topic Re: file system question in Operating System - Linux

file system question

navin — Tue, 09 Feb 2010 20:04:59 GMT

Hi running linux OS , oracle with service gaurd.one of the file system says "read only file system" when attempting write.any idea?
thanks

Re: file system question

Steven E. Protter — Tue, 09 Feb 2010 20:21:04 GMT

Shalom,

This would indicate a file system has problems and is now mounted read only. This will prevent significant database rights.

Take a look at /etc/mtab

For information on mount

SEP

Re: file system question

navin — Tue, 09 Feb 2010 20:29:21 GMT

those are seems be mounted as rw. and i did umount and remount it worked for few min again same error

Re: file system question

Steven Schweda — Tue, 09 Feb 2010 20:36:26 GMT

I know nothing, and "linux OS" is not a
particularly precise description of the OS
here, but some operating systems will disable
write access to a file system if there the
associated disk hardware logs many errors.

> [...] worked for few min again same error

Could be a hardware problem. Have you looked
for hardware errors in the system log
file(s)?

Re: file system question

Steven E. Protter — Tue, 09 Feb 2010 23:22:11 GMT

Shalom,

This is likely the result of a hardware problem.

I would not necessarily trust this disk(array?) and would take a cold backup as soon as possible.

SEP

Re: file system question

Saravana Kuppusamy — Wed, 10 Feb 2010 03:02:47 GMT

Hi there,

what is the linux version?what is the filesyetem typr you have?i think you may need a kernel update but reboot will fix the issue temporaryly

Re: file system question

J. Maestre — Wed, 10 Feb 2010 08:22:49 GMT

As pointed out already Linux will mount file systems read-only when it detects disk errors, in order to prevent your data going completely fubar.

It could be as simple as some file system inconsistencies in need of a fsck, but I would take a backup as soon as possible just in case.