Microsoft Office Tutorials and References
In Depth Information
Integrity of backups and testing restore
Local backups are nice in many ways, an example would be that a user deletes a file
in the afternoon that was there that same morning and simply needs to restore the
file. With a local backup you can do a fast restore. When a user needs a restore they
don't want to hear that a tape or disk needs to be mailed to the office or you have
to wait for the download to finish pulling down the backup data. This would take
too long and the offsite backups will take some time to retrieve. But what happens
if the office burns down taking the disk or tapes with it? You won't have the backup
to restore from and will be out of luck. Having an offsite backup would protect
you from such a scenario. You would simply have the offsite disk or tapes sent
to you or pull down the data from your offsite backup provider. The best backup
plans combine local and offsite backup. This gives you the option to restore fast but
protects you if something happens to your physical office.
Integrity of backups and testing restore
It is extremely important to check your backups and perform test restores. You
do not want to find out that your backups are no good when it is crunch time and
someone is depending on you to restore some data. Things can happen such as
your media goes bad. Tapes can deteriorate and hard drives die and you want to
be prepared if this happens. It is recommended that you verify your backups by
running verification after backing up. DPM only supports verification for tape
backups and for protection Exchange. Microsoft may add this feature in the future.
The best way to test a backup is by doing a restore of it. You can restore over
production but this is not recommended. It is recommended that you restore to a
different location or maybe a duplicate virtual copy of a production server. You do
not want to restore to your production servers and find out the data is bad. It is a
good idea to check the backup on an ongoing basis. Make performing test restores
a regular habit. The more frequent your back ups are, the more often you want to
check the backups. No matter what your backup frequency is, it is recommended
that you run a verification and do a restore once a week.
Data privacy and security
In recent years, many new compliance and data retention laws have been introduced
in the IT industry. These laws continue to become more complex every year. Your
company may or may not be susceptible to all or some of these laws. It is your job to
find out what laws pertain to your business. Many times HR and legal departments
are a great resource for this. You should also be concerned with security, privacy,
and retention of the data you are backing up. Here are a few of the data regulations
out there:
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