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тАО02-16-2011 08:15 PM
тАО02-16-2011 08:15 PM
size of the data in tape.
Please provide the commands to find.
1 size of the data inside the tape inserted on tape drive.(how much data occupied on tape)
2 capacity of the tape inserted on tape drive.(how much data it can accomedate maximum)
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тАО02-16-2011 09:35 PM
тАО02-16-2011 09:35 PM
Re: size of the data in tape.
uname -a
If your tape drive is compressing the data,
then none of these data may be available or
useful.
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тАО02-16-2011 10:05 PM
тАО02-16-2011 10:05 PM
Re: size of the data in tape.
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тАО02-17-2011 01:00 AM
тАО02-17-2011 01:00 AM
Re: size of the data in tape.
What tool did you use to write the tape?
For something like DP, there maybe a GUI button that tells you this info.
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тАО02-17-2011 02:20 AM
тАО02-17-2011 02:20 AM
Re: size of the data in tape.
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тАО02-17-2011 07:39 AM
тАО02-17-2011 07:39 AM
Re: size of the data in tape.
#mt -f
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тАО02-17-2011 09:10 AM
тАО02-17-2011 09:10 AM
Re: size of the data in tape.
1 size of the data inside the tape inserted on tape drive.(how much data occupied on tape)
Nearly impossible to discern if you do not tell us what software you're using/you've used on the tape.
If the tape format is TAR, then you can do a series of mt and tar combos:
mt -f /dev/rmt0mn rew
tar tvf /dev/rmt/0mn
mt /dev/rmt0mn fsf 1
tar tvf /dev/rmt/0mn
Until you hit EOT
Then sum up the file sizes. Note it will give you only an estimate though if compression was used on the tape and the type of data backed up.
2 capacity of the tape inserted on tape drive.(how much data it can accomedate maximum)
Generally - mt -f /dev/rmt0mn stat
will give you the type of media loaded - DDS4 - will give you 72GB native/140GB compressed, LTO4 - 800GB native/1.6 TB compressed, etc, etc (see www.lto.org and ww.dlt.org for the capacities of various DLT and LTO media)
Note too that the compresses capacity assumes a mix of half ASCII and half non-ASCII data backed up.