Re: [zfs-discuss] Compress ratio???
On Sat, Aug 14, 2010 at 6:32 AM, Edward Ned Harvey sh...@nedharvey.com wrote: I'm confused. I have compression enabled on a ZFS filesystem, which contains for all intents and purposes, just a single 20G file, and I see ... # ls -lh somefile -rw--- 1 root root 20G Aug 13 17:41 somefile # du -h somefile 5.6G somefile (Sounds like approx 25-30% of the original size to me...) # zfs get compressratio mypool/myzfs NAME PROPERTY VALUE SOURCE mypool/myzfs compressratio 1.28x - # zfs list | grep myzfs mypool/myzfs 5.65G 3.80T 5.65G /mypool/myzfs The compressratio shows you how much *real* data was compressed. The file in question, however, can be sparse file and have its size vastly different from what du says, even without compression. -- Regards, Cyril ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Compress ratio???
From: cyril.pli...@gmail.com [mailto:cyril.pli...@gmail.com] On Behalf Of Cyril Plisko The compressratio shows you how much *real* data was compressed. The file in question, however, can be sparse file and have its size vastly different from what du says, even without compression. Ahhh. Thank you. ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] Compress ratio???
I'm confused. I have compression enabled on a ZFS filesystem, which contains for all intents and purposes, just a single 20G file, and I see ... # ls -lh somefile -rw--- 1 root root 20G Aug 13 17:41 somefile # du -h somefile 5.6G somefile (Sounds like approx 25-30% of the original size to me...) # zfs get compressratio mypool/myzfs NAMEPROPERTY VALUE SOURCE mypool/myzfs compressratio 1.28x - # zfs list | grep myzfs mypool/myzfs 5.65G 3.80T 5.65G /mypool/myzfs ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
