Description
Type
Metadata Access.
Behaviour
It shows information about host partitions, hosts and dbms instances.
Parameters
- level: show hosts with “1”, DBMS instances with “2” or host partitions with “3”.
- host_filter: optional filter on host name. Used only with level 2.
- host_partition: optional filter on host partition name. Used only with level 3. If no partition is specified, then the list of all partitions is shown.
- filesystem_filter : optional filter on the type of filesystem used. Used only with level 2. Possible values are: “local” for local disks, “global” for GPFS disks, “all” (default) for both types of disks.
- ioserver_filter: optional filter on the type of I/O server used. Used only with level 2. Possible values are: “mysql_table” for MySQL I/O servers, “ophidiaio_memory” for Ophidia I/O servers only or “all” (default) for any type of I/O server.
- host_status: optional filter on the status of I/O nodes. Possible values are: “up” for up hosts, “down” for down hosts, “all” (default) for all hosts.
- dbms_status: optional filter on the status of dbms instances. Used only with level 2. Possible values are: “up” for instancrs in up state, “down” for instances in down state, “all” (default) for all instances.
System parameters
- exec_mode: operator execution mode. Possible values are async (default) for asynchronous mode, sync for synchronous mode with json-compliant output.
- ncores: number of parallel processes to be used (min. 1). This operator is not parallel, so the only possible value is 1.
- sessionid: session identifier used server-side to manage sessions and jobs. Usually, users don’t need to use/modify it, except when it is necessary to create a new session or switch to another one.
- objkey_filter: filter on the output of the operator written to file (default=all => no filter, none => no output, instances => shows operator’s output table).
Examples
Show all information about hosts and dbms instances:
[OPH_TERM] >> oph_instances level=2;host_filter=all;
