10 More Discussions You Might Find Interesting
1. Solaris
I have Big brother script, which start/stop Big Brother processes. Something got change on server and now I am not able to start/stop it. There is no change in script, as I compared it from other server. This service is being managed by bb user (group is also bb).
root@tsazdq04:/#... (6 Replies)
Discussion started by: solaris_1977
6 Replies
2. Solaris
Hi Everyone,
I try to calculate the total hard disk space of a solaris machine using iostat -En command. Iterating the output and summing up all the number present near the Size: will give the exact size of the harddisk. But it is not working for a machine.
This command works in many flavors... (2 Replies)
Discussion started by: prasankn
2 Replies
3. AIX
Hello, I support Oracle 11g on AIX 7.1.
Using the command
$iostat -D hdisk2 hdisk4 hdisk5 5
I get the following output:
hdisk5 xfer: %tm_act bps tps bread bwrtn
44.0 1.4M 178.2 1.4M 14.7K
read: ... (3 Replies)
Discussion started by: oracledba1024
3 Replies
4. UNIX for Advanced & Expert Users
Hi ,
I am new to scripting. please help me out how to write a script to monitor cpu , vmstat, iostat in Redhat linux. we are doing the load test.
Thanks in advance !!!! (1 Reply)
Discussion started by: saanvi
1 Replies
5. Shell Programming and Scripting
Does anyone have an example of IOSTAT -eE in a script???????
Need to see the syntax in a script (4 Replies)
Discussion started by: walnutpony123
4 Replies
6. Shell Programming and Scripting
Hi Gurus
I have several SAN's in two different locations. I collect performance data and archive them. In one location the archiving script runs on a solaris 9 server and in the other on a solaris 10 server. But the script fails every day on the solaris 10 server with this
mes6=`/usr/bin/du -sk... (5 Replies)
Discussion started by: gnom
5 Replies
7. Red Hat
A find for the "iostat" command on a redhat 5 update 4 comes back with no results.
Any separate rpm needs to be installed to get the binary for this ?
Thanks in advance. (1 Reply)
Discussion started by: uxadmin007
1 Replies
8. Shell Programming and Scripting
Friends.
I have to compare iostat -x output with a tool on solaris. Now there is column called wait in the output field which is showing zero. Now, in order to create some load on my system this is what i am doing
I am creating a file using dd command , the size of which is... (5 Replies)
Discussion started by: achak01
5 Replies
9. AIX
Hi All AIX expert
i'm using AIX 5.2
When i execute this command which is :
----------------------------------------------------------------------
>> iostat -a
System configuration: lcpu=4 disk=30
tty: tin tout avg-cpu: % user % sys % idle % iowait
... (2 Replies)
Discussion started by: adzuanamir
2 Replies
10. Filesystems, Disks and Memory
All,
I am attempting to help tune a Sun for better performance (mainly for SAS 9.1), and have found indicators pointing to poor I/O utilization. I have run iostat -cx, and found one device in particular where the %w is in the 90's during processing. I have a feeling that this is where the SAS... (3 Replies)
Discussion started by: dj_is
3 Replies
IOSTAT(1) General Commands Manual IOSTAT(1)
NAME
iostat - report I/O statistics
SYNOPSIS
iostat [ drives ] [ interval [ count ] ]
DESCRIPTION
Iostat iteratively reports the number of characters read and written to terminals per second, and, for each disk, the number of transfers
per second, kilobytes transferred per second, and the milliseconds per average seek. It also gives the percentage of time the system has
spent in user mode, in user mode running low priority (niced) processes, in system mode, and idling.
To compute this information, for each disk, seeks and data transfer completions and number of words transferred are counted; for terminals
collectively, the number of input and output characters are counted. Also, each sixtieth of a second, the state of each disk is examined
and a tally is made if the disk is active. From these numbers and given the transfer rates of the devices it is possible to determine
average seek times for each device.
The optional interval argument causes iostat to report once each interval seconds. The first report is for all time since a reboot and
each subsequent report is for the last interval only.
The optional count argument restricts the number of reports.
If more than 4 disk drives are configured in the system, iostat displays only the first 4 drives, with priority given to Massbus disk
drives (i.e. if both Unibus and Massbus drives are present and the total number of drives exceeds 4, then some number of Unibus drives will
not be displayed in favor of the Massbus drives). To force iostat to display specific drives, their names may be supplied on the command
line.
FILES
/dev/kmem
/vmunix
SEE ALSO
vmstat(1)
4th Berkeley Distribution April 29, 1985 IOSTAT(1)