home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!cis.ohio-state.edu!magnus.acs.ohio-state.edu!usenet.ins.cwru.edu!agate!doc.ic.ac.uk!uknet!gdt!uwe-bristol!f_thomas
- From: f_thomas@csd.uwe.ac.uk (F Thomas)
- Newsgroups: comp.sys.novell
- Subject: Re: Downing the server
- Message-ID: <1992Nov16.114735.22347@csd.uwe.ac.uk>
- Date: 16 Nov 92 11:47:35 GMT
- References: <BxKvLH.LwE@acsu.buffalo.edu> <1992Nov12.152310.9716@sci34hub.sci.com>
- Organization: University of the West of England, Bristol
- Lines: 55
-
- In article <1992Nov12.152310.9716@sci34hub.sci.com> gary@sci34hub.sci.com (Gary Heston) writes:
- >In article <BxKvLH.LwE@acsu.buffalo.edu> v125qmam@ubvmsb.cc.buffalo.edu (Ami R Pflugrad) writes:
- >
- >This is likely to be as religious an issue as which editor is best....
- >
- >:-)
- >
- >> Just a quick question about network policy. A LAN in our office
- >> is used from 6:AM to 8:PM M-F. When not in use, it does nothing.
- >> (The offices which contain workstations that are attached to the LAN
- >> are locked). Should we be Downing the server everynight?
- >> or on Friday night (since there is no weekend use). Currently
- >> its up and running 24/7. Saving the waste of electricity, are we
- >> doing the right thing?
- >
- >Aside from the electricity, there are other issues to consider:
- >
- > Thermal cycling of the equipment;
- >
- > Power glitches.
- >
- >(Probably more than that, but...) Every time you power up a system, it
- >warms up. Things in there expand and flex, putting stress on solder
- >joints, connectors, cables, and mechanical parts. Powering it off causes
- >some stresses to be relieved, and others appiled. Over a large number
- >of cycles, this can cause failure (cracked solder joints, broken traces,
- >connector pins working loose, etc.). With high-quality manufacturing, the
- >failure rate is very low, however. Cheaper stuff breaks easier.
- >
- >Glitches can occur at any time the unit is powered up. The more it's
- >powered up, the higher the probability of being hit by one. If you have
- >a UPS (as every server should), then this is a relatively trivial
- >concern.
- >
- >In our case: I have seven NetWare servers and three Unix hosts. They
- >are *all* on UPSs, and stay up 24 hours per day, 7 days per week. We
- >do have people working second shift, and in some cases around the clock,
- >so it's pretty much mandantory that I keep everything up.
- >
-
- My servers, have been up continuously (apart from
- maintainance shutdowns) 24 hours/7days for the best part of 3.5
- years, with no problems at all
-
- Regards
- |========================================================================|
- | Frank Thomas Aka the Strange Attractor or the Hermit |
- |========================================================================|
- | f_thomas@csd.uwe.ac.uk || voice +44 (0)272 355038 |
- | (E-mail welcome) || In Ye Olde Merrie England |
- |========================================================================|
- | Hee forgets that hee can die who complains of misery |
- | Wee are in the power of no calamity while death is our owne |
- | (Sir Thomas Browne -- Religio medichi) |
- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~|
-