HP HSG Array Controller - Manual (Page 159)

Telnet Commands B-19
Compaq Confidential – Need to Know Required
Writer: Bill Reitz Project: StorageWorks Fibre Channel Storage Switch User's Guide Comments:
Part Number: AA-RHBYA-TE 135267-001 File Name: i-appb Telnet Commands Last Saved On: 4/7/99 12:36 PM
Table B-5
flashSet Command Field Descriptions
continued
Field Description
op_mode The administrator determines the adapter, then sets the Switch for the
corresponding operating mode. The modes are:
0 - Normal operating mode, none of the following modes are in effect
1 - Tachyon operating mode. Set this mode when there is one or more Tachyon
host adapters connected to the Fabric, and a protocol other than SCSI-FCP is being
used over this host adapter. When this mode is set, multiple Sequences from
different sources will be interleaved to Tachyon at Sequence boundaries rather than
at frame boundaries, resulting in better performance from Tachyon.
2 - Isolated operating mode. Set this mode only if the Switches E_Port discovery
process (transmission of a Class F frame) causes some attached device to fail.
When this mode is set, Switches will not join to become a Fabric.
4 - No_Probe operating mode. Set this mode only if the Switches N_Port discovery
process (PLOGI, PRLI, INQUIRY) causes some attached device to fail. When this
mode is set, devices that do not register themselves with the Name Server will not
be present in the Name Server data base
8 - No_MCast operating mode. Set this mode only if buffer-to-buffer credit values
greater than 16 are needed, and broadcast and multicast are not needed. When this
mode is set, the normal range of buffer-to-buffer credit is changed from 1-16 to 1-
62 and broadcast and multicast are disabled.
The default is 0.
These modes are additive, for example to set a Switch in Tachyon mode and in
No_MCast mode, the operating mode should be set to 9. Any combination of bit
maps can be set up to 15, all values above 15 are ignored.
continued