From owner-freebsd-small Wed Oct 7 12:58:56 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id MAA06606 for freebsd-small-outgoing; Wed, 7 Oct 1998 12:58:56 -0700 (PDT) (envelope-from owner-freebsd-small@FreeBSD.ORG) Received: from red.juniper.net (red.juniper.net [208.197.169.254]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id MAA06579 for ; Wed, 7 Oct 1998 12:58:45 -0700 (PDT) (envelope-from tli@juniper.net) Received: from chimp.juniper.net (chimp.juniper.net [208.197.169.196]) by red.juniper.net (8.8.5/8.8.5) with ESMTP id MAA09195; Wed, 7 Oct 1998 12:58:01 -0700 (PDT) Received: (from tli@localhost) by chimp.juniper.net (8.7.6/8.7.3) id MAA02081; Wed, 7 Oct 1998 12:57:45 -0700 (PDT) Date: Wed, 7 Oct 1998 12:57:45 -0700 (PDT) Message-Id: <199810071957.MAA02081@chimp.juniper.net> From: Tony Li To: asmodai@wxs.nl CC: chad@rez.com, freebsd-small@FreeBSD.ORG In-reply-to: <771898EF14E6.AAC5AD4@smtp01.wxs.nl> (message from Jeroen Ruigrok/Asmodai on Wed, 07 Oct 1998 21:43:08 +0200) Subject: Re: New microdrives from IBM Sender: owner-freebsd-small@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG | >> http://www.storage.ibm.com/hardsoft/diskdrdl/micro/index.htm | > | > | >Unfortunately, they don't seem to be touting the incredibly high MTBF | >numbers that one might like for an embedded systems product. | | Call me lame, but what was MTBF again? Thought it was related to HD's ? Mean Time Between Failure. It applies to components as well as systems. Yes, they relate to HD's (which the IBM disk _is_). Without a MTBF similar to that of a flash device (very high -- no moving parts), a HD will drag down the MTBF numbers of the overall system. Not good if you have to absolutely, positively not fail. Tony To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-small" in the body of the message