Matt Pessolano
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Backing up network?
I have around 501 Gb of data to backup. 90% is documents on a file server, the rest is exchange stores and system states. I am using an LTO3 tape backup. Its an external drive. It currently tapes almost 1 day to backup everything. I am using backup exec 10.0d. I would like some suggestions on ways to break this backup up so I can still have reliable backups and not have the backup run all day long.
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Brian Pierce
There as a good description of the backup types at http://www.backup4all.com/backup-types.php
Thansk for the clarfication KCTS :)
Also don't backup anything that you have to reinstall anyway. There is generally no need to backup the OS if your recovery plan is to reload the OS and apps before restoring data. In the grand scheme of things, its not that much but every little bit helps.
For your Exchange stores, do an incremental every day and a full once a week. The incrementals will keep you from having to rebackup the transaction logs each day, which is what happens with a differential backup of Exchange. In Exchange online backups full and incremental backups delete all of the transaction logs that were in existance when the backup began. Since differentials don't delete the T-logs, you are adding that much more data to the backup each day.
I personally rather use differentials for file systems. Its easier to restore. I never trust tapes (sorry old dog whose seen tape backups become disasterous restores). The fewer tapes you have the better. My opinion only!
For your Exchange stores, do an incremental every day and a full once a week. The incrementals will keep you from having to rebackup the transaction logs each day, which is what happens with a differential backup of Exchange. In Exchange online backups full and incremental backups delete all of the transaction logs that were in existance when the backup began. Since differentials don't delete the T-logs, you are adding that much more data to the backup each day.
I personally rather use differentials for file systems. Its easier to restore. I never trust tapes (sorry old dog whose seen tape backups become disasterous restores). The fewer tapes you have the better. My opinion only!
ASKER
i think i got a decent plan down. using full and differential backups. I do have room to do a disk to disk backup as well. Do you guys recommend that? Im just worried that doing a disk to disk backup will beat on those disks to much and i will have a problem down the road..thoughts?
They're just doing what they are designed to do!
Backup to disk is good if you have the space. From there, Vertias should be smart enough in version 11d to be able to do a clone to tape. This gives you the fastest throughput for backups with the least tape abuse, i.e. scrubbing the tape back and forth waiting for data. My understandign the 'scrubbing' is death to drives and tapes alike.
I'd actually recommend putting into the budget a tape library along the lines of a ten-tape LTO carousel. Change tapes weekly.
The backup strategy I recommend with a carousel is thus:
Four weeks of tapes.
Full on Friday, for as long as it takes.
Differentials Monday through thursday
Take the friday full backup of the month and send off-site permanently.
Depending on the rotation and how many tapes a full takes, expect to spend a fair chunk money to get this into place. Auditors - especially SOX and SAS70 - love this strategy.
HAND
MidnightOne
I'd actually recommend putting into the budget a tape library along the lines of a ten-tape LTO carousel. Change tapes weekly.
The backup strategy I recommend with a carousel is thus:
Four weeks of tapes.
Full on Friday, for as long as it takes.
Differentials Monday through thursday
Take the friday full backup of the month and send off-site permanently.
Depending on the rotation and how many tapes a full takes, expect to spend a fair chunk money to get this into place. Auditors - especially SOX and SAS70 - love this strategy.
HAND
MidnightOne