Hi Crispin,
Take a look at z/VM 5.4 APAR VM64449. It expands the existing Class B
FLASHCopy command to allow privileged users to establish and manage
Persistent Flashcopy relationships. (The existing command creates
point-in-time copies, where the relationships are destroyed as soon as the
copy completes.) If I understand what you're looking for, it would be a
persistent relationship with change recording enabled (this is an option
on FLASHCopy ESTABLISH), followed by periodic FLASHCopy RESYNC commands to
bring the target up to the state of the current source, since the last
Flashcopy command was issued.
There is also a Class B Query command that lets you interrogate the state
of all your Flashcopy relationships, beyond the existing command (Class G
Query Virtual) that queries those relationships inside a virtual machine.
Regards,
Eric
Eric Farman
z/VM I/O Development
IBM Endicott, NY
The IBM z/VM Operating System <[email protected]> wrote on
03/12/2009 11:29:12 AM:
> From:
>
> Crispin Hugo <[email protected]>
>
> To:
>
> [email protected]
>
> Date:
>
> 03/12/2009 11:29 AM
>
> Subject:
>
> Incremental Flashcopy backups.
>
> Am I missing something !
> Under z/OS I can do incremental copies of packs on our DS6800. I can't
> seem to find the same function under z/VM. Can someone confirm my worst
> fears that it can't be done under z/VM or make me very happy by showing
> me where I have gone wrong.
>
> Crispin Hugo
> Systems Programmer
> Macro 4
>
>
>
>
>
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