Thanks for your rapid reply - Jae
On Tue, Jul 22, 2014 at 1:28 AM, Kyle Bader <[email protected]> wrote: > > 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? > > Ceph OSDs run on top of a traditional filesystem, so long as they > support xattrs - xfs by default. As such you can use kernel > instrumentation to view what is going on "under" the Ceph OSDs. > > -- > > Kyle > > -- 이재면 Jaemyoun Lee CPS Lab. ( Cyber-Physical Systems Laboratory in Hanyang University) E-mail : [email protected] Homepage : http://cpslab.hanyang.ac.kr
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