HP XP Racks - Manual (Page 4)

Path status transition...................................................................................... 2-20
The online path status........................................................................... 2-20
The offline path status...........................................................................2-20
Correspondence Between Path Statuses Displayed by the OS and by HDLM2-21
Status transitions of a path.................................................................... 2-21
Monitoring intermittent errors (functionality when automatic failback is used)........... 2-24
Checking intermittent errors............................................................................ 2-24
Setting up intermittent error monitoring........................................................... 2-25
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
Distributing a Load by Using the Dynamic I/O Path Control Function.........................2-30
What is the Dynamic Load Balance Control Function..........................................2-30
Dynamic I/O Path Control Function.................................................................. 2-30
Error management................................................................................................ 2-31
Types of Collected Logs...................................................................................2-32
Filtering of error information............................................................................2-33
Collecting error information using the utility for collecting HDLM error information
(DLMgetras)................................................................................................... 2-34
Collecting installation error information using the utility for collecting HDLM
installation error information (dlmgetrasinst).................................................... 2-34
Collecting Audit Log Data.......................................................................................2-35
Categories and Audit Events that HDLM Can Output to the Audit Log................. 2-37
Requirements for Outputting Audit Log Data.....................................................2-40
Destination and Filtering of Audit Log Data....................................................... 2-40
Audit Log Data Formats...................................................................................2-41
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
Host and OS Support for HDLM......................................................................... 3-3
Storage Systems Supported by HDLM................................................................ 3-6
Storage Systems..................................................................................... 3-6
HBA....................................................................................................... 3-6
When Handling Intermediate Volumes Managed by Hitachi RapidXchange...3-6
Cluster Software Supported by HDLM.................................................................3-7
Memory and Disk Capacity Requirements......................................................... 3-11
Memory Requirements...........................................................................3-11
Disk Capacity Requirements................................................................... 3-11
Number of LUs and Paths That Are Supported in HDLM..................................... 3-12
Flow for Creating an HDLM Environment.................................................................3-12
Types of HDLM Installation.................................................................................... 3-13
Notes on Creating an HDLM Environment............................................................... 3-14
Notes on Installing HDLM................................................................................ 3-14
Notes on an Upgrade Installation or Re-installation of HDLM..............................3-14
Notes on the Virtual I/O Server........................................................................3-15
Notes on the License Key and License Key File..................................................3-16
iv
Hitachi Dynamic Link Manager (for AIX) User Guide