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Learn how to contributeTroubleshooting transition issues when using SnapMirror
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Troubleshooting information helps you to identify and resolve issues that occur when transitioning 7-Mode data using SnapMirror commands.
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PDF of this doc site
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Copy-based transition
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Copy-free transition
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SAN host transition and remediation
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- 7-Mode Transition
- Release Notes
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Command map for 7-Mode administrators
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7-Mode Transition Tool installation and administration
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Transition to clustered ONTAP by using the 7-Mode Transition Tool
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Installing or uninstalling the 7-Mode Transition Tool on a Windows system
- System requirements for installing the 7-Mode Transition Tool on Windows systems
- Installing the 7-Mode Transition Tool on a Windows system
- Enabling login for users not part of the Administrator group
- Logging in to the 7-Mode Transition Tool
- Uninstalling the 7-Mode Transition Tool on a Windows system
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Installing or uninstalling the 7-Mode Transition Tool on Linux (Copy-based transition only)
- Modifying the configuration options of the 7-Mode Transition Tool
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Troubleshooting issues
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Copy-based transition
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Transition overview
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Collecting and assessing the inventory information
- Copy-based transition workflow
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Data and configuration migration process
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Preparing for copy-based transition
- Requirements for copy-based transition
- Port requirements for communicating with the 7-Mode Transition Tool
- Restrictions for transition
- Preparing the 7-Mode system for transition
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Preparing the network for transition
- Preparing the cluster for transition
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Preparing 7-Mode aggregates and volumes for transition
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Support for transitioning SnapLock volumes
- Considerations for transitioning of SnapLock Enterprise volumes
- Considerations for transitioning of SnapLock Compliance volumes
- Considerations for transitioning of SnapLock Audit volumes
- Considerations for transitioning of 7-Mode SnapLock options
- Considerations for using Chain of Custody verification for 7-Mode SnapLock volumes
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Preparing to transition name services
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Preparing for NFS transition
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Preparing for SMB/CIFS transition
- Preparing for MetroCluster configuration transition
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Preparing for SAN transition
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Preparing data protection features for transition
- Guidelines for deciding when to perform cutover
- Impact of takeover and giveback on transition
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Migrating data and configuration from 7-Mode volumes
- Transition preparation checklist
- Adding controllers and clusters
- Creating a transition project
- Customizing the transition of 7-Mode configurations
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Running prechecks
- Starting baseline data copy
- Applying 7-Mode configurations
- Configuring zones by using the FC zone plan
- Performing on-demand SnapMirror updates
- Completing a transition project
- Completing the Chain of Custody verification
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Transitioning volumes by using the 7-Mode Transition Tool CLI
- Scenarios for selecting volumes in a project
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Transitioning volumes by using the 7-Mode Transition Tool CLI
- Commands for managing transition
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Performing manual post-transition tasks
- Configuring zones by using the FC zone plan
- Recovering from a failed LUN transition
- Viewing transitioned SAN configurations
- Limitations with 7-Mode Snapshot copies of LUNs managed by SnapDrive and SnapManager after transition
- Configuring cron job schedules on the remote site after transitioning a MetroCluster configuration
- Deleting 7-Mode volume Snapshot copies from transitioned volumes
- Consolidating cron schedules from transitioned volumes
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Managing a transition project
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Troubleshooting issues
- Downloading transition log files
- Log files for the 7-Mode Transition Tool
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Continuing with the transition if ignorable errors occur
- Transitioning a MetroCluster configuration that failed due to switchover or switchback
- Cannot select a secondary volume from the Volume selection pane
- Cannot select a volume for transition if the tool fails to retrieve the volume information
- Cannot proceed from the Volume mapping pane if the selected SVM has no aggregate
- Compression is not enabled after transition from Data ONTAP 7.3.x
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Copy-free transition
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Transition overview
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Collecting and assessing the inventory information
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Copy-free transition workflow
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Preparing for copy-free transition
- Requirements for copy-free transition
- Tools and documentation required for copy-free transition
- Port requirements for communicating with the 7-Mode Transition Tool
- Preparing the 7-Mode HA pair for transition
- Setting up the SP or RLM on the 7-Mode systems for copy-free transition
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Preparing the network for transition
- Preparing the cluster for transition
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Gathering cabling information for transition
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Preparing 7-Mode aggregates and volumes for transition
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Preparing to transition name services
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Preparing for NFS transition
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Preparing for SMB/CIFS transition
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Preparing for SAN transition
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Preparing data protection features for transition
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Transitioning 7-Mode aggregates using copy-free transition
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Planning a copy-free transition project
- Applying SVM configurations
- Verifying that 7-Mode systems are ready for cutover
- Exporting storage configurations and halting 7-Mode systems
- Disconnecting disk shelves from the 7-Mode system and connecting to cluster nodes
- Importing 7-Mode data to ONTAP
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Completing the transition
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Transitioning a SnapMirror relationship
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Troubleshooting transition issues
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Performing a transition rollback to 7-Mode
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Host and Storage Information Collection Guide
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Collecting storage and host inventory information
- ONTAP target releases supported by the 7-Mode Transition Tool
- System requirements for running the Inventory Collect Tool
- Storage, host, and FC switches version requirements for inventory collection
- Preparing the 7-Mode systems and hosts for inventory collection
- Supported configurations for generating an FC zone plan
- Syntax and options
- Collecting inventory and generating inventory report
- Generating the FC zone plan
- Collection and assessment commands
- Where to find information about transition assessment
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7-Mode data transition using SnapMirror
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Transitioning 7-Mode volumes using SnapMirror
- Transitioning a disaster recovery relationship between vFiler units
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Recovering from a disaster at the 7-Mode site during transition
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Troubleshooting transition issues when using SnapMirror
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SAN host transition and remediation
- ONTAP target releases supported by the 7-Mode Transition Tool
- 7-Mode Transition Tool transition phases
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VMware ESXi host remediation
- ESXi versions and features supported for SAN transitions using 7MTT
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Preparing for transition of ESXi hosts
- Testing transitioned LUNs and ESXi host applications before the cutover phase of copy-based transitions
- Downtime at apply configuration (precutover) phase of ESXi host transition
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Post-transition remediation requirements for ESXi hosts
- Preparing for post-transition ESXi host remediation
- Reregistering VMs after transition on non-SAN boot ESXi hosts using vSphere Client
- Reconfiguration of VMware software iSCSI initiator after transition
- Setting up ESXi hosts configured for SAN boot after transition
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Determining whether VMFS volumes need to be remounted after transition
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Reattaching RDM LUNs to VMs
- Post-transition remediation for Linux and Windows guest operating systems
- Recommended settings for ESXi hosts after transition remediation
- Enabling CAW on a datastore using the ESXi CLI
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RHEL host remediation
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Gathering pretransition information from the Inventory Assessment Workbook
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Transitioning RHEL DMMP devices without file systems
- Verifying that RHEL LUNs are ready for transition using the Inventory Assessment Workbook
- Verifying that RHEL 5 LUNs are ready for transition using the CLI
- Verifying that RHEL 6 DDMP devices are ready for transition using CLI
- Testing DMMP devices without file systems on RHEL hosts before the cutover phase of copy-based transitions
- Preparing for cutover when transitioning a Linux host DMMP device without a file system
- Replacing 7-Mode LUN WWIDs on Linux hosts after transition of LUNs
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Transitioning LUNs with mount points using DMMP device names
- Preparing RHEL LUNs with mount points using DMMP device names for transition using the Inventory Assessment Workbook
- Preparing RHEL LUNs with mount points using DMMP alias names for transition using the CLI
- Testing DMMP devices with file systems on RHEL hosts before the cutover phase of copy-based transitions
- Preparing for the cutover phase when transitioning LUNs with mount points using DMMP device names on Linux hosts
- Remounting DMMP devices on Linux hosts after transition
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Transitioning LUNs with mount points using DMMP alias names
- Preparing RHEL LUNs with mount points using DMMP alias names for transition using the CLI
- Testing LUNs with mount points using DMMP alias names on RHEL hosts before the cutover phase of copy-based transitions
- Preparing for the cutover phase when transitioning LUNs with mount points using DMMP device names on Linux hosts
- Remounting LUNs with mount points using DMMP alias names on Linux hosts after transition
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Transitioning Linux host file systems on LVM devices
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Transitioning of SAN boot LUNs
- Types of SAN boot LUNs supported for transition
- Preparing for transition of FC or FCoE SAN boot LUNs on RHEL hosts
- Preparing for transition of iSCSI SAN boot LUNs
- Testing SAN boot LUNs on RHEL hosts before the cutover phase of copy-based transitions
- Preparing for the cutover phase when transitioning SAN boot LUNs
- Discovering SAN boot LUNs after transition
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Windows host remediation
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HP-UX host remediation
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Transitioning HP-UX host LUNs with file systems
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Transitioning HP-UX host SAN boot LUNs with FC/FCoE configurations
- Preparing to transition SAN boot LUNs on HP-UX hosts with FC configurations
- Testing transitioned SAN boot LUNs on HP-UX hosts before the cutover phase of copy-based transitions
- Preparing for the cutover phase when transitioning SAN boot LUNs
- Making a SAN boot LUN the primary boot LUN for HP-UX Emulex HBAs after transition
- Making a SAN boot LUN the primary boot LUN for HP-UX QLogic HBAs after transition
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AIX host remediation
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Transition of SAN boot LUNs on AIX hosts with FC/FCoE configurations
- Preparing to transition SAN boot LUNs on AIX hosts with FC/FCoE configurations
- Testing transitioned SAN boot LUNs on AIX hosts before the cutover phase of copy-based transitions
- Preparing for the cutover phase when transitioning AIX hosts with FC/FCoE configurations.
- Booting from SAN boot LUN on AIX hosts with FC/FCoE configurations after transition
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Transitioning AIX host data LUNs with file systems
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Solaris host remediation
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Transitioning Solaris host data LUNs with ZFS file systems
- Preparing to transition Solaris host data LUNs with ZFS file system
- Testing data LUNs on Solaris hosts with ZFS file system before the cutover phase of copy-based transitions
- Preparing for cutover phase when transitioning Solaris host data LUNs with ZFS file systems
- Mounting Solaris host LUNs with ZFS file systems after transition
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Transitioning Solaris host data LUNs with Sun Volume Manager
- Preparing to transition Solaris host LUNs with Sun Volume Manager
- Testing data LUNs on Solaris hosts with Sun Volume Manager before the cutover phase of copy-based transitions
- Preparing for cutover phase when transitioning Solaris host Sun Volume Manager data LUNs
- Mounting Solaris host LUNs with Solaris Volume Manager after transition
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Rolling back LUNs to 7-Mode after transition
- Legal notices