Thanks Cameron , Is it possible to know which OST are actively in used for a client lets say during rsync copy .
/Zee On Thu, Sep 13, 2018 at 2:17 AM Cameron Harr <ha...@llnl.gov> wrote: > I realize I didn't answer all the questions, so: > > 1) For a file-system-level view, we use ltop, a handy utility that's in > the LMT package (https://github.com/LLNL/lmt). If you want to pinpoint > OST or MDT tests, you could lock a file/dir to a particular OST/MDT and > then use 'zpool iostat ...' to monitor I/O for that device > > 2) Again, I'd recommend getting ltop. 'zpool iostat' can give you numerous > performance statistics as well. > > On 09/12/2018 04:11 PM, Cameron Harr wrote: > > Use 'zpool iostat -v ...'. You can review the man page for lots of > options, including latency statistics. > > Cameron > > On 09/10/2018 11:21 AM, Zeeshan Ali Shah wrote: > > Dear All, > > Suddenly our lustre installation become dead slow, copying data from local > source to lustre result around 20MB/sec before it was above 600 MB. > > i checked zfs status -xv and (all pool healths are ok) > > 1) How to check which OSTs are involved during data write operation ? > 2) How to check Meta data (read and write) stats ? > 3) any other advice to drill down the reason .. > > > /Zeeshan > > > _______________________________________________ > lustre-discuss mailing > listlustre-discuss@lists.lustre.orghttp://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org > > > > > _______________________________________________ > lustre-discuss mailing > listlustre-discuss@lists.lustre.orghttp://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org > > > _______________________________________________ > lustre-discuss mailing list > lustre-discuss@lists.lustre.org > http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org >
_______________________________________________ lustre-discuss mailing list lustre-discuss@lists.lustre.org http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org
