ironic/releasenotes/notes/shred-final-overwrite-with-...

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---
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 It has been replaced by the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.