I have noticed that h1fw1 is lagging quite a ways behind h1fw0 (they are normally synced to the second for the fast data CRC and within a few seconds of writing frame files). h1fw1 was lagging 1 to 10 seconds on CRC and up to 20 seconds for frame writing.
17:47PST, restart h1fw1 daqd process. h1fw1 is now back in sync. The lack of CRC sync lead me to think this is a daqd problem and not a Solaris QFS slow raid.