Become Read-only system

[hangyu]

It is strange that my system suddenly become a read-only system , I can't read anything to the system , the below is the output , can advise what is wrong ? thx


#ll
ls: edp1: Input/output error

#touch testfile
touch: creating `testfile': Read-only file system

[Ivan Krastev · Accepted solution]

Try to unmount file system and run fsck to check for errors.
Possible causes for this is disk or controller failures.


regards,
ivan

[hangyu]

thx reply ,

the path is mounted on the SAN , it happened for few times already , what is the possible reason , is the problem of SAN or OS ? thx

[Ivan Krastev]

Ask your SAN and network support for more information about recent failures. Also check hardware in server - special fiber channel cards used for SAN connection. See for entries in /var/log/messages and other log files.


regards,
ivan

[sathish kannan]

Hi Hangyu,

I have heard similar issues recentl with REDHAT. It's definetly not an SAN issue. I also heard REDHAT is aware of this and working on this issue. Did you talk to them?

All the best


Sathish

[Sheriff Andy]

It doesn't sound like it could be this, but what happens when you run;
# mount -v

[Steven E. Protter]

Shalom,

1) Recommend using yum or up2date to fully update your systems.
2) Get the latest SAN drivers installed and make sure the array controller is fully up to date.

SEP

[Silju]

Hi Hangyu,

Hope you HBA is Qlogic.

Can try to upgrade the firmware with the latest one.

Regards
Silju