Emulex 355 manual Port Recovery

EMULEX MODEL 355 SAN STORAGE SWITCH	CHAPTER 3: SWITCH MANAGEMENT
USER’S GUIDE

Port Recovery

The following settings are available.

Setting	Description
Bad Device Recovery	When a port is already inserted into a zone, the port transforms F8
	Failure notifications into F7 Initialization notifications. When this
	occurs, the port is bypassed and F7 Initialization notifications are
	allowed in the zone. Once the initialization is complete, the Bad Zone
	Recovery Policy is operational and prevents a port that continues to
	transmit F8 Failure notifications from inserting into the zone.
	Note: If this policy is disabled while the Bad Zone Recovery policy is
	enabled, a zone that does go down will still allow the Bad Zone
	Recovery policy to reset the zone and allow ports to be
	reinserted.
	When enabled, this policy prevents devices that send F8 Failure
	notifications from inserting into a zone. The ability to remove devices
	that generate F8 Failure notifications automatically and
	instantaneously guarantees continual system operation.
	When disabled, this policy allows devices that send F8 Failure
	notifications to insert into a zone and does not consider F8 Failure
	notifications when determining whether to insert a device or not.
Clear on Stall	In situations where the switch is operating in switching mode, some
	devices may fall into an operating mode where the device has
	opened a target but has not released the connection to the target.
	When this policy is enabled, the switch can detect this condition and
	automatically recover when this situation arises.
Bypass on No Activity	The switch detects the amount of time a data stream has gone
	without receiving a comma. The time setting is set to 100 (.001
	seconds). When this policy is enabled, the switch bypasses the
	disruptive port when the threshold is exceeded.
Bypass on Ordered Set Error	Ordered Set (OS) errors are detected and counted for each individual
	port. When this policy is enabled, a port is bypassed when its OS
	count exceeds the threshold setting. The threshold setting is based
	on the number of ordered set errors identified in 10 seconds.
	Note: This threshold setting can be adjusted on the Web Manager’s
	Advanced Functions Switch Thresholds page.
Bypass on CRC Error	Cyclic Redundancy Check (CRC) errors are detected and counted for
	each individual port. When this policy is enabled, a port is bypassed
	when its CRC count exceeds the threshold setting. The threshold
	setting is based on the number of CRC errors identified in 10
	seconds.
	User intervention is required to return the port into the zone.
	Recovery methods include replacing the defective component,
	cycling power to the device on the port, removing and reinserting the
	bypassed port, or cycling power to the switch.
	Note: This threshold setting can be adjusted on the Web Manager’s
	Advanced Functions Switch Thresholds page.

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PART NUMBER 00041407-002 REV. B