User`s guide

Table 2–3: Installing Cables for RA3000 Conﬁguration Using External

Termination and Y Cables (cont.)

The maximum length of the SCSI bus segment, including the combined length of the BN38C, BN37A-0E,

and BN21K (or BN21L or BN31G) cables and internal device length, must not exceed 25 meters.

The following sections describe how to install a KZPBA-CB UltraSCSI PCI

adapter in more detail. Section 2.2.5 provides illustrations of cluster

conﬁgurations.

2.2.1 Obtaining the Firmware Release Notes

You may be required to update the system or SCSI controller ﬁrmware

during an Available Server or Production Server installation, so you may

need the ﬁrmware release notes. Obtain the ﬁrmware release notes from

the current Alpha Systems Firmware Update CD-ROM.

_______________________ Note _______________________

To obtain the ﬁrmware release notes from the Firmware Update

Utility CD-ROM, your kernel must be conﬁgured for the ISO

9660 Compact Disk File System (CDFS).

To obtain the release notes for the ﬁrmware update follow these steps:

1. At the console prompt, or using the system startup log if the DIGITAL

UNIX operating system is running, determine the drive number of the

CD-ROM.

2. Boot the DIGITAL UNIX operating system if it is not already running.

3. Log in as root.

4. Place the Alpha Systems Firmware Update CD-ROM applicable to the

DIGITAL UNIX version installed (or to be installed) into the drive.

5. Mount the CD-ROM as follows (/dev/rz4c is used as an example

CD-ROM drive):

# mount -rt cdfs -o noversion /dev/rz4c /mnt

6. Copy the appropriate release notes to your system disk. In this

example, obtain the ﬁrmware release notes for the AlphaServer

4000/4100 from the Alpha Firmware Update 3.9 CD-ROM:

# cp /mnt/doc/alpha4100_v48_fw_relnote.txt as4100-rel-notes

7. Unmount the CD-ROM drive.

# umount /mnt

Using the StorageWorks RAID Array 3000 in a TruCluster Conﬁguration 2–9