SRC Forum - Message Replies

Forum: Reliability & Maintainability Questions and Answers

Topic: Reliability & Maintainability Questions and Answers

Topic Posted by: Reliability & Maintainability Forum (src_forum@alionscience.com )
Organization: System Reliability Center
Date Posted: Mon Aug 31 12:47:36 US/Eastern 1998

Original Message:

Posted by: Sadat
Date posted: Thu Aug 11 14:53:49 US/Eastern 2005
Subject: Hard Disk Reliability
Message:
How long is the useful life of a hard disk in a telecom switch environment? What is the dominant failure mode?

Reply:

Subject: hard drive
Reply Posted by: bwd (bdudley@alionscience.com )
Date Posted: Thu Sep 8 13:45:13 US/Eastern 2005
Message:
Hard drive life times have been defined in terms of on off cycling. The L-10 value that we have seen is 40,000 cycles. The failure mode is corrupt data.