Skip to main content
NetApp Knowledge Base

High CPU HOST OS CSM-BTLS Slow SnapMirror on FAS2500 ONTAP 9.6 or higher

Views:
595
Visibility:
Public
Votes:
1
Category:
fas-systems
Specialty:
perf
Last Updated:

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

 

Sign in to view the entire content of this KB article.

New to NetApp?

Learn more about our award-winning Support

NetApp provides no representations or warranties regarding the accuracy or reliability or serviceability of any information or recommendations provided in this publication or with respect to any results that may be obtained by the use of the information or observance of any recommendations provided herein. The information in this document is distributed AS IS and the use of this information or the implementation of any recommendations or techniques herein is a customer's responsibility and depends on the customer's ability to evaluate and integrate them into the customer's operational environment. This document and the information contained herein may be used solely in connection with the NetApp products discussed in this document.