Isolating A Failed Centerplane Support Board; Powering Off A Centerplane Support Board; Removing A Centerplane Support Board - Sun Microsystems Sun Fire E25K Service Manual

11.2.1

Isolating a Failed Centerplane Support Board

1. Check for any error messages during POST.
2. On the SC, check for any error messages in
/var/opt/SUNWSMS/adm/platform/messages.
On the SC, if available, examine any DStop dump files or record stop dump files
located in /var/opt/SUNWSMS/adm/
where domain_id is the domain letter.
11.2.2

Powering Off a Centerplane Support Board

Powering off a centerplane support board also powers off one-half of the Sun
Fireplane interconnect assembly.
1. Use dynamic bus reconfiguration to specify the Sun Fireplane interconnect
assembly half that will remain active. Failure to do so will DStop all running
domains. Type the following command:
sc% setbus -c x
where x is CS0 or CS1. This represents the centerplane support board that will
remain powered on (or the one that will not be powered off).
2. Power off a centerplane support board by using the Sun Management Center or
by typing the following SMS command:
sc% poweroff csx
where x is 0 or 1. Refer to poweroff(1M) for more information.
11.2.3

Removing a Centerplane Support Board

Remove boards by pulling outward using the front handle with one hand and
placing the other hand underneath the bottom guide rail for additional support.
Carry the board to a work area holding vertically, with the connector downward, by
the front handle. Lift the board and place the other hand under the bottom, or back,
of the board placing the bottom, or back, on an ESD-protected surface.
Note – Never place the weight of a board on its connector as it is easily damaged.
11-4 Sun Fire E25K/E20K Systems Service Manual • April 2004
domain_id
/dump.