Thanks for your rapid reply - Jae On Tue, Jul 22, 2014 at 1:29 AM, Gregory Farnum <greg at inktank.com> wrote: > On Monday, July 21, 2014, Jaemyoun Lee <jmlee at cpslab.hanyang.ac.kr> wrote: > >> Hi all, >> >> I wonder that OSDs use system calls of Virtual File System (i.e. open, >> read, write, etc) when they access disks. >> >> I mean ... Could I monitor I/O command requested by OSD to disks if I >> monitor VFS? >> > > Yes. The default configuration stores data in a local filesystem and > accesses it like any other sophisticated filesystem consumer. > -Greg > > >> >> - Jae >> >> -- >> ??? Jaemyoun Lee >> >> CPS Lab. ( Cyber-Physical Systems Laboratory in Hanyang University) >> E-mail : jmlee at cpslab.hanyang.ac.kr >> Homepage : http://cpslab.hanyang.ac.kr >> > > > -- > Software Engineer #42 @ http://inktank.com | http://ceph.com > -- ??? Jaemyoun Lee CPS Lab. ( Cyber-Physical Systems Laboratory in Hanyang University) E-mail : jmlee at cpslab.hanyang.ac.kr Homepage : http://cpslab.hanyang.ac.kr -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.ceph.com/pipermail/ceph-users-ceph.com/attachments/20140722/7219dd0a/attachment.htm>
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