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It is possible for a logical library to have no control path drives. To disable a control path, use the same method that is shown in Figure 4-101, but select Actions →  Disable Control Path , as shown in Figure 4-102. 

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The use of multiple control paths for any single configured logical library provides the following benefits: 

GLYPH<SM590000> Allows access to the logical library by multiple servers 

GLYPH<SM590000> Provides communication failover so that if one control path fails, host communication for the entire library is not lost 

Note:  Use the Path Failover feature (Feature Code 1682) to enable the host device driver to send a command again to an alternate control path in the same logical library. 

Configuration of Path Failover is performed in the host device driver. 

Access to the logical library is on a first-come, first-served basis. Each control path for a logical library can accept commands while the library is in use by another control path. 

Control path drives cannot be removed from a logical library that is performing jobs. If the logical library is not actively in use, control path drives can be removed from a logical library only after all non-control path drives are removed or a different control path drive is assigned. 

