NO,
veritas doesn't support the native backward read-compatability of SDLT drives
with DLT IV media
If you must restore from DLT media you must change the density SDLT drive to
match the dencity of the DLT media.
OR you can configure an old DLT700 drive as standalone only for the
restore(spesial storage unit isn't needed)
stefanos
> -------Original Message-------
> From: Michael F Lavelle <Michael.F.Lavelle AT abbott DOT com>
> Subject: [Veritas-bu] Configuring a DLT 220/320 to Read DLT IV Media
> Sent: 29 Oct '05 19:26
>
> 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
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