Date: Mon, 19 Aug 2013 14:06:55 +0200 From: Ivan Voras <ivoras@freebsd.org> To: freebsd-fs@freebsd.org Subject: Upgrading ZFS compression Message-ID: <kut1oq$plv$1@ger.gmane.org>
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[-- Attachment #1 --] Hello, Just a quick question: if I have a file system with LZJB, write a file on it so it gets compressed, then change the compression setting on the file system to LZ4, will new random writes to the file use the new compression algorithm? By looking at the data structures (dnode_phys_t) it looks like the compression is set per-file object, so no. OTOH, new files on the file system will pick up new compression settings, right? [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (FreeBSD) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iEYEARECAAYFAlISCmIACgkQ/QjVBj3/HSx1FACdHbyqwUtegTHjAsx4eZ5kjiUZ On4AnjM6ZmAMQt8PKTmaRDRuHpOn1qlc =gkwK -----END PGP SIGNATURE-----
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