The table below summarizes the functions that can be set in HDLM. For details about each function, see Setting up load balancing and subsequent sections.
Each function has a default value and a recommended value. If no function is set by the HDLM command's set operation, the default value is applied for each function. The recommended values are used as the guideline values when functions are configured.
Function |
Default value |
Recommended value |
|---|---|---|
Load-balancing |
on The Extended Least I/Os algorithm is used. |
on The recommended algorithm depends on the operating environment. |
Path health checking |
on 30-minute check interval |
on The recommended checking interval depends on the operating environment. |
Automatic failback |
on 1-minute check interval |
The recommended checking interval depends on the operating environment. |
Intermittent Error Monitor |
off |
off |
Logging level |
3: Collects all the error information for the "Information" level or higher |
3: Collects all the error information for the "Information" level or higher |
Trace level |
0: Do not output trace files |
0: Do not output trace files |
File size for the Error log |
9900 (KB) |
9900 (KB) |
Number of files for the Error logs |
2 |
2 |
File size for trace information |
1000 (KB) |
1000 (KB) |
Number of files for trace information |
4 |
4 |
Collection of audit log data |
off |
The recommended value depends on the operating environment. Set on, if you want to collect audit log data. |
Audit log facility |
user |
local0 to local7 |