High CPU HOST OS CSM-BTLS Slow SnapMirror on FAS2500 ONTAP 9.6 or higher
Applies to
- ONTAP 9.6 and newer
- FAS2500 systems
Issue
- High CPU in HOST domain, viewing
TOP-BS
from Weekly AutoSupports in Active IQ shows top consumer is CSM BTLS - Slow SnapMirror transfer is seen on FAS2500s
Example:
last pid: 1690; load averages: 37.66, 40.22, 40.26 up 22+07:05:20 18:12:42 2083 processes:47 running, 168 sleeping, 2 zombie, 1866 waiting Mem: 167M Active, 868M Inact, 221M Laundry, 2065M Wired, 54M Buf, 75M Free Swap: 4096M Total, 583M Used, 3513M Free, 14% Inuse PID USERNAME THR PRI NICE SIZE RES STATE C TIME WCPU COMMAND 2402 root 1 -16 - 0K 20K CPU3 3 39.0H 74.76% CSM BTLS 2404 root 1 -16 - 0K 20K CPU0 0 39.0H 73.58% CSM BTLS 2401 root 1 -16 - 0K 20K RUN 0 38.9H 73.49% CSM BTLS 2403 root 1 -16 - 0K 20K CPU2 2 38.9H 72.61% CSM BTLS