1. Copyright © 2014 EMC Corporation. All Rights Reserved. Managing Host Access to Storage Upon completion of this module, you should be able to: Explain Access Logix functionality Explain LUN masking and mapping Identify initiator and connectivity information Managing storage groups Managing Host Access to Storage1

2. Copyright © 2014 EMC Corporation. All Rights Reserved. Managing Host Access to Storage This lesson covers the following topics: Access Logix definition and functionalities LUN Masking and Mapping Lesson 1: Access Logix 2Managing Host Access to Storage

3. Copyright © 2014 EMC Corporation. All Rights Reserved. Access Logix Host Access to Data Create Storage Groups Factory Installed Feature One or more LUNs or metaLUNs Access to LUNs only is a Storage Group Storage Groups Cannot be disabled Run within VNX OE Managing Host Access to Storage3

4. Copyright © 2014 EMC Corporation. All Rights Reserved. Access Logix Functionality Multiple Host Connections to an Array  Exclusive access to storage resources  Presents a ‘Virtual Storage System’ LUN masking Maps VNX LUNs to host LUNs Access Logix Database  Manages the Access Control List  Manages Initiator Registration Records Managing Host Access to Storage4

5. Copyright © 2014 EMC Corporation. All Rights Reserved. LUN Masking and LUN Mapping Physical Storage Array Access Logix Database Virtual Storage Systems Storage Groups Server A ALU 7 ALU 6 ALU 5 ALU 4 ALU 3 ALU 2 ALU 1 ALU 0 Server B Storage Group A Storage Group B Access Control List HLU 0 HLU 1 HLU 2 HLU 3 Access Control List HLU 0 HLU 1 HLU 2 HLU 3 LUN 0 LUN 1 LUN 2 LUN 3 LUN 0 LUN 1 LUN 2 LUN 3 Managing Host Access to Storage5

6. Copyright © 2014 EMC Corporation. All Rights Reserved. Access Logix Limits Host may be in 1 storage group per storage system Maximum of 4 storage systems per host Number of hosts per storage system is model dependent A storage group is local to 1 storage system Maximum number of LUNs in a storage group is model dependent Host agent (optional) provides LUN mapping User must be authorized to manage Access Logix  Privileged User list or Navisphere Security file Managing Host Access to Storage6

7. Copyright © 2014 EMC Corporation. All Rights Reserved. Access Control Lists: Fibre Channel LUN UID - 128 bits  Globally unique will never be re-used  Example: 60:06:01:60:1E:40:33:00:69:6A:0A:80:D 1:0A:E3:11 Host HBA WWN - 128 bits  Static  Example: 20:00:00:00:C9:3D:A6:5C.x.x.x.x.x.x.x.x. VNX SP port WWN - 128 bits  Static  Example: 50:06:01:60:88:60:06:02:50:06:01:60:08 :60:06:02 Host access request forces a lookup to find a match  If OK, host is allowed access  If no match, host is denied access Managing Host Access to Storage7

8. Copyright © 2014 EMC Corporation. All Rights Reserved. Access Control Lists: iSCSI LUN UID - 128 bits  Globally unique will never be re-used  Example: 60:06:01:60:08:F0:1E:00:BA:48:55:90:46: 3D:DD:11 Host IQN or EUI  Persistent  iSCSI provides two name formats for different types of naming authorities:  Examples:  iSCSI Qualified Name (IQN)  Format: iqn.yyyy-mm.{reversed domain name}  Extended Unique Identifier (EUI)  Format: eui (e.g. eui.02004567A425678D) VNX port IQN or EUI - Static  Example:  iqn.1992- 04.com.emc:cx.fcntr00130702376.a4 Managing Host Access to Storage8

9. Copyright © 2014 EMC Corporation. All Rights Reserved. Managing Host Access to Storage During this lesson the following topics were covered: Access Logix definition Access Logix functionality and limits Lesson 1: Summary 9Managing Host Access to Storage

10. Copyright © 2014 EMC Corporation. All Rights Reserved. Managing Host Access to Storage This lesson covers the following topics: Initiator and connectivity entries Managing storage groups Lesson 2: Managing Host Access 10Managing Host Access to Storage

11. Copyright © 2014 EMC Corporation. All Rights Reserved. Unisphere Host Initiators 11Managing Host Access to Storage

12. Copyright © 2014 EMC Corporation. All Rights Reserved. View Initiator Information 12Managing Host Access to Storage

13. Copyright © 2014 EMC Corporation. All Rights Reserved. Connect Host 13Managing Host Access to Storage

14. Copyright © 2014 EMC Corporation. All Rights Reserved. Edit a Host Initiator 14Managing Host Access to Storage

15. Copyright © 2014 EMC Corporation. All Rights Reserved. Storage Groups LUNs presented only to hosts in the group Hosts only see LUNs in the group Restrict LUN access to specific hosts Maximum number of LUNs in a storage group is model dependent Single or Multiple LUNs Model Dependent Host may be in 1 storage group per storage system Maximum of 4 storage systems per host Multiple Storage Groups 15Managing Host Access to Storage

16. Copyright © 2014 EMC Corporation. All Rights Reserved. Creating a Storage Group 16Managing Host Access to Storage

17. Copyright © 2014 EMC Corporation. All Rights Reserved. Adding LUNs to a Storage Group 17Managing Host Access to Storage

18. Copyright © 2014 EMC Corporation. All Rights Reserved. Adding Hosts to a Storage Group 18Managing Host Access to Storage

19. Copyright © 2014 EMC Corporation. All Rights Reserved. Deleting a Storage Group 19Managing Host Access to Storage

20. Copyright © 2014 EMC Corporation. All Rights Reserved. Managing Host Access to Storage During this lesson the following topics were covered: Initiator and connectivity entries Managing storage groups Lesson 2: Summary 20Managing Host Access to Storage

21. Copyright © 2014 EMC Corporation. All Rights Reserved. Summary Key points covered in this module: Access Logix allows hosts to access data on the array A storage group is a collection of one or more LUNs or metaLUNs to which you connect one or more hosts. Hosts can access only the LUNs in the storage group to which it is connected 21Managing Host Access to Storage

22. Copyright © 2014 EMC Corporation. All Rights Reserved. This slide is intentionally left blank. Managing Host Access to Storage22