Asset ID:	1-72-1019455.1
Update Date:	2008-07-29
Keywords:

---

Solution Type  Problem Resolution Sure

Solution  1019455.1 :   Sun[TM] Fire V445: FAN Noise : Once every 24 hours the system generates a short burst of high level fan noise  


PreviouslyPublishedAs
239845

Symptoms
In some instances the Sun[TM] Fire V445 server is deployed as a workgroup server, often installed in computer racks with minimal sound insulation. Occasionally we get reports from customer that a short burst of excessive fan noise is generated by the Sun Fire v445 servers once a day. The noise generated by these systems is often misunderstood as a product defect.

Resolution
Engineering has explained this behavior as Normal.
This behavior has been brought to the attention of Sun Fire V445 product
engineering . Engineering has responded with the following comment:

The fan viability check every 24 hours on ALOM 1.6.4, or greater, releases is an
expected behavior. ALOM 1.6.4 released a new fan algorithm to keep fan quiter
during normal operations. To avoid having the fan spin up to max during normal
working hours simply reset the ALOM [MBC (sc>resetsc -y)] at the time of day
you perfer to have this check done.

Since this is not a product defect please do not replace any Sun Fire V445 hardware.


Product
Sun Fire V445 Server

Internal Comments
This behavior has been reviewed, with product engineering under CR6719378.

V445, Fan Noise, fan, noise, excessive, loud

Change History
emailed Author Paul Lim 7/23/08
Hi Paul,



I am working to publish this article but noticed it is missing a
required statement.  Can you please add the Product statement to this
article as soon as possible so that we may publish.  Thank you and if I
can help in any way please let me know.

Attachments

This solution has no attachment