Product guide
Table Of Contents
- Introduction
- Arbitrated Loop Configurations
- Fabric Configurations
- UnixWare 7 Fabric Environment
- Setup Checklist
- Verifying Symmetrix Configuration
- Verifying and Updating HBA BIOS-Level Configurations
- Scanning for the Symmetrix on an HBA BIOS Level
- Install the HBA Driver
- Changing System Configuration File Settings
- UnixWare 7 Conventions and Persistent Binding Information
- Beware of Ghost Names
- Configuring and Enabling Persistent Binding
- Troubleshooting
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Symmetrix Fibre Channel with Qlogic HBAs on UnixWare 7
Fabric Configurations
Example Assume a Volume Logix configuration for a fabric zone that contains
two QLA2200-EMC HBAs and one Symmetrix port, with 70 LUNs:
Bad Configuration
Assume a LUN range of 0–70 as follows:
The host will recognize LUNs 0–31 as target 0, 32–49 as target 1, and
64–70 as target 2. LUNs 50–63 will not be seen by the host because
HBA2 does not have LUN 32 configured. Without LUN 32 configured
on HBA2, LUNs 33–63 will not be scanned.
Good Configuration
For the host to recognize all 70 devices, LUN assignments should be
made as follows (for example):
In this example, the Symmetrix is configured with two different LUN
ranges, while the Symmetrix device numbers remain the same as in
the Bad Configuration example above. HBA1 will be allowed to use
LUNs 0–49 and HBA2 will be allowed to use LUNs 64–84. With LUN
ranges starting at 0 for HBA1 and 64 for HBA2, the host will see all
LUNs.
HBA Number of Devices LUN Range Devices Seen by Host
150 0–49 c1b0t0d (0–31)
c1b0t1d (0–17)
220 50–70 c2b0t2d (0–5)
HBA Number of Devices LUN Range Devices Seen by Host
150 0–49 c1b0t0d (0–31)
c1b0t1d (0–17)
220 64–84 c2b0t2d (0–19)