How Smartraid Vi Works With Mscs - Adaptec PM1564U3 Install Manual

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How SmartRAID VI Works with MSCS

When MSCS is operating on a server cluster, the servers continuously
send a heartbeat to each other across the private network connection.
When a server does not receive this signal for a preset interval, it
automatically begins the failover process of providing the resources of
the failed server and takes control of the storage subsystem.
When the transfer is complete, the failed server remains offline until the
problem that caused the failure is corrected. When the failed server is
restored, MSCS can initiate a failback operation so that the second
server releases its control of the other server's resources and the
previously failed server begins servicing client requests for its assigned
resources.
A logical array that is deleted through Storage Manager can continue to
appear as available in a Storage Manager session from a server in the
cluster or from a remote client. You must also remove the logical drive
using the Cluster Administrator to ensure that the deleted array does not
continue to be reported as available.
NOTE Both SmartRAID VI controllers must be connected to the shared
storage subsystem using special cables that include pass-
through termination. These cables can be purchased from DPT
or a supplier of your choice.
Server 1
Adapter Configuration and Installation
Public Network
Private Network
Shared SCSI bus*
*Cables must use pass-through termination.
Shared Storage
Server 2