dump on one 8mm tape drive not readable by another 8mm drive ?

dump on one 8mm tape drive not readable by another 8mm drive ?

Post by Donald Campbe » Sun, 29 Jan 1995 06:30:27





Quote:> Hi:
> We are running Solaris 2.3

> I have two questions:

> 1.  I use ufsdump to backup file systems on an external tape drive (it's a
> Contemporary *netics 8mm drive). I have another external drive
> (by Unison Information Systems, also 8mm). I use ufsdump as:

> ufsdump 0ufbsd /dev/rmt/0cbn 126 6000 54000  <disk-device>

> After doing a backup on one drive, and putting tape in the other drive,
> ufsrestore shows the header and epoch info. but then says:

> can't find dump file

> Does the drive matter ? why ? How do we know what drives are compatible.

> 2. After restoring a file system or directories from the tape, I notice
> that the sizes of directories are smaller then the original sizes
> in the file systems i.e. instead of usual 512 they show diff. values
> like 37, 38 etc. Why is it so ? Is it of any concern ?

> Any pointers ?
> Thanks

> Atiq Hashmi.

Regards
Donald Campbell   [ SueDon Ltd  -  UNIX and Database Specialists ]
                  [== Tel: 01344 483 250 === Fax: 01344 302781 ==]
                  [** UNIX just forks around creating children **]
 
 
 

1. Stupid Questions: Sun 8mm dump tape =>AIX 8mm dump tape

Ok, I'm sure this is a RTFM type question but I don't have the time
or access.

I have an 8mm tape dumped using an Exabyte on a Sun and I'd like to
read it on an RS6000 also with an Exabyte 8mm drive.  I tried
to restore -i on rmt1 to see if I could read the tape at all.  Of course
I don't remember the error message I got but it was something like
"..is not a dump tape", e.g. 'I don't know what the f*ck this is but
its not a tape format I can read'.  

2. I Have Working TSENG ET6000 Config

3. using 14gb 8mm tape drive to write tapes for 2gb tape drive

4. glibc upgrade

5. Re. copy 8mm tape to 8mm tape

6. Konqueror?

7. How can I get the IBM RS6000's 8mm tape to read other 8mm tapes ?

8. Weird output from getservbyport

9. Dump error on 8mm tape drive, SUN OS 4.1.3?

10. What is the dump parameters for an Sun(Exabyte EXB-8505 8mm) XL tape drive?

11. What is the dump parameters for Sun (Exabyte 8505 8mm) XL tape drive?

12. 8MM and 4MM Tapes/Tape Drives

13. Plea for help in NYC area - need cleaning tape for 8MM tape drive