HP 316095-B21 - StorageWorks Edge Switch 2/24 Installation Manual page 45

a. At the R_A_TOV field, type a value between 10 through 1200 tenths of a
second (one through 120 s). The default is 100 tenths of a second (10 s).
NOTE: All fabric-attached switches must be set to the same R_A_TOV. If the value is
not compatible, the E_Port connection to the switch segments and the switch cannot
communicate with the fabric. In addition, the R_A_TOV must be greater than the
E_D_TOV.
b. At the E_D_TOV field, type a value between 2 through 600 tenths of a second
(0.2 through 60 s). The default is 20 tenths of a second (2 s).
NOTE: All fabric-attached switches must be set to the same E_D_TOV. If the value is
not compatible, the E_Port connection to the switch segments and the switch cannot
communicate with the fabric. In addition, the E_D_TOV must be less than the
R_A_TOV.
c. Select from the Switch Priority drop-down list to set the switch priority.
Available selections are Default, Principal, and Never Principal. The default
setting is Default.
This value designates the fabric's principal switch. The principal switch is
assigned a priority of 1 and controls the allocation and distribution of domain
IDs for all fabric elements (including itself).
Principal is the highest priority setting, Default is the next highest, and
Never Principal is the lowest priority setting. The setting Never Principal
means the switch is incapable of becoming a principal switch. If all switches
are set to Principal or Default, the switch with the highest priority and the
lowest world wide name (WWN) becomes the principal switch.
At least one switch in a fabric must be set as Principal or Default. If all
switches are set to Never Principal, all interswitch links (ISLs) segment.
d. Select from the Interop Mode drop-down list to set the switch operating
mode. This setting only affects the mode used to manage the switch; it does
not affect port operation. Available selections are:
— Homogeneous Fabric - Select this option (default) if the switch is
— Open Fabric 1.0 - Select this option for managing heterogeneous fabrics
edge switch 2/24 installation guide
fabric-attached only to other HP StorageWorks directors or switches
operating in Homogeneous fabric mode.
and if the switch is fabric-attached to HP directors or switches and
open-fabric compliant switches produced by other original equipment
manufacturers (OEMs).
Installing and Configuring the Edge Switch 2/24
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