diagnostic error

[Lokesh_8]

Hi,

Can anybody please tell me about this error why its coming continuosly.

[Cheryl Griffin]

Message states:
DIAGNOSTIC SYSTEM WARNING:
The diagnostic logging facility is no longer receiving excessive
errors from the I/O subsystem. 5 I/O error entries were lost.

You have some hardware that needs attention. Run dmesg and look at syslog.log to see what errors exist.

[Bharat Katkar]

Hi,
It looks like a H/w problem.
You can either go to GSP and view System Logs or use stm to locate faulty hardware.

For going to GSP:
Press B on console, it will give u the GSP prompt. Then use "SL" command to look in the system logs ...further choose "E" to select error logs.

For stm ...see man stm and also find attached doc on using stm

Hope that helps,
Regards,

[Juan M Leon]

I have run in similar situation, with some of our XP512 at my previous job. At that point we have problems in one of the ports of the FC switch. After the port card was replaced the I/O susbsytem errors went away.

Like Cherryl states you do have hardware problems. Use cstm to try to find wich hardware is causing you problems.
Also if you have FC disk check for phantom drives, sometimes they will cause I/O errors.

I hope it helps.

[Bharat Katkar]

Take a quick look at "ioscan" command also.
Regards,

[Andrew Merritt_2]

As others have said, it's caused by a lot of errors from some hardware which arrive too fast to be processed in time by diaglogd.

Running 'logtool' in STM should give an indication of which the problem device is, if it's not otherwise obvious.

Andrew

[Sudeesh]

Normally I see these messages when we disconnect FC channel do some maintenance work. We have alternate path configurred and hence these messages will be followed by LVM switching messages in syslog.

Do an ioscan and ensure all your IO devices are available.

To find out exactly which device is having issue, run logtool from STM.

STM -> From menu Tools -> Utility -> Logtool


Sudeesh

[Lokesh_8]

Hi Bharat,

Thanx for your help man. Your suggestions worked.

Best Regards,
Lokesh

[Lokesh_8]

Thanx Bharat