1819855 Members
2569 Online
109607 Solutions
New Discussion юеВ

Re: iostat output

 
xcvzxvzxdv
Advisor

iostat output

Hi, can anybody tell me wht do I understand by the output of this command iostat.

# iostat

device bps sps msps

c2t0d0 0 0.0 1.0
c2t1d0 0 0.0 1.0
c12t0d6 0 0.0 1.0
c12t0d7 0 0.0 1.0
c12t0d0 0 0.0 1.0
c12t0d2 0 0.0 1.0
c12t0d5 0 0.0 1.0
c12t0d3 0 0.0 1.0
c12t0d1 0 0.0 1.0
c18t5d0 0 0.0 1.0
c19t7d0 0 0.0 1.0
5 REPLIES 5
Derek Whigham_1
Trusted Contributor

Re: iostat output

iostat iteratively reports I/O statistics for each active disk on the system. Disk data is arranged in a four-column format:
Column Heading Interpretation
device Device name
bps Kilobytes transferred per second
sps Number of seeks per second
msps Milliseconds per average seek

I would use "iostat 1 60"
this reports every second for 60 seconds
Divide and Conquer
Sergejs Svitnevs
Honored Contributor

Re: iostat output

Device is the disk drive name, bps is the number of kilobytes transferred per second, sps indicates the number of disk seeks per second, and msps is the average time, in milliseconds, for a disk seek.
Regards
xcvzxvzxdv
Advisor

Re: iostat output

thks for ur reply, but I need to know how can i do performance monitoring from this command is there and threshold for this.

And how would I know if the disk is performing well or not
Steven E. Protter
Exalted Contributor

Re: iostat output

Shalom,

You may find other tools more helpful.

glance.

These scripts:
http://www.hpux.ws/system.perf.sh

Be patient with the webiste, it was just migrated to new hardware and its firewall hardware is stressed out.

SEP
Steven E Protter
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
Chan 007
Honored Contributor

Re: iostat output