Migrating from WLM to gWLM

4
WLM-to-gWLM terminology comparison
The following table shows WLM terms and their corresponding gWLM terms.
WLM term gWLM term
Service-level objective Policy
Partition set Shared resource domain (SRD)
Passive mode
Advisory mode (not available for HP Integrity Virtual
Machines, psets, or fss groups)
Availability of WLM features in gWLM
The table below lists various WLM features and then indicates whether the given feature is supported
by gWLM.
Comparisons are based on the functionality available in WLM A.03.03 and gWLM A.04.00.
Feature WLM A.03.03 support gWLM A.04.00 support
CPU resource management Yes Yes
Memory resource management Yes No
Disk bandwidth resource
management
Yes
No
Workload types
FSS groups, psets, virtual partitions,
nPartitions that use Instant Capacity
FSS groups, psets, virtual partitions,
nPartitions that use Instant Capacity,
HP Integrity Virtual Machines, simulated
psets on OpenVMS, OpenVMS soft
partitions, workloads based on the
OpenVMS class scheduler
SLO (policy) types
Fixed, utilization-based, metric-based
(including shares-per-metric)
Fixed, utilization-based, metric-based
(including shares-per-metric custom
policies), OwnBorrow
Multiple SLOs (policies) per
workload (stretch goals)
Yes No
However, OwnBorrow policies
simulate a WLM base/stretch goal
combination
Nested partitions Yes Yes
Time-based SLOs (policies)
Yes (condition keyword)
Yes
Conditional SLOs (policies)
Yes (condition keyword) Yes (for Serviceguard events and
file-based conditions)
Process placement based on
binary name
Yes Yes
Process placement based on
user name
Yes Yes
Process placement based on
Unix group name
Yes Yes (with a user-defined process map)
Process placement based on
process maps
Yes (procmaps keyword)
Yes
Monitoring process placement by
workload with ps
Yes Yes