When SANS Storage Having A Fever

When Centos (Its can be applied to other linux Distros) having problem to mount a file system in /etc/fstab when operating system boot, it will go into maintainance mode.

You can just enter the root password and run command fsck


but in this case the fiber channel card dead.

I need to bypass the file system until the fiber card replace. There is one problem. Under mantainance mode / root file system is only read only.

mount -o remount /

command to make / with read write mode. Manage to edit the /etc/fstab and remark the line needed and manage to reboot the system.

Then when the fiber channel replace. The volume group not detected. Haiya. What now.

due to error lvm will remove the vg from active list. Used this commands

pvscan

vgscan

vgchange -ay

making sure the volume group you want in the information.

Malaysia Open Source Developers' Club OSDC.my

Malaysia Open Source Developers' Club OSDC.my


About OSDC.my

Malaysia Open Source Developer's Club or in short known as OSDC.my is a community based club open for all enthusiastic Open Source developers and users across Malaysia. OSDC.my is a new chapter that has been brought under Malaysia Special Interest Groups, MySIG for all developers to share their thought, knowledge and experience and leverage the Open Source idea to public.

Objectives

A platform for Malaysian developers to engage with developers from other countries.
Provide a platform for Malaysian developers to leverage their ideas/thoughts to the public.
To produce world class developers in Malaysia.
To gain public interest towards Open Source development in Malaysia.

osdc.my Opening Chapter in Malaysia on June 1st, 2009. At Berjaya Times Square.

Official website http://www.osdc.my/

Facebook Fan page

OSDC.my Mailing List

Facebook Group

Archiving OSDC.my discussion lists and websites



Linux Performance Tuning

Links to my resources for Linux Performance Tunning. My team need to figure out why a server is slowing down with increase of memory its still the same. We are still in fact finding and getting more information.

http://www.psc.edu/networking/projects/tcptune/

http://fasterdata.es.net/TCP-tuning/linux.html

http://www.csm.ornl.gov/~dunigan/netperf/auto.html

http://patchwork.ozlabs.org/patch/24296/

http://blog.xanda.org/?p=428

http://www.cyberciti.biz/faq/linux-tcp-tuning/

Video During MSC Malaysia Open Source Conference 2009 Dinner

Video During MSC Malaysia Open Source Conference 2009 Dinner


Launching of OSDC.my by Tun Dr. Mahathir Mohamad

Launching of OSDC.my by Tun Dr. Mahathir Mohamad

http://www.osdc.my/

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