ADIC 601356 사용자 설명서

2-76

Command Reference

601356 Rev A

Obtains exclusive use of one or more drives.

The lock identifier assigned to the locked drives is returned to 
the client. This lock identifier must be used by clients on 
subsequent requests (such as 

vsmount

) for those drives.

A request to lock a drive that is busy (mounted or previously 
locked) is queued until the drive becomes available. In addition, 
intermediate status is returned to indicate the reason a request is 
being queued.

A 

vslock

 command:

•

That specifies a drive pool or a list of drives should also 
indicate the number of drives from the pool and list to be 
locked. VolServ selects the drives to lock from within the 
pool and list according to drive availability.

•

cannot specify a drive pool or a list of drives that spans 
libraries, they must be associated with a single library.

•

Reserves one drive for exclusive use if a quantity is not 
specified on the command.

VolServ considers only online drives as candidates to be locked. 
If a sufficient number of online drives in the same library are 
unavailable to satisfy a vslock command, the command fails.

If there is a sufficient number of online drives in the same 
library to satisfy a 

vslock

 request, but the number of available

 

online drives is not sufficient, the request waits until sufficient 
drives become available. 

Partial locks are not set.