Solved

Linux Production Server error

Posted on 2011-03-07
3
459 Views
Last Modified: 2012-08-13
we have a oracle database and apps server separately and today there was a problem loggin in .
we restarted the database and apps (both linux servers) and still not able to

we then checked the logs in servers
ccd/var.log.messages

in db we coundt find any error but in apps we found that following error
Mar  8 09:09:02 prodapps kernel: Buffer I/O error on device hdc, logical block 128
Mar  8 09:09:02 prodapps kernel: Buffer I/O error on device hdc, logical block 129
Mar  8 09:09:02 prodapps kernel: Buffer I/O error on device hdc, logical block 130
Mar  8 09:09:02 prodapps kernel: Buffer I/O error on device hdc, logical block 131
Mar  8 09:09:02 prodapps kernel: Buffer I/O error on device hdc, logical block 132
Mar  8 09:09:02 prodapps kernel: Buffer I/O error on device hdc, logical block 133
Mar  8 09:09:02 prodapps kernel: Buffer I/O error on device hdc, logical block 134
Mar  8 09:09:02 prodapps kernel: Buffer I/O error on device hdc, logical block 135
Mar  8 09:09:02 prodapps kernel: Buffer I/O error on device hdc, logical block 136
Mar  8 09:09:02 prodapps kernel: Buffer I/O error on device hdc, logical block 137


we then tried to mount hdc oseparately
but the following error came then
/dev/hdc: Input/output error
mount: block device /dev/hdc is write-protected, mounting read-only
/dev/hdc: Input/output error
mount: /dev/hdc: can't read superblock

df -kh for apps server is
f -kh
Filesystem            Size  Used Avail Use% Mounted on
/dev/sda2             9.9G  6.6G  2.8G  71% /
/dev/sda1              99M   13M   82M  14% /boot
/dev/sda6             116G   61G   50G  56% /apps
none                  1.8G     0  1.8G   0% /dev/shm

there is no hdc filesystem   it is sda  so what is hdc then

and is the problem due to apps server
0
Comment
Question by:kurajesh
  • 2
3 Comments
 
LVL 34

Accepted Solution

by:
Seth Simmons earned 500 total points
Comment Utility
Is there a cd in the drive?
Does the server have a virtual cd option that could be mapped to an iso that no longer exists?
I've seen that happen with similar errors.
0
 
LVL 1

Author Comment

by:kurajesh
Comment Utility
iam sorry when i checked actually the cd rom was mounted to hdc in fstab, sorry for the trouble
0
 
LVL 1

Author Closing Comment

by:kurajesh
Comment Utility
the entry for cd rom was there in fstab which refers to hdc. thanks for the assitance
0

Featured Post

IT, Stop Being Called Into Every Meeting

Highfive is so simple that setting up every meeting room takes just minutes and every employee will be able to start or join a call from any room with ease. Never be called into a meeting just to get it started again. This is how video conferencing should work!

Join & Write a Comment

Linux users are sometimes dumbfounded by the severe lack of documentation on a topic. Sometimes, the documentation is copious, but other times, you end up with some obscure "it varies depending on your distribution" over and over when searching for …
The purpose of this article is to demonstrate how we can use conditional statements using Python.
Learn how to get help with Linux/Unix bash shell commands. Use help to read help documents for built in bash shell commands.: Use man to interface with the online reference manuals for shell commands.: Use man to search man pages for unknown command…
Connecting to an Amazon Linux EC2 Instance from Windows Using PuTTY.

763 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

11 Experts available now in Live!

Get 1:1 Help Now