Copyright © 2014 EMC Corporation. All Rights Reserved. Block Storage Provisioning and Management Upon completion of this module, you should be able to: Describe configuration guidelines for provisioning storage Configure and manage storage objects Block Storage Provisioning and Management1

Copyright © 2014 EMC Corporation. All Rights Reserved. Block Storage Provisioning and Management This lesson covers the following topics: General considerations Storage Pools and RAID Groups LUNs Lesson 1: VNX Storage Objects Block Storage Provisioning and Management2

Copyright © 2014 EMC Corporation. All Rights Reserved. General Considerations for Configuring Storage Drive types  Drives selection should be based upon the expected workload  FLASH for extreme performance  SAS for general performance  NL-SAS for streaming, aging data and archives, and backups RAID levels  Match the appropriate RAID level with the expected workload  RAID 1/0 for heavy transactional random writes (> 25%)  RAID 5 for medium-high performance, general workloads, and sequential I/O  RAID 6 for NL-SAS read-based workloads and archives Block Storage Provisioning and Management3

Copyright © 2014 EMC Corporation. All Rights Reserved. Pool vs. RAID Group Extreme Performance Tier (SSD) Performance Tier (SAS) Capacity Tier (NL-SAS) RAID 1/0: (4+4) RAID 5: (8+1) RAID 6: (14+2) Pool Example RAID 1/0: (4+4) RAID 5: (8+1) RAID 6: (14+2) RAID 5: (4+1) RAID 6: (6+2) RAID Group 0 RAID Group 1 RAID Group 2 RAID Group 3 RAID Group 4 RAID Group Examples Block Storage Provisioning and Management4

Copyright © 2014 EMC Corporation. All Rights Reserved. Pool Considerations Pools can contain a few or hundreds of disks Spreads workloads over many resources Can contain a single drive type (homogeneous) or multiple drive types (heterogeneous) Building blocks for FAST VP operations RAID Configuration is moved from the pool level to the tier level Users can select RAID protection by tier Mixed RAID types supported within a Pool Once the tier is created, the RAID Configuration for that tier in that pool cannot change Multi-Pool Support Separate workloads for different I/O profiles Dedicate resources for performance goals Block Storage Provisioning and Management5

Copyright © 2014 EMC Corporation. All Rights Reserved. RAID Group Considerations Limited to a single drive type and a maximum of 16 drives per RAID group Drive count Drives can be selected from the same bus (horizontal) or different busses (vertical) Best practice is to use horizontal selection Drive location Used on 4 +1 RAID 5 groups when the predominant workload is large-block random read activity Large element size Block Storage Provisioning and Management6

Copyright © 2014 EMC Corporation. All Rights Reserved. Thick LUNs Capacity of a thick LUN, is distributed equally across the disks in the pool Full capacity allocated at time of creation Capacity of a thick LUN, same as the user capacity seen by the server Uses slightly more capacity than user data Block Storage Provisioning and Management7

Copyright © 2014 EMC Corporation. All Rights Reserved. Thin LUNs Capacity visible to the server is independent of the available physical storage in the pool Competes with other LUNs in the pool for the pool’s available storage A thin LUN can run out of disk space if the pool to which it belongs runs out of disk space A thin LUN uses slightly more capacity than the amount of user data written to it due to the metadata Block Storage Provisioning and Management8

Copyright © 2014 EMC Corporation. All Rights Reserved. Classic LUNs Created on RAID Groups LBAs are physically contiguous All space allocated at creation timePredictable performance and data layout Simultaneous access through SPA and SPB Trespassing of LUNs no longer required Support active-active host access Block Storage Provisioning and Management9

Copyright © 2014 EMC Corporation. All Rights Reserved. Block Storage Provisioning and Management During this lesson the following topics were covered: General considerations Storage Pools and RAID Groups LUNs Lesson 1: Summary Block Storage Provisioning and Management10

Copyright © 2014 EMC Corporation. All Rights Reserved. Block Storage Provisioning and Management This lesson covers the following topics: Creating Storage Pools Creating LUNs Displaying and monitoring storage objects Lesson 2: Managing Storage Objects 11Block Storage Provisioning and Management

Copyright © 2014 EMC Corporation. All Rights Reserved. Provisioning Storage with Unisphere 12 The Pools tab is selected by default Block Storage Provisioning and Management

Copyright © 2014 EMC Corporation. All Rights Reserved. Creating a Storage Pool 13 Multiple combo boxes will be shown for the level of performance that can be achieved with the installed disk types Block Storage Provisioning and Management

Copyright © 2014 EMC Corporation. All Rights Reserved. Creating a Pool LUN 14 Thin LUNs are created by default. To create a Thick LUN uncheck the Thin box. Block Storage Provisioning and Management

Copyright © 2014 EMC Corporation. All Rights Reserved. Creating a Pool LUN 15Block Storage Provisioning and Management

Copyright © 2014 EMC Corporation. All Rights Reserved. Displaying Pool Properties (General Tab) 16Block Storage Provisioning and Management

Copyright © 2014 EMC Corporation. All Rights Reserved. Displaying Pool Properties (Disks Tab) 17Block Storage Provisioning and Management

Copyright © 2014 EMC Corporation. All Rights Reserved. Displaying Pool Properties (Advanced Tab) 18Block Storage Provisioning and Management

Copyright © 2014 EMC Corporation. All Rights Reserved. Displaying Pool Properties (Tiering Tab) 19Block Storage Provisioning and Management

Copyright © 2014 EMC Corporation. All Rights Reserved. Displaying Pool LUN Properties (General Tab) 20Block Storage Provisioning and Management

Copyright © 2014 EMC Corporation. All Rights Reserved. Displaying Pool LUN Properties 21Block Storage Provisioning and Management

Copyright © 2014 EMC Corporation. All Rights Reserved. Creating a Storage Pool: RAID Group (General Tab) 22 Users have the option to manually select the disks for the RAID Group Block Storage Provisioning and Management

Copyright © 2014 EMC Corporation. All Rights Reserved. Creating a Storage Pool: RAID Group (Advanced Tab) 23Block Storage Provisioning and Management

Copyright © 2014 EMC Corporation. All Rights Reserved. Creating a RAID Group LUN (General Tab) 24Block Storage Provisioning and Management

Copyright © 2014 EMC Corporation. All Rights Reserved. Creating a RAID Group LUN (Advanced Tab) 25Block Storage Provisioning and Management

Copyright © 2014 EMC Corporation. All Rights Reserved. Displaying RAID Group Properties 26Block Storage Provisioning and Management

Copyright © 2014 EMC Corporation. All Rights Reserved. Displaying RAID Group LUN Properties (General Tab) 27Block Storage Provisioning and Management

Copyright © 2014 EMC Corporation. All Rights Reserved. Displaying RAID Group LUN Properties 28Block Storage Provisioning and Management

Copyright © 2014 EMC Corporation. All Rights Reserved. Block Storage Provisioning and Management During this lesson the following topics were covered: Creating Storage Pools Creating LUNs Displaying and monitoring VNX storage Lesson 2: Summary 29Block Storage Provisioning and Management

Copyright © 2014 EMC Corporation. All Rights Reserved. Summary Key points covered in this module: Described characteristics of VNX storage objects such as pools, LUNs, disks, and RAID Groups. Considerations for employing the different storage object options Both thick and thin LUNs can share the same pool Steps to create Pool and RAID Group storage pools, and thin and thick LUNs from these pools. Block Storage Provisioning and Management30