Heikki Linnakangas schrieb:
apoc9009 wrote:

"Without datalosses" is utopy. For that, you'd need something like
synchronous replication, otherwise you're always going to have a window
where you have something committed in the server, but not yet in the
backup. So it's just a question of how wide that window is, how much
data loss can you live with.

With file-based log shipping, you can get down to 1 second, by using the
archive_timeout setting. It will produce a lot of log files with very
little content in them, but they will compress well.
Yes, it is possible but not recommended . My Backup Servers Filesystem will explode :D

The record-based log shipping will give you a very narrow window, down
to < 1 second or even less if you're willing to poll the server that
often, but requires some custom development.
Correct, but this is not good enought and i think there are a lot of Peoples having the same Problem. It was wishfull, having a Online Streaming Backupsubsystem, thadt can produce portable Backupdatabases,
to prevent users for Millions of Archive Files on the Backup FTP-Server.

My Ideaa is the following Folder Structure:


Backup 12/24/2007 Version 1
/pg/backup/12_24_2007/base/rcvry.rcv  <--- Basebackup
/pg/backup/12_24_2007/changes/0001.chg  <--- Changed Data
                                     /changes/0002.chg  <--- Changed Data
                                     /changes/0003.chg  <--- Changed Data

Backup 12/24/2008 Version 2
/pg/backup/12_24_2008/base/rcvry.rcv  <--- Basebackup
/pg/backup/12_24_2008/changes/0001.chg  <--- Changed Data
                                     /changes/0002.chg  <--- Changed Data
                                     /changes/0003.chg  <--- Changed Data
                                     /changes/0010.chg  <--- Changed Data

/changes/0001.rsf <--- Recovery Stripeset File (10 MByte) addon of Basebackup
                                     delete *.chg
if a Stripeset of 10 *.chg Files exist, they should be converted or merged
to one greater Recovery Stripe File (*.RSF)

Things to do:

1.A Integradted FTP-Client to the Postmaster Process
2.Online Streamingbackup Logic inside the Postmaster


---------------------------(end of broadcast)---------------------------
TIP 1: if posting/reading through Usenet, please send an appropriate
      subscribe-nomail command to [EMAIL PROTECTED] so that your
      message can get through to the mailing list cleanly

Reply via email to