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Which Files to backup on NT server

By ngunity ·
I am trying to develop a more complete backup solution for my servers. Day to day I backup all my users home directories, and my Exchange Server, as well as a Database I have running on one of the servers.

I am not however backing up any system files or config e.g. DNS/ DHCP settings, or my user manager.

Could someone please give me a concise list of what I need to backup on an NT server, I am going crazy researching this and not finding one straight answer on WHICH directories and files I should backup on an NT server to facilitate a successful re-build with all my users, shares, and DNS/DHCP settings saved should the worst happen.

remember I want files/ folders/ registry keys, ERD practises that kind of thing, and all in one answer or link if the points are to be yours.

thanks

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Which Files to backup on NT server

by maxwell edison In reply to Which Files to backup on ...

Greetings,

I know you asked for specific files that should be backed up, and I also know that you won?t want to backup NT every time. But (and I?m assuming you have some networked destination for these files), why don?t you back up the whole thing the first time, and then do an incremental backup from then on? That way you?ll get ALL the system files that have been changed and/or added, you?ll keep the ones that have been deleted, and the files that haven?t changed will simply be passed over.

If you want more information on incremental backups, leave a comment or email me.

Regards,

Maxwell

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Which Files to backup on NT server

by ngunity In reply to Which Files to backup on ...

Thanks, am ok on the backup concepts, but really want to know what I need to backup

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Which Files to backup on NT server

by Stillatit In reply to Which Files to backup on ...

1. Periodically, back up everything (say once a month - once a week is better). Store these backups off-site.

2. Back up your user data as you are doing now. Make sure you have a fresh off-site set at all times.

3. As often as your paranoia/time balance allows, backup all files which have changed since your last backup. This can be easily accomplished by backing up everything with the archive bit set. If you are willing to keep (and restore from) all tapes between your full backups, clearthe bit when you do the incremental. If not, don't clear it (differential backup), but know that your backups will take longer as you get further from each full backup.


Logic:

There are two cases where you will need your backups. Case 1 is auser calls and has lost a file or directory, and can you restore it. For this, your current backups are fine.

Case 2 is the nasty one. If something hits the fan and your disk array catches fire, what will you do? In order to fully restore your NTsystem, you really need everything you have on it. You need to bring back everything as soon as you have replacement hardware, and the easiest way to do that is to do a quick NT install on the new hardware and then restore everything from tape so that your new disks have everything on them that your old disks did. The price of having piece-by-piece backups is that you have to restore each separate piece, and you might have missed something. You need a full backup using NT Backup or another utility that backs up EVERYTHING, including the files that NT itself has open, your Exchange server (if applicable), and so on.

Good luck.

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Which Files to backup on NT server

by ngunity In reply to Which Files to backup on ...

Appreciate the advice but I need specifics. I am hoping to stick to full backups as much as possible so I don't have to do a seven-tape restore.

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Which Files to backup on NT server

by Magetower In reply to Which Files to backup on ...

My answer will not be a complete solution but here goes:

1. Backing up shares is a good thing. Especially if there are a very large number of them. You can back these up by saving the registry key: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\LanmanServer\Shares

You want to make sure to back up the whole key as it contains the security settings for the shares also. Most good backup software should have the capability to backup specific registry keys. Unless you make lots of changes to the shares on your server you only need to back these up when doing a full.

2. DNS

I would definately look at backing up your DNS name files. These can be located in the C:\winnt\system32\DNS folder. If you use a lot of static DNS entries this is the way to go. You should only need to back up during a full.

3. DHCP

You can back up the DHCP database. It resides in the C:\winnt\system32\dhcp folder.
The problem is that DHCP can be kind of picky when restoring its database so I would HIGHLY suggest that you keep a record of the scopes, settings, and reservations somewhere safe.

4. WINS

No point. WINS is so dynamic it is easier to rebuild.

5. User database (SAM)

This is one way to do it but there may be others: Use the Repair Disk Utility to update repair info. This will place a copy of all the registries in the C:\winnt\repair directory. You can then backup this directory and/or create an ERD. The problem with creating the ERD disk using this utility is that if there are a large number software installed on the system the software._ file may be too large to fit on floppy and you will get an error.

This is a start others may have additional info.

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Which Files to backup on NT server

by ngunity In reply to Which Files to backup on ...

Just the kind of information I was after, if you have any more info or links with specifics for me I'd appreciate a lot.

thanks

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Which Files to backup on NT server

by ngunity In reply to Which Files to backup on ...

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