HP-UX Workload Manager A.03.01 Release Notes for HP-UX 11i v1 and HP-UX 11i v2

HP-UX Workload Manager Release Notes

Known problems and workarounds

minutes begin at 3pm everyday, but the interval ends at 3:15pm, your

configuration does not actually go into effect until 3:15pm. Moreover, it is

not changed again until 3:45pm.

Workaround

Be aware of how your interval and time-based SLOs interact and adjust

them accordingly.

No metrics on startup or reconfiguration

Issue

Metrics have no value on WLM startup or reconfiguration. WLM cannot

work toward any SLOs without metrics.

Workaround

Data collectors should report metrics as soon after startup or

reconfiguration as possible.

WLM configurations cannot be activated with fewer than 100 Mbytes

of memory available

Issue

When you have WLM controlling memory, it gives each workload group 1%

of the memory when a configuration is activated and then adjusts the

percentage for workload groups with active SLOs based on settings in the

configuration. (Note that if extended_shares is enabled, WLM memory

control requires at least 512 MB of memory.)

However, WLM requires that the initial 1% of memory represent at least 1

Mbyte. On systems with fewer than 100 Mbytes of available memory, that

1% is less than 1 Mbyte. As a result, WLM cannot activate the configuration

in this case.

Workaround

Increase the system’s memory or decrease the minimum dynamic buffer

cache using the kernel parameter dbc_min_pct.