Hello there!
I am familiar with Linux, FreeBSD, but relatively new to Solaris. Because I wanted to play a little with servers and networks, I got a used SunFire v20z with AMD Opteron processors and installed OpenIndiana 151a8 on top of that. This is the first machine of this kind I have ever owned, so therefore I'm a little unexperienced ...
The problem is, the machine is terribly loud, the fans are running at 10k RPM, according to the front panel. I did a lot of googling and found that I'd have to do a firmware update. pclid is up and running, here is some other probably useful information:
guru@sunfire:~# /usr/bin/powertop
C-states (idle power) Avg Residency P-states (frequencies)
C0 (cpu running) (1.0%) 2393 Mhz 100.0%
C1 3.0ms (99.0%)
Wakeups-from-idle per second: 699.1 interval: 4.3s
no ACPI power usage estimate available
Top causes for wakeups:
58.2% (406.8) sched : <xcalls> unix`dtrace_xcall_func
14.3% (100.1) <kernel> : genunix`clock
9.5% ( 66.6) <kernel> : ohci`ohci_handle_root_hub_status_change
8.1% ( 56.7) <kernel> : genunix`cv_wakeup
7.1% ( 49.9) <kernel> : SDC`sysdc_update
1.4% ( 9.8) <kernel> : ata`ghd_timeout
0.6% ( 4.0) <kernel> : genunix`schedpaging
0.2% ( 1.6) <interrupt> : bge#0
0.2% ( 1.2) <kernel> : TS`ts_update
0.1% ( 0.9) <interrupt> : bge#1
0.1% ( 0.5) <interrupt> : ata#1
0.0% ( 0.2) <kernel> : ip`mld_slowtimo
0.0% ( 0.2) <kernel> : ip`igmp_slowtimo
0.0% ( 0.2) <kernel> : kcf`rnd_handler
0.0% ( 0.2) <kernel> : mpt`mpt_watch
guru@sunfire:~# uname -a
SunOS sunfire 5.11 oi_151a9 i86pc i386 i86pc
guru@sunfire:~# smbios -i 1
ID SIZE TYPE
1 70 SMB_TYPE_SYSTEM (system information)
Manufacturer: Sun Microsystems
Product: Sun Fire V20z
Version: 00
Serial Number: XG051201047
UUID: ebe22502-ce33-11d9-9eae-0060b0b39dd0
Wake-Up Event: 0x6 (power switch)
SKU Number:
Family:
How do I perform an SP firmware update? I followed the official documentaton so far but I have no idea whether this is solaris-specific. Using the front panel I could not the the SP firmware update tool to work properly with DHCP, although IPs are assigned finely. Maybe the standard port does not work? What do I have to do? I plugged the ethernet cable into port 0 if that's relevant.
All I want to have is silence 
Thank you in advance!