we have an unix system which has
load average normally about 20.
but while i am running a particular unix batch which performs heavy
operations on filesystem and database average load
reduces to 15.
how can we explain this situation?
while running that batch idle cpu time is about %60-65... (0 Replies)
Hello all, I have a question about load averages.
I've read the man pages for the uptime and w command for two or three different flavors of Unix (Red Hat, Tru64, Solaris). All of them agree that in the output of the 2 aforementioned commands, you are given the load average for the box, but... (3 Replies)
Hello, Here is the output of top command. My understanding here is,
the load average 0.03 in last 1 min, 0.02 is in last 5 min, 0.00 is in last 15 min.
By seeing this load average, When can we say that, the system load averge is too high?
When can we say that, load average is medium/low??... (8 Replies)
Hi,
i have installed solaris 10 on t-5120 sparc enterprise.
I am little surprised to see load average of 2 or around on this OS.
when checked with ps command following process is using highest CPU. looks like it is running for long time and does not want to stop, but I do not know... (5 Replies)
Hello AlL,..
I want from experts to help me as my load average is increased and i dont know where is the problem !!
this is my top result :
root@a4s # top
top - 11:30:38 up 40 min, 1 user, load average: 3.06, 2.49, 4.66
Mem: 8168788k total, 2889596k used, 5279192k free, 47792k... (3 Replies)
Hi ,
I am using 48 CPU sunOS server at my work.
The application has facility to check the current load average before starting a new process to control the load.
Right now it is configured as 48. So it does mean that each CPU can take maximum one proces and no processe is waiting.
... (2 Replies)
Hi,
I am getting a high load average, around 7, once an hour. It last for about 4 minutes and makes things fairly unusable for this time.
How do I find out what is using this. Looking at top the only thing running at the time is md5sum.
I have looked at the crontab and there is nothing... (10 Replies)
Here we go....
Preface:
..... so in a galaxy far, far, far away from commercial, data sharing corporations.....
For this project, I used the ESP-WROOM-32 as an MQTT (publish / subscribe) client which receives Linux server "load averages" as messages published as MQTT pub/sub messages.... (6 Replies)
Discussion started by: Neo
6 Replies
LEARN ABOUT REDHAT
smartctl
SMARTCTL(8) System Manager's Manual SMARTCTL(8)NAME
smartctl - S.M.A.R.T. control utility
SYNOPSIS
smartctl [-cdeglostv] [device]
DESCRIPTION
smartctl controls the Self-Monitoring, Analysis and Reporting Technology System(S.M.A.R.T.) built into ATA-3 and later IDE and SCSI-3 Hard
Drives. This is used to check the reliability of the hard drive and predict drive failures. TapeAlerts support for SCSI tape drives and
changers smartctl is command line utility designed to perform simple S.M.A.R.T. tasks.
OPTIONS
smartctl accepts two agruments, options and device in respective order. The options begin with a '-' and multiple options should be begun
with a single '-'. The second argument is the device to be controled. ATA device use the form "/dev/hd*" and SCSI devices use the form
"/dev/sd*". SCSI devices use only options a,i,c,e,d. For SCSI Tape Drives and Changers with TapeAlerts support use the form "/dev/st*" and
"/dev/sg*". TapeAlerts devices use only a,i,c,e,d.
i Check if the device supports S.M.A.R.T
c Check if device has any S.M.A.R.T. Warranty Failures
g Prints only the generic S.M.A.R.T. attributes
v Prints only the vendor specific S.M.A.R.T. attributes
t Prints only the vendor specific S.M.A.R.T. thresholds
l Prints only the S.M.A.R.T. error log
a Prints all parameters for c,i,g,v,t,l (for SCSI c,i)
e Enables S.M.A.R.T. on device
d Disables S.M.A.R.T. on device
t Enables S.M.A.R.T. automatic offline self test timer which scans the drive every four hours for disk defects.
T Disables S.M.A.R.T. automatic offline self test timer
O Runs S.M.A.R.T. Immediate off-line Test
S Runs S.M.A.R.T. Short Self Test ( usually under ten minutes)
s Runs S.M.A.R.T. Short Self Test in Captive Mode.
( WARNING: This test will busy out drive for length of test. Only run this on drives without any mounted partitions.)
X Runs S.M.A.R.T. Extended Self Test ( tens of minutes)
x Runs S.M.A.R.T. Extended Self Test in Captive Mode. ( WARNING: This test will busy out drive for length of test. Only run this on
drives without any mounted partitions.)
A Aborts Non-Captive S.M.A.R.T. Tests.
EXAMPLES
smartctl -a /dev/hda - prints all S.M.A.R.T. infomration for drive /dev/hda (Primary Master)
smartctl -d /dev/hdd - disable S.M.A.R.T. on drive /dev/hdd (Secondary Slave)
AUTHOR
Michael Cornwell, cornwell@acm.org
Concurrent Systems Laboratory
Jack Baskin School of Engineering
University of California Santa Cruz
http://csl.cse.ucsc.edu/
smartctl-2.1 September 13, 2001 SMARTCTL(8)