Re: Performance issue - CLRLIB vs RNMOBJ vs DLTLIB / Timeslice

[rob@xxxxxxxxx]

There are two reasons that I hesitated to suggest this:
1)  It was noted that they were sizable libraries, therefore I thought the 
SAVF would be significant.
2)  Just how often do you need to refresh test data?  Especially if you 
feel you need to dumb it down for security reasons.  Perhaps I erred on 
thinking that they did a SAVLIB every night versus a SAVCHGOBJ.  We 
quickly gave up on SAVCHGOBJ - just too many objects changed that it just 
plain wasn't worth it.

Now a third reason, as someone else pointed out.  We save access paths 
every time we do a save.  Failure to do so left our development system 
dead in the water for about a week.  Perhaps I may be mistaken, since we 
would be restoring to a different library, but I don't believe that access 
paths would need to be rebuilt.

Rob Berendt
-- 
Group Dekko Services, LLC
Dept 01.073
PO Box 2000
Dock 108
6928N 400E
Kendallville, IN 46755
http://www.dekko.com





"Steve Landess" <sjl_123@xxxxxxxxxxx> 
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01/21/2004 11:56 AM
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Re: Performance issue - CLRLIB vs RNMOBJ vs DLTLIB / Timeslice






> Eric wrote:
> As to why tape can be faster, depending on your storage controller, your
> tape subsystem can restore the access path faster than the system can
> rebuild it.  I'm not really an expert on the new hardware, so I can't
> comment more.

Eric,
Wouldn't saving each library to a save file and restoring from there be
even faster than tape?

{given that there is enough auxiliary storage capacity to hold the save
file(s)}?

Steve
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