Solved

Linux (XenServer) Input/Output Error

Posted on 2010-09-08
6
1,874 Views
Last Modified: 2013-11-11
Greetings,

I was happily coding along yesterday when my virtualized web server stopped responding to requests.  I SSHed into the host and got the following error:

 bash: /sbin/reboot: Input/output error

I had to restart using

echo 1 > /proc/sys/kernel/sysrq
echo b > /proc/sysrq-trigger

Once the server restarted, the system seemed to work OK.  But what's going on?  Is there a hard drive failure imminent?  How can I tell?
0
Comment
Question by:asaivan
6 Comments
 
LVL 6

Accepted Solution

by:
rpassero earned 500 total points
ID: 33637749
It's certainly not a good sign that your system is unable to load /sbin/reboot from the HDD...it could certainly be indicative of a pending disk failure.

Check it out with fsck: http://adminschoice.com/repairing-unix-file-system-fsck 
0
 
LVL 18

Expert Comment

by:TobiasHolm
ID: 33671110
Have you searched the system logs for clues?
0
 
LVL 9

Author Comment

by:asaivan
ID: 33673869
/var/log/messages was untelling...

Do you have any other ideas where I might find some clues?
0
Master Your Team's Linux and Cloud Stack!

The average business loses $13.5M per year to ineffective training (per 1,000 employees). Keep ahead of the competition and combine in-person quality with online cost and flexibility by training with Linux Academy.

 
LVL 18

Expert Comment

by:TobiasHolm
ID: 33680403
No. I'd look in allt the logs that's available. If I didn't find anything there I wouldn't have a clue.
0
 
LVL 1

Expert Comment

by:pfc_it
ID: 33945709
Try a grep "|error" /var/log/* > errors.log

Then vi /var/log/errors.log
0
 
LVL 9

Author Closing Comment

by:asaivan
ID: 34021842
Thanks for the help...
0

Featured Post

Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

#Citrix #XenApp #Citrix Scout #Citrix Insight Services #Microsoft VMMAP #Microsoft ADEXPLORE #Microsoft RAMMAP #Microsoft TCPVIEW #Microsoft AUTORUNS #Microsoft PROCESS EXPLORER #Microsoft PROCESS MONITOR
This is an issue that we can get adding / removing permissions in the vCSA 6.0. We can also have issues searching for users / groups in the AD (using your identify sources). This is how one of the ways to handle this issues and fix it.
Connecting to an Amazon Linux EC2 Instance from Windows Using PuTTY.
Get a first impression of how PRTG looks and learn how it works.   This video is a short introduction to PRTG, as an initial overview or as a quick start for new PRTG users.

839 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