Informix version 12.10.FC13 - on Solaris server
I want to use different BACKUP_FILTER settings for onbar and ontape.
I use onbar for daily backups and logs and ontape for syncing RSS.
For onbar - BACKUP_FILTER = /opt/csw/bin/pigz -1 -p 2 -b 256
For ontape - BACKUP_FILTER = /opt/csw/bin/pigz -1 -p 8 -b 256
The difference is different levels of parallelism for the compression routine pigz.
Since ontape is single threaded I can run 8 parallel threads of pigz (-p 8) and keep total cpu utilization below 40% and get the quickest backup.
Since onbar is a parallel backup BAR_MAX_BACKUP=4, I can only do 2 parallel threads of pigz (-p 2) per onbar process. This uses about 40-50% cpu.
The only way to change BACKUP_FILTER is by editing the onconfig file. This is not very practical. I would like to be able to change it with an "onmode -wm ..." command.
|Who would benefit from this IDEA?||It would make the DBA's job easier.|
How should it work?
Allow changes to BACKUP_FILTER with the onmode -wm or onmode -wf command
|Client Name||Stephen Berg|
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