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DDS4 write to a 90m

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Lisa Mauer
Regular Advisor

DDS4 write to a 90m

Don't ask why - but we need to write a tape from a server that has a DDS4, and we need to write to a 90m tape... Anyone know of a way to create a device file using a lower density to get this to work? Realizing this isn't supported, but thought maybe someone found a back door.....
Thanks!
5 REPLIES
Marino Meloni_1
Honored Contributor
Solution

Re: DDS4 write to a 90m

I thik that you had to use at least a DDS3, in order to write a DDS1 format

http://www.hp.com/products1/storage/products/storagemedia/tape_dds/compatibility.html
Leif Halvarsson_2
Honored Contributor

Re: DDS4 write to a 90m

Hi,
You can try with:
mksf -C tape -H -b DDS1

But I am not sure if it works.
Michael Tully
Honored Contributor

Re: DDS4 write to a 90m

Try it this way:

e.g.

# mksf -C tape -H -b DDS1 -c1 /dev/rmt/?m

The man page for 'mksf' explains these options, but doesn't show an example. I did thsi with DDS2 tape a few weeks ago and worked fine.

Regards
Michael
"When I have trouble spelling, it's called fat finger syndrome"
Anyone for a Mutiny ?
Vincent Farrugia
Honored Contributor

Re: DDS4 write to a 90m

Hello,

The DDS4 tape drive is only backward-READ-compatible to 90m tapes. You can try Michael's suggestion, but I'm not sure it will work, knowing the above statement. For DDS2s it should work, but I doubt for DDS format.

HTH,
Vince
Tape Drives RULE!!!
Lisa Mauer
Regular Advisor

Re: DDS4 write to a 90m

Thanks for all the responses! I have tried about everything, guess I'll be using a DDS3 or remote to another server :) Thanks again!