Joshua D. Drake wrote: >> - If we don't use hardware level snapshot operation, it takes long time to take >> a large backup data, and a lot of full-page-written WAL files are made. > > Does it? I have done it with fairly large databases without issue. You mean hardware snapshot? I know taking a backup using rsync(or tar, cp?) as a n online backup method is not so a big problem as documented. But it just take a long time if we handle a terabyte database. We have to VACUUM and other batch processes to the large database as well, so we don't want to take a long time to take a backup... Regards, -- Toru SHIMOGAKI<shimogaki.toru@xxxxxxxxxxxxx> NTT Open Source Software Center
