Hi Folks, We have a requirement to deal with large databases of the size Terabytes when we go into production. What is the best database back-up mechanism and possible issues?
pg_dump can back-up database but the dump file is limited by OS file-size limit. What about the option of compressing the dump file? How much time does it generally take for large databases? I heard, that it would be way too long (even one or days). I haven't tried it out, though. What about taking zipped back-up of the database directory? We tried this out but the checkpoint data in pg_xlogs directory is also being backed-up. Since these logs keeps on increasing from day1 of database creation, the back_up size if increasing drastically. Can we back-up certain subdirectories without loss of information or consistency..? Any quick comments/suggestions in this regard would be very helpful. Thanks in advance, Ravi Kumar Mandala
