Hi,
A few weeks ago I pulled the last two DLT 7000 drives from a couple of STK L700 libraries. I had not been recording data on these two drives since mid-July, though I do have monthly fulls with 7 month retention sitting on DLT IV media the DLT 7000 drives had been using. The remaining SDLT 220 drives in the L700 libraries have a dedicated metal in gap (MIG) read head specifically to read DLT IV media. I felt brave at the time. I felt I could figure out how to read DLT IV media with the SDLT 220s thru NetBackup if a restore request came in.
Guess what happened? :-)
OK, I can't find anything in the documentation on how to support backward read capability of newer drive types which support older media types. Remember, backward read-compatability also applies to LTO drives & media, so this is a forward-going issue.
I contacted Symantec support. God bless Australia, but the support tech suggested lying about the media type by using "vmchange -new_mt dlt2 -m L30022". This experiment failed:
mounting L30022
error requesting media TpErrno = Requested number of drives are not configured
following files not restored....
Does anyone know how NetBackup can support the native backward read-compatability of SDLT drives with DLT IV media?
Michael F. Lavelle Abbott Labs,
Sr. Storage Engineer, CIT 100 Abbott Park Rd, AP14B-1
Ph: 847.937.1195 (Page:389.5746) Abbott Park IL 60064-6042
- [Veritas-bu] Configuring a DLT 220/320 to Read DLT IV Me... Michael F Lavelle
