OS-2000 SATA hotplug should have nice things

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  * could go to 999999, but for now stick with 5 digits to match the existing
  * default of 30000.  This is mostly being conservative, so we can bump higher
  * if necessary.
  *
  set pidmax=99999
+ 
+ *
+ * OS-2000 -- The traditional (and essentially entirely brain dead)
+ * cfgadm(1M)-centric model of hotpluggin' appears to be basically unnecessary.
+ * This tunable enables the system to create device nodes for newly inserted
+ * devices automatically.  See: usr/src/uts/common/io/sata/impl/sata.c:97
+ *
+ set sata:sata_auto_online=1