Re: Virtual I/O Cache



dave.baxter@xxxxxxxxxxxxxxxx wrote:

We are trying to trouble should a problem on a GS1280, running
OVMS7.3-2 and TCPIP services 5.4 ECO5.
While checking memory on one node it was noted that Virtual I/O
Cache "Free" was = 0. It was also discovered that the system
parameter VCC_FLAGS is set to "1", which is the VAX default, rather
than to "2" which is the alpha default.

Q1. Is Virtual I/O Cache, Free = 0, a potential issue???
Q2. Is having VCC_FLAGS set to 1 on an Alpha system OK??
Q2b. would I be better off with it set to 2, what are the
respective benefits.??

Thanks

Dave

It's normal to reach 0.

XFC is generally much more effective at caching I/Os, and will cache a broader range of them. Certainly, the efforts at HP are going to XFC.

Set VCC_flag = 2 and you're ready to go.

Make sure you stay current with the latest XFC ecos.

Your mileage probably won't vary here.
.

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