Specifications

5-8 Sun StorEdge A1000 and A3x00/A3500FC Best Practices Guide • November 2002
5.1.10 Verifying the HBA
■ Refer to Early Notifier 20029 for the latest information regarding HBA support.
■ The UDWIS/SBus host bus adapter (HBA) should be at firmware level 1.28 or
higher (Refer to FCO A0163-1 and FIN I0547 for further details).
■ The older SOC+ card, part number 501-3060, is not supported with the A3500FC.
You need to check the card part number label located on the SBus connector to
determine the part number. Do not rely on the output of prtdiag, it may provide
the wrong part number.
■ The newer SOC+ card 501-5202 and 501-5266 are supported with A3500FC. Be
sure to have firmware level 1.13 (patch no. 109400-03 or higher) installed.
■ To use the onboard SOC+ you need to have firmware level 1.13 installed (patch
no. 103346-25 or higher). The two onboard SOC+ on one I/O board can be used at
the same time.
5.1.11 Verifying the Controller Boards and Paths to the
A3x00/A3500FC
See Section 4.1.2 “Checking the Controller LEDs” in the Sun StorEdge
A3500/A3500FC Controller Module Guide for information on interpreting the controller
status LED pattern.
A controller held in reset (offline) does not necessarily mean that the controller is
defective. Rather, it indicates that the I/O between the controller and the host has
been interrupted. There are several conditions that can cause this: a defective I/O
board, a defective HBA, a defective host SCSI cable or bent pins on the cable, a
defective SCSI terminator, a defective controller (either one), or the user may have
taken the controller offline manually.
RAID Manager 6 Recovery Guru provides step by step instructions to assist you in
troubleshooting a data path failure or an offline controller. If you have already
replaced the controller board and the replacement controller still cannot be brought
online, this is a good indication that the data path failure is with another defective
component.
The following two commands are very helpful in troubleshooting data path failures:
rdacutil -U and rdacutil -u.
The rdacutil -U command unfails the alternate controller without sending I/O
through the data path to check the controller. The controller goes through SOD self
diagnostics which is not an extensive diagnostics test. If the controller passes SOD
then it should come online.