Cache Size in FM8 Server?

[xochi]

FM Server 7.0v1 allowed Cache size to be set by available memory. 7.0v3 reduced the size of the RAM Cache, as a workaround for some bugs. For example, my Server 7.0v3 installation has a maximum cache size of 224MB on a Mac with 1Gig of RAM.

Anyone know if the maximum cache size has increased again in FM Server 8?

[Steven H. Blackwell]

Too much RAM allocated to cache causes instability. IIRC, in Server 8 the constraint that was introduced in Server 7.0v3 remains. However, I will check this for you to be sure.

Steven

[xochi]

There is no inherent reason that more Cache should cause a problem -- it was pretty clear from the release notes that 7.0 had a cache bug, which they couldn't fix, so they just applied a work-around (limiting cache size).

Was hoping this was fixed in FM8 Server...

[xochi]

Bump -- can anyone comment on whether the maximum cache size on FM 8 server has been raised back again to what it was in FM 7.0v1 and 7.0v2?

In FMS 7.0v3, I find a maximum of 224MB on a Mac with 1Gig of ram running 10.4.2.

[Martin Brändle]

No, the restriction is not raised.

[Steven H. Blackwell]

Bump -- can anyone comment on whether the maximum cache size on FM 8 server has been raised back again to what it was in FM 7.0v1 and 7.0v2?

In FMS 7.0v3, I find a maximum of 224MB on a Mac with 1Gig of ram running 10.4.2.

It's approximately 24% of the available RAM, and it should almost never be set that high. There is a ceiling of 800 MB.

The exact formula is, IIRC:

C=(R-128)*0.25

where R is the amount of physical RAM installed, and C is the resultant available cache size. To be safe, esp. with Server Advanced, I use 256 rather than 128 as the diminution amount.

If you are running IWP and expect more than about 30 users, I strongly recommend using 4 GB RAM.

HTH

Steven