[EMAIL PROTECTED] wrote:
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.
Please ask in the correct forum, either pgsql-general or pgsql-admin.
This list is strictly for discussion of development of postgres, not
usage questions.
(If all you need is a pg_dump backup, maybe you could just pipe its
output to something like 'split -a 5 -b 1000m - mybackup')
cheers
andrew
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