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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
The team who wrote this book
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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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Prev
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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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Tables
Figures
1-1 N series unified storage 2
1-2 N series portfolio 3
1-3 MetroCluster greater than 500 meters 5
1-4 Key N series software features 6
1-5 Gateway topology 7
1-6 Tiered heterogeneous storage 8
1-7 Shelf topology comparison 9
1-8 N series product portfolio overview 11
2-1 Storage virtualization 15
2-2 Multiprotocol N series 17
2-3 Virtualization stack 17
2-4 Server virtualization 18
2-5 Thin provisioning savings 20
2-6 The environment used to write this book 21
3-1 RAID-DP 24
3-2 Storage protocols used by VMWare and available on N series family 25
3-3 Flexclone cloning and space savings 26
3-4 Mapping file data 27
3-5 Storage Consumption with N series A-SIS 29
4-1 N series MetroCluster protection 35
4-2 VMFS datastore: Fibre Channel (FC), Fibre Channel over Ethernet (FCoE), iSCSI 36
4-3 RDM access of LUNs by guests 38
4-4 NFS accessed datastore 39
4-5 Flexible volumes 40
4-6 Configuring VMware ESX as Round Robin 43
4-7 Managing Fibre Channel Paths 44
4-8 Changing the Preferred path 45
4-9 A redundant network configuration for iSCSI or NFS file systems 47
4-10 Datastore connections with a stacked switch configuration 50
4-11 Datastore connections with a non-stacked switch configuration 51
4-12 VMware ESX Server Switch1 normal operation 52
4-13 VMware ESX Server Switch1 unavailable operation 52
4-14 Storage-side multimode VIFs using LACP across stacked switches 53
4-15 Storage-side single mode VIFs 54
4-16 Storage-side multimode VIFs 55
4-17 FlexShare prioritization 58
4-18 N series software structure 60
5-1 N series Overview authentication window 64
5-2 FilerView main window 64
5-3 Main menu window 65
5-4 Selecting the option to add an aggregate 65
5-5 Aggregate Wizard Welcome window 66
5-6 Naming the aggregate 66
5-7 Specifying the number of disks per RAID 67
5-8 Selecting the type of disk selection (automatic in this example) 67
5-9 Aggregate setup - disk size selection 67
5-10 Selecting the number of disks to use in the aggregate 68
5-11 Committing the aggregate setup 68
5-12 New aggregate 69
5-13 Volume Wizard Welcome panel 69
5-14 Setting the volume type 70
5-15 Defining the volume parameters 70
5-16 Linking the aggregate to the new volume 71
5-17 Specifying the volume size and space for Snapshot 71
5-18 Committing the settings for the volume 71
5-19 New volume 72
5-20 Setting up the LUN to add 73
5-21 New LUN without mapping 73
5-22 Setting up the initiator group 74
5-23 Mapping the LUN: No maps link 75
5-24 Assigning the initiator group to the LUN 75
5-25 Giving the LUN an ID 76
5-26 Viewing the new LUN 76
5-27 Clicking the Zone menu icon 77
5-28 Signing on to access the zoning feature of the SAN switch 77
5-29 Creating a new zone 78
5-30 Naming the new zone 78
5-31 Assigning the WWPNs of the storage system and server HBA to the zone 79
5-32 Adding members to the switch configuration 80
5-33 Enabling the SAN switch configuration 80
5-34 LUN zoning - enable configuration selection 81
5-35 Replacing the SAN switch configuration 81
5-36 LUN zoning - commit SAN zone changes 81
5-37 HBA setup - step 1 82
5-38 Selecting the Configuration Settings option 82
5-39 Selecting the Adapter Settings option 83
5-40 Enabling Host Adapter BIOS 83
5-41 Enabling Selectable Boot 84
5-42 HBA setup 84
5-43 Selecting Start Options 85
5-44 Selecting Startup Sequence Options 85
5-45 Specifying the first and second startup devices 85
5-46 Saving the changes and exiting the Setup Utility 86
5-47 Choosing the ESXi installation mode 86
5-48 ESXi 4.1 Welcome window 87
5-49 License agreement panel 87
5-50 Selecting the disk to install ESXi 4.1 88
5-51 Installer waiting the confirmation to start installation (F11) 88
5-52 Installation completed 89
5-53 Fresh installed ESXi 4.1 89
5-54 Login to the ESXi host 89
5-55 Setting network information on the host 90
5-56 Set the DNS servers and the Hostname 90
5-57 Restarting the management network to apply changes 91
6-1 Running the installer as a different user 94
6-2 Selecting vCenter to be installed 95
6-3 Selecting the database 95
6-4 vCenter account during the installation 96
6-5 Installing vCenter in a different partition than the OS 96
6-6 Creating a stand-alone instance 97
6-7 Creating a Datacenter 98
6-8 Creating a new cluster 98
6-9 Naming the cluster and features available: HA and DRS 99
6-10 Enabling EVC 99
6-11 Adding a host to a cluster 100
6-12 Adding the host name, root user, and its password 100
6-13 Converting a VM to a template 101
6-14 Changing view to VMs and Templates 101
6-15 Viewing VMs and Templates 102
7-1 Identifying WWPN or IQN numbers using the Virtual Infrastructure Client connected to vCenter 104
7-2 A sample datastore 105
7-3 Selecting the Add option 105
7-4 Volume Wizard Welcome panel 106
7-5 Selecting the volume type 106
7-6 Naming the volume parameters 107
7-7 Specifying the flexible volume parameters 107
7-8 Volume level thin provisioning 108
7-9 Enabling thin provisioning on a LUN 109
7-10 Setting up the initiator group 111
7-11 Creating a LUN for the initiator group 112
7-12 Mapping the LUN to an initiator group 112
7-13 Clicking the Add Groups to Map link 113
7-14 Selecting the initiator group 113
7-15 Completing the mapping process 113
7-16 iSCSI - LUN ready for use 114
7-17 Adding a license to N series using telnet 114
7-18 FilerView to add licenses 115
7-19 Logging using the Virtual Infrastructure Client 116
7-20 Adding storage 117
7-21 Add Storage wizard 117
7-22 Selecting a LUN 117
7-23 LUN information 118
7-24 VMFS block size 118
7-25 Review the information before click finish 119
7-26 Datastore information 119
7-27 Adding a new device 121
7-28 Adding a new hard disk 121
7-29 Selecting the disk type 122
7-30 Selecting the LUN 122
7-31 Selecting the datastore to map the LUN 122
7-32 Selecting the compatibility mode 123
7-33 Specifying the advanced options 123
7-34 Summary of settings 123
7-35 RDM hard disk attached 124
7-36 Adding network 124
7-37 Adding a VMkernel port 125
7-38 Creating a new switch and selecting the physical NIC attached to it 125
7-39 Naming the portgroup 126
7-40 IP configuration of VMKernel 126
7-41 The new vSwitch, named vSwitch1, and its VMkernel portgroup 127
7-42 Selecting an iSCSI initiator 127
7-43 Enabling iSCSI Software adapter 128
7-44 An enabled iSCSI adapter, and its IQN 128
7-45 Adding iSCSI targets 129
7-46 Collecting the VM‘s IQN 130
7-47 Adding the storage iSCSI data interface 131
7-48 Connect to the target iSCSI 131
7-49 The allocated LUN shows in Disk Management 132
7-50 Creating a volume structure 133
7-51 Clicking the Add Storage... button 133
7-52 Selecting the storage type 134
7-53 Locating the network file system 134
7-54 Newly mounted NFS volume 135
7-55 Increasing NFS.MaxVolumes 136
7-56 Guest OS partition not aligned with VMFS and array partitions 137
7-57 Using system information to identify the partition starting offset 137
7-58 Booting with the WinPE.iso file 139
7-59 Boot complete and command prompt available 139
7-60 Diskpart commands 140
7-61 Fixed partition alignment 140
7-62 Browse Datastore to upload/download files from your datastore 141
7-63 Select Upload files to transfer data into your datastore 141
7-64 Expanding a LUN 146
7-65 Increasing datastore capacity 147
7-66 Extended LUN 147
7-67 New datastore structure 148
7-68 The new values for the expanded datastore 148
7-69 Growing a virtual disk 149
7-70 System drive attached to another VM in order to be increased a a normal drive 151
8-1 FlexClone 154
8-2 A datastore with six cloned guests 155
8-3 Virtual infrastructure with four quickly deployed, space-efficient datastores 156
8-4 Cloning a virtual machine 156
8-5 Enter a name for the new server 157
8-6 Selecting a host and check if the validation succeeded 157
8-7 Selecting a datastore 158
8-8 Selecting the disk format, as Thin, Thick or the same as the source 158
8-9 Verifying the options to create a new cloned virtual machine 159
8-10 Cloned VM ready to be used 159
8-11 All the virtual machines within the datastore are down 159
8-12 Changing the LUN signature to avoid duplication 160
8-13 New datastore name related to the cloned datastore 160
8-14 Browsing the cloned datastore 161
8-15 Adding a Virtual Machine to inventory 161
8-16 Providing a name to the virtual machine being added 161
8-17 Selecting a cluster 162
8-18 Selecting a specific host 162
8-19 Finished adding guests 162
8-20 Changing server to be the image to DHCP, so clones do not conflict when starting 163
8-21 Taking a Snapshot for the golden image 164
8-22 Manage LUNs pane 165
8-23 LUN Map pane 165
8-24 LUN Map Add Group pane 166
8-25 LUN ID assignment 166
8-26 Mapped LUN of the new host 167
9-1 Taking a snapshot of a virtual machine 171
9-2 VM Snapshot details 172
9-3 Guest snapshot complete 172
9-4 Add Snapshot 172
9-5 Add Snapshot successful 173
9-6 Guest Snapshot Manager 173
9-7 Deleting a guest snapshot 173
9-8 Guest Snapshot deleted 174
9-9 Scheduled Tasks 174
9-10 Scheduling a new task 175
9-11 Snapshot scheduling options 176
9-12 Success creating the schedule 176
10-1 Volume restore 178
10-2 Volume Restore Wizard 178
10-3 Selecting the volume to restore 179
10-4 Selecting the volume snapshot 179
10-5 Committing the volume restore 179
10-6 Completing the volume restore 180
10-7 Creating a FlexClone 180
10-8 FlexClone Wizard 181
10-9 FlexClone settings 181
10-10 Selecting the snapshot for FlexClone 182
10-11 Committing the FlexClone creation 182
10-12 FlexClone creation complete 182
10-13 The cloned LUN 183
10-14 Making the LUN Online 183
10-15 Add Groups to Map 184
10-16 Selecting Initiator Group 184
10-17 LUN ID for the cloned LUN 184
10-18 Cloned LUN configuration completed on N series 185
10-19 The cloned volume shown with the LUN number defined on N series 185
10-20 Changing to Assign a new signature 186
10-21 A new signature is applied to the LUN 186
10-22 The cloned LUN creates a datastore referring the original one 187
10-23 Browsing the datastore from where data is to be copied 187
10-24 Copying the files from the cloned datastore 188
10-25 Pasting the VM files over the original datastore / VM folder 188
10-26 The copy data completion status on Recent Tasks tab 189
10-27 Adding disk to the temporary VM 191
10-28 Adding an existing disk 191
10-29 Browse recovery datastore until finding the .vmdk containing the data wanted 192
10-30 Completion of the adding disk task 192
10-31 The disk from which the data is to be recovered 193
10-32 Mapping the destination drive on the original virtual machine 193
10-33 Removing the disk from the VM 194
10-34 Completion of disk removal 194
10-35 Selecting the volume and taking it offline 195
10-36 Take volume offline 195
10-37 The success message after destroying the volume 196
10-38 Datastore grayed due to LUN unavailability 196
10-39 Grayed datastore not on the list anymore after a rescan 196
11-1 Entering the SnapVault license 198
11-2 SnapVault license installed 198
11-3 Adding a Qtree 199
11-4 Qtree properties 200
11-5 Qtree created 200
11-6 Creating a LUN in the Qtree 201
11-7 LUN moved to a Qtree 202
11-8 Selecting to configure the Snapshot schedule 203
11-9 Disabling the schedule 204
11-10 Snapshot schedule not set 205
11-11 Choosing the CLI option 206
11-12 SnapVault Snapshots in FilerView 209
12-1 MetroCluster configurations 216
12-2 N series Gateway cluster configuration 218
12-3 SnapMirror License installed 219
12-4 SnapMirror menu options 220
12-5 Selecting the option to add SnapMirror 221
12-6 SnapMirror destination 221
12-7 IP address of the remote storage 221
12-8 SnapMirror schedule 222
12-9 SnapMirror implementation summary 222
12-10 SnapMirror added successfully 223
12-11 SnapMirror not initialized 223
12-12 Initializing SnapMirror 224
12-13 Checking the SnapMirror Report 224
12-14 Selecting to manage snapshots 225
12-15 SnapMirror in FilerView 225
12-16 SnapMirror Report 226
12-17 Selecting the volume 226
12-18 Quiescing the volume 227
12-19 Breaking the mirror 227
12-20 Creating a UUID 228
12-21 Guest started successfully 229
12-22 Recovered datastore 233
13-1 A-SIS savings 236
13-2 NFS size on the vCenter management console before deduplication 238
13-3 FCP size on vCenter management console before deduplication 238
13-4 Savings display 241
14-1 Virtual Storage Console 2 244
14-2 Architecture overview 245
14-3 VSC overview 246
14-4 VSC location 247
14-5 Accessing Provisioning and Cloning 248
14-6 VSC possible deployments 249
14-7 Select VSC features 250
14-8 vCenter registration process 250
14-9 VSC registration with vCenter server 251
14-10 Upgrade to VSC 2.1.1 251
14-11 Select VSC upgrades 252
14-12 Adding storage controller access in VSC 253
14-13 Optimize ESX settings 254
14-14 Optimized ESX adapter settings 254
14-15 MetroCluster and VMware vSphere integrated solution 256
14-16 N series registration for backup and restore 257
14-17 Adding a backup 259
14-18 Backup options 260
14-19 Backup scripts 260
14-20 Backup schedule 261
14-21 Backup job credentials 261
14-22 Revise scheduled backup job 262
14-23 Datacenter backup 262
14-24 Datacenter backup options 263
14-25 Datastore backup 263
14-26 Datastore backup options 264
14-27 Restore options 265
14-28 VSC enhanced restore options 265
14-29 Provisioning and Cloning add controller 268
14-30 Provision a datastore 269
14-31 Select storage controller for provisioning 269
14-32 Specify datastore type 270
14-33 New datastore details 270
14-34 Review new datastore settings 270
14-35 Verify NFS exports 271
14-36 Managing deduplication 272
14-37 Manage deduplication features 272
14-38 Select VM for cloning 273
14-39 Select controller for cloning 273
14-40 Select clone target 274
14-41 Clone VM format 274
14-42 Clone VM details 275
14-43 Summary for cloning 275
14-44 Clone results 276
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