XPost: microsoft.public.sqlserver.server   
   From: genew@ocis.net   
      
   On Sat, 11 Dec 2010 12:02:09 +0100, Erland Sommarskog   
    wrote:   
      
   >Gene Wirchenko (genew@ocis.net) writes:   
   >>   1) I need some definitions:   
   >>           physical log  (I think this a fixed-length file.)   
   >>           logical log   
   >>           virtual log   
   >   
   >To be honest, I don't know what the author may have in mind, least of all   
   >the first two. A transaction log consists of a number of Virtual Log Files   
   >(VLF), but I would not really consider it beginner's matieral. Heck, I only   
   >have a dim understanding of it myself.   
      
        That is bad if you (an experienced person) do not have it   
   straight.  I am blaming documentation here;  it really is bad.  I do   
   not think it unreasonable for a newbie to be able to easily find out   
   the basics.   
      
        I have read my text again and again.  I have done Web searching.   
   I have not been able to find a decent explanation.  The three terms   
   are used in general.  It is not just Mr. Dewson's creation.   
   Nonetheless, I have not found anything that I would call a clear set   
   of definitions.  I think that I am going to just give up on this part.   
      
        Your explanation (snipped) was about what I ended up figuring out   
   of the issues on top of the logs.   
      
   [snipped explanation]   
      
        Thank you for your time.   
      
   Sincerely,   
      
   Gene Wirchenko   
      
   --- SoupGate-Win32 v1.05   
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