Hi, I am looking for metrics that affect/reflect user I/O performance. So far I understand OST and MDT metrics are significant. But is there any other metrics which get updated during file write/read operation? Mainly I want to know what is the significance of LOV and LLITE metrics in terms of I/O. (As LOV is related to client, I think it might be significant, but not sure what does it indicate) Also what do these metrics in LLITE indicate?
lazystatfs site checksum_pages lmv statahead_agl lov default_easize statahead_running_max dump_page_cache max_easize statahead_stats extents_stats fast_read stats_track_gid nosquash_nids stats_track_pid offset_stats stats_track_ppid fstype pio unstable_stats read_ahead_stats root_squash xattr_cache sbi_flags also whats the difference between kbytesavail and kbytesfree in the contest of lustre?
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