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manual abstract
Automatic Failbacks...............................................................................2-15
Manual Path Switching....................................................................................2-16
Path Status Transition.....................................................................................2-17
The Online Path Statuses.......................................................................2-17
The Offline Path Statuses.......................................................................2-17
Correspondence between VMware vSphere and HDLM path statuses.........2-18
Status Transitions of a Path....................................................................2-18
Monitoring Intermittent Errors................................................................................2-20
Checking Intermittent Errors............................................................................2-20
Setting Up Intermittent Error Monitoring...........................................................2-20
Intermittent Error Monitoring Actions...............................................................2-21
When a User Changes the Intermittent Error Information..................................2-21
Detecting Errors by Using Path Health Checking......................................................2-22
Distributing a Load by Using the Dynamic I/O Path Control Function.........................2-22
What is the Dynamic Load Balance Control Function..........................................2-22
Dynamic I/O Path Control Function..................................................................2-23
Error Management................................................................................................2-23
Types of Collected Logs...................................................................................2-24
Collecting Error Information.............................................................................2-26
Collecting Audit Log Data.......................................................................................2-26
Categories and Audit Events that HDLM Can Output to the Audit Log.................2-28
Requirements for Outputting Audit Log Data.....................................................2-30
Destination and Filtering of Audit Log Data.......................................................2-30
Audit Log Data Formats...................................................................................2-31
Integrated HDLM management using Global Link Manager.......................................2-33
3 Creating an HDLM Environment.............................................................3-1
HDLM System Requirements....................................................................................3-2
Hosts and OSs Supported by HDLM...................................................................3-2
Host OS support......................................................................................3-2
Remote management client OS support....................................................3-2
Storage Systems Supported by HDLM................................................................3-3
Memory and Disk Capacity Requirements...........................................................3-3
Memory Requirements.............................................................................3-3
Disk Requirements..................................................................................3-3
Number of LUs and Paths That Are Supported in HDLM.......................................3-4
Flow for Creating an HDLM Environment..................................................................3-4
HDLM Installation Types..........................................................................................3-4
Notes on Creating an HDLM Environment.................................................................3-5
Installing HDLM......................................................................................................3-6
Performing a New Installation of HDLM.............................................................. 3-6
New installation on remote management client..........................................3-7
Unattended installation on remote management client............................... 3-8
New installation on host...........................................................................3-9
Performing an Upgrade Installation of HDLM....................................................3-11
Performing a Re-installation of HDLM...............................................................3-11
Settings When Managing HDLM by Using Global Link Manager...........................3-11
Creating a user account.........................................................................3-12
Adding the host to the Credential Store file.............................................3-12
Executing the dlmrmcenv utility..............................................................3-13
Specify Windows Firewall settings...........................................................3-13
Checking the Path Configuration............................................................................3-15
iv
Hitachi Dynamic Link Manager User Guide for VMware®
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