onbar label 0 backup will backup logical log ?

my box is ids10 with TSM. I issue 'onbar -b -L 0' or 'onbar -b -w -L 0' to backup label 0 archive. It will backup logical log automatically . Why It do this ? Can I backup full system not include logical log file just like 'ontape -s -L 0'?

it does probably a log switch... anyways: if you do a onbar -b -w -L 0 you can do a restore without logs. check the manual... Superboer. On 1 feb, 04:36, ro...@star2000.com.tw wrote: > my box is ids10 with TSM. > I issue 'onbar -b -L 0' or 'onbar -b -w -L 0' to backup label 0 > archive. > It will backup logical log automatically . Why It do this ? > Can I backup full system not include logical log file just like > 'ontape -s -L 0'?

On 2月1日, 下午3時41分, Superboer <superbo...@t-online.de> wrote: > it does probably a log switch... anyways: > > if you do a onbar -b -w -L 0 you can do a restore without logs. > check the manual... > > Superboer. > > On 1 feb, 04:36, ro...@star2000.com.tw wrote: > > > my box is ids10 with TSM. > > I issue 'onbar -b -L 0' or 'onbar -b -w -L 0' to backup label 0 > > archive. > > It will backup logical log automatically . Why It do this ? > > Can I backup full system not include logical log file just like > > 'ontape -s -L 0'? Either 'onbar -b -L 0" or 'onbar -b -w -L 0' , will backup logical log together ! Not just switch log.

> Either 'onbar -b -L 0" or 'onbar -b -w -L 0' , will backup logical > log together ! > Not just switch log. Nope. (if i am correct V11 will backup the logs to allow a paralel backup???? CHECK THE MANUALS!!! ) hmmm dependant on the version; in the past < V11 if you execute a onbar -b -L 0 and your LTAPEDEV was set to /dev/null you could not restore. This because the logical logs were not backed up. so the glue to glue all together was missing. if you did a onbar -b -w -L 0The logs on disk in the dbspace where the logs reside are backed up in the dbspace where the logs reside!!!!!!!! same way as ontape works!!!!! execute a onbar -b something caused a log switch which executed a onbar -b -l due to the alarm program. Superboer.

Just to clarify: The following commands will backup the dbspaces and logical logs: onbar -b -L 0 onbar -b -L 0 -w The following commands will backup dbspaces ONLY: onbar -b -p -L 0 onbar -b -p -L 0 -w If you set LTAPEDEV to /dev/null and start the instance then the following commands are NOT allowed: onbar -b -L 0 onbar -b -p -L0 This is becase this type of backup is a "dbspace backup". Every dbspace is backed up in a different time (different checkpoint) and therefore logical logs are needed to restore them. The difference from V11 and V10 is that V10 will consider only the value of LTAPEDEV in the onconfig, while cheetah uses shared memory, therefore it cannot be cheated :-). In Cheetah also Whole_system backups are also parallel, therefore, they do not look alike ontape backups anymore. Regards Gustavo Superboer wrote: >> Either 'onbar -b -L 0" or 'onbar -b -w -L 0' , will backup logical >> log together ! >> Not just switch log. > > Nope. > > (if i am correct V11 will backup the logs to allow a paralel > backup???? CHECK THE MANUALS!!! ) > hmmm dependant on the version; in the past < V11 > if you execute a onbar -b -L 0 and your LTAPEDEV was set to /dev/null > you could not restore. This because the logical logs were not backed > up. > so the glue to glue all together was missing. > > if you did a > onbar -b -w -L 0> The logs on disk in the dbspace where the logs reside are backed up in > the dbspace > where the logs reside!!!!!!!! same way as ontape works!!!!! > execute a onbar -b something caused a log switch which executed a > onbar -b -l due to the alarm program.> > > Superboer. > > _______________________________________________ > Informix-list mailing list > Informix-list@iiug.org > http://www.iiug.org/mailman/listinfo/informix-list > >