Thanks Yan, what if we wanna see some more specific or detailed information? E.g. with cephfs we may run 'cephfs /mnt/a.txt show_location --offset' to find the location of a given offset. ----------------------- Wu Xiangwei Tel : 0571-86760875 2014 UIS 2, TEAM BORE -----邮件原件----- 发件人: Yan, Zheng [mailto:ukernel@xxxxxxxxx] 发送时间: 2015年12月7日 11:22 收件人: wuxiangwei 09660 (RD) 抄送: ceph-devel@xxxxxxxxxxxxxxx; ceph-users@xxxxxxxxxxxxxx 主题: Re: how to see file object-mappings for cephfuse client On Mon, Dec 7, 2015 at 10:51 AM, Wuxiangwei <wuxiangwei@xxxxxxx> wrote: > Hi, Everyone > > Recently I'm trying to figure out how to use ceph-fuse. If we mount cephfs as the kernel client, there is a 'cephfs' command tool (though it seems to be 'deprecated') with 'map' and 'show_location' commands to show the RADOS objects belonging to a given file. However, it doesn't work well for ceph-fuse, neither can I find a similar tool to see the mappings. Any suggestions? > Thank you! Rados objects for a give inode is in form <inode number in hex>.xxxxxxxx. To get a file's layout, you can use getfattr -n ceph.file.layout <file name> To find a given object is stored on which OSDs, you can use command, ceph osd map <cephfs data pool> <object name> > > > ----------------------- > Wu Xiangwei > Tel : 0571-86760875 > 2014 UIS 2, TEAM BORE > > -- > To unsubscribe from this list: send the line "unsubscribe ceph-devel" > in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo > info at http://vger.kernel.org/majordomo-info.html ��.n��������+%������w��{.n����z��u���ܨ}���Ơz�j:+v�����w����ޙ��&�)ߡ�a����z�ޗ���ݢj��w�f
