Everyone please excuse the mistake in my previous question, there is a lot in my mind. We are already creating a complete backup every day, and would like to have WAL files to restore up to the last minute of course. Acording to http://www.postgresql.org/docs/8.1/static/runtime-config-wal.html#GUC-ARCHIVE-COMMAND http://www.postgresql.org/docs/8.1/static/backup-online.html#BACKUP-ARCHIVING-WAL I tried a couple of them and got an error messages stating that WAL archiving was not activated, so, how can I activate it? thanks these docs explain a lot but are not practical like the ones in howtoforge.com for example ;) In regards to my previous question, I did not check what I wrote, what I meant is that the 16*1024*1024 WAL file size is too big for us because we handle just a few KB per day of information, so are interested in a smaller WAL file size, perhaps 1024*1024 or even less so that we can backup the files in less media space, but in the postgresql@xxxxxxxxxxxx IRC channel I was told that I would make the database work slower if I make a WAL file too small, what is your take on the matter? recomendation? etc? thanks a lot! --- "Eduardo J. Ortega" <ejortegau@xxxxxxxxxxxx> wrote: > For what i understand, the WAL files only record > changes to the database, so > each WAL segment is absolutely different from the > previous one. As a matter > of fact, each WAL file is the incremental backup you > want to make (provided > you have already taken a base or level 0 backup). > > On Monday 12 February 2007 13:42, pedro noticioso > wrote: > > hi there > > > > I lightly read this > > > http://www.postgresql.org/docs/8.1/static/backup-online.html > > > > and am interested in creating an incremental > backup of > > WAL files, but my database is small so each of > this > > WAL files must be almost identical to the previous > > one. > > > > Is there a way to incrementally backup so that it > > takes less space? > > > > thanks! > > > > > > > > > ___________________________________________________________________________ > >_________ Finding fabulous fares is fun. > > Let Yahoo! FareChase search your favorite travel > sites to find flight and > > hotel bargains. > http://farechase.yahoo.com/promo-generic-14795097 > > > > ---------------------------(end of > broadcast)--------------------------- > > TIP 1: if posting/reading through Usenet, please > send an appropriate > > subscribe-nomail command to > majordomo@xxxxxxxxxxxxxx so that your > > message can get through to the mailing list > cleanly > > -- > Eduardo J. Ortega - Linux user #222873 > "No fake - I'm a big fan of konqueror, and I use it > for everything." -- Linus > Torvalds > > ---------------------------(end of > broadcast)--------------------------- > TIP 7: You can help support the PostgreSQL project > by donating at > > > http://www.postgresql.org/about/donate > ____________________________________________________________________________________ Looking for earth-friendly autos? Browse Top Cars by "Green Rating" at Yahoo! Autos' Green Center. http://autos.yahoo.com/green_center/