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Explanation of console messages Message lines
Check the following values:
– soft minimum number of empty PV
– hard minimum number of empty PV
– absolute minimum number of empty PV
– amount of valid data for REORG
– timeframe for REORG
The margin between “soft” and “hard” should be large enough, and the REORG interval
should be suitably big. Normally, the value specified for the degree to which the cartridge
for reorganization is filled should be large.
If everything is as it should be and if the average degree to which all physical volumes are
filled is more than 50%, mount cartridges.
SXPL009 PLM(#9): NOTICE: number of free PVs of PVG <name>, TL <name> over hard minimum
(<num>) again
Meaning
The number of available tapes is again greater than <num>.
SXPL010 PLM(#10):ALERT: absolute minimum of free PVs (<num>) of PV-group <PVG> reached
Meaning
Only <num> tapes are still free. Aside from reorganization, no more save operations will be
executed. The effective throughput of CentricStor is significantly reduced.
Response
This state must be avoided at all costs.
Temporary relief for throughput problems: mount new tapes.
In the long term: check the settings that control reorganization by means of the GXCC
function “Physical Volume Groups” (see page 181).
Check the following values:
– soft minimum number of empty PV
– hard minimum number of empty PV
– absolute minimum number of empty PV
– amount of valid data for REORG
– timeframe for REORG
The margins between “soft”, “hard” and “absolute” should be large enough and the REORG
interval should be suitably big. If CentricStor often ends up with an insufficient number of
free tapes, you should try and select a higher threshold for “soft” and increase the degree
to which a physical volume can be filled. This allows larger reserves to be created on
available physical volumes during reorganization.