When devices in a disk controller system are accessed through
a general purpose SAN, a mechanism is needed to ensure that the devices
are accessed only by SAN Volume Controllers.
Use one of the following techniques to control the access to the
disk controller systems and devices:
- Switch zoning
- LUN-masking capability of the disk controller
Logical units (LUs) or managed disks (MDisks) should be made accessible
to all ports on all the SAN Volume Controller nodes
for a cluster.
Attention: The SAN Volume Controller does not take any action to prevent two clusters from accessing
the same MDisks. If two clusters are configured so that they can see
the same MDisks, data corruption is likely to occur.