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uptime output

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gany59
Regular Advisor

uptime output

Hi
could any one tell what is the exact meaning for this uptime command output. 3:04pm up 4 day(s), 10:37, 16 users, load average: 0.11, 0.10, 0.12 .Thanks in advance.. Points assured
8 REPLIES
Steven E. Protter
Exalted Contributor

Re: uptime output

Shalom,

System as been up 4 days 10 hours 37 minutes since last boot.

The load average is for three different measurement periods, 15 30 and 60 minutes if memory serves me.

SEP
Steven E Protter
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
James R. Ferguson
Acclaimed Contributor

Re: uptime output

Hi:

# man uptime

http://docs.hp.com/en/B2355-60130/uptime.1.html

...in particular, at the top of the page under "Description".

Regards!

...JRF...
gany59
Regular Advisor

Re: uptime output

Hi steve

Could u explain the output of the sar-d command and i how can i come to know which disk is busy and how to know the disk is busy... Thanks in Advance

00:00:00 device %busy avque r+w/s blks/s avwait avserv
00:10:00 c2t6d0 6.29 0.56 7 109 4.91 18.07
c3t6d0 4.42 0.53 6 105 4.78 13.18
c21t11d0 0.00 0.50 0 1 3.22 0.71
00:20:00 c2t6d0 5.01 0.55 6 100 5.03 18.12
c3t6d0 3.62 0.52 5 97 4.85 14.16
00:30:00 c2t6d0 4.42 0.73 5 98 6.11 18.31
c3t6d0 3.27 0.70 5 96 5.63 14.67
c21t10d4 0.00 0.50 0 1 2.40 0.83
c21t11d0 0.00 0.50 0 0 1.82 0.70
James R. Ferguson
Acclaimed Contributor

Re: uptime output

Hi (again):

It amazes me that so many folks are so reticent to READ the manpages! You could actually get a faster answer yourself.

...JRF...
Steven E. Protter
Exalted Contributor

Re: uptime output

Shalom,

As JRF says, RTFM.

My answer came from a Linux man page on uptime. I was too lazy to start up my hp-ux box.

SEP
Steven E Protter
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
R.K. #
Honored Contributor
Solution

Re: uptime output

Hello,

In my serevr...
08:00:00 device %busy avque r+w/s blks/s avwait avserv
08:00:02 c2t0d0 1.49 0.50 2 32 0.01 13.94
08:00:04 c2t0d0 1.50 0.50 2 32 0.01 12.40


Average c2t0d0 1.50 0.50 2 32 0.01 13.17


"avwait" should be less than "avserv" ie wait time should be less than service time.
"avque" should be less than 0.50 as far as I know.

Check these for your disks.

Refer man pages for exact meaning of the terms.

Regds,
R.K.
Don't fix what ain't broke
Pintu Bhagat
Occasional Advisor

Re: uptime output

Hi Gany,

I would prefer to go and check with man pages
Suraj K Sankari
Honored Contributor

Re: uptime output

Hi,
As every one said always try to find out in man pages if you didn't understan then you can ask at forum.

here is the ans
>>Could u explain the output of the sar-d command and i how can i come to know which disk is busy and how to know the disk is bus
-d is for Monitor disk activity

Report activity for each block device (for example, disk or tape drive) with the exception of XDC disks and tape drives. When data is displayed, the device specification dsk- is generally used to represent a disk drive. The device specification used to represent a tape drive is machine dependent. The activity data reported is:

%busy, avque
portion of time device was busy servicing a transfer request, average number of requests outstanding during that time.

read/s, write/s, blks/s
number of read/write transfers from or to device, number of bytes transferred in 512-byte units.

avwait
average wait time in milliseconds.

avserv
average service time in milliseconds.

Suraj