file system question

[navin]

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

[Steven E. Protter · Accepted solution]

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

[navin]

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

[Steven Schweda]

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)?

[Steven E. Protter]

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

[Saravana Kuppusamy]

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

[J. Maestre]

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.