Jan Höppner d55818a797 dasdfmt: Fall back to full format if space release fails ...

In certain storage setups the Release Allocated Space (RAS) command to
free up space on the storage server previously allocated for an ESE DASD
might not work. At the moment dasdfmt will error out if RAS is failing.
This however is not ideal for the default case when a user is expecting
dasdfmt to simply format the disk.

One workaround would be to specify --no-discard to disable RAS
completely. However, a sane default handling that tries to work every
time is more reasonable.

Change the default handling as follows: If an ESE is detected default to
QUICK mode and try RAS. If RAS fails, fall back to the FULL format mode
and display a warning accordingly.

If -M (--mode) QUICK is specified explicitly dasdfmt will still error
out on a failing RAS. A combination with --no-discard will still allow
for a QUICK format on an ESE DASD in that case, if desired.

Reviewed-by: Stefan Haberland <sth@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
Signed-off-by: Steffen Eiden <seiden@linux.ibm.com>

2023-05-30 13:29:57 +02:00

..

dasdfmt.8

dasdfmt: Fall back to full format if space release fails

2023-05-30 13:29:57 +02:00

dasdfmt.c

dasdfmt: Fall back to full format if space release fails

2023-05-30 13:29:57 +02:00

dasdfmt.h

dasdfmt: Make error function less error-prone

2020-11-09 12:24:32 +01:00

Makefile

libdasd: Move get_host_access_count() to libdasd

2019-05-21 14:16:53 +02:00