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- Field MTBF Numbers: What Do They Really Mean?
- MTBF is an acronym for Mean Time Between Failures. In general, a higher MTBF number indicates a more reliable product. Beyond this simple definition, you'll find a wide variety of special meanings. In the military/aerospace industries, MTBF is defined by a specific set of calculations. The formula for system longevity...
- White papers 2000-06-15
- Mean Time Between Failure: Explanation and Standards
- "Mean time between failure" is a reliability term used loosely throughout many industries and has become widely abused in some. Over the years the original meaning of this term has been altered which has led to confusion and cynicism. MTBF is largely based on assumptions and definition of failure and...
- White papers 2005-02-07
Additional Resources
- MTBF Calculator 1 (Windows)
- Mean time between failures MTBF is the mean average time between failures of a system, the reciprocal of the failure rate in the special case when the failure rate is constant. Calculations of MTBF assume that a system is "renewed", i.e. fixed, after each failure, and then returned to service...
- Software downloads 2007-04-16
- Performing Effective MTBF Comparisons for Data Center Infrastructure
- Mean time between failure MTBF is often proposed as a key decision making criterion when comparing data center infrastructure systems. Misleading values are often provided by vendors, leaving the user incapable of making a meaningful comparison. When the variables and assumptions behind the numbers are unknown or are misinterpreted, bad...
- White papers 2005-02-07
- MTBF Timer 1 (Windows)
- The MTBF Timer clocks the computer's up-time. You can use it to assess when it might be necessary to replace important components. The only known limitations are that standby and hibernate mode do not constitute power off, therefore the program calculates these periods as up-time. I don't consider this a...
- Software downloads 2005-08-09
- How often do you replace company's computers?
- We have about 70 computers on the LAN where some are as old as 7 years old (yes, it's that sad..). Since money is tight, we only replace the computers that are no longer working. The drawback of this is that some of those that are still "dreading" are creating...
- Discussion threads 2006-03-03
- What other factors effect a server older than 7 years.other than HDD?
- What other factors effect a server older than 7 years.other than HDD?MemoryMTBFSoftware comparetibilityLong term ROI return investmentIs Hardware easily soweed?FANS!Recently saw an issue with an aging as400. The main cooling fan failed and the machine started to lock up.All kinds of factors....The Hard drive, the power supply, tape drives, and...
- Discussion threads 2007-07-05
- Raid and Windows Power Management
- Hello I have a raid-5 array in Windows Server 2003 which, is working fine. Having been thinking about the power consumption and HDD life, I was wondering about using the Windows Power Management to power down the HDD's after 30 min as they're not used 24/7.Would this cause any issues...
- Q&A 2006-01-24
- Members respond: Should you use cheap parts when building a server?
- This week's Point and Counterpoint looks at the responses given by TechRepublic members regarding the use of cheap parts instead of standard server parts for servers on a network.Point and Counterpoint's purpose is to present a balanced discussion among our members regarding hardware, software, and any other topic that our...
- Technical articles 2000-09-22
- Solid State
- This may be a dumb question, but what is a solid state hard drive?The only dumb questionis the one not asked. You've been around long enough to know to post a question to Questions. I don't exactly know... but this might help.http://en.wikipedia.org/wiki/Flash_driveA misnomer. .SSD....It is a drive comprised...
- Discussion threads 2008-12-03
- (Photos: Oh Christmas tree, oh LED tree)
- Nothing to do with energy savingLEDs are used because they're more reliableNot reallyThe win-win of LED's is that they are more reliable, but also save up to 90% of the energy used by old style bulbs.Confusing reliability with MTBFFrom a general reliability standpoint, if anything, LEDS are presently less reliable...
- Discussion threads 2008-01-09
- dot matrix printers
- hello guys....i'm so happy being part of TechRepublic.com...i can now share my hardware technical problems..huh!!! guys i'm really having a problem with these epson LQ-300 series printers...we have a lot of defective...our primary diagnosis is that a printer head problem..we are having problems with the loosing of ribbons, white lines...
- Discussion threads 2008-03-25
- Dual Nics in a cisco switch environment
- Scenerio:Does anyone know the proper configuration/design when using dual nics in a cisco switch environment. For example, if you have two nics in an hp server configured for either fault tolerance or load balancing. There are a few ways you can go about doing this on the...
- Discussion threads 2008-04-10
- E-mail archiving can cause security issues
- Does your organization currently archive its e-mail? Is it required to do so? Is security a concern with your organization's e-mail archive? Share your comments about securing e-mail archives, as discussed in the Oct. 11 Internet Security Focus newsletter.If you haven't subscribed to our free Internet Security Focus newsletter, sign...
- Discussion threads 2004-10-08
- Tips for extending PC life to the max?
- Tips for extending PC life to the max?Hello,I have an older 1998 PC system that for hardware compatibility reasons is irreplaceable to me and would like some suggestions as to how to extend its life for as long as possible -- ideally for the indefinite future. Specifically, I have...
- Q&A 2005-02-18
- Choosing iSCSI over fibre channel: Deciding factors
- Choosing iSCSI over fibre channel: Deciding factorsarticle rootChoosing iSCSI over fibre channel: Deciding factorshttp://www.mcdata.com/products/hardware/iswitch/index.htmlhttp://www.emc.com/products/systems/clariion/ax100/index.jspA good ideaI'd recommende IP Storage Router from McData see first URLand EMC AX100i second URLSlavaISCSI Vs Fibre ChannelIf the enterprise can live with bandwidths allowed by GigE and TCP/IP, ISCSI's moderate performance and low price are...
- Discussion threads 2005-03-16
- What Systems Management KPIs do you use?
- Does anyone have a list of metrics/KPIs they use currently and could share them?I am currently trying to develop a way of measuring the ongoing value and efficiency of systems management to a large IT organization. The challenge I have is determining what makes sense to track. Some of...
- Q&A 2005-05-16
- IBM PS/2 55 SX Error Message - HELP!
- Hi,I have an IBM PS/2 55SX that is displaying an error while booting. The PC beeps twice, displays 161 and 163 on the left hand side of the screen. Across the top of the screen is a large red equals sign, followed by "OK" in a red circle with a...
- Discussion threads 2005-06-14
- Lifespan of business class printers
- So I've recently taken over the Help Desk role at a small-mid level business.Here we have a number of printers somewhere in between such as an HP 3700 is our newest one and printers like an HP LaserJet 5000, 4500 and other variations.It seems like some of these printers are...
- Q&A 2005-08-09
- Figure a budget
- We are a small porivtae school with 50 systems and a server (server2003)When I arrived 6 months ago the sevre was XP with a P3 processor and 512ram and a total of 13 computersThrough scrounging and begging I now have 50 computers all XP.How does one start to estimate an...
- Discussion threads 2007-02-27
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