Date: Wed, 29 Mar 2017 16:12:30 +0200 From: Maurizio Vairani <maurizio.vairani@cloverinformatica.it> To: Andriy Gapon <avg@FreeBSD.org>, freebsd-fs@FreeBSD.org Subject: Re: ZFS. No error message when copying a 100 GiB file on a 22 GiB pool Message-ID: <7be5a365-9dda-3a74-4d31-064417dd1a49@cloverinformatica.it> In-Reply-To: <334a8e6b-440a-7b9f-7aad-b17a119c50e7@FreeBSD.org> References: <6d1f7b87-9cc8-35ca-eb5e-3d448b307461@cloverinformatica.it> <334a8e6b-440a-7b9f-7aad-b17a119c50e7@FreeBSD.org>
next in thread | previous in thread | raw e-mail | index | archive | help
Il 29/03/2017 14:21, Andriy Gapon ha scritto: > On 29/03/2017 12:06, Maurizio Vairani wrote: >> 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 > Does stat(1) also report a different size? Yes > Does md5 also report different content? Yes # stat Win7.img 901358515 463 -rw-r--r-- 1 root wheel 4294967295 107374182400 "Mar 24 15:40:41 2017" "Mar 24 16:18:14 2017" "Mar 24 16:18:14 2017" "Mar 24 15:40:41 2017" 131072 114638073 0x800 Win7.img # md5 Win7.img MD5 (Win7.img) = 92810cda676cd22cc726c17918bf3cee # stat /zdata/Win7.img 3839449709 8 -rw-r--r-- 1 root wheel 4294967295 49498554368 "Mar 28 16:29:41 2017" "Mar 28 16:36:24 2017" "Mar 28 16:36:24 2017" "Mar 28 16:29:41 2017" 131072 45193337 0x800 /zdata/Win7.img # md5 /zdata/Win7.img MD5 (/zdata/Win7.img) = b7c3f59e0387ac810b4bbda6eade99db
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?7be5a365-9dda-3a74-4d31-064417dd1a49>