Is it safe to stop postgres in between pg_start_backup and pg_stop_backup?

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От Jacob Scott
Тема Is it safe to stop postgres in between pg_start_backup and pg_stop_backup?
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Msg-id CA+yM-qbtP9SV=qBYjEtP-r41+R5QcoVPwGO-CNnYdXFn-VFDHQ@mail.gmail.com
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Ответы Re: Is it safe to stop postgres in between pg_start_backup and pg_stop_backup?  (Steven Schlansker <steven@likeness.com>)
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Hi, 


Does upgrading a a disk being used by postgres (9.1, on Ubuntu) with the following process sound safe?
  1. pg_start_backup
  2. Take a filesystem snapshot (of a volume containing postgres data but not pg_xlog)
  3. Bring a new higher performing disk online from snapshot
  4. pg_ctl stop
  5. switch disks (umount/remount at same mountpoint)
  6. pg_ctl start
  7. pg_stop_backup
This seems like an odd use case because pg_start_backup is designed for performing on-line backups, but I think it will give me minimum downtime.

Thanks,

Jacob

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