Hello Experts, i'm stuck with some silly problme here with for, not sure where i'm doing wrong. can somebody point me my mistake in the above script?
:: two arguments i'm taking are end (which tels how many secs to run) and interval (which tells the interval of every run of iostat)
the above script runs fine on linux but not on 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)
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)
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)
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)
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)
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)
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)
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)
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)
IOSTAT(8) BSD System Manager's Manual IOSTAT(8)NAME
iostat -- report I/O statistics
SYNOPSIS
iostat [-CdKIoT?] [-c count] [-n devs] [-w wait] [drives]
DESCRIPTION
Iostat displays kernel I/O statistics on terminal, device and cpu operations. The first statistics that are printed are averaged over the
system uptime. To get information about the current activity, a suitable wait time should be specified, so that the subsequent sets of
printed statistics will be averaged over that time.
The options are as follows:
-c Repeat the display count times. If no wait interval is specified, the default is 1 second.
-C Display CPU statistics. This is on by default, unless -d is specified.
-d Display only device statistics. If this flag is turned on, only device statistics will be displayed, unless -C or -T is also specfied
to enable the display of CPU or TTY statistics.
-I Display total statstics for a given time period, rather than average statistics for each second during that time period.
-K In the blocks transferred display (-o), display block count in kilobytes rather then the device native block size.
-n Display up to devs number of devices. iostat will display fewer devices if there aren't devs devices present.
-o Display old-style iostat device statistics. Sectors per second, transfers per second, and miliseconds per seek are displayed. If -I
is specified, total blocks/sectors, total transfers, and miliseconds per seek are displayed.
-T Display TTY statistics. This is on by default, unless -d is specified.
-w Pause wait seconds between each display. If no repeat count is specified, the default is infinity.
-? Display a usage statement and exit.
Iostat displays its information in the following format:
tty
tin characters read from terminals
tout characters written to terminals
devices
Device operations. The header of the field is the device name and unit number. iostat will display as many devices as will fit in a
standard 80 column screen, or the maximum number of devices in the system, whichever is smaller. If -n is specified on the command
line, iostat will display the smaller of the requested number of devices, and the maximum number of devices in the system. To force
iostat to display specific drives, their names may be supplied on the command line. iostat will not display more devices than will fit
in an 80 column screen, unless the -n argument is given on the command line to specify a maximum number of devices to display, or the
list of specified devices exceeds 80 columns. If fewer devices are specified on the command line than will fit in an 80 column screen,
iostat will show only the specified devices.
The standard iostat device display shows the following statistics:
KB/t kilobytes per transfer
tps transfers per second
MB/s megabytes per second
The standard iostat device display, with the -I flag specified, shows the following statistics:
KB/t kilobytes per transfer
xfrs total number of transfers
MB total number of megabytes transferred
The old-style iostat display (using -o) shows the following statistics:
sps sectors transferred per second
tps transfers per second
msps average milliseconds per transaction
The old-style iostat display, with the -I flag specified, shows the following statistics:
blk total blocks/sectors transferred
xfr total transfers
msps average milliseconds per transaction
cpu
us % of cpu time in user mode
sy % of cpu time in system mode
id % of cpu time in idle mode
EXAMPLES
iostat -w 1 disk0 disk2
Display statistics for the first and third disk devices device every second ad infinitum.
iostat -c 2
Display the statistics for the first four devices in the system twice, with a one second display interval.
iostat -Iw 3
Display total statistics every three seconds ad infinitum.
iostat -odICTw 2 -c 9
Display total statistics using the old-style output format 9 times, with a two second interval between each measurement/display. The -d flag
generally disables the TTY and CPU displays, but since the -T and -C flags are given, the TTY and CPU displays will be displayed.
SEE ALSO fstat(1), netstat(1), nfsstat(1), ps(1), pstat(8),
The sections starting with ``Interpreting system activity'' in Installing and Operating 4.3BSD.
HISTORY
This version of iostat first appeared in FreeBSD 3.0.
BSD September 27, 2001 BSD