Datasheet

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partition is supported for IBM i in this environment, by assigning both the types of adapters to the
partition in the HMC or SDMC.
2.1.2 Storage virtualization
2.1.2.1 Disk virtualization
To virtualize integrated disk (SCSI, SAS or SSD) or LUNs from a SAN system to an IBM i client
partition or virtual server, both HMC/SDMC and IBM i objects must be created. In the
HMC/SDMC, the minimum required configuration is:
 One VSCSI server adapter in the host partition
 One VSCSI client adapter in the client partition
Note: for the remainder of this paper, the terms LPAR or partition (when using an HMC) will also
mean virtual server (when using SDMC).
This VSCSI adapter pair allows the client partition to send read and write I/O operations to the
host partition. More than one VSCSI pair can exist for the same client partition in this
environment.
There is no additional disk storage configuration required in the client partition. In the host
partition, the minimum required setup consists of the following requirements:
 One network server description (NWSD) object
 One network server storage space (NWSSTG) object
At least one NWSD object must be created in the hosting partition for each client partition. The
NWSD object is associated with a VSCSI server adapter in the hosting partition’s profile, which in
turn is connected to a VSCSI client adapter in the HMC/SDMC. The NWSD also contains links to
one or more NWSSTG objects.
The NWSSTG objects correspond to the virtual disks provided to the client IBM i partition. They
are created from available physical storage in the host partition. In the client, they are recognized
and managed as standard DDxx disk devices (with a different type and model). Figure 2 shows
several storage spaces for a client partition in an IBM i 6.1/I 7.1 host partition:
Figure 2: example storage spaces
Figure 3 shows several storage spaces as seen in an IBM i 6.1/I 7.1 client partition: