Solved

Linux I/O analyze - part 2

Posted on 2013-01-25
2
552 Views
Last Modified: 2013-01-26
Hi,

Could you please help me with an analyze of the following iostat values?
Are they OK or not?

Thank you!


Device:         rrqm/s   wrqm/s   r/s   w/s   rsec/s   wsec/s avgrq-sz avgqu-sz   await  svctm  %util
cciss/c0d0        0.02    24.15  0.09  8.76     5.27   263.38    30.36     0.02    2.40   3.06   2.71
sda               0.13    11.62  0.23  3.09    48.46   117.73    49.97     0.02    6.35   0.41   0.14
dm-0              0.00     0.00  0.36 14.72    48.46   117.73    11.02     0.08    5.62   0.09   0.14

Device:         rrqm/s   wrqm/s   r/s   w/s   rsec/s   wsec/s avgrq-sz avgqu-sz   await  svctm  %util
cciss/c0d0        0.00     7.80  0.00  1.60     0.00    75.20    47.00     0.01    8.50   6.75   1.08
sda               0.00    16.00  0.00  7.20     0.00   185.60    25.78     0.03    4.69   0.28   0.20
dm-0              0.00     0.00  0.00 23.20     0.00   185.60     8.00     0.09    3.95   0.09   0.20

Device:         rrqm/s   wrqm/s   r/s   w/s   rsec/s   wsec/s avgrq-sz avgqu-sz   await  svctm  %util
cciss/c0d0        0.00    10.80  0.00  3.20     0.00   112.00    35.00     0.03    7.88   5.44   1.74
sda               0.00    38.60  0.00 12.60     0.00   409.60    32.51     0.05    4.03   0.22   0.28
dm-0              0.00     0.00  0.00 51.20     0.00   409.60     8.00     0.22    4.32   0.05   0.28

Device:         rrqm/s   wrqm/s   r/s   w/s   rsec/s   wsec/s avgrq-sz avgqu-sz   await  svctm  %util
cciss/c0d0        0.00     7.00  0.00  1.80     0.00    70.40    39.11     0.02   11.44   6.33   1.14
sda               0.00    11.00  0.00  6.20     0.00   137.60    22.19     0.03    4.29   0.26   0.16
dm-0              0.00     0.00  0.00 17.20     0.00   137.60     8.00     0.05    3.00   0.09   0.16

Device:         rrqm/s   wrqm/s   r/s   w/s   rsec/s   wsec/s avgrq-sz avgqu-sz   await  svctm  %util
cciss/c0d0        0.00    27.00  0.00 11.80     0.00   310.40    26.31     0.11    9.56   5.42   6.40
sda               0.00    38.60  0.00  8.60     0.00   377.60    43.91     0.05    6.07   0.30   0.26
dm-0              0.00     0.00  0.00 47.20     0.00   377.60     8.00     0.32    6.83   0.06   0.26

Device:         rrqm/s   wrqm/s   r/s   w/s   rsec/s   wsec/s avgrq-sz avgqu-sz   await  svctm  %util
cciss/c0d0        0.00    13.40  0.00 23.80     0.00   297.60    12.50     1.32   55.39   3.58   8.52
sda               0.00    33.20  0.00  8.20     0.00   331.20    40.39     0.04    4.32   0.22   0.18
dm-0              0.00     0.00  0.00 41.40     0.00   331.20     8.00     0.21    5.02   0.04   0.18

Device:         rrqm/s   wrqm/s   r/s   w/s   rsec/s   wsec/s avgrq-sz avgqu-sz   await  svctm  %util
cciss/c0d0        0.00    23.00  0.00 15.20     0.00   305.60    20.11     0.22   14.67   4.92   7.48
sda               0.00    35.40  0.00 11.60     0.00   376.00    32.41     0.06    4.95   0.26   0.30
dm-0              0.00     0.00  0.00 47.00     0.00   376.00     8.00     0.30    6.37   0.06   0.30

Device:         rrqm/s   wrqm/s   r/s   w/s   rsec/s   wsec/s avgrq-sz avgqu-sz   await  svctm  %util
cciss/c0d0        0.00    95.40  0.00 22.40     0.00   942.40    42.07     0.45   19.88   3.03   6.78
sda               0.00    35.00  0.00  8.40     0.00   347.20    41.33     0.05    6.10   0.31   0.26
dm-0              0.00     0.00  0.00 43.40     0.00   347.20     8.00     0.28    6.41   0.06   0.26

Device:         rrqm/s   wrqm/s   r/s   w/s   rsec/s   wsec/s avgrq-sz avgqu-sz   await  svctm  %util
cciss/c0d0        0.00    20.76  0.00  4.39     0.00   201.20    45.82     0.06   13.09   4.68   2.06
sda               0.00    53.49  0.00 12.77     0.00   530.14    41.50     0.05    4.08   0.22   0.28
dm-0              0.00     0.00  0.00 66.27     0.00   530.14     8.00     0.28    4.22   0.04   0.28

Device:         rrqm/s   wrqm/s   r/s   w/s   rsec/s   wsec/s avgrq-sz avgqu-sz   await  svctm  %util
cciss/c0d0        0.00     8.80  0.00  1.20     0.00    80.00    66.67     0.01    8.67   8.67   1.04
sda               0.00    15.60  0.00  7.40     0.00   184.00    24.86     0.03    3.38   0.27   0.20
dm-0              0.00     0.00  0.00 23.00     0.00   184.00     8.00     0.06    2.77   0.09   0.20

Device:         rrqm/s   wrqm/s   r/s   w/s   rsec/s   wsec/s avgrq-sz avgqu-sz   await  svctm  %util
cciss/c0d0        0.00    25.60  0.00 10.40     0.00   288.00    27.69     0.13   12.52   3.75   3.90
sda               0.00    38.40  0.00  8.40     0.00   374.40    44.57     0.04    4.81   0.24   0.20
dm-0              0.00     0.00  0.00 46.80     0.00   374.40     8.00     0.23    4.94   0.04   0.20

Device:         rrqm/s   wrqm/s   r/s   w/s   rsec/s   wsec/s avgrq-sz avgqu-sz   await  svctm  %util
cciss/c0d0        0.00     8.40  0.00  7.20     0.00   124.80    17.33     0.05    7.25   6.75   4.86
sda               0.00    43.60  0.00  8.40     0.00   416.00    49.52     0.05    6.07   0.31   0.26
dm-0              0.00     0.00  0.00 52.00     0.00   416.00     8.00     0.32    6.15   0.05   0.26

Device:         rrqm/s   wrqm/s   r/s   w/s   rsec/s   wsec/s avgrq-sz avgqu-sz   await  svctm  %util
cciss/c0d0        0.00    12.00  0.00 24.60     0.00   292.80    11.90     1.51   61.34   3.79   9.32
sda               0.00    36.20  0.00  8.40     0.00   356.80    42.48     0.05    5.57   0.31   0.26
dm-0              0.00     0.00  0.00 44.60     0.00   356.80     8.00     0.30    6.68   0.06   0.26

Device:         rrqm/s   wrqm/s   r/s   w/s   rsec/s   wsec/s avgrq-sz avgqu-sz   await  svctm  %util
cciss/c0d0        0.00    61.80  0.00 20.40     0.00   657.60    32.24     0.34   16.58   4.38   8.94
sda               0.00    29.60  0.00 12.60     0.00   337.60    26.79     0.07    5.46   0.27   0.34
dm-0              0.00     0.00  0.00 42.20     0.00   337.60     8.00     0.26    6.12   0.08   0.34

Device:         rrqm/s   wrqm/s   r/s   w/s   rsec/s   wsec/s avgrq-sz avgqu-sz   await  svctm  %util
cciss/c0d0        0.00    39.00  0.00  8.20     0.00   377.60    46.05     0.15   18.29   3.20   2.62
sda               0.00    36.80  0.00  8.00     0.00   358.40    44.80     0.04    4.40   0.30   0.24
dm-0              0.00     0.00  0.00 44.80     0.00   358.40     8.00     0.22    4.84   0.05   0.24

Device:         rrqm/s   wrqm/s   r/s   w/s   rsec/s   wsec/s avgrq-sz avgqu-sz   await  svctm  %util
cciss/c0d0        0.00    29.80  0.00  6.40     0.00   289.60    45.25     0.12   18.81   4.00   2.56
sda               0.00    51.40  0.00 13.00     0.00   515.20    39.63     0.07    5.48   0.29   0.38
dm-0              0.00     0.00  0.00 64.40     0.00   515.20     8.00     0.42    6.56   0.06   0.38

Device:         rrqm/s   wrqm/s   r/s   w/s   rsec/s   wsec/s avgrq-sz avgqu-sz   await  svctm  %util
cciss/c0d0        0.00    13.60  0.00  3.00     0.00   132.80    44.27     0.03   10.67   5.27   1.58
sda               0.00    21.20  0.00  7.40     0.00   228.80    30.92     0.03    3.95   0.35   0.26
dm-0              0.00     0.00  0.00 28.60     0.00   228.80     8.00     0.12    4.10   0.09   0.26

Device:         rrqm/s   wrqm/s   r/s   w/s   rsec/s   wsec/s avgrq-sz avgqu-sz   await  svctm  %util
cciss/c0d0        0.00    18.76  0.00  9.58     0.00   226.75    23.67     0.09    8.94   5.29   5.07
sda               0.00    47.50  0.00 13.17     0.00   485.43    36.85     0.05    4.00   0.21   0.28
dm-0              0.00     0.00  0.00 60.68     0.00   485.43     8.00     0.27    4.45   0.05   0.28

Device:         rrqm/s   wrqm/s   r/s   w/s   rsec/s   wsec/s avgrq-sz avgqu-sz   await  svctm  %util
cciss/c0d0        0.00    11.20  0.00  9.00     0.00   161.60    17.96     0.09    9.56   6.13   5.52
sda               0.00    15.60  0.00  7.00     0.00   180.80    25.83     0.04    6.00   0.31   0.22
dm-0              0.00     0.00  0.00 22.60     0.00   180.80     8.00     0.11    5.05   0.10   0.22

Device:         rrqm/s   wrqm/s   r/s   w/s   rsec/s   wsec/s avgrq-sz avgqu-sz   await  svctm  %util
cciss/c0d0        0.00    15.40  0.00 22.00     0.00   299.20    13.60     0.77   35.07   4.39   9.66
sda               0.00    38.60  0.00  8.40     0.00   376.00    44.76     0.05    6.10   0.29   0.24
dm-0              0.00     0.00  0.00 47.00     0.00   376.00     8.00     0.32    6.84   0.05   0.24

Device:         rrqm/s   wrqm/s   r/s   w/s   rsec/s   wsec/s avgrq-sz avgqu-sz   await  svctm  %util
cciss/c0d0        0.00    80.60  0.00 21.20     0.00   814.40    38.42     0.51   24.27   3.48   7.38
sda               0.00    28.00  0.00  8.40     0.00   291.20    34.67     0.04    4.31   0.26   0.22
dm-0              0.00     0.00  0.00 36.40     0.00   291.20     8.00     0.17    4.55   0.06   0.22

Open in new window

0
Comment
Question by:g0all
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 11

Accepted Solution

by:
Chris Sandrini earned 500 total points
ID: 38818597
Here the same thing. What exactly do you need to analyse? The number also very depends on what you are looking for. Write speed? Then you would need to tell what disks are attached.

Is your system idling?
High runqueues?

Please provide more detailed information.
0
 
LVL 1

Author Closing Comment

by:g0all
ID: 38821722
I will return additional information.
0

Featured Post

Enterprise Mobility and BYOD For Dummies

Like “For Dummies” books, you can read this in whatever order you choose and learn about mobility and BYOD; and how to put a competitive mobile infrastructure in place. Developed for SMBs and large enterprises alike, you will find helpful use cases, planning, and implementation.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

The purpose of this article is to show how we can create Linux Mint virtual machine using Oracle Virtual Box. To install Linux Mint we have to download the ISO file from its website i.e. http://www.linuxmint.com. Once you open the link you will see …
In part one, we reviewed the prerequisites required for installing SQL Server vNext. In this part we will explore how to install Microsoft's SQL Server on Ubuntu 16.04.
Learn how to get help with Linux/Unix bash shell commands. Use help to read help documents for built in bash shell commands.: Use man to interface with the online reference manuals for shell commands.: Use man to search man pages for unknown command…
Connecting to an Amazon Linux EC2 Instance from Windows Using PuTTY.
Suggested Courses

627 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question