Load Balance Control Function..........................................2-28
Dynamic I/O Path Control Function..................................................................2-29
Error management................................................................................................2-29
Types of Collected Logs...................................................................................2-30
Filtering of error information............................................................................2-32
Collecting error information using the utility for collecting HDLM error information
(DLMgetras)...................................................................................................2-33
Collecting installation error information using the utility for collecting HDLM
installation error information (dlmgetrasinst)....................................................2-33
Collecting Audit Log Data.......................................................................................2-34
Categories and Audit Events that HDLM Can Output to the Audit Log.................2-35
Requirements for Outputting Audit Log Data.....................................................2-38
Destination and Filtering of Audit Log Data.......................................................2-38
Audit Log Data Formats...................................................................................2-39
Integrated HDLM management using Global Link Manager.......................................2-41
Cluster support.....................................................................................................2-42
3 Creating an HDLM Environment.............................................................3-1
HDLM System Requirements....................................................................................3-3
Host and OS Support for HDLM.........................................................................3-3
Storage Systems Supported by HDLM................................................................3-5
Storage Systems.....................................................................................3-5
HBA.......................................................................................................3-6
When Handling Intermediate Volumes Managed by Hitachi RapidXchange...3-6
Cluster Software Supported by HDLM.................................................................3-6
Memory and Disk Capacity Requirements...........................................................3-9
Memory Requirements.............................................................................3-9
Disk Capacity Requirements...................................................................3-10
Number of LUs and Paths That Are Supported in HDLM.....................................3-10
Flow for Creating an HDLM Environment.................................................................3-11
Types of HDLM Installation....................................................................................3-11
Notes on Creating an HDLM Environment...............................................................3-12
Notes on Installing HDLM................................................................................3-12
Notes on an Upgrade Installation or Re-installation of HDLM..............................3-13
Notes on the Virtual I/O Server........................................................................3-13
Notes on a License Key...................................................................................3-14
Notes on Trace Files.......................................................................................3-15
iv
Hitachi Dynamic Link Manager User Guide for AIX®