General :: Iostat To Print Disk Usage Speed?
Jul 29, 2011
Trying to understand grep,sed,awk but maybe its too early for me and also i suspect iostat is not the correct program for exactly what i'm looking for...The goal is to print only the current read and write speeds of the disk, represented in a numerical value with two separated commands. So for example when writing a file to disk from an external disk, the value reflects the speed of the process.
"iostat -dk sda" prints
Code:
Linux 2.6.38 (Infidel) 07/30/2011 _x86_64_ (4 CPU)
[code]....
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Mar 15, 2010
I was trying to get the status of memory usage and disk usage using sigar in windows and ubuntu. done this in windows by just copying the sigar library into jdk library. But i was unable to do so in ubuntu. I've copied the library to java-6-sun library but still can't run the program.
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Dec 10, 2010
I'm running into a problem where my system is running out of disk space on the root partition, but I can't figure out where the runaway usage is. I've had a stable system for a couple of years now, and it just ran out of space. I cleaned some files up to get the system workable again, but can't find the big usage area, and I'm getting conflicting results.For example, when I do a df it says I'm using 44GB out of 58 GB:
Code:
[root@Zion ~]# df -h
Filesystem Size Used Avail Use% Mounted on
[code]....
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Dec 8, 2010
I need to write a wrapper script for iostat functionality . in solaris unix i have iostat but in linux i don't have iostat , so I need to write a wrapper script which does all the functionality of iostat . i am entirely new to scripting
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Sep 3, 2010
when we use the df command it list the disk usage list for all mounted files ..
#df -h
/dev/sda4 47G 34G 11G 78% /
varrun 1009M 120K 1009M 1% /var/run
[code]....
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Jul 31, 2010
i am facing problem of space usage by unknown file on /var partition.
[root@test var]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda2 20G 3.3G 16G 18% /
/dev/sda5 39G 36G 769M 98% /var
/dev/sda6 15G 4.7G 9.1G 34% /var/spool/squid
/dev/sda1 487M 16M 446M 4% /boot
tmpfs 1014M 0 1014M 0% /dev/shm
where as when I checked the using du -sh in its maximum utilization is about 5.9GB. i want to know the space being utilized by whom.
[root@test /]# du -sh /var
5.9G /var
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Mar 25, 2010
I am trying to get the total file size for certain files per directory.
I am using
find `pwd` /DirectoryPath -name '*.dta' -exec ls -l {} ; | awk '{ print $NF ": " $5 }' > /users/cergun/My Documents/dtafiles.txt
but this lists all the files in the directories.
I need the total per directory for all dta files.
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Mar 16, 2010
I am trying to get my head around my new server. I am using CENTOS 5.4 x86_64 with 300GB harddrive.
The 300 GB been partitioned with the following:
Device Size Used Available Percent Used Mount Point
/dev/md0 99M 18M 77M 19% /boot
/dev/md1 16G 8.7G 5.8G 61% /
/dev/md2 246G 40G 194G 18% /home
/dev/md3 4.8G 1.6G 3.0G 35% /var
/usr/tmpDSK 3.9G 432M 3.3G 12% /tmp
I have increased teh tmpDSK as it was getting full very quickly. My question is, what are these md0; md1, md2 and md3 are they harddrive partitions and as md1 is getting full will that have an impact on my sites.
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Aug 18, 2010
How do I get Ubuntu's "Disk Usage Analyzer" to show me the hidden files?
It tells me my home dir uses 3GB, but only accounts for 525MB (the results of du -shc *). Can I get it to show me the other files that are using the space?
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Jan 7, 2010
how to Check the disk usage of different linux servers using df -h linux command. My host server is 66.50.100.1, I can check its disk usage by using df -h command. I got my disk usage. Now using my host server Im going to check the server 66.50.100.3 disk usage. Is its possible to check the disk usage of 66.50.100.3 using my host server?
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Mar 26, 2009
I've been trying to identify all files on my cut-down version of Damn Small which contain the text string "User Agent:" in them. Because it's only 120Mb in its entirety, I'm quite happy to have grep search the whole system. I'm using this command, but it just generates errors as you can see:
[root@localhost ~]# grep -R 'User Agent:' /*
grep: /dev/dri/card0: Invalid argument
grep: /dev/fuse: Operation not permitted
[code]....
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Dec 14, 2010
How do I check my hard disk Revolutions Per Minute (RPM) speed from a Linux shell prompt without opening my server case?
I referenced some other articles. they give only model number, serial number and disk space, but I need Hard disk RPM speed using shell script. any other Java program
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Apr 12, 2011
Is there a command to check specific processes that's using the most IO/disk usage? I know sar and ps but I want more specific details on IO on individual processes
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Feb 26, 2011
Some thing is using up a huge amount of my disk space about 10G and I can not determine what it is. When I look at my disk usage in system monitor it say I have used about 25G and when I scan the directory in disk usage analyzer the entire file system used is 15G.
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May 16, 2011
I want to find all users shown in the /home/ directory whose disk consumption is more than 500MB. The following command works as expected.
cd /home/ && du */ -hs
68K ajay/
902M john/
250M websites/
From the above example, only 902M john/ should be returned.
How can I make the find command output the same results?
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Sep 4, 2010
My problem is extremely slow write on hard disk and 100% cpu usage and it happens when I want to write something on the hard derive not any other external derive.
Tried a fresh ubuntu install. No change. I am not even sure if it is a software or hardware problem.
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Mar 27, 2011
i have amd athlon x2 3gb RAM ddr2 two hdd one 80gb other 1tb in this computer i got only ubuntu all disk in EXT4.i want to copy 10gb many file of 700mb or 1gb ( many linux ISO )the transfer is 1mb/s this is SOOO SLOW.i did a touch /forcefsck just in case but nothing happen it is still slow!!what might be the problem ??
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Dec 4, 2010
I am playing with my new 5 disk 2TB software RAID 5 setup and after I had a hard drop out, I deleted the RAID set and recreated it with only 4 drives. I am working on getting the other drive included by doing a grow. (I hope)
The RAID is now rebuilding and seems to average a write speed of around 87 meg/sec, with lows in the high 60's to highs in the mid 90's but mostly in the higher 80's. But it is only showing about 16% CPU usage and maybe a second usage of around 7%.
Is this normal? It seems low to me, but it is a a quad core 2.5 GHZ processor. Screen shots attached.Is it "normal" for software RAID to drop a drive? I thought that was only a hardware RAID issue. Coder68
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Jul 19, 2011
I have a RHEL5 server that hosts an apache SSL proxy and about 20 tomcat instances. As of late we've had latency issues on the system that I can't pin down. In trying to diagnose whether the local HD is being over-utilized, I started gathering disk utilization stats using iostat and sar. For Sar, I'm using the "tps" metric, and for IOStat I'm combining reads and writes per second for the raw disk device, sda. When I put the stats into excel, the profile of the graphed data points match up for the most part, but sar is reporting the values for the same data points as being many magnitudes higher. Can anybody give me a hint as to why one tool would report the same data differently when (as far as I know) both of them pull their disk I/O stats from the same place?
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Nov 15, 2010
Is there any way to monitor one process' CPU usage and RAM usage over time on Linux? I am trying to change to a cheaper VPS and need to work out what level of CPU and RAM I need!
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Jun 13, 2011
Can anyone explain this output? I'm not sure what to make of it. 36% usage and no files??
root@host:/backups# ls -la
total 8
drwxr-xr-x 2 root root 4096 Mar 8 20:12 .
[code]....
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Mar 22, 2011
I need to install Fedora on 4GB SDHC card, so the space is limited.My question is what files (documents, manuals, temporary files, logs, unused packages etc) I can remove, without harming the system?So far I cleaned /tmp, /var/log, trash what else?
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Jan 3, 2010
I realize bleachbit is supposed to "clean files", but my disk usage is at 11.8%. My disjk usage was at like 6.0%. How in the world did it jump so much? It doesnt appear to be right. The only thing I did not check were the Firefox checkboxes..
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Feb 25, 2010
Is there a CLI version of the Disk Usage Analyzer?
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Oct 29, 2010
I have benn using ubuntu on an old laptop to run a samba server and a torrent server and it has been working fine till a few days ago when it stopped letting me write any files to the disk, So i tried deleting some of the files i no longer needed to free up some space and the disk usage didnt decrease so i checked it out using the disk usage analyzer and it says its full but i know for sure its not.
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Apr 3, 2011
How can i limit disk space usage for one user? Like.. User john123, you can only use 100mb of my harddisk. User jake155, you can only use 250mb of my harddisk.
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Jan 9, 2010
The command time shows the time taken by a command to complete. Is there a command that shows the change in disk usage caused by a command? I would like to know how large a package is when I install it from source.
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Mar 26, 2010
I am trying to get the total file size for certain files per directory.I am usingfind `pwd` /DirectoryPath -name '*.dta' -exec ls -l {} ; | awk '{ print $NF ": " $5 }' > /users/cergun/My Documents/dtafiles.txtbut this lists all the files in the directoriesI need the total per directory for all dta files.
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May 27, 2009
I want to get the disk space usage of each user on the machine. I Have found the command -du but how can I consultate the usage per user? The only thing I can is to consultate the usage of maps...
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Jan 24, 2011
how to check which process consuming a lot of HDD I/O ? Do You know any good command which can show me which process saving something big on the storage system ? "iostat" or maybe "ps" ? Would be great if somebody could past me here nice command.
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