topic Re: System hang in Operating System - Linux

System hang

nasmel — Thu, 18 Jan 2007 06:03:42 GMT

Recently i added two disks into my linux box.its configured with RAID 1(H/W raid).After adding these two disks everyday morning my system is getting hanged,after rebboting itworks normally.
what will be the problem

Re: System hang

Ivan Ferreira — Thu, 18 Jan 2007 09:36:03 GMT

Do you see something relevant in /var/log/messages?

Before adding the HW RAID, was the RAID Controller active? That is, before adding the disks did you have a RAID already (for os or data)?

Re: System hang

nasmel — Thu, 18 Jan 2007 16:12:12 GMT

i couldnt find anything related to disk in var/log/messages,there r some entreis regarding the crond.
The system was running RAID 1 before am adding new disk.I configured another Raid 1 and added two disks to that RAID.

Re: System hang

Ivan Ferreira — Thu, 18 Jan 2007 16:26:48 GMT

You should configure a remote syslog server. This because there could be the situation where the log cannot be registered because you cannot write to the disk because an I/O hang.

You should try updating your kernel module for the hardware raid controller or your kernel itself if the module is alredy included.

What is your raid controller model? Are the RAIDs in the right status (sync)?

Re: System hang

George Liu_4 — Fri, 19 Jan 2007 15:46:32 GMT

any error on the console? Sometimes error message may not be logged by syslog.

Re: System hang

TANHM — Tue, 30 Jan 2007 04:43:09 GMT

Most properly is the controller issue. Please check on bios level, check whether the controller is being installed & configured properly.