Bug#593658: default compression=on?
Starting with jessie, newly-created zpools have the lz4_compress feature
enabled. Their metadata will be always compressed with LZ4.
But compression of file *data* is still disabled by default
(compression=off option).
lz4 is so fast, and the overhead so small that it probably makes
performance sense to enabled it, whether you think your data will be
compressable or not,
But I agree with Witold's comments[0] that compression has some
unexpected effects in userland. (Some Debian package testsuites will
actually fail). It perhaps should not be enabled by default just yet,
but we should try to make it install-time selectable within d-i:
[0]: https://bugs.debian.org/593658#32
Regards,
--
Steven Chamberlain
steven@pyro.eu.org
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