Can anybody suggest what kind of backup should I use for backup of 10TB
data on the RAID array. Before we had Only 1TB than I was using external
USB disks for backup. Full backup one time per week and incremental
everyday.
I am really lost now.To backup 10TB I need 10 USB disks, it is almost
nightmare.
Any better cheap solutions????

MarcusB

"MarcusB" <marcus@msl.ll.se> wrote in message
news:ezkTj4PlIHA.5956@TK2MSFTNGP03.phx.gbl...
I can't help with the storage requirement, although presumably you could try
compressing the disks. How much compression you get will of course depend
very much on the type of data. You might find that if you are using say 2TB
of your 10TB array that you might be able to get away with backing up to a
single 1TB disk. If you can (for now) then be sure to keep an eye on it.

As for time, are these system files that you are backing up, database files
or documents? A system backup requires ntbackup or the equivalent, so no
shortcuts there that I know of. Similarly a database backup needs to be done
via the appropriate database utilities and again probably require a full
backup of the databases. If however the bulk of what you are backing up are
normal files then you can get away with the equivalent of an "xcopy /d" to
copy to the external disk just those files that are new or have changed.
After the first backup this will substantially reduce the amount of time
required because (again in most instances) very few files change from week
to week. If you want to take this a step further and delete the files from
the backup that no longer exist on the source then a utility such as crycopy
(http://www.cryer.co.uk/downloads/crycopy/CryCopy.zip - sorry no formal
write up yet) might do what you need (although it does allow for copying
across disks).

Hope this helps. Lots of data is always a pain for backup. Whatever you do
be sure to maintain at least one full backup off site always (hence media
for two or three complete backups as a minimum).
--
Brian Cryer
www.cryer.co.uk/brian

Hi and thanks for your suggestions.
All data are users data. We have 2000 users and every user have 5GB
quota on the server. So far users have 7TB data. Next year we will have
5000 users and the amount of data will rise to more than 25TB. I have
problem with backup now, and what it will be in the future.
So far I have second array of disks for backup in the another room i the
another building. But how to have such big amount of data off line??????
When I started working at the company there was only 100 users and I
used to make backup to the external USB drives, and I was keeping some
drives off line.
We are Non profit organization thus we do not have so much money for
very expensive solutions. Any more suggestions???


MarcusB


Brian Cryer wrote:

Hi Marcus,
You might look at a couple of things:
- Analysis of the data to see what it is: what type, what age etc.
- Archiving of unused data to secondary storage (where it does not need to
be continually backed up)
That could reduce your online storage and your regular backup by a very
large amount. No point in providing expensive technology for worthless data,
Anthony,
http://www.airdesk.co.uk




"MarcusB" <marcus@msl.ll.se> wrote in message
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