2.2.1.4 Alter the Placement of Services
Exascale system components are implemented using a series of software services.
By default, the storage service instances are distributed across the Exascale cluster with the aim of evenly distributing the overall workload. However, as an Exascale administrator, you can alter the placement of the services to optimize the workload balance.
To alter the placement of Exascale storage services, you can start a service on a node where it is not running and then disable the same service on another node where it is running.
For example, you can use the following ESCLI command sequence to alter the placement
of block store worker service (BSW) by starting the service on cell09
and
disabling it on cell03
.
@> chservice --attributes name=bsw_cell09 --start
@> chservice --attributes name=bsw_cell03 --disable
Note:
You cannot alter the placement of Exascale cluster services (EGS). EGS always runs on the first five nodes in the Exascale cluster.
Related Topics
Parent topic: Administer Exascale Services