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EastCoastGuy
245 pts.
 LTO 5 architecture question
Backup, LTO, LTO5, Tape Backups
We have approx 10TB we backup to disk and then to LTO1 tape drive system with 4 drives. What's the opinion on a setup with LTO5 in this enviornment. Given it's speed should I even use disk to disk backups? Deduplication isn't a need.

Software/Hardware used:
Netbackup
ASKED: August 31, 2010  3:38 PM
UPDATED: September 1, 2010  11:44 PM
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I do recommend the move to LTO5. However a point to consider is that the LTO5 drive cannot read the LTO1 tapes, so the data will either have to be migrated to LTO5 or keep a LTO1 around. Initially I would keep the backup configuration the same, just simply swap to LTO5. Then run test jobs directly to tape as well as test restores. How often and quickly restores are needed is a big factor in deciding to go direct to tape or not. If tape is kept in house it might not be much of a difference but if tape is sent off site that would be a big factor in keeping backup to disk. After you have the data from the tests then you are in a better position to decide to go directly to tape or not.
Last Wiki Answer Submitted:  September 1, 2010  8:03 pm  by  Davidmichel   570 pts.
All Answer Wiki Contributors:  Davidmichel   570 pts.
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I can’t answer your question because I don’t know anything about your timings. However, as you possibly have seen elsewhere, there are other sites that have done the same kind of thing. The speeds of some current tape subsystems and technologies exceed what is often achieved by save-to-disk strategies.

You might be the only one who can make a definitive determination for your environment. There are variables that can affect the results.

Tom

TomLiotta
 108,055 pts.