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SuperCache Revision

Four lines of alpha-numeric text are written on the top corner of the SuperCache Controller. The first two numbers on the second line are the revision

SuperSPARC Modules with SuperCache revision 3.x are not compatible with SuperSPARC Modules with SuperCache revision 2.x when used in the same SPARCserver 600MP system.

SuperCache revision 3.x does not meet the SS600MP hold time requirements on the MBus and could cause module to module communication problems if used in combination with SuperCache revision 2.x modules. Module pairs using all SuperCache revision 2.x or all SuperCache revision 3.x will function reliably.

The SuperCache used on 85MHz modules introduced the multiple commands mode. Enabling the multiple commands mode permits the SuperCache to parallelize processor-to-memory transactions.

Solaris 2.4 Patch 101945-35 enables multiple commands mode. Multiple commands
mode is enabled by default in Solaris 2.5.

Multiple commands mode can be disabled by adding set use_multiple_cmds=0 to /etc/system.