HSG80 Enterprise/Modular Storage RAID Array Fibre Channel Solution Software V8.7A for Windows Release Notes (AA-RH0QL-TE, July 2003)

Host Operating System Notes
55Release Notes – HSG80 Enterprise/Modular Storage RAID Array Fibre Channel Solution
Software Version 8.7A for Windows
Large LUNs for Windows NT and Windows 2000
Enabling Large LUNs allows a Windows NT or Windows 2000 server to have access
to LUNs beyond the 0-7 range, and to access more than 8 LUNs per target. The host
can access unit D10 by leaving the connection offset at 0.
The maximum number of LUNs supported is 256 per storage system. If using Secure
Path Version 3.1A SP1, the maximum number of LUNs is 64 per storage system. If
using Secure Path Version 4.0x, the maximum number of LUNs is 256 per storage
system. The LUNs can be contiguous or non contiguous.
NOTE: Large LUNs are supported on Windows NT, Windows 2000 Server, and Windows 2000
Advanced Server.
Large LUN Utility for Windows
The Large LUN utility is available for download at the StorageWorks website:
http://h18006.www1.hp.com/storage/index.html
NOTE: The Large LUN utility is unnecessary if ACS Version 8.6 or higher is running alone or in
conjunction with Secure Path software, which has built-in support.
Controller Configuration
It is recommended that you set the SCSI_VERSION to SCSI-3 for maximum
availability.
• Multi-bus failover mode (with Secure Path Version 3.1A SP1)—Support for 64
LUNs per storage system (SCSI-2 mode) or 63 LUNs + 1 CCL (SCSI-3). These
LUN numbers must be between 0 and 63.
• Multi-bus failover mode (with Secure Path Version 4.0x)—Support for 128 LUNs
per storage system (SCSI-2 mode) or 127 LUNs + 1 CCL (SCSI-3). These LUN
numbers must be between 0 and 199.
• Transparent failover mode—Support for 128 LUNs per storage system (SCSI-2
mode) or 127 LUNs + 1 CCL (SCSI-3). These LUN numbers must be between 0
and 199.