Prediction of failures

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Operating Systems Solaris Prediction of failures
# 1  
Old 08-05-2009
Prediction of failures

Any diagnostic tool to do predictive check on all the SUN hard disks before it fails, as a preventive measure? Meaning, is there any tool that can really check for hdd which are failing/or "will fail soon" for Sun servers?
# 2  
Old 08-05-2009
SunVTS is the tool that's supposed to do this. It should do a stress test on the machine.
# 3  
Old 08-05-2009
SunVTS is a tool designed to validate hardware components against Solaris. It might be used to stress components but that wouldn't be a good practice.

A better suited tool would be Solaris Fault Manager (a.k.a. predictive self healing) which is precisely designed to check components before they fail.

Have a look at this blog for an example related to disks.

Bob Netherton's Weblog
# 4  
Old 08-07-2009
Its not a new machine. Its a production server, so probably we cant go with running VTS as it will cause too much stress on the server. Any better options?
# 5  
Old 08-07-2009
@ Incredible

but I think to predict hardware failures, then stress tests are the only way.

Other than that, you need to monitor your error messages wishing that the hardware itself (preferrably with up-to-date firmware) report early predictive failure.
# 6  
Old 08-07-2009
It looks like both of you overlook the second part of my previous reply. The tools you are looking for already exist and are included with Solaris.

Some more links:

Solaris Fault Manager (Solaris 10 What's New) - Sun Microsystems
Getting notified when hardware breaks
SCSI DISK FMA Project Part 1: SCSI Device Drivers as FMA Telemetry Detectors
# 7  
Old 08-07-2009
Commands :- fmstat / fmadm
Logs :- /var/fm/fmd

Solaris 10 now has a ton of background health monitoring, which reports to the above.

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