Configure a DS8000® storage
system for an open systems host by creating fixed block (FB) pools
and volumes. After you complete these steps, connect the volumes to
a host system.
Procedure
- Create a pair of FB pools, one for each processor node,
by using the Create Pool Pair action in the Arrays
by Pool page. The DS8000 Storage
Management GUI automatically
creates a pair of pools, which balances the workload between the two
nodes.
- In the Create Pool Pair window, select
the number of arrays that you want to assign to the pool pair, according
to your performance needs as determined in the storage planning process. If you have multiple drive classes on your storage system, decide
how many of each drive class you want in each pool. An array consists
of eight drives. The DS8000 Storage
Management GUI configures
the selected arrays for FB storage and distributes them evenly between
the two pools.
Note: If you prefer to balance arrays manually,
you can use the Assign action in the Arrays
by Pool page.
- Create a set of FB volumes by using the Create Volumes action in either
the Volumes page or the Volumes by Pool page. The maximum capacity for an FB volume is 16 TiB. The DS8000 Storage
Management GUI calculates the
maximum number of volumes allowed (if you specify the volume size) or the maximum volume size
allowed (if you specify the number of volumes required), based on the maximum usable capacity in the
pools after metadata overhead is removed.The GUI
then automatically balances the volumes between the two pools.
Notes: - The DS8000 Storage
Management GUI
automatically configures volumes with standard provisioning. If the volumes require thin
provisioning, select the Custom option in the Create
Volumes window.
- If you want to select specific logical subsystems (LSSs) for the volumes, select the
Custom option in the Create Volumes window.
- Add the host system that accesses data on the volumes by using the Add
Host action on the Hosts page.
- Assign host ports to the host.
- Map the volumes to the host by using the Map
to Host action on the Volumes by Host page. The volumes are now accessible through all of the I/O ports
on the storage system.
- Set the I/O port protocols of the I/O ports
that the host uses to communicate with the storage system. Use the Modify
I/O Port Protocols action on the System page
to set the I/O port protocol to either SCSIFCP or FC-AL, depending
on the needs of your storage environment.
- Optional: You can limit the I/O ports that
can access the volumes by using the Modify I/O Port Mask action
on the Hosts page.
- To ensure that the I/O ports are visible to the host system, configure the fabric that connects
the host to the storage system. See online product documentation about configuring hosts.
What to do next
After configuration is complete, you can migrate data from another storage system or a host
to the new storage system. For details and procedures, see the
online product documentation about migrating data