Hi,
We previously had a monitoring tool in Lustre 2.12.X that relied on
files located under /proc/fs/lustre for gathering metrics. However,
after upgrading our system to version 2.15.2, we noticed that at least
five files previously found under /proc/fs/lustre are no longer present.
Here is a list of these files as an example:
/proc/fs/lustre/osd-ldiskfs/fsname-OST0078/brw_stats
/proc/fs/lustre/osd-ldiskfs/fsname-OST0078/kbytestotal
/proc/fs/lustre/osd-ldiskfs/fsname-OST0078/kbytesfree
/proc/fs/lustre/osd-ldiskfs/fsname-OST0078/filestotal
/proc/fs/lustre/osd-ldiskfs/fsname-OST0078/filesfree
We have been unable to locate these files in the new version. We can
still obtain size information using the following commands:
lctl get_param obdfilter.*.kbytestotal
lctl get_param obdfilter.*.kbytesfree
lctl get_param obdfilter.*.filestotal
lctl get_param obdfilter.*.filesfree
However, we are unsure how to access the information previously
available in the brw_stats file. Any guidance or suggestions would be
greatly appreciated.
Thanks,
Jane
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