If you are blocking
•In Chargeback 
) button for the element you want to delete.
2.If the element has multiple access points, you are asked which one you want to delete. Take one of the following actions:
•Delete the element and its access points. This option lists not only the switch you want to delete, but also the other elements that use the same switches and proxies as the element you want to delete. For example, assume you want to delete Switch_A. Switch_B was used to discover Switch_A. Let's assume Switch_B is also the only path to Switch_D. If you delete Switch_B, you will no longer have access to Switch_D. This option would list Switch_D as one of the other elements that need to be deleted.
•Delete the element. The element may reappear the next time you obtain element details. This is because not all switches and proxies connected to the element have been removed. For example, assume you want to delete Switch_A. Switch_B is connected to Switch_A. If you do not delete Switch_B, the next time you obtain element details Switch_B will most likely find Switch_A again.
3.Click OK.
4.Be sure to delete the element from any scheduled automatic discovery task in HP SIM. If a scheduled automatic discovery task includes the deleted element, SIM will rediscover the deleted element during the next automatic discovery task.
Working with Quarantined Elements
When an element is quarantined, it is not included in the Discovery Data Collection process until it is removed from quarantine. For more information, see ”Removing an Element from Quarantine” on page 80. If a problem occurs with a host or
Placing an Element in Quarantine
When you click Get Details on the Discovery Data Collection page, the management server automatically obtains details for the elements in the selected discovery group. Assume you want to discover all the elements in a discovery group, except for one, which is being taken off of the network for maintenance. You can use the quarantine feature to exclude this element from discovery.
NOTE: After you perform Discovery Data Collection for the discovery group containing the quarantined elements, the quarantined elements appear as missing throughout the product. The management server marks the quarantined elements as missing because it cannot obtain details from the quarantined element.
To quarantine an element:
1.Select the check boxes for the elements you want to quarantine on the Discovery Data Collection page.
2.Click Set Quarantine.
3.When you are asked if you want to quarantine the selected elements, click OK.
80 Discovering Switches, Storage Systems, NAS Devices, and Tape Libraries