You might want to check if you need to increase the size of the cache or determine what the ideal cache size is based on your activity since you last used the cachefslog(1M) command for a particular mount point.
View the current and highest logged cache size with the cachefswssize(1M) command.
# cachefswssize log-file-path
In the following example, the end size is the size of the cache at the time you issued the cachefswssize command. The high water size is the largest size of the cache during the time frame in which logging has occurred.
# cachefswssize /var/tmp/samlog /home/sam end size: 10688k high water size: 10704k / end size: 1736k high water size: 1736k /opt end size: 128k high water size: 128k /nfs/saturn.dist end size: 1472k high water size: 1472k /usr/openwin end size: 7168k high water size: 7168k /nfs/venus.svr4 end size: 4688k high water size: 5000k /usr end size: 4992k high water size: 4992k total for cache initial size: 110960k end size: 30872k high water size: 30872k