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Thursday, November 15, 2012

Service Memo (SM)

Solid State Disk (SSD) device, write endurance and disk failures

SSD's has many benefits over conventional hard drives, but when it comes to write endurance it is important to choose the technology to be used with care.

We have noticed a number of returns with failure related to write endurance on SSD devices. Normally, it is possible to "prove" that failures occured by accessing life data from a defective SSD through the S.M.A.R.T interface and protocol indicating too much data has been written to the SSD device.

It is of very high importance to consider several aspects when using an SSD for a particular application, below the most critical ones, such as:

- Nature of the application, data written to disk during a defined time period (worst case).
- OS and applications settings, optimized for SSD.
- SSD selection, there are several choices of price and performance.
- Expected system life, using worst case calculations.


APPLIES FOR THE FOLLOWING HATTELAND DISPLAY® PRODUCTS:
Any computer based product with SSD hardware (Stand-alone Computers/Panel Computers)

Note: Customized models are ALSO affected by this Service Memo.


DESCRIPTION / SYMPTOM(S):
- "Disc boot failure" message (device found in BIOS, but no boot) / Operating System (OS) crash.
- "Blue Screen" situation during OS operation.
- "No Operating System found" message during BIOS boot.
- Could not be identified upon boot (device not found in BIOS).


SOLUTION:
Even though if current installed systems does not show these symptoms, we recommend to evaluate "remaining life situation" for installed base and consider a preventive / proactive action.

If requested, we are more than willing to assist making an evaluation on a specific situation, to determine if the installed system are safe or if further action should be initiated.


For further enquiries regarding this Service Memo Notification, please contact HelpDesk.




Implemented by:
____________________________________________________
Leif Grindheim
Vice President Production and Service
Hatteland Display AS
 




Hatteland Display AS
囈sosen, N-5578 Nedre Vats, Norway
Tel: (+47) 4814 2200 - Fax: (+47) 5276 5444
www.hatteland-display.com