Specifications

Note: The IBM Subsystem Device Driver does not support the Sun host system in
a clustering environment. To have failover protection on an open system, the
Subsystem Device Driver requires a minimum of two adapters. You can run
the Subsystem Device Driver with one SCSI adapter, but you have no
failover protection. The maximum number of adapters supported is 16 for a
total of 32 SCSI ports.
The following two Subsystem Device Drivers support Sun host systems:
v Sun host hardware platforms limited to 32-bit mode and all Sun host
systems running Solaris 2.6.
v Sun host hardware platforms with 64-bit mode capabilities running Solaris
2.7 or Solaris 8.
Mapping hardware
Perform the following steps to map the hardware if your host is not turned on:
1. Turn on the Sun host system and wait for the host to perform the self-tests.
2. Press Stop+A.
3. Type printenv at the console prompt.
4. Review the list that is displayed to determine the value of the scsi-initiator-id.
The target ID is reserved for the system and must not be used by another
device.
Perform the following steps to map the hardware if your host is turned on:
1. Type eeprom at the console prompt.
2. Review the list that displays to determine the value of the scsi-initiator-id.
The target ID is reserved for the system and must not be used by another
device.
Configuring host device drivers
The following instructions explain how to update device driver configuration files on
the Sun host to enable access to target and LUN pairs configured on the ESS:
1. Change to the device driver configuration subdirectory by typing:
cd /kernel/drv
2. From the command prompt, type cp sd.conf sd.conf.bak to backup the sd.conf
file in the subdirectory.
3. Edit the sd.conf file to add support for the ID and LUN pairs that are configured
on the ESS. Figure 51 on page 101 shows the lines that you would add to the
file to access LUNs0-7ontarget 8.
Note: Do not add duplicate target and LUN pairs.
100 ESS Host Systems Attachment Guide