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On Sun, 2012-02-05 at 15:10 +0000, Neil Winchurst wrote: > On 05/02/12 14:41, raymond.knowles@xxxxxxxxxxxxx wrote: > > Hi Neil, > > > > One of the reasons for leaving computers switched > > on is to reduce > > the amount of damage caused by thermal > > cycling. > > BBC maintenance crews found that by leaving > > equipment on 24/7, they could > > manage with one less person > > per shift. > > I switch my equipment off last thing at night, > > but whenever it is > > switched on the following day, it stays > > on until evening shutdown. > > Not overly sure about the > > details, but it's due to differential expansion > > causing > > metal fatigue and eventual failure. > > > > I'm sure this will > > generate lots of comment. > > > > Regards etc, > > Ray. > > > >> ---- > > One of the reasons I have been given for shutting down the computer when > not in use is to save wear and tear on the hard disk. This is spinning > all the time it is on, so I have been told that it is a good idea for > the sake of the HD to keep it switched off when not working at the computer. > > The hard disk is one of the few mechanical, moving parts in a computer, > I am told, and thus is more prone to problems from wear. However, asking > around, I hear that a lot of people leave theirs running all day, so > that prompted the question. > > Now reading the responses so far it seems that the electronic, non > moving, components could be affected too by switching on and off. Now I > am really getting muddled. > > Thanks for the replies so far, > > Neil > I had a Unix server ran for 5 years with out shutting down powered down to move it hard disk failure I think now the cost of Electric is greater than the cost of hardware, as long as you have backups. ________________________________________________________________________ Regards Kevin Lucas Minions Post Master(Sub) Skype minions_shop www.minionsbandb.co.uk www.tearooms.minionsbandb.co.uk FaceBook Minions_shop Po House, Minions, Liskeard Cornwall PL14 5LE 01579363386 -- The Mailing List for the Devon & Cornwall LUG http://mailman.dclug.org.uk/listinfo/list FAQ: http://www.dcglug.org.uk/listfaq