VLM (Virtual Library Manager)
8.16 VLM (Virtual Library Manager)
8.16.1 Object information for the VLM
Virtual libraries are emulated and mapped to physical libraries in a process pair consisting
of a VLM (Virtual Library Manager) and a PLM (Physical Library Manager).
In XTCC, the VLM and PLM are represented by small boxes in the VLP. The status of the
VLM is indicated by the colors pink (stopped), green (running), green/brown (running with
the trace switched on), and green/red (in HALT mode).
The following information is displayed:
PID:
Mode:
Autostart:
The trace masks are not specified for customer operation. If the mask contains only binary
zeros or is not present then the corresponding trace is inactive.
8.16.2 VLM functions
The following functions are available:
–
Show Cache Status
–
Set HALT Mode/Set RUN Mode
i
8.16.2.1
Show Cache Status
A cache window containing information on cache occupancy is output. The numerical
values correspond to the information that is displayed in graphical form in the Global Status
Monitor (see the
explains the terms such as "used", "dirty", etc.).
In addition, the following is displayed for each cache file system:
408
Process ID
Operational status (RUN, HALT)
Autostart enabled/disabled
Functions for monitoring and managing virtual components (logical volumes, drives,
libraries) can be called under Global Status » Statistics (for display functions see
page
245) and GXCC » Administration (for management functions see
chapter "Global Status" on page
237, the corresponding description also
XTCC
page
202).
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