Specifications

Chapter 4 System Software Installation and Configuration 4-3
RAID Manager 6.22 supports both SCSI and Fibre Channel interconnect to the
A3x00/A3500FC controller module. RAID Manager 6.22 supports only SCSI when
you are using the Solaris 2.5.1 11/97 operating environment. See FIN I0688. The SCSI
driver stack is the same as RAID Manager 6.1.1. The driver stack for Fibre Channel
is:
■ SBus/soc+socal/sf/ssd
■ PCI/QLC2100/ifp/ssd
■ PCI/QLC220x/fcp/ssd
4.2.1 sd_max_throttle Settings
■ sd_max_throttle for the A3x00 is set by sd. Manually setting
sd_max_throttle in /etc/system is not necessary unless the current value is
too high. A good estimate is sd_max_throttle x no. of LUNs per module <=
180 for systems using an UDWIS/SBus host bus adapter (HBA). 180 is close to the
upper limit of command entries in the current generation of UDWIS/SBus (SCSI)
HBAs. sd_max_throttle has no effect on the current ssd.
■ Refer to FIN I0579-1 for further information.
4.2.2 Generating Additional Debug Information
After setting sd_error_level = 0 or ssd_error_level = 0, the following
error messages may appear on the console or in /var/adm/messages:
The messages are warnings that the target driver sd or ssd has tried a command
that didn’t work. Some versions, for example, try to read the wrong mode sense
page for power management data. You can safely ignore these messages.
Bug 4358075 describes error messages when the RAID Manager 6 software probes
all array devices mode page 2C and receives errors from those arrays that don’t
support page 2C. The bug 4358075 messages are expected and are not seen
unless sd_error_level = 0 or ssd_error_level = 0.
The following kernel variable could be set to capture more information regarding
why the controller failover occurred:
Failed CDB:0xbe 0x1e 0x12 0x1 0xc1 0x0 0x10 0x0 0x0 0x0 0x0 0x0
/pci@1f,4000/scsi@4,1/sd@5,0 (sd50):
Sense Data:0x70 0x0 0x5 0x0 0x0 0x0 0x0 0x28 0x0 0x0 0x0 0x0 0x24
0x0 0x
0 0x0 0x0 0x0 0xe 0x12