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VFP and RAID. Problems with rapid transactions...
Message
From
23/03/1998 18:09:27
 
 
To
18/03/1998 10:26:49
Mark Hall
Independent Developer & Voip Specialist
Keston, Kent, United Kingdom
General information
Forum:
Visual FoxPro
Category:
Other
Miscellaneous
Thread ID:
00085336
Message ID:
00086570
Views:
30
>I have run similar VFP multi user applications on an NT3.5 Server with a RAID storage system and had no problems.
>
>Can you be more specific about what caused the crash?
>
>Regards
>Mark Hall
I suggest you check the NOVELL data segment size. Many installations I have seen max this out ( unintentionally ) when upgrading to 4.x from 3.x -- this means that the minimum access may be significantly larger than before the upgrade. The reason to use larger segments is to reduce the size of the storage mapping tables -- but at the expense of always picking up extra data on every I/O. You should also take a look at the RAM -- 4.x likes it more than 3.x overall for essentially the same 'work' being done -- thus, if you benefitted from NOVELL's disk caching before, and did not add RAM when converting to 4.x, you probably have significantly less memory available for disk caching.
PS the rumors of C/S superiority over VFP ( or anything else ) needs to be considered in light of the marketing program of the source of the information.
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