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Re: Re[4]: Jewish List (was: Re: The new kid on the block.)




Hello,

The swap file is usually created early in the life of the system, and it
is not fragmented. It is never moved thereafter. I have tried to create a
dummy file 1/2 partition large, then the swap file, then deleted the
dummy, to put the swap in the physical middle of the partition. I could
not get any relevant speed data out of this so I forgot it.

Hard disks do not crash at all on power failure, haven't been doing that
for a very long time. Neither mechanically nor electrically. What can kill
them is a power surge that propagates through the PSU during a power
failure onset / end. 

Hard disks 'auto park' since MFM/RLL Seagate 32MBs for XTs at least. They
use the energy of the spindle to drive the electronics and the head arm to
the park position for this (recovery generator - very green). 
 
An 'unsynced' fs consists of files that are potentially bad. They are
found by checking each inode and directory table and then each effectively
allocated unit. Since only exactly one sector can be bad in the swap file
after a crash, this adds a trivial amount of time to the check.

Peter