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. |
|
|
EMULEX CORPORATION | 31 |
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