StorageTek 6 manual Automated Tape Transport Cleaning, Activating Automated Cleaning

Tape Transport Cleaning

The HSC allows you to automate the cleaning process or to manually clean library-attached tape transports. When a library transport needs to be cleaned, it informs the LMU, which broadcasts a ‘‘drive needs cleaning’’ message to all connected hosts.

The LMU broadcast causes the HSC to issue a console message indicating that a transport needs cleaning. Until a cleaning cartridge is loaded, future mounts continue to initiate this message. If auto-cleaning is disabled, HSC processing is complete, and the transport must be cleaned manually. To manually clean a transport, see “Manual Tape Transport Cleaning” on page 37 for more information.

Note: The initial value for transport cleaning is for automated cleaning to be disabled.

Automated Tape Transport Cleaning

If auto-cleaning is enabled, the HSC sets the transport to ‘‘needs cleaning’’ status. The next time a mount is issued for that tape transport, the following cleaning process is invoked prior to mounting the requested cartridge:

1.The HSC selects a cleaning cartridge from the pool of cleaning cartridges in the LSM that contains the tape transport that needs cleaning (or from the closest LSM that contains a compatible cleaning cartridge).

2.The cleaning cartridge is mounted.

3.The tape transport is cleaned.

4.The cleaning cartridge is dismounted.

When the cleaning process is complete, the original requested cartridge is mounted on the transport.

Notes: If auto-cleaning is enabled, cleaning can also be scheduled for a transport by issuing the CLean command. See “Activating Automated Cleaning” for additional information.

Activating Automated Cleaning

The MNTD AUtocln command is used to turn auto-cleaning on or off on a host-by-host basis.

The following example shows how to activate automatic cleaning.

MNTD AUTOCLN(ON)

Notes: It is probably more useful to have automated cleaning on for all hosts in a JES2 installation unless library transports are allocatable only by some hosts. In a JES3 environment, most mounts are done by the global processor and auto-cleaning should be set on for at least the global processor.

Chapter 2. Host Software Component Functions 37

1st ed., 6/30/04 - 312579601