Results 1 to 8 of 8

Thread: [SOLVED] Regarding Network Edition Backup and Restore

  1. #1
    bhwong is offline Elite Member
    Join Date
    Feb 2009
    Location
    Singapore
    Posts
    499
    Rep Power
    6

    Default [SOLVED] Regarding Network Edition Backup and Restore

    Hi,

    Let me know if my assumption is correct. The network edition contain a daily backup that will backup everything, including calendar, tasklist, documents and briefcase. And a new backup will always replace previous day backup.

    This mean if a file is deleted today, the file can still be recover from yesterday backup, but if the next backup get activated, the file will be gone for good. Am I right?

    Also, is it possible to restore just a file from the backup or the whole account will be completely replaced by yesterday backup?

    Thanks,
    Boon Hong.

  2. #2
    bdial's Avatar
    bdial is offline Moderator
    Join Date
    Jul 2007
    Location
    Baltimore
    Posts
    1,649
    Rep Power
    11

    Default

    i think the default backup schedule is to run a full backup on friday, and then an incremental backup every other day. This doesn not overwrite any previous backups. So on friday it backs up everything belonging to every account. Then saturday it only backs up what has changed since the friday backup ran. Then sunday it backs up what's changed since the saturday incrmeental ran, and so on and so on. Then the following friday it will repeat the cycle. It will not overwrite hte previous backup though. So you will have full backups for the past 2 weeks.

    When you go to restore you can restore an account to any time as long as you have the corresponding full backup and incrementals leading up to the target date. So say it's thursday, and you need to restore an account to how it was on wednesday. You need the full backup from friday as well as th e incremental backups for sat, sun, mon & tuesday. By default you'll have them in your /opt/zimbra/backup and the restore utility will find them

    you only have 2 options when restoring an account. restore it to the original username, or restore it to a different username. If you're restoring a deleted user then usually you'll use the first option, but if you're trying to restore maybe deleted data from an active user you won't want to do the first option because they'll lose anything they got after the date you restore them to. So you'd want to restore to another account and then get whatever you need from that other account and then delete it.

  3. #3
    y@w's Avatar
    y@w
    y@w is offline Moderator
    Join Date
    Jan 2008
    Posts
    658
    Rep Power
    8

    Default

    No, backups don't overwrite each other. If you go into /opt/zimbra/backup, there should be a backup for each day of the last 30 days. By default, Zimbra keeps 30 days worth of backups.

    Backup and Restore

    Unfortunately, you do have to restore a full account, not just an item from their mailbox. I was pretty sure that there's an open bug for supporting restoring individual items out of a backed-up mailbox but I can't seem to find it.

  4. #4
    bdial's Avatar
    bdial is offline Moderator
    Join Date
    Jul 2007
    Location
    Baltimore
    Posts
    1,649
    Rep Power
    11

    Default

    Quote Originally Posted by y@w View Post
    Unfortunately, you do have to restore a full account, not just an item from their mailbox. I was pretty sure that there's an open bug for supporting restoring individual items out of a backed-up mailbox but I can't seem to find it.
    Bug 8849 – More Granular Restore: per folder & per-message

  5. #5
    bhwong is offline Elite Member
    Join Date
    Feb 2009
    Location
    Singapore
    Posts
    499
    Rep Power
    6

    Default

    Thanks for the replies. So how long does the backup keep? 2 weeks or 30 days?

    I checked the backup log and notice that Zimbra actually do full and incremental backup quite randomly. Sometimes it will do full backup with a few incremental backup in between, sometimes it will do full backup the next day after a full backup without any incremental backup. Is there a way that we can control this backup process?

  6. #6
    bdial's Avatar
    bdial is offline Moderator
    Join Date
    Jul 2007
    Location
    Baltimore
    Posts
    1,649
    Rep Power
    11

    Default

    zimbra will do a full backup when a new user is added. so if you add a new user on tuesday it will do a full of that user and an incremental of every other user

  7. #7
    LMStone's Avatar
    LMStone is offline Moderator
    Join Date
    Sep 2006
    Location
    477 Congress Street | Portland, ME 04101
    Posts
    1,373
    Rep Power
    10

    Default

    And if you just need to restore one or two emails, restore the mailbox to a new mailbox, forward the desired emails to the current mailbox, and then delete the restored mailbox.

    Hope that helps,
    Mark

  8. #8
    bhwong is offline Elite Member
    Join Date
    Feb 2009
    Location
    Singapore
    Posts
    499
    Rep Power
    6

    Default

    Thanks for all the great answers!

    I will vote for the bug 8849.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Restore specific network edition backup
    By sdemeyer in forum Administrators
    Replies: 5
    Last Post: 09-07-2008, 09:04 PM
  2. Zimbra 5 Network Edition, Backup & restore question
    By gilus in forum Administrators
    Replies: 0
    Last Post: 05-12-2008, 10:11 AM
  3. Change backup destination (network edition)
    By kevinpaz in forum Administrators
    Replies: 4
    Last Post: 12-13-2007, 10:42 AM
  4. zimbra backup and restore - open source edition
    By kmuralidharan in forum Administrators
    Replies: 5
    Last Post: 08-23-2007, 08:37 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •