How to clear an old hardware status error in HPSIM

[Per Borglin_1]

I can't clear a hardware status fault from a Tru64 Unix V5.1B running on a Alpha server.
The agent is running and report live things like processor load and so on without any problems, but is reporting an old failure from a disk.
In the alpha server I have cleaned the binlog errorlog and also other logs. I can see with hwmgr get that a attribute on the disk is set to one (hard_err=1). This fault is old and I suppose it's stored someware in the disklogic.
This is not settable via hwmgr. Any idea how to clear it in HPSIM.

// Per