NBU backup error: No drives are available
NBU 6.5.4 is installed on Solaris 10.
My tape library has two drives, and same type.
STORAGE UNITS has already set Maximun concurrent writes drives=2.
when I begin to backup the file in different client，then the first job is normal in DRIVE 1, another job's status is
12/25/2010 14:25:06 - requesting resource v250-hcart2-robot-tld-0
12/25/2010 14:25:06 - requesting resource v250.NBU_CLIENT.MAXJOBS.SISDB_B
12/25/2010 14:25:06 - requesting resource v250.NBU_POLICY.MAXJOBS.filesystem_SISDB_B
12/25/2010 14:25:06 - awaiting resource v250-hcart2-robot-tld-0. No drives are available.
And then, I cancel the first job, the second job will start to backup in the DRIVE 2.
By the way, Running the Drive Diagnostics and Robot Diagnostics are both successful.
what's wrong with my NBU?