In a message dated 1/8/2008 10:00:11 A.M. Central Standard Time,  
[EMAIL PROTECTED] writes:
>The way I
remember it, we could ask for more LCS than main, but it was  much slower.
 
You're right.  I remembered it backwards.  LCS was slower than  normal 
storage but also much less expensive.  And, as Lynn Wheeler  mentioned, that 
same 
data center had an extremely clever local modification that  used LCS as an I/O 
buffer, intercepted I/O requests, and thus acted like today's  VLF.  Its 
author told me that he supported everything except ISAM  because he could never 
find all the SIO instructions in ISAM.  I also  worked at another shop with a 
large amount of Ampex LCS, and they  had frequent hardware-caused system 
crashes.
 
Bill  Fairchild
Franklin, TN





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