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by Christian Prediger Appel, Roland Tretau
IBM System Storage N series with VMware vSphere 4.1
Front cover
Figures
Tables
Examples
Notices
Trademarks
Preface
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Summary of changes
February 2012, Third Edition
Chapter 1. Introduction to IBM System Storage N series
1.1 Unified storage
1.2 Product overview
1.3 High availability as a cloud foundation
1.4 N series software features
1.5 IBM System Storage N series Gateways
1.6 N series disk shelf technology
1.7 Hardware summary
1.7.1 N3000 series
1.7.2 N6000 series
1.7.3 N7000 series
1.7.4 At a glance
1.8 Additional N series resources
Chapter 2. Introduction to virtualization
2.1 Advantages of virtualization
2.2 Storage virtualization
2.3 Network virtualization
2.4 Application virtualization
2.5 Server virtualization
2.5.1 VMware vSphere
2.5.2 Implementation example
Chapter 3. Benefits of N series with VMware vSphere 4.1
3.1 Increased protection with RAID-DP
3.2 Cloning virtual machines
3.3 Multiprotocol capability for storing files on iSCSI, SAN, or NFS volumes
3.4 N series LUNs for VMWare host boot
3.5 N series LUNs for VMFS datastores
3.6 Using N series LUNs for Raw Device Mappings
3.7 Growing VMFS datastores
3.8 Backup and recovery of virtual infrastructure (SnapVault, Snapshot, SnapMirror)
3.9 Using N series deduplication with VMware
3.10 Coupling deduplication and compression
Chapter 4. Planning for an N series and VMware vSphere 4.1
4.1 Planning requirements
4.1.1 Compatibility and support
4.1.2 Data ONTAP
4.1.3 VMware vSphere 4.1
4.2 Overview of solution sizing
4.2.1 VMware ESXi Server sizing
4.2.2 N series sizing
4.3 Planning for the virtualized solution
4.3.1 Storage delivering options
4.3.2 N series storage configuration
4.4 Configuration limits and guidance
4.4.1 N series volume options
4.4.2 RDMs and VMFS datastores
4.4.3 LUN sizing for VMFS datastores
4.5 Storage connectivity
4.5.1 Fibre Channel connectivity
4.5.2 IP SAN connectivity through iSCSI
4.5.3 NFS connectivity
4.6 Networking for IP storage
4.6.1 Design principles
4.6.2 Network design for storage on VMware vSphere 4.1
4.6.3 Network configuration options for the N series storage system
4.7 Increasing storage utilization
4.7.1 N series deduplication
4.7.2 Storage thin provisioning
4.7.3 Elements of thin provisioning
4.8 Snapshots
4.9 N series FlexShare
4.10 Licensing
4.10.1 VMware licensing
4.10.2 N series licensing
Chapter 5. Installing the VMware ESXi 4.1 using N series storage
5.1 Pre-installation tasks
5.2 Boot options for VMware ESXi Servers
5.3 Preparing N series for the VMware ESXi Server
5.3.1 Preparing N series LUNs for the ESXi boot from SAN
5.3.2 Zoning a LUN in the SAN switch
5.3.3 Configuring Fibre Channel HBA for boot from SAN
5.4 Installing the ESXi operating system
Chapter 6. Installing and configuring VMware vCenter 4.1
6.1 VMware vCenter 4.1 overview
6.2 Installing VMware vCenter 4.1
6.3 Basic administration with VMware vCenter
6.3.1 Creating a datacenter
6.3.2 Creating a cluster
6.3.3 Adding hosts to a cluster
6.3.4 Templates
Chapter 7. Deploying LUNs on N series for VMware vSphere 4.1
7.1 Preparing N series LUNs for VMware vSphere
7.2 Setting up thin provisioning
7.2.1 Enabling volume-level thin provisioning
7.2.2 Creating a thin provisioned LUN on N series systems
7.2.3 Creating an initiator group on N series systems
7.2.4 Creating a non-thin provisioned LUN on N series systems
7.2.5 Adding licenses to N series systems
7.3 Presenting LUNs to an ESXi server over Fibre Channel
7.4 Using N series LUNs for Raw Device Mapping
7.4.1 RDM compatibility mode
7.4.2 Attaching an RDM disk device to a virtual machine
7.5 Creating a VMKernel portgroup on VMware vSphere 4.1
7.6 Presenting LUNs to VMware ESXi Server over iSCSI protocol
7.7 Presenting an iSCSI LUN directly to a virtual machine
7.8 NFS volumes on VMware vSphere 4.1
7.8.1 Overview of NFS
7.8.2 Setting up an NFS volume on N series
7.8.3 NFS datastore limits and options
7.9 Partition alignment
7.9.1 Creating an aligned partition on a Windows guest OS
7.9.2 Realigning existing partitions
7.10 Advanced guest operating system I/O configurations
7.10.1 Setting SCSI time-out values for N series failover events
7.10.2 Modifying the SCSI time-out value for RHEL4 (Kernel 2.6) guests
7.11 Monitoring and management
7.11.1 Monitoring storage utilization with Operations Manager
7.11.2 Setting up notifications in Operations Manager
7.12 Storage growth management
7.12.1 Growing VMFS volumes
7.12.2 Growing a virtual disk
7.12.3 Growing an RDM
7.12.4 Expanding the guest file system (NTFS or EXT3)
Chapter 8. N series cloning
8.1 VMware and N series cloning technologies
8.1.1 Provisioning new servers
8.1.2 Cloning individual virtual machines
8.2 Cloning guests within a datastore
8.3 Cloning an entire datastore
8.4 Adding a virtual machine to the inventory
8.5 Cloning VMware ESXi servers
Chapter 9. Configuring snapshots
9.1 Storage considerations
9.2 Using VMware snapshots
9.3 Integrating VMware and N series snapshots as a solution
9.3.1 Taking a snapshot
9.3.2 Scheduling snapshots
Chapter 10. Recovery options
10.1 Restoring a volume
10.2 Restoring data from a cloned volume, as with FlexClone
10.2.1 Creating a clone
10.2.2 Configuring the cloned LUN to be accessed
10.3 Recovering an entire virtual machine
10.3.1 Copying data into the original guest datastore
10.3.2 Recovering the RDM from Snapshot copy
10.3.3 Recovering virtual machines from an NFS Snapshot copy
10.4 Recovering files within a guest
10.4.1 Creating a temporary recovery guest
10.4.2 Connecting the cloned virtual disk to the temporary guest
10.4.3 Copying the files to the target guest
10.4.4 Disconnecting the cloned disk from the temporary guest
10.4.5 Removing the cloned LUN
Chapter 11. Backup and recovery to a separate system
11.1 Licensing the SnapVault locations
11.2 Setting up the primary storage
11.3 Creating a Qtree
11.4 Setting up auxiliary storage
11.5 Configuring SnapVault
11.5.1 Running the CLI
11.5.2 Setting permissions
11.5.3 Performing an initial SnapVault transfer
11.5.4 Configuring the schedule
11.5.5 Scripting a schedule
11.6 Taping backups from the SnapVault secondary system
11.7 Restoring SnapVault snapshots
11.7.1 Preparation
11.7.2 Restoring the Qtree
11.7.3 Restoring a previous backup
11.7.4 Mapping the LUN
11.7.5 Mounting a restored image in the VMware host
Chapter 12. High availability and disaster recovery
12.1 High availability
12.1.1 N series node failures
12.1.2 VMware host failures
12.2 Disaster recovery options
12.3 Setting up disaster recovery
12.3.1 Setting up the primary storage
12.3.2 Licensing SnapMirror
12.3.3 Setting permissions
12.3.4 Configuring the volume mirror
12.3.5 Starting a mirror
12.4 Recovering from a disaster
12.4.1 Breaking the mirror
12.4.2 Mapping the LUNs and rescanning VMware hosts
12.4.3 Starting virtual machines
12.5 Returning to production
12.5.1 Replicating data from disaster recovery to the production site
12.5.2 Preventing access and performing a final update
12.5.3 Splitting the mirror
12.5.4 Re-establishing the mirror from the production to disaster recovery site
12.5.5 Configuring VMware hosts and virtual machines on the production site
12.6 Disaster recovery testing
Chapter 13. Deduplication with VMware vSphere 4.1
13.1 A-SIS deduplication overview
13.2 Storage consumption on virtualized environments
13.3 When to run deduplication
13.4 The effect of snapshots in deduplicated volumes
13.5 Enabling deduplication on a volume
13.5.1 Setting up deduplication on a volume
13.5.2 Deduplication results
13.5.3 Deduplication of LUNs
Chapter 14. Virtual Storage Console
14.1 Introduction to the Virtual Storage Console
14.1.1 License requirements
14.1.2 Architecture overview
14.1.3 Monitoring and host configuration
14.1.4 Provisioning and Cloning
14.2 Installing the Virtual Storage Console 2.0
14.2.1 Basic installation
14.2.2 Upgrading the VSC
14.3 Adding storage controllers to the VSC
14.4 Optimal storage settings for ESX/ESXi hosts
14.5 SnapMirror integration
14.5.1 SnapMirror destinations
14.5.2 SnapMirror and deduplication
14.6 VSC in an N series MetroCluster environment
14.7 Backup and recovery
14.7.1 Data layout
14.7.2 Backup and recovery requirements
14.7.3 Single wizard for creating backup jobs
14.7.4 Granular restore options
14.7.5 Other features
14.8 Provisioning and Cloning
14.8.1 Features and functions
14.8.2 Provision datastores
14.8.3 Managing deduplication
14.8.4 Cloning virtual machines
14.9 SnapManager for Virtual Infrastructure commands
14.10 Scripting
Appendix A. Hot backup Snapshot script
Appendix B. Sample scripts for VSC
Sample environment variables
Displaying environment variables during the backup phases
SnapVault script for SnapManager for Virtual Infrastructure
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Note: Before using this information and the product it supports, read the information in “Notices” on page xxi.
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