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тАО09-29-2000 01:58 AM
тАО09-29-2000 01:58 AM
DDS3 an d UX11
can someone advise me how to create an dds3- devicefile in UX11 ? All i found is dds2....
Thanks in advance
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тАО09-29-2000 02:01 AM
тАО09-29-2000 02:01 AM
Re: DDS3 an d UX11
If the hardware is installed, then an ioscan should create the device file automatically.
...JRF...
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тАО09-29-2000 02:15 AM
тАО09-29-2000 02:15 AM
Re: DDS3 an d UX11
I have seen better troughput with DDS2- devicefile vs. 0m. May be there is much more troughput with DDS3- devicefiles than DDS2.
Regards
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тАО09-29-2000 02:15 AM
тАО09-29-2000 02:15 AM
Re: DDS3 an d UX11
I suspect that the drive will do that anyway if you use a DDS-3 format tape.
The BEST device files (or the ?m links) will do the best job. The DDS options are for writing older tape formats.
What are you trying to achieve?
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тАО09-29-2000 02:55 AM
тАО09-29-2000 02:55 AM
Re: DDS3 an d UX11
mksf -C tape -d stape -H
The option -n is used to create a non-rewinding device file. Leave out -n to create a second (rewinding) device file.
/dev/rmt/c?t?d?DDS3n is just a proposal. Replace the question marks by the proper values. You'll get the proper values from the device files that were already created and used by the system.
This works on HPUX 10.20. It should also work on HPUX 11.x. Check the man page of 'mksf' to see if I am right.
Of course, you should use the DDS3 device file only if you have a DDS3 or DDS4 drive.
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тАО09-29-2000 03:19 AM
тАО09-29-2000 03:19 AM
Re: DDS3 an d UX11
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тАО09-29-2000 06:19 AM
тАО09-29-2000 06:19 AM
Re: DDS3 an d UX11
Take this the next step. Did you have different devices for your DDS2 120meter tapes than you did with your DDS2 60meter tapes? How about that, you still had a capacity difference! This is because the Hardware dictates much more than the device file.
The only place it may make a difference is in a backup app, like OmniBack, Legatto, etc... where tape sizes are used for a multitude of reasons, but usually Estimating capacity" Even these must bow to the almighty hardware. I.E. I tell Omniback that my DLT8000 tapes are 120GB. Usually they end at 60-70GB and Omniback shows the tapes at full. If I tell Omniback that they are 20GB, it will only write 20GB and say the tape is full. :)
Best regards,
Shannon