LTO-1 to LTO-4 Migration

15 pts.
Tags:
LTO
LTO tape library
Retrospect
SCSI
Tape backup
Tape storage
We are an audio post production facility in the LA area. Currently we archive our finished work to LTO-4 using a tape library (Dell TL-4000) and Retrospect. We also have a Fibre LTO-4 drive and a SCSI LTO-3 drive. One of our clients has +/- 1,000 LTO-1 tapes with audio data as well as other data that they would like to migrate to LTO-4 and have asked us to help. This may not be a simple 1 to 1 migration as we may need to organize the data prior to outputting to new LTO-4s. I'm researching the best most efficient way to go about this. Ideally using the gear we have, but we are open to purchasing other devices and/or software if the price point to increased efficiency is worth it.  Any ideas would be much appreciated. Thanks Ken

Software/Hardware used:
Dell TL-4000 w/ Retrospect

Answer Wiki

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OK first off LTO4 drives cannot read LTO1 tapes, but the LTO3 can.

Next if the client also uses Retrospect then fine, if not you will need a copy of the program they use so the client can read the new LTO4 tapes.

From past experience I think that it is fine to just copy the data as is without modifcation.

The last thing is if Rettrospect or whatever application they use can do a tape to tape copy. If so you just copy straight from the LTO1 to LTO4 tapes. Otherwise it will be necessary to restore it all and then back it up again.

I think it is better to not do a one to one copy, instead take advantage of the increased capacity (1 LTO4 should fit 8 LTO1 tapes).

Use barcodes for the tapes and use that for a catalog of which LTO1 tapes are on which LTO4s.

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