ASAP 3.2 Server Manual

HP NonStop ASAP Server Manual Page 258 of 381
This option works in conjunction with the SET RETAIN ROLLOVER option allowing
database record sets on a per entity basis to be automatically rolled-over and
saved on a daily basis.
The SET DBMaxDays option is only meaningful if SET RETAIN ROLLOVER is
enabled. Note that setting DBMaxDays to a nonzero value also sets the RETAIN
option to ROLLOVER. See HELP SET RETAIN for details.
SET DBMAXDAYS days without an entity name asserts the maximum number of
default days retained for entities, and enables the option when the days value is
nonzero. For example, SET DBMAXDAYS 7 retains 1 week of data for all entities,
unless further qualified.
SET DBMAXDAYS without specifying entity or days causes the DBMaxDays
settings for each entity to be displayed.
SET DBMAXDAYS 0 disables the option and resets all ROLLOVER settings.
When SET DBMaxDays is greater than zero, rollover files are saved in the SET
DBRolloverSubvolPrefix subvolume with rollover YEAR appended to the rollover
subvol prefix; for example, $DATA.ASAPyyyy.* or $DATA.ASAP2004. When
DBMaxDays is enabled, the ASAP Collector limits the number of daily filesets for
each entity up to days. Since rollover occurs daily, this option allows ASAP to
automatically maintain a most recent number of days history without the need for
manual intervention.
Examples
SET RETAIN ROLLOVER -- enable SET DBMAXDAYS
SET DBMAXDAYS 1 -- retain 1 day of ASAP data as default
SET DBMAXDAYS Cpu 14 -- retain 14 days of ASAP CPU data
SET DBMAXDAYS Disk 7 -- retain 7 days of ASAP DISK data
SET DBMAXDAYS App 0 -- retain 0 days of ASAP APP data
SET DB $DATA.ASAPDB.DB
The set options above will retain 1 day of ASAP data for all entities except CPU, DISK,
and APP which will have 14, 7, and 0 days of history retained respectively. For the
settings given above, on January 3, 2004, the DISK data base files will be named as
follows when the DB rollover occurs:
$DATA.ASAP2004.Z0102DSK -- 2004/01/02
$DATA.ASAP2004.Z0101DSK -- 2004/01/01
$DATA.ASAP2003.Z1231DSK -- 2003/12/31
$DATA.ASAP2003.Z1230DSK -- 2003/12/30
$DATA.ASAP2003.Z1229DSK -- 2003/12/29
$DATA.ASAP2003.Z1228DSK -- 2003/12/28
$DATA.ASAP2003.Z1227DSK -- 2003/12/27