So if we avoid translation and use tar.gz to backup, theoretically it
should be OK?
I think any such backup should be file level. I learnt the hard way last
weekend when we tried to recover from a fuzzy volume backup of Linux
guests.

BTW, on z/OS side we have not been able to successfuly snap z/VM volumes.
Any idea why?
__________________________________________
Ranga Nathan / CSG
Systems Programmer - Specialist; Technical Services;
BAX Global Inc. Irvine-California
Tel: 714-442-7591   Fax: 714-442-2840




Rick Troth <[EMAIL PROTECTED]>

Sent by: Linux on 390 Port <[email protected]>
06/07/2005 09:25 AM
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Linux on 390 Port <[email protected]>


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Re: Bringing USS into the Penguin Colony using HFS






Linux (any HW) and z/OS can share filesystems via NFS.
I have mounted z/OS filesystems on both PC Linux and mainframe Linux.
Big nasty thing to deal with:  EBCDIC -vs- ASCII.   Many shops
mount things twice,  one mount point with charset trans,
another mount point without it.   Yuck.

Personally,  I avoid translation because it WILL destroy
any binary file that might get copied from here to there and back.
Not that I don't use it;  just that I avoid it unless/until
it is absolutely necessary.

I have some old code that reads a line of plain text and figures out
if it is EBCDIC plain text or ASCII plain text and normalizes it.
Thankfully,  z/OS uses a NL character that is non-printable in all
environments,  so you can readily distinguish EBCDIC NL from ASCII NL.
With such a function  (which is trivial to write)  any programs
which read plain text can be set free from A/E problems and you can
mount FS without translation and without dual mount nonsense.

> I was wondering if I can mount a SuSE file system under USS/zOS as a
> recovery system.

Any such recovery would be very limitted.

Also,  device files are a big pain.
z/OS explicitly does not let you craete block device files.   :-(
And one would expect the major/minor numbers to differ between any two
Unix variants,  until the standards police are deployed to this sector.

-- R;

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