Douglas Pollard wrote: > > Jon there is a possibility that the whole thing was nothing more than a > coincidence? The computer is old so there may well be a problem with > the power supply. It's a $27.00 computer I bought on line for my work > shop and to run a cnc bench mill. There could be almost any kind of > problem there. > Probably not a TRUE coincidence. I suspect the compressor drew a current surge just at the right cycle of the power waveform to cause a worse than usual dip, and the old power supply with weak, dried-out capacitors powered down for just an instant while the disk drive was writing critical info on the disk, like the (inode list). Generally, fsck can repair such damage if run immediately after rebooting. In some cases, and especially with all of Linux in a single, unified partition, rebooting may not be possible, but you can usually boot from the install CD and then run fsck from the CD. That's why pros put the kernel and boot files in their own partition, that never gets written to except during system upgrades.
Of course, if the hard drive has completely failed, won't spin or access any data, then it could be partially coincidental. It might have been ready to die, and the power cycle caused by the air compressor might have been its very last spin-up. A weak power supply may have gone out of voltage spec during the power transient and damaged the drive electronics. Jon ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
