02-02-2009
Did you try blocksize of 0? This (I think) tells it to use variable blocksizing, which might be what your data is stored in.
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1. HP-UX
can any1 tell me how to make ignite tapes for the HP-ux.
this company said it was: "make_tape_recovery_A", but that don't work. (4 Replies)
Discussion started by: JBX
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2. UNIX for Dummies Questions & Answers
is there a command to check unoccupied space on a tape ?
AIX 3.2 (1 Reply)
Discussion started by: cubicle^dweller
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3. UNIX for Dummies Questions & Answers
:confused:
Hello!!
I am a new UNIX user, and I need to back up some files, I have some old ones and I have been trying to delete the old information with 'mt erase' but I don't be sure if it works, and 'mt resert' but the it gave a message suggesting me to use 'scsiha -r' (but the last one... (1 Reply)
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4. UNIX for Advanced & Expert Users
Hi,
I think this issue should be posted in a backup box, but there wasn't .
We have an issue that we made a backup on a DLT7000 tape using tar. Ones we check using : tar tvf /dev/rmt/0
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5. Solaris
Hii alll
Thanks for the support, iam facing a problem regarding tanberg sdlt . iam trying to connect tanberg sdlt 160 to sun fire 880 r .As SUN FIRE DOSENT HAVE SCSI CONTROLLER IAM CONNECTING A ULTRA 2 SCSI CONTROLLER IN PCI SLOT AND FROM THERE IAM CONNECTING THE TANBERG SDLT 160.
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6. HP-UX
Greetings
I looking for the drivers for an sdlt tape drive for hp-ux 11.0. I think the drivers i need are stape and tape2 does anyone know where i can get them
Thanks
Alan (2 Replies)
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7. HP-UX
I have a bunch of 4 mm DDS tapes that have two partitions. I read them on my HP-UX 10.20 box by referencing the device files /dev/rmt/0m (partition 0) and /dev/rmt/0mp (partition 1). Unfortunately, my HP-UX box was lightning struck last week so now I'm trying to read these tapes using Unix Services... (2 Replies)
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Hi Community,
I've a V440 Sun Server with 2 device tape of 72GB. I have to backup a folder of 80 GB, so I have to use 2 tapes of 72GB (144 GB);
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9. AIX
Hello, anybody out there that is using itdt to manage tape changes in a tape library. The help of itdt show a move subcommand but I can't get it to work.
Env:
AIX5.3
Dell PowerVault TL2000 tape library -> rmt1 Available 01-08-02 IBM 3580 Ultrium Tape Drive (FCP)
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HT(4) Kernel Interfaces Manual HT(4)
NAME
ht - RH-11/TU-16 magtape interface
DESCRIPTION
The files mt0, mt1, ... refer to the DEC RH/TM/TU16 magtape. When opened for reading or writing, the tape is not rewound. When closed,
it is rewound (unless the 0200 bit is on, see below). If the tape was open for writing, a double end-of-file is written. If the tape is
not to be rewound the tape is backspaced to just between the two tapemarks.
A standard tape consists of a series of 512 byte records terminated by a double end-of-file. To the extent possible, the system makes it
possible, if inefficient, to treat the tape like any other file. Seeks have their usual meaning and it is possible to read or write a byte
at a time. Writing in very small units is inadvisable, however, because it tends to create monstrous record gaps.
The last octal digit of the minor device number selects the drive. The middle digit selects a controller. The initial digit is even to
select 800 BPI, odd to select 1600 BPI. If the 0200 bit is on (initial digit 2 or 3), the tape is not rewound on close. Note that the
minor device number has no necessary connection with the file name, and in fact tp(1) turns the short name x into `/dev/mtx'.
The mt files discussed above are useful when it is desired to access the tape in a way compatible with ordinary files. When foreign tapes
are to be dealt with, and especially when long records are to be read or written, the `raw' interface is appropriate. The associated files
may be named rmt0, ..., rmt7, but the same minor-device considerations as for the regular files still apply.
Each read or write call reads or writes the next record on the tape. In the write case the record has the same length as the buffer given.
During a read, the record size is passed back as the number of bytes read, provided it is no greater than the buffer size; if the record is
long, an error is indicated. In raw tape I/O, the buffer must begin on a word boundary and the count must be even. Seeks are ignored. A
zero count is returned when a tape mark is read; another read will fetch the first record of the next tape file.
FILES
/dev/mt?, /dev/rmt?
SEE ALSO
tp(1)
BUGS
The magtape system is supposed to be able to take 64 drives. Such addressing has never been tried.
Taking a drive off line, or running off the end of tape, while writing have been known to hang the system.
If any non-data error is encountered, it refuses to do anything more until closed. In raw I/O, there should be a way to perform forward
and backward record and file spacing and to write an EOF mark explicitly.
HT(4)