How can I confirm vdump tape data of Tru64 UNIX ?

[Minoru Asano]

Hello,

[ENVIRONMENT]
Tru64 UNIX V4.0F

[SITUATION]
After backup the data into tape, the customer would like to know whether
the data was saved by using vdump command of Tru64 UNIX or not at
another operating system. For example, at Red Hat Linux, so on.

[QUESTION]
- Can we confirm whether the data was saved using vdump of Tru64 UNIX ?
I guess that it is possible to confirm by viewing tape header with any command.


Thank you for advice.
Best Regards.
/Minoru.Asano

[Steven Schweda]

On a Tru64 system, "vrestore -t" could be
useful. (What does it do on a non-vdump
tape?)

[Minoru Asano]

Thank you for quick response.

I know that "vrestore -t" is useful at Tru64 UNIX.
But I would like to know the method at another operating system.
For example, any command at Red Hat Enterprise Linux, so on.

Thank you for advice.
Best Regards.
/Minoru.Asano

[Steven Schweda]

I don't have any information on the vdump
format, but if I use "strings" on a vdump
saveset, I see what looks like a Tru64
version number near the front:

urtx# vdump -0 -f /usr/vdump_root /
urtx# strings /usr/vdump_root | more
E5.0
E5.0
[...]

"od -a" (or similar) instead of "strings"
shows more details.

That's on Tru64 V5.1B. An older version of
vdump might say something different.