This example describes a scenario for configuring the SAN Volume Controller using
the SAN Volume Controller Console.
The main focus of the following
example is to provide storage to
a host system.
In this example, you want to provide a host
system
with two disks and create a FlashCopy of these two disks. You want
the copy to be made available to a second host. These two hosts require
that the host objects that are created, correspond with the group
of worldwide port names (WWPNs) that are presented by their fibre-channel
host bus adapters (HBAs) to the SAN. You also need to create four
virtual disks (VDisks), one for each of the disks that are to be presented
to the hosts. Once the VDisks are created, you can map two of them
to each host. In order to create the VDisks, you must have a managed
disk (MDisk) group to be able to create them from. You want to spread
the eight MDisks across two groups and create the source VDisks from
one and the target VDisks from the other. In order to create any
of these objects, you must create a cluster and at least one more
node to the cluster.
The following steps describe how this can
be done:
- Create a cluster.
- Configure the cluster with
an IP address of 9.20.123.456, a fabric
speed of 2 Gbps. Name the cluster examplecluster.
- Launch
the SAN Volume Controller application
for the cluster. A secondary browser window opens to the SAN Volume Controller Web
application. Now you can work with the specific SAN Volume Controller cluster which you selected.
- Add the following
nodes:
- knode and lnode to the input/output (I/O)
group
called io_group0 in the examplecluster cluster
- mnode and nnode to
the I/O group called io_group1
in the examplecluster cluster
- Create the MDisk
groups maindiskgroup and bkpdiskgroup
- Create
four VDisks
- 2 VDisks from maindiskgroup
- 2 VDisks from
bkpdiskgroup
- Create two host objects
- A host
object called demohost1 with HBAs that have WWPNs
of 210100e08b251dd4, and 210100e08b251dd5
- A
host object called demohost2 with HBAs that have WWPNs
of 210100e08b251dd6, and 210100e08b251dd7
- Create the VDisk-to-host mappings
- Create a VDisk-to-host
mapping for demohost1
- Create a VDisk-to-host mapping for demohost2
Once this step is complete, you have successfully created
storage on your host system.
- Create a FlashCopy consistency
group called maintobkpfcopy and
add the two FlashCopy mappings to it.
Note: You must first create
FlashCopy mappings to define the relationships.