Action
Verify that the library or logical library meets the prerequisites for the number, type, and configuration of
tape drives.
Verifying basic control path failover
After enabling basic control path failover, verify the configuration of both paths.
After verifying library connectivity using each of the library control paths the library control path may be
moved back to the original drive if so desired by using the
Procedure
1.
Verify that the hosts configured for access to the library are able to communicate with the library.
2.
If the library is not accessible to the hosts, add the library Worldwide Node Name to switch zones.
3.
Using the library OCP or RMI, power off the drive marked as hosting the library logical unit number
Drive 1 (LUN)
Figure 10: Configure library, basic control path failover configuration disabled
on page 40 -
Configure > Drives
.
4.
Verify that the LUN indicator moved to the alternate control path drive.
5.
Verify that host connectivity to the library has not changed. Configure switch zoning to allow host
access if necessary.
6.
If you prefer to host the library control path with the original drive, configure the tape drive hosting the
library control path.
Locating the library world-wide node name Configuration requirements
after enabling control path failure
When basic control path failover is enabled, the library is no longer presented as a logical unit behind the
tape drive and is assigned a new Fibre Channel node name.
To see the library world-wide node name, navigate to the RMI
Identity > Library
screen.
Configuring the tape drive hosting the library control path
Procedure
1.
Navigate to the RMI
Configuration > System
screen.
2.
In the
System Configuration
pane, select the
Library LUN Hosted By Drive
.
3.
A library with multiple logical libraries has a library control path for each logical library.
4.
Select the
Alternate Drive for Library Control Path
, if necessary.
5.
Click
Apply
.
42
Verifying basic control path failover
