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- Path: ernst.oulu.fi!not-for-mail
- From: eha@ernst.oulu.fi (Esa Haapaniemi)
- Newsgroups: comp.sys.amiga.hardware
- Subject: Re: TAR, BTNtape and HP35470A DAT Drive
- Date: 15 Mar 1996 11:51:36 GMT
- Organization: University of Oulu
- Message-ID: <4iblk8$4a7@ousrvr3.oulu.fi>
- References: <3145B779.58B7@bart.nl> <3146B9B4.2781E494@sh.bel.alcatel.be>
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-
- Evert de Vos (vosev@sh.bel.alcatel.be) wrote:
- : Job Hanssen wrote:
- :
- : > I've managed to setup everything and it does work, but it's slow as
- : > hell, although the drive only stops a few times while backing up about
- : > 1,6 gig. This takes almost 3 houres!
- :
- : Yo, I have the same DAT Drive and the docs say that it can
- : handle 11MB/min maximum so the fastest time for 1.6GIG is
- : 1600MB / 11MB = 145 mins = 2:25 hours. So 3 hours doesn't
- : seem slow to me!! After all, 1.6GIG _IS_ a lot.
-
- I have (as a root) taken backups of our SGI and it is pretty normal
- that I start the tar script at 16:00 just before leaving and have it
- finished before next morning... Fortunately my Amiga multitasks as
- well as my SGI:s ;)
-
- : > I have no idea what the 'blocksize' and 'number of blocks' do. I just
- : > used the numbers used in examples.
- :
- : I don't know that much about blocksize, but I know that amiga normally
- : uses 512 bytes for a block, and unix normally uses 20kb for blockes
- : like the docs say. So if you want to read a tape from a unix workstation
- : with your amiga, you probably need to use 20kb for the blocksize.
-
- I had not problems in reading several QIC-150 tapes with my Amiga that the
- SGI's barfed at. There were no options that could have given me the reading
- of tose tapes on QIC station on SGI, so I had to copy the files (230 M)
- from those tapes to my Amiga first and then back to DAT that was finally
- readable on SGI.
-
- The tar is really excellent system ;)
-
- Esa Haapaniemi
- University of Oulu
- Department of Chemistry
- Finland
-