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Barebone System Packaging Addendum Print
August 2011

Applies to all barebone systems

The packaging of Supermicro barebone systems are NOT designed for a completely assembled server which may include a number of hard disk drives, adding to the weight of the original chassis.

Please be extra careful when transporting and removing the server from the Supermicro packaging.

Take particular note in the front heavy end where hard disk drives are installed. Be careful not to unlock a drive tray lever while lifting or placing down the server. Drive tray levers can be damaged if uncareful as the lever design does not allow for vertical weight bearing.

2U-4U servers should be personally collected and transported with extra attention and care where ever possible due to the fragility of these servers and their packaging.
 
Thunderbird A75 TSD Notes Print
August 2011
Monitor Compatibility
There was an issue with the on-board graphics and specific models of CRT monitors: it is believed to be caused by the current graphics driver setting a resolution that is not supported by the monitor. This causes the monitor to go blank and it is then necessary to unplug/re-plug the monitor to prompt a re-sync to a compatible resolution. A bug report will be made to AMD, hopefully it will be fixed in one of the next driver releases. As the issue only appears to happen with specific old CRT models it is not a major concern for current production systems. Until it is fixed a note will be added to our pricing page so resellers will be aware of the issue.

Host RAID Cache
Unlike previous versions, write-back caching is enabled by default on all newly created volumes. This has been found to cause issues with OS installation, Windows 7 in particular. It is recommended that you disable write back caching when using Host RAID for new Thunderbird systems-  this will be done on all Compucon production systems. Performance does not suffer greatly when write-back caching is disabled.

Low Electricity Consumption
- System total Idle:  51-78W
- System under Load (Bitpro stress testing) 108-136W
- Spec Chipset TDP 7.8W
- Spec CPU TDP: 100W


Return to Thunderbird A75 page
 
SAS Expander compatibility list Print
August 2011
Compucon: http://www.compucon.co.nz/images/stories/Knowledge Base/SAS-CompList.pdf (last updated 30/05/2013)

Source: http://www.supermicro.com/products/nfo/files/storage/SAS-CompList.pdf

Old version:

Image

Image
 
Intel SSD 320 Series bug "Bad Context 13x Error" Print
August 2011
18/8/2011 Update by Intel - Firmware fix posted
Source: http://communities.intel.com/thread/24205
Firmware download: http://www.intel.com/go/ssdfirmware/

13/8/2011 Update by Intel
Source: http://communities.intel.com/thread/24121?tstart=0

Status:

Intel has reproduced, identified root cause, and developed a firmware update which addresses the Bad Context 13x Error being discussed on the Communities site and elsewhere.

 

Response plan:

The new firmware update is in final validation testing and is targeted for release on Intel® Communities within the next two weeks.  Intel takes firmware updates and issues of reliability very seriously and is taking extra steps to support a smooth release.  We appreciate your patience.

 

What should I do if I have not experienced this issue?

To minimize occurrence, if a system requires a shut down, Intel recommends using that system’s standard power shut down sequence.  As with any storage device, Intel recommends users frequently back up their data.  Download and install the new firmware when it is available.  As with our previous firmware updates, a secure erase is not required.

 

What should I do if I have experienced this issue?

If you have already experienced a drive failure or encounter this problem before the firmware update is released, please contact your Intel representative or Intel customer support (via web:  www.intel.com or phone: www.intel.com/p/en_US/support/contact/phone) for an SSD replacement.  An alternative option is to use the Intel ® SSD Toolbox or similar tools to perform a secure erase in order to restore the SSD to an operational state;  all data will be erased.  After secure erase, update your SSD with the upcoming firmware.  The pending firmware update will not recover user data.  

 

Background:

For users unfamiliar with the issue, an Intel SSD 320 Series drive may exhibit a drive capacity of 8MB and an electronic serial # field containing a message of “BAD_CTX 0000013x” due to an unexpected power loss under specific conditions.  Once this error occurs, no data on the SSD can be accessed and the user cannot write to or read from the SSD.   

 

Rgds,

Scott

Intel Corporation

 
Year 2011 - Wireless Bridging and Video Transmission Print
August 2011

The project for Calendar Year 2011 has 2 parts- wireless bridging and video transmission.  Arun Vejendla, a 4th year student for Bachelor of Information Technology, undertakes this project.  Edmond Chan, who holds a master degree in IT from the same university, is the supervisor.

a)      Testing of wireless bridges (based on a radio that we source from Taiwan) in various configurations to establish the performance specifications.  The product that we imported has 2 variants.  Model A is a wireless bridge and it consists of a radio and a flat panel antenna.  Model B is a radio only and it has the same housing as Model A but it does not have any built-in antenna inside the housing.  For Model B to work, we will need to connect it to an external antenna.  We have a choice of different form factors of external antenna such as omni or parabolic.  The radio has been certified to IEE 802.11n standards and is suitable for operation in 5GHZ spectrum.  The student is expected to test the wireless bridge in the workshop and real life environments, and to state the maximum performance and limitations of all versions.  We are aware that the bridge is capable of transmitting data at 80Mbps x 2 directions simultaneously over 2KM range on a line of sight.


b)      Investigation of the impact of video on data transmission on a local area network to establish some performance specifications.  Refer to Cisco MediaNet.  Our company has been involved in video for surveillance use.  One camera typically requires 3Mbps of bandwidth.  Suppose the surveillance system has 30, 60 and 90 cameras respectively, the video will have very substantial impact on any 100Mbps local area network.  The student is expected to provide guidelines to system administrators on how the video traffic should be managed.  Cisco MediaNet has special and proprietary firmware for managing video in data networks.  The student is expected to learn about MediaNet and recommend if we can use standard network switches to achieve the same purposes.



 
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