User`s guide

4-48 AlphaServer DS20 User’s Guide
Table 4-6 Environment Variable Summary (Continued)
Environment
Variable Function
ocp_text Overrides the default OCP display text with specified text.
os_type Specifies the operating system. Valid entries are: openvms,
unix, and nt.
password A password stored in the NVRAM used to secure the console.
pci_parity Disables or enables parity checking on the PCI bus.
pk*0_fast Enables fast SCSI mode.
pk*0_host_id Specifies the default value for a controller host bus node ID.
pk*0_soft_term Enables or disables SCSI terminators on systems that use the
QLogic ISP1040 SCSI controller.
tt_allow_login Enables or disables login to the SRM console firmware on
other console ports.