RHEL7/8: disk read/write not visible in pcp dstat

Solution Unverified - Updated -


When pcp dstat is executed, it is not showing disk read and write values:

[root@host ~]# pcp dstat
You did not select any stats, using -cdngy by default.
----total-usage---- -dsk/total- -net/total- ---paging-- ---system--
usr sys idl wai stl| read  writ| recv  send|  in   out | int   csw
 12   9  58  20   0|                     |  23M   19M|   0     0 |  88k  183k
 14   8  58  18   0|                      |  34M   27M|   0     0 | 105k  215k


  • Red Hat Enterprise Linux (RHEL) 7 and 8
  • Performance Co-Pilot (PCP)
    • RHEL7: seen on pcp-4.3.2, likely also earlier versions affected
    • RHEL8: versions before pcp-5.0.2-5.el8

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.

Current Customers and Partners

Log in for full access

Log In

New to Red Hat?

Learn more about Red Hat subscriptions

Using a Red Hat product through a public cloud?

How to access this content