Reset a frozen M or T series server running Solaris

If you cannot make a Putty connection to a Solaris server then the machine will need to be reset.
You can make a connection to either the XSCF (M Series) or ILOM (T Series) or via the Lantronix devices.
To connect via the XSCF/ILOM using Putty and the default naming convention is <servername>ilo. Login as iloadmin, password stored in the usual location.

XSCF
Check the status by:

showdomainstatus -a
DID         Domain Status
00          Running

If the server is frozen it will still show as running (as shown above).

To reset the server type:

reset -d 0 xir

-d 0 is the DID number (you don't have to type in both zero's)

Once the above command has completed you can then start a console session:

console -d 0

Wait for the <ok> prompt to appear and then type boot (To generate a core dump so you can investigate why the server froze then type sync at the <ok> prompt prior to the boot command).
You should be able to make a normal Putty connection shortly afterwards.

ILOM

Type the following commands:

cd HOST

set send_break_action=break

start /SP/console

Wait for the <ok> prompt to appear and then type boot (To generate a core dump so you can investigate why the server froze then type sync at the <ok> prompt prior to the boot command).
You should be able to make a normal Putty connection shortly afterwards.