?
Solved

Linux I/O analyze - part 2

Posted on 2013-01-25
2
Medium Priority
?
561 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
2 Comments
 
LVL 11

Accepted Solution

by:
Chris Sandrini earned 2000 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

Get expert help—faster!

Need expert help—fast? Use the Help Bell for personalized assistance getting answers to your important questions.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

In the first part of this tutorial we will cover the prerequisites for installing SQL Server vNext on Linux.
Cron is one of the most popular and basic utilities found on Unix systems. Combined with other tools, cron makes it exceptionally easy to automate a broad range of tasks on your server.
This video shows how to set up a shell script to accept a positional parameter when called, pass that to a SQL script, accept the output from the statement back and then manipulate it in the Shell.
Connecting to an Amazon Linux EC2 Instance from Windows Using PuTTY.

568 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