INTL 3:770/1 3:770/3   
   REPLYADDR Pancho.Jones@proton.me   
   REPLYTO 3:770/3.0 UUCP   
   MSGID:  e7ced6f2   
   REPLY:  3ef378b9   
   PID: SoupGate-Win32 v1.05   
   On 12/9/24 13:47, Michael Schwingen wrote:   
   > On 2024-12-09, The Natural Philosopher  wrote:   
   >>> I was surprised you'd use MTBF for a component which is expected to   
   >>> steadily deteriorate due to wear and tear.   
   >>>   
   >>> I though MTBF was more a random failure thing.   
   >>>   
   >> No it isnt that at all.   
   >   
   > MTBF is a measure for the rate of failures *during normal lifetime* - ie.   
   >   
   > 1 / failure rate   
   >   
   > It is *not* the lifetime of a component. MTBF is a measure for failures   
   > during the flat part of the bathtub curve. Failures due to end of lifetime   
   > (like normal, not-premature wearout on a fan) are not part of MTBF.   
   >   
      
   Thanks Michael, very instructive. That clears up my misunderstanding. So   
   MTBF is a random type, rather than a wear type thing. You just have to   
   assume bits are replaced before they get old.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: Agency HUB, Dunedin - New Zealand | Fido<>Usenet Gateway (3:770/3)   
   SEEN-BY: 19/38 105/81 106/201 128/187 129/305 153/757 7715 218/700   
   SEEN-BY: 218/840 220/70 226/17 30 100 227/114 229/110 111 114 200   
   SEEN-BY: 229/206 300 317 400 426 428 550 616 664 700 705 266/512 267/800   
   SEEN-BY: 282/1038 291/111 292/854 310/31 320/219 322/757 342/200 396/45   
   SEEN-BY: 460/58 633/280 281 412 418 420 509 2744 712/848 770/1 3 100   
   SEEN-BY: 770/330 340 772/210 220 230 902/26 5020/400 5075/35   
   PATH: 770/3 1 633/280 229/426