George,

I think I can help answer the function of the Sleep settings.  Simply put,
it's the amount of time the Networker media management daemon (nsrmmd)
waits after receiving a "Task complete" signal from the library before
issuing the next command to the device.

Example:
The Eject sleep value is set to 5.

One issues the command to unload a tape from a tape drive.

nsrmmd first confirms the library is accepting commands, then issues the
tape rewind command.
Once the tape rewind command completes, nsrmmd will wait 5 seconds before
issuing the tape eject command.

I've seen problems with "read open" errors when our library was configured
to perform automated drive cleanings.  I found that the Load sleep value
within Legato was too long and the library had time to grab a cleaning
cartridge & slap it into an empty drive right in the middle of Legato
loading, unloading or labeling tapes.

Similarly, when using Legato to manage device cleanings, I found the
default Cleaning delay of 60 was too short.  It takes 5 minutes for my
DLT7000 drives to perform a cleaning.

--
Note: To sign off this list, send a "signoff networker" command via email
to listserv AT listmail.temple DOT edu or visit the list's Web site at
http://listmail.temple.edu/archives/networker.html where you can
also view and post messages to the list.
=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=