Messages in this thread |  | | From | (Christoph Lameter) | Subject | Re: The best filesystem for a BIG news server | Date | 9 Nov 1996 07:34:32 -0800 |
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The machine is stitting in an old style mainframe room with air conditioning. After the last swap action I have removed the case and we will now leave the machine open. Perhaps that will improve things.
Alan Brown (alan@papaioea.manawatu.gen.nz) wrote: : In article <55jgip$qt9@miriam.fuller.edu>, : Christoph Lameter <clameter@miriam.fuller.edu> wrote: : : >Note that we are continually swapping drives. No SCSI drive has survived more than 8 Months. : : CHECK THE DRIVE CASE TEMERATURE!! : : Check the ambient temperature inside the case too. : : > We are now checking out how the : >situation is with IDE drives for a newsserver spool. : : IDE drives won't survive as long as SCSI, mainly because the cheap ones : aren't engineered as well as scsi drives. (good, fast, cheap, pick any two) : : Keeping drives cool is the secret. If the room's ambient temperature is 20C, : the temperature inside a case with average airflow and a few drives : installed can quite easily reach 40C, and the drives themselves may well : exceed 60C. : : At temperatures like that, lifespans are measured in months, sometimes weeks. : Remember that every 10C increase in semiconductor junction temperature : halves the device's operating life, and much the same applies to drive : bearings (platter and servo). : : Seagate won't warranty a Barracuda which hasn't been installed in : compliance with their required airflow specifications. The number of : failed 4Gb units I've seen which were in tiny boxes with no airflow is : astronomical, whereas ones installed with decent amounts of air flowing : across them last for a few years. It just goes to show that people never : RTFM, even when doing so would have saved them a few thousand dollars in : time and replacement costs. : : There's a reason the old-style mainframe rooms were kept cold enough to : require a woollen jumper to work in them for any length of time. It's a : pity more people setting up PC based servers don't realise it applies as : much now as it did 20 years ago. : : AB : -- : If you go down to the woods today you're sure for a big surpise: Teddies : in leather who bang heads together, with black liner round their eyes. -- {}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{} {} FISH Internet System Administrator at Fuller Theological Seminary {} {}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{} PGP Public Key = FB 9B 31 21 04 1E 3A 33 C7 62 2F C0 CD 81 CA B5
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