Q-Logic 8200 SERIES manual Active Boot Set, Active/Active RAID, Active/Passive RAID, Active Path

Models: 8200 SERIES

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Glossary

Active Boot Set

The boot set used to supply system software in a running system.

Active/Active RAID

A storage device that presents volumes on multiple ports, and the volumes are simultaneously active on all ports. See also Active Path, Passive Path, and In Use Path.

Active/Passive RAID

A storage device that presents volumes on multiple ports of multiple storage controllers, and at any point in time a volume is only active on the ports of one controller and passive on the ports of the other controllers. See also Active Path, Passive Path, and In Use Path.

Active Path

A path that is currently available for use. See also Active/Active RAID, Active/Passive RAID, Passive Path, and Primary Path.

Back-side Path

A path between the SANbox SSP and the physical storage.

Boot Set

Either of two selectable locations provided by SANbox SSP for storing a system software image.

CLI

Command Line Interface. SANbox SSP provides a CLI through the local administrative console (serial port console), telnet, or SSH.

Cross-connected

A property of a high-availability configuration in which both SANbox SSPs connect to both back-end SANs, allowing either SANbox SSP to access both controllers of a dual-controller RAID.

Default Boot Set

The boot set that becomes the active boot set when the system is started, unless the user selects a different boot set.

Failback

When a previously failed path is made available once again, I/O traffic can resume use of that path. In some cases, the system begins using the original path automatically (auto-failback). In other cases, operator intervention is required to allow the system to begin using the original path (manual-failback).

In an active/passive configuration, the term failback commonly refers to traffic resuming the use of the primary paths, instead of the secondary paths, which requires that the primary paths be made active.

SN0054628-00 A

Glossary-1

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Q-Logic 8200 SERIES Active Boot Set, Active/Active RAID, Active/Passive RAID, Active Path, Back-side Path, Cross-connected