Secure Path v2.0 for Sun Solaris Installation and Reference Guide

2-6 StorageWorks Secure Path Version 2.0 for Sun Solaris
Compaq Confidential – Need to Know Required
Writer: Cyndi Vaccaro Project: StorageWorks Secure Path Version 2.0 for Sun Solaris Comments:
Part Number: AA-RKYDA-TE File Name: c-ch2 Technical Description.doc Last Saved On: 12/21/99 4:52 PM
Secure Path Path State
The device path is the physical I/O path through which current I/O is moved
between the host system and the LUN on the storage system. A Secure Path
device path consists of a single FC host bus adapter, a FC hub, a single port on
a RAID controller, and the associated cabling between the HBA and the FC
hub and between the FC hub and the controller port.
A Secure Path device path has the following states:
■ online
The online state indicates that I/O is currently accessing this path.
■ standby
The standby state indicates that the path is being held in reserve against
failure. If the online path fails, Secure Path brings the standby path into
service as the online path.
■ quiesced
This path has been temporarily taken out of service to allow hardware
maintenance, update and/or reconfiguration.
■ failed
The failed state indicates that Secure Path has closed this device path
because of an underlying error. I/O will not be directed to this path.