Date: Wed, 29 Mar 2017 11:06:40 +0200 From: Maurizio Vairani <maurizio.vairani@cloverinformatica.it> To: freebsd-fs@FreeBSD.org Subject: ZFS. No error message when copying a 100 GiB file on a 22 GiB pool Message-ID: <6d1f7b87-9cc8-35ca-eb5e-3d448b307461@cloverinformatica.it>
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The PC is running: # uname -a FreeBSD clover-nas2 11.0-RELEASE-p8 FreeBSD 11.0-RELEASE-p8 #0: Wed Feb 22 06:12:04 UTC 2017 root@amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC amd64 I need to copy a 100 GiB file, Win7.img, to another machine. The idea is to use a fast USB 3 SSD. The pool on it, zdata, was created with the command: # zpool create -m /zdata -O compression=lz4 -O atime=off zdata diskid/DISK-00000000000000000000 # zpool list zdata NAMESIZE ALLOC FREE EXPANDSZ FRAGCAP DEDUP HEALTH ALTROOT zdata 22.2G 4.85M 22.2G -16% 0% 1.00x ONLINE - # du -hA Win7.img 100GWin7.img # du -h Win7.img 55GWin7.img # /bin/cp Win7.img /zdata/ No error message is printed. The file on zdata is truncated: # du -Ah /zdata/Win7.img 46G/zdata/Win7.img # du -h /zdata/Win7.img 22G/zdata/Win7.img Regards, Maurizio
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