Neal Pollack wrote: > I have an 800GB raidz2 zfs filesystem. It already has approx 142Gb of > data. > Can I simply turn on compression at this point, or do you need to start > with compression at the creation time?
As I understand it, you can turn compression on and off at will. Data will be written to the disk according to the compression mode, and either compressed or uncompressed blocks can be read regardless of the setting. If I turn on compression now, what > happens to the existing data? Existing (uncompressed) data will remain uncompressed until it is re-written, at which point it may be compressed. Dana _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss