BackUp device for local or colo storage
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@DustinB3403 said:
Any recommendations on a product that can hold this. I haven't used any tapes in my experience.
Any WILL hold it, it just takes more tapes the bigger it gets. You would determine your tape technology choice off of your delta rate, not your full rate.
LTO is the tape technology you would use. Which model, LTO 3, LTO 4 or LTO 5 (or the upcoming LTO 6) would be what you need to choose.
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You will want an automated tape library, of course.
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Why is the backup SO large?
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Total space for our current server fleet (all inclusive,
drives and shares) is almost 6TB.So in trying to create a reliable way to backup everything, in full and hold it for a month we'd need 24TB of space. Cycled monthly. Ideally I'd like to avoid having to go through 100 or 200 tapes.
Even 10 seems like a lot to manage.
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1 Tape per week that can hold 8TB (for growth) of space by it's self would be a good option. But do they exist? I'm inexperienced with tape backup solutions.
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@scottalanmiller said:
Why is the backup SO large?
Because he's only using the tapes for full backups, done weekly.
The incrementals would all be local backup storage only.
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@DustinB3403 said:
1 Tape per week that can hold 8TB (for growth) of space by it's self would be a good option. But do they exist? I'm inexperienced with tape backup solutions.
Nope, you are quite far outside of the single tape size range.
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LTO 6 can store 6.25 TB uncompressed.
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Assuming you went with a tape solution, could you dump the backup storage server at the remote site?
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@Dashrender said:
@scottalanmiller said:
Why is the backup SO large?
Because he's only using the tapes for full backups, done weekly.
The incrementals would all be local backup storage only.
That doesn't explain why they need 22TB of total backup, though. I know companies twice that size that need like a few hundred GB total backup.
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Well the remote site hasn't been decided on. But if I had my choice it would be in Spain. A outreach office.
Or a colo somewhere in the US.
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@scottalanmiller said:
@DustinB3403 said:
LTO 6 can store 6.25 TB uncompressed.
And doesn't exist yet
Damn it....
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@DustinB3403 said:
Total space for our current server fleet (all inclusive,
drives and shares) is almost 6TB.This implies you have outgrown the usefulness of the model. Consider moving to a more modern architecture. Backing up standard Windows and application files over and over again is not good for backups and definitely not good for recovery.
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Yeah I figured that much Scott, but what other options are there really.
Two or Three LTO-3 tapes could certainly do the job, but is it efficient... (likely not)
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I was wondering if the need for full backups is really there? What's wrong with the incrementals only?
That's what I use. AppAssure is a one full backup incremental forever system. And my recover points span back much farther than 1 month. I have hourly for 2 days (from 7 AM to 6 PM - no changes at night), then daily for 2 weeks, then monthly for 1 year.
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@DustinB3403 said:
Yeah I figured that much Scott, but what other options are there really.
Two or Three LTO-3 tapes could certainly do the job, but is it efficient... (likely not)
You are into enterprise scale backup needs. This is how enterprise backup works.
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@Dashrender said:
I was wondering if the need for full backups is really there? What's wrong with the incrementals only?
That's what I use. AppAssure is a one full backup incremental forever system. And my recover points span back much farther than 1 month. I have hourly for 2 days (from 7 AM to 6 PM - no changes at night), then daily for 2 weeks, then monthly for 1 year.
Can you do incremental forever to tape? I don't believe so. He would need to hit the WAN. 8TB a day is pretty ridiculous to go over a WAN.
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@scottalanmiller said:
Can you do incremental forever to tape? I don't believe so. He would need to hit the WAN. 8TB a day is pretty ridiculous to go over a WAN.
Why would you need to send 8 TB a day via the WAN? He'd only send the changes daily via the WAN. And AppAssure supports that type of replication.
This is why knowing the daily delta would be important.
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@Dashrender My concern is only having 1 Backup of my vDISK from Xen might not be enough for recovery.
Should something happen to the file the guest VM is hosed (for recoverability). Having multiple backups seems more logical. But needs to be planned.
