Red Hat

Some of my file systems become read only. I want to find out when that happend. I checked /var/log/messages on that server and I dont see anything there. Is there any other ways to check that. I really need to find out when and how that happend.

Thanks

ext3 filesystems will turn readonly when the disk is going bad - often because the pool of replacement disk blocks is exhausted - whatever - this is a bad sign.

Try running

Code:

smartctl -a

on your disks - if they are newer ATA disks since 2006 I think. look into smartd to prevent this in the future.
Get a full backup of the disks NOW. Before the disk fails completely.

Thanks for your reply. We jsut reboot the server to get file systems back to r/w. thats fine now. I just want to find out when and how that happend. Is there any specific logs to find out. Thanks

You missed my point. Your disks are dying. Rebooting is not solving the problem.
You said the messages were not in your syslog, right? That means you need to start the smartd daemon which will give you that information.

Did you try smartctl - that will tell you, too? Being a sysadmin means being proactive - preventing disaster, not recovering from it.

What type of disks? ATA, SATA?

Since it is Vmware environment, and this issue also related to VMware (plz see below link), we just want to find out when/why that happend. so that we can make nessasary steps to prevent this in the future. For now it seems to be ok.

VMware Knowledge Base - View Document

I dont think smartctl tool has been installed on my servers. I think with this tool we can monitor future events(?). Since Im not much expertised on all of these things, just trying to get it.