https://www.ibm.com/docs/en/zos/2.4.0?topic=commandsckd-pprcopy-suspendsuspending-pairs

Use the PPRCOPY SUSPEND command to suspend PPRCOPY operation between a
primary and secondary volume pair. When the PPRCOPY SUSPEND command is
directed to the primary or secondary device of a PPRCOPY volume pair, the
pair is suspended, and data is no longer transferred to the secondary
volume. The primary device records which cylinders are no longer
synchronous. When the pair is reestablished with the PPRCOPY ESTPAIR
command, you can use MODE(RESYNC) to synchronize the volume again.

If the PPRCOPY ESTPAIR MODE(RESYNC) does not work, then you would delete
pairs and re-establish as brand new copies, which would include updating
unchanged tracks.

‪On Mon, Jun 9, 2025 at 12:19 PM ‫גדי בן אבי‬‎ <[email protected]>
wrote:‬

> Hi,
> About a week and a half ago we had a problem with the only communication
> line used for replication between our two sites.
> This evening, the line was reestablished.
>
> When I try to use CSM to start the replication session, I get this message:
> Malam_new_MM that resulted in a hardware error for copy set
> DS8000:2107.LKX01:VOL:0182 with source DS8000:2107.LKX01:VOL:0182(MKB9A9)
> and target DS8000:2107.KRL21:VOL:0182(MKB9A9) in role pair H1-H2. The
> hardware returned an error code of 0f12.
>
> When I look at what 0f12 means, I get:
>
> For an Establish Peer-to-Peer Remote Copy Pair command with full copy or
> nocopy, the primary and secondary devices are not Simplex.
> Explanation:
> Attempt to establish a PPRC pair with full copy or no copy and the primary
> and secondary devices are not Simplex
>
> Can anyone suggest how to continue?
>
> Thanks
>
> Gadi
>
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-- 
Mike A Schwab, Springfield IL USA
Where do Forest Rangers go to get away from it all?

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