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How to increase "SHARED MEMORY"

Posted 09-17-2013 at 03:17 AM by pantdk

=> INCREASE SHARED MEMORY

1) Check the requirement of the user - say it is 75 % of RAM

2) Check RAM (free -m)

3) Calculate new shared memory size, 75 % in our example - say it is 105 G

4) Follow below steps

# sudo cp -p /etc/fstab /etc/fstab_`date +%d-%m-%Y`

# sudo vim /etc/fstab

tmpfs /dev/shm tmpfs defaults,size=107520m 0 0

#...
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Old

LFS-7.4 and BLFS-7.4

Posted 09-16-2013 at 08:40 PM by ReaperX7

I've been tinkering with a build of LFS-7.4 and BLFS-7.4 (basically a post-Developer release of the SVN edition I have), and have learned a lot of GNU/Linux as of late.

Currently I'm in the middle of Chapter 24 X-Windows system and just finished building the xorg drivers before I left for work.

I've also gotten partially through Chapter 4 Security, but I want to wait until I get X11 up and running with Xfce and all apps especially Midori Browser, installed through a...
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Old

Multipath disk identify

Posted 09-16-2013 at 02:57 AM by pantdk
Updated 01-01-2014 at 01:14 PM by pantdk

To find the fiber port & model name in the server.
$sudo /sbin/lspci |grep -i "Fibre"

$ sudo /usr/bin/systool -c scsi_host -v "
$ sudo /usr/bin/systool -c fc_host -v "port name node name"

WWN & WWPN
We have Two HBA here example (host0 and host1).

To get the WWNN (World Wide Node Number) in Linux:

dpant# cat /sys/class/fc_host/host0/node_name
0x20000000c9538d93
dpant#...
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Old

Step By Step Ubuntu 13.04 (Raring Ringtail) LAMP Server Setup

Posted 09-12-2013 at 09:55 AM by sridhar11

In around 15 minutes, the time it takes to install Ubuntu Server Edition, you can have a LAMP (Linux, Apache, MySQL and PHP) server up and ready to go. This feature, exclusive to Ubuntu Server Edition, is available at the time of installation.The LAMP option means you don’t have to install and integrate each of the four separate LAMP components, a process which can take hours and requires someone who is skilled in the installation and configuration of the individual applications. Instead, you get...
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Old

openSUSE screen blanking!!!

Posted 09-11-2013 at 12:47 PM by nobahn (Learning Linux on OpenSUSE 12.3 (and seeking help!))
Updated 09-11-2013 at 01:03 PM by nobahn

So, OK: I'm sitting at my computer reading my textbook. When I look up, I'll occasionally see a rectangle being briefly shown with a percentage; if I move the mouse, then the rectangle will reappear and the percentage will go to 100%. If the rectangle shows up with 0%, then the screen will blank and I have to reboot.

THIS IS DRIVING ME NUTS!!!
LQ Newbie
Posted in Uncategorized
Views 284 Comments 0 nobahn is offline

  



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