ironic/releasenotes/notes/shred-final-overwrite-with-zeros-50b5ba5b19c0da27.yaml
Mathieu Mitchell c47c6d2ab5 Allow configuring shred's final overwrite with zeros
Introduce shred_final_overwrite_with_zeros, a new configuration option
to control whether devices will receive a final overwrite with zeros
during cleaning. Additionally, rename erase_devices_iterations to
shred_random_overwrite_iterations to clarify the true meaning of this
configuration option.

Also, ensure a warning is raised in the logs to raise awareness around
the potential security risk of running cleaning with iterations=0 and
overwrite_with_zeros=False.

Change-Id: I0dd3f488ab2cd0df778f34a5a23948fa0c6c4334
Closes-Bug: #1568811
Depends-On: I7053034f5b5bc6737b535ee601e6fb71284d4a83
2016-05-10 15:13:21 -04:00

15 lines
758 B
YAML

---
features:
- A new configuration option, `shred_final_overwrite_with_zeros` is now
available. This option controls the final overwrite with zeros done on
all block devices for a node under cleaning. This feature was previously
always enabled and not configurable. This option is only used when a
block device could not be ATA Secure Erased.
deprecations:
- The [deploy]/erase_devices_iterations config is deprecated and will
be removed in the Ocata cycle. It has been replaced by the
[deploy]/shred_random_overwrite_iterations config. This configuration
option controls the number of times block devices are overwritten with
random data. This option is only used when a block device could not be
ATA Secure Erased.