can someone explain IOSTAT ouput?

Posted by user37197 on Server Fault See other posts from Server Fault or by user37197
Published on 2010-03-12T17:48:26Z Indexed on 2010/03/12 17:57 UTC
Read the original article Hit count: 244

Filed under:

iostat

i'am having IBM server with Redhat 5 ElsmP connected to the IBM Storage over iSCSI (in sdb ) can someone explain this output from iostat command

avg-cpu: %user %nice %system %iowait %steal %idle 12.79 0.01 4.53 72.22 0.00 10.45

Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn sda 95.63 48.88 240.95 485589164 2393706728 sdb 29.20 350.49 402.08 3481983365 3994494696

move large file to sdb very slowly,it seem normaly?

Related posts about iostat

"iostat" command different in two equal machines

as seen on Server Fault - Search for 'Server Fault'
We have several machines on Amazon (ec2) of the type c1.xlarge with 8 cpus, running the Amazon AMI. Details on the machine: 7 GB of memory 20 EC2 Compute Units (8 virtual cores with 2.5 EC2 Compute Units each) 1690 GB of instance storage 64-bit platform I/O Performance: High API name: c1.xlarge One… >>> More
can someone explain IOSTAT ouput?

as seen on Server Fault - Search for 'Server Fault'
i'am having IBM server with Redhat 5 ElsmP connected to the IBM Storage over iSCSI (in sdb ) can someone explain this output from iostat command avg-cpu: %user %nice %system %iowait %steal %idle 12.79 0.01 4.53 72.22 0.00 10.45 Device: tps Blk_read/s … >>> More
What iowait values are ok?

as seen on Server Fault - Search for 'Server Fault'
I am trying to find the bottleneck of a server running a fairly busy php/mysql site. My first culprit was io but iostat shows that on average iowait consumes only %3.60 of cpu time. here is the complete result of issuing iostat: avg-cpu: %user %nice %system %iowait %steal %idle 65… >>> More
No apparent reason for high load average

as seen on Server Fault - Search for 'Server Fault'
We have several web servers running on Amazon (ec2) c1.xlarge, over Amazon AMI. The servers are duplicates of each other, running the exact same hardware and software. Each server spec is: 7 GB of memory 20 EC2 Compute Units (8 virtual cores with 2.5 EC2 Compute Units each) 1690 GB of instance storage 64-bit… >>> More
Finding throuput of CPU and Hardrive on Solaris

as seen on Server Fault - Search for 'Server Fault'
How do i find the throughput of a CPU and the Hardisk on an open solaris machine. Using MPstat or iostat. I'm having a hard time identifying the throughput if it is given at all in the commands output. Eg. in mpstat there is very little explanation as to what the columns mean http://docs.sun.com/app/docs/doc/816-5166/mpstat-1m… >>> More

Developer IT

can someone explain IOSTAT ouput? - Developer IT

can someone explain IOSTAT ouput?

iostat

Related posts about iostat

"iostat" command different in two equal machines

can someone explain IOSTAT ouput?

What iowait values are ok?

No apparent reason for high load average

Finding throuput of CPU and Hardrive on Solaris

Categories cloud