I would like to do a test with a higher ssd_retry_count than the default which 
seems to be set to 3 and is not tunable the way it was prior to Solaris 10. The 
sddef.h header file includes a struct, sd_lun and this struct includes this 
variable...

uint_t  un_retry_count;     /* Per disk retry count */

I can print the current value of this variable per lun with this command...

echo "*ssd_state::walk softstate |::print -t struct sd_lun un_retry_count" | 
mdb -k

But what I really want to do for my test is to set that variable to 0x5. Is it 
possible to change this variable in a running kernel and if so how?
 
 
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