Appendix: 7210 SAS boot procedures

This chapter describes the booting procedures for 7210 SAS devices.

This chapter provides information about booting a factory-shipped 7210 SAS device for the first time. It also includes information to boot the 7210 SAS device after subsequent reboots that are initiated by issuing the admin reboot command. For subsequent reboots, the BOF and the TiMOS image are stored on the local flash.

The 7210 SAS supports two modes for a first-time boot of a factory-shipped node or to boot the node after the admin>reboot auto-init command is executed. The supported boot modes are:

auto-init mode

In this mode, the boot procedure uses an external DHCP server to provide the IP address and other IP parameters, and the BOF configuration, which contains the image location and the configuration file location. This mode does not require user intervention and provides an option for zero-touch provisioning of the node.

This method also provides an option to modify the default values of the BOF parameters used for auto-init and customize a specific set of BOF parameters so that auto-init is supported in the customer network environment. See Auto-init mode for a list of BOF parameters that the user can modify.

The user requires console access to modify BOF parameters. After the partial BOF is saved, the system continues using the auto-init mode procedure to boot, with auto-init using the modified values of the BOF parameters that the user has provided.
manual mode

In this mode, the boot procedure requires user intervention to complete the process. During the boot process, the user must log in to the console on the node and configure the IP address, other IP parameters, and the location of the image file and configuration file. The following options are supported to boot the 7210 SAS device in manual mode:
- boot from the image on flash
- boot from the network using uplink ports
- boot from the network using the OOB Ethernet management port

The following table lists the supported boot procedures for 7210 SAS devices.

Table: 7210 SAS boot procedure overview
Section	Description
Procedure to boot using auto-init mode	This procedure uses the auto-init mode to boot the 7210 SAS device.
Procedures to boot using manual mode	This procedure uses the manual mode to boot the 7210 SAS device. In manual mode, the device can be booted from the local flash or it can be booted from the network using an uplink port or the OOB Ethernet management port. The following procedures apply: Procedure to boot from the image on flash in manual mode This procedure uses the manual mode to boot the 7210 SAS device from the local flash. Procedure to boot from the network in manual mode using uplink ports This procedure uses the manual mode to boot the 7210 SAS device from the network using an uplink port. Procedure to boot from the network in manual mode using the OOB Ethernet management port This procedure uses the manual mode to boot from the 7210 SAS device from the network using the OOB Ethernet management port.
Procedure to boot when the BOF is present locally	This procedure uses the BOF that is present locally to boot the 7210 SAS device.
Procedure to boot in the satellite mode	This procedure boots the 7210 SAS device in the satellite mode.
Procedure to boot in the standalone-VC mode	This procedure boots the 7210 SAS device in the standalone-VC mode.

Note:

Console outputs shown in this chapter are examples only; actual displays may differ depending on the 7210 SAS platform, supported functionality, and user configuration.