Quote:
Originally Posted by ctroyp
What method would be best for this?
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Hate to be obtuse, but it depends on what you're trying to do. If the 200GB of data you have is always changing in the same directory/partition/drive, you can just copy the data over, using CP or TAR, if you want a low-tech solution.
If things change all over the system, all day, you might want to use RSYNC to keep the primary and 'backup' drives sync'ed up.
I'm not sure what you're doing, but if you have enough traffic and data to generate 200 GB of changes/new data per day, you'd be well served to look into a robust backup system. Amanda, Bacula, and Arkeia make some good products. Network backups are used often in medium-to-large enterprises, and if you're running at least 100MB/s (even most small home networking routers are gigabit these days), 200GB should back up fairly quickly. It's best to stick a second NIC into your systems, though, so all your backup traffic is totally away from your production traffic, so one won't impact the other. This will also let you get away without configuring QOS on your switches, to throttle network traffic during your production window, if things run long.
I would be sure to do several things:
- Dedicated NIC and network segment/VLAN just for backup traffic
- Multiple tape devices, of good quality.
- Brand-name tapes and cleaning supplies (off brands are usually cheaper here for a reason)
- Dedicated backup server to host the tape devices
- Use Mondo to generate some 'bare-metal' restore ISO's, (and fling some $$$ their way, too, if you use their awesome software).
If you really want to be anal, and be sure things work, get another system (can be low-end, too, since you're not testing speed, but functionality), and see how long it takes to restore your primary environment, and what you need to do, to do it.. Document the crap out of everything, since the problem you deal with during a restore won't be fresh in your head in a year. This way, when you have a failure, and you're REALLY under the gun, you'll know what to do, when, and with what. And be sure to UPDATE those docs as your environment changes.
Is all that a pain in the rear? You bet....but wasting a day or two every six months is cheap insurance.