| Home |
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| Frequently Asked Questions |
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| Backup and Replication |
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| Backing Up Non-VSS-Aware Applications |
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| Backing Up Paid (Marketplace) EC2 Instances |
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| Backing Up to Removable Disks in Rotation |
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| Backup of a VM's RAM |
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| Backup of VM Swap Files |
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| Data Transfer Modes |
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| Editing Protect Until Option for Recovery Points |
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| Excluding Files from Backup or Replication |
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| How Amazon EC2 Instance Replication Works |
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| How to Back Up and Recover vCenter VMs Connected to dSwitch |
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| How to Back Up a PostgreSQL Database |
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| How to Stop Backing Up a VM |
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| Keeping Recovery Points |
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| Managing Real-Time Replication components |
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| The Replication Process Slows Down After CBT Reset |
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| VM Cannot Be Selected for Backup or Replication |
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| Backup Repository |
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| Automating Backup Repository Copy |
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| Comparison of Backup Repository Types |
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| Extending Backup Repository on Virtual Appliance |
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| How Backup Repository Encryption Works |
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| How Forever Incremental Backups Are Stored |
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| How Recovery Point Expiration Dates Are Calculated |
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| How to Move Backups to an Incremental-with-Full-Backups Repository |
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| HPE StoreOnce Catalyst Limitation |
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| Importing a Backup Repository in Another Instance of NAKIVO Backup & Replication |
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| Integrating with EMC DD Boost |
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| Integrating with NEC HYDRAstor |
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| Manual Backup Repository Encryption |
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| Maximum Number of Repositories for DC Transporter |
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| Moving a Backup Repository to a New Location |
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| SaaS Backup Repository is Inaccessible After Power Outage or Forced Reboot |
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| Installation and Deployment |
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| Creating and Installing Custom CA-Signed Certificate |
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| Custom CA-Signed Certificate Compatibility |
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| How to Migrate a PostgreSQL Database to a New Version on a NAS Device |
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| How to Migrate System Configuration to New VMware Virtual Appliance |
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| How to Identify the CPU Architecture of a Generic ARM-Based Device |
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| How to Identify the CPU Architecture of an ASUSTOR NAS Processor |
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| How to Identify the CPU Architecture of a QNAP NAS Processor |
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| How to Identify the CPU Architecture of a Synology NAS Processor |
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| Migrating to Newer Version of Virtual Appliance |
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| Migration Using an External PostgreSQL Database |
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| Required API Permissions for Microsoft 365 |
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| Required AWS IAM Permissions for Amazon EC2 |
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| Required AWS IAM Permissions for Amazon S3 and Backblaze |
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| Required AWS Permissions for AWS KMS Key Creation |
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| Required ESXi Permissions |
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| Required VMware vSphere Permissions |
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| Update Failure on Physical Servers Due to SMB Issues |
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| Updating NAKIVO Backup & Replication |
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| Updating Ubuntu OS on the Machine with NAKIVO Backup and Replication |
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| Miscellaneous |
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| Difference Between Source and Target Transporters |
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| Failed to Connect to Active Directory Domain |
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| Free ESXi Cannot Be Discovered |
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| GC Overhead Limit Exceeded |
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| High Availability of NAKIVO Backup and Replication |
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| How Job Merging Works |
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| Invalid AD Group Name Error |
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| IPv6 Support |
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| Log4j2 (CVE-2021-44228) Vulnerability |
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| NAKIVO API Best Practices |
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| Operational Limits for NAKIVO Backup and Replication |
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| PostgreSQL in SaaS Repository |
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| Preferred Prioritized Group Is Not Found |
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| Removing CA-signed Certificate |
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| Retention Planning for Wasabi |
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| Security Considerations |
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| Setting Up a Dedicated Backup Network |
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| Spring4Shell (CVE-2022-22965) Vulnerability |
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| SSH Requirements for NAKIVO Backup and Replication |
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| Starting and Stopping Product Services |
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| Transporter Connection Issues |
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| Transporter Deployment for SAN Access |
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| Using Dedicated Backup or Replication Network |
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| White Screen in Browser |
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| Performance |
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| Improving Backup Performance over WAN |
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| Long Initial (Full) VM Backup |
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| Network Acceleration is not Working |
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| VM Backup is Slow under Load |
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| Why Incremental Backups May Run Like Full Backups |
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| Recovery |
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| How to Restore a VMware vCenter with NAKIVO Backup and Replication |
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| How to Restrict Users From Viewing M365 Emails Before Recovery |
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| Protecting Recovered VMs |
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| Recommendations on Recovering Domain Controller |
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| Recovering with VM Replicas |
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| Screenshot Verification Fails During Flash VM Boot Job |
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| Troubleshooting Flash VM Boot |
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| Why Chain of Recovery Points is Recovered Instead of One Selected Incremental Point |
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| Supported Platforms |
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| Cannot add a Hyper-V Server if User Is not Built-In Administrator |
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| Free ESXi Backup Limitations |
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| How to Add Google Cloud Storage |
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| How to Check Drive and Datastore Sector Size |
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| How to Back Up and Recover Proxmox VM Data Using Agent-Based Approach |
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| How to Find the Managed Object ID (MOID) of a VMware vSphere Cluster |
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| VMware Version and Platform Compatibility |
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| PostgreSQL Version and Platform Compatibility |
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| Required APIs For the Generic S3-Compatible Storage Feature |
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| Transferring Licenses Between ESXi Hosts |
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| Tape |
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| Long Preparation During Tape Recovery |
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| Tape Cartridge Disappears From Tapes View When Moving to Mail Slot on Amazon VTL |
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| Tape Cartridge Error After Server Reboot |
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| Tape Cartridge Has no Barcode and UUID |
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| Using Cartridges Without Barcodes to Read or Write Data |
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| Using One Tape Device by Multiple Directors |
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| VTL Discovery Fails if Drives are Mounted as SCSI Targets in Nonconsecutive Order |
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| Writing to Multiple Tape Drives |
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| Application Awareness Issues |
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| Application-Aware Mode for Linux VMs |
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| Application-Aware Mode Requirements for Hyper-V |
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| Failed to Create Quiesced Snapshot of VM |
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| Quiesced Checkpoint of a Hyper-V VM Cannot Be Created |
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| Quiesced Snapshot of Instance Cannot Be Created |
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| Quiesced Snapshot of Physical Machine Cannot Be Created |
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| Taking Quiesced Snapshot of Windows Server 2019 VM Fails |
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| Volume Shadow Copy Service Error on Nutanix |
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| Backup and Replication Issues |
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| Amazon Cross-Account Replication for Marketplace VM Fails with Amazon Generic Error |
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| Backup Copy Fails on Proxmox VM |
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| Backup Fails Due to Microsoft Graph API Restrictions |
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| Backup Job Delays Due to Microsoft 365 API Throttling |
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| Backup Job Stuck in Starting State |
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| Backing Up to Linux Server |
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| Backup job Run Failed for Proxmox VM and Proxmox Template |
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| Backup of 4K Native Disks Fails |
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| Backup for Group Mailbox Subfolders |
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| Cannot Create a VM Backup Snapshot |
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| Corruption Of Recovery Points in Microsoft Azure |
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| Data Size Mismatch |
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| Disk Backup Error |
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| Disk-Level Job Failure |
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| EBS Volumes Cannot Not Be Attached to Transporter |
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| Enabling SSH on ESXi Hosts |
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| Enabling SSH on Proxmox VE Hosts |
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| File Share Backup Job Does Not Back Up a Number of Files |
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| Harden Transporter Alarms |
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| Hot Add Mode Working Incorrectly With Multiple VMs |
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| Instance-Level Job Failure |
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| Job With Existing Replica Fails if Not Original VM Is Mapped |
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| Microsoft 365 Backup Job Failure |
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| Microsoft 365 Backup Job is Locked |
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| Microsoft 365 Backup/Recovery Requires Direct Internet Access |
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| Microsoft 365 Exchange Backup Failure |
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| NFS File Share Location Cannot Be Reached by the Transporter |
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| NFS Share Backup Transfers No Data |
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| Physical Machine Job Fails Due to Unsupported Disks |
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| Physical Machine Backup: Unsupported Volumes |
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| Proxmox Backup Failure |
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| Proxmox Backup Failure Caused by Zeroinit Filter |
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| Proxmox Backup Warns about SQL Log Truncation Permissions |
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| Replication or Recovery Job Cannot be Started |
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| Replica VM Cannot Be Powered On |
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| Slow Speed When Copying a Backup to Tape |
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| Snapshot Invalidated by the Source System |
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| Temporary Checkpoint Cannot Be Created for Hyper-V 2016 and 2019 |
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| Temporary Disks Fail to Attach During the Proxmox Backup |
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| The Attached Disks Are Not Detached after the RTR Job Run |
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| Troubleshooting Stuck Jobs |
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| VM-Level Job Failure |
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| VM Verification Fails for Jobs with Direct Connect |
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| VMware vSphere Backup Job: Storage API Error |
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| VMware vSphere/Hyper-V Backup Job Failure: Infrastructure Has Changed |
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| Volume-Level Job Failure |
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| Backup Repository Issues |
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| Problem with the Backup Infrastructure |
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| Backup Repository - Insufficient Permissions |
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| Cannot attach an Encrypted Repository |
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| Cannot Create a Backup Repository on a CIFS Share |
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| Cannot Create a Backup Repository on a Network Drive |
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| Cannot Create a Backup Repository on an NFS Share |
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| Corrupted Backup Object Disk Issue |
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| Corrupted Backup Repository |
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| Customizing File Size Limitation of the VA Backup Repository |
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| Dealing with Corrupted Recovery Points |
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| Encryption for Repositories in CentOS |
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| FreeNAS: Backup Repository Creation Fails |
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| Increasing the Repository Limit on the EXT4 Filesystem |
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| Repository Space Reclaim Was Interrupted |
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| Repository can’t be attached |
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| Repository Verification Takes Too Long |
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| Space Reclaim Doesn't Stop via UI |
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| Target Object Already Exists |
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| Troubleshooting S3-Compatible Repositories |
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| Change Tracking Issues |
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| CBT Reset Failure |
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| Change Tracking Data Was Not Provided |
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| Enabling CBT for a VM |
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| ESXi Host Did Not Provide Valid CBT Data |
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| Proxmox VE VM Did Not Provide Valid CBT Data |
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| VMware CBT, Hyper-V RCT, or Nutanix CRT Is Not Supported |
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| Unknown Change Tracking Version |
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| Director and Transporter Issues |
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| Cannot Access NAKIVO Director After VM Restart |
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| Cannot Access Transporter |
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| Cannot Add Existing EC2 Transporter |
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| Cannot Add Physical Machine via Direct Connect |
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| Cannot Discover Hyper-V Cluster with Direct Connect Transporter |
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| Cannot Open Journal Disk During RTR Failover |
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| Checking Transporter Connection |
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| Checking Transporter Performance |
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| Checking Transporter Permissions |
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| Communication Protocol Error (ActionException) |
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| Director Installed on Windows Server Fails to Start |
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| Director Machine Failure |
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| External Database Migration Issue: Permission Denied |
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| How to Allocate More RAM to NAKIVO Director Service |
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| How to Allocate More RAM to NAKIVO Transporter Service |
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| How to Update I/O Filter Daemon |
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| Issues During I/O Filter Installation and Uninstallation |
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| Jobs Fail or Alarms Missing Due to Task Pool Limit |
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| Missing Transporter Logs |
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| No Transporters in AWS Account |
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| Proxy Transporter Connection Problem (ActionException) |
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| Transporter Connection Lost |
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| RTR Job Failure: Maximum Transporter Capacity Reached |
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| Transporter Internal Error |
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| Transporter Is Not Available or Reachable |
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| Transporter Machine Fails to Open Source VM Disk |
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| Transporter Machine Failure |
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| Transporter Memory Allocation Error |
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| Transporter Memory Issue During Microsoft 365 Backup |
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| Troubleshooting Transporter Read/Write Issues |
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| Troubleshooting Director Issues |
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| Updating Manually Installed Transporters |
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| Updating Master Password on Transporter |
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| Backup Job Fails on Older CPUs |
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| Installation and Deployment Issues |
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| Add-On Package Cannot Be Installed on Synology NAS |
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| Authentication Problem When Connecting to PostgreSQL |
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| Cannot Add Domain Controller as Physical Machine |
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| Cannot Deploy Transporter When Director Is Not Connected to the Internet |
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| Database Key Mismatch When Connecting to PostgreSQL |
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| Email OAuth 2.0 Configuration on Headless Installations |
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| How to Upgrade NAKIVO Backup & Replication from v9 to v11 |
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| Importing System Configuration Using External Database Fails |
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| Installing the Self-Signed Certificate Fails |
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| Launching NAKIVO Backup And Replication on DSM 7 After Upgrading From DSM 6 |
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| Physical Machine Agent Installation Failed |
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| Product Cannot Be Updated on 32-bit OS |
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| Required Antivirus Exclusions For Director And Transporter |
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| Skip Unused Blocks Issue in v9.4 |
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| SSL Certificate Validation During Installation on FreeNAS |
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| Transporter Does Not Support VMware vSphere |
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| Transporter Installation on Hyper-V Host Failed |
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| Troubleshooting External Database Connection Issues |
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| Troubleshooting Installation |
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| Unable to Add Additional External Databases |
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| Updating Manually on Synology NAS |
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| Updating Physical Transporter Manually |
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| Upgrading Old Version of PostgreSQL on NAS Device |
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| VM Agent Installation Error |
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| Recovery Issues |
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| Adding Microsoft 365 Public Folder Permissions |
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| Application Database Was Not Found |
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| AWS Instances on Windows Recovered with Platform Property Set to Linux |
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| Cannot Boot Up VM After Recovery Job Run |
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| Cannot Load Recovery Point |
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| Cannot Migrate Flash Booted VM on Hyper-V 2019 |
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| Cannot Open Database During Microsoft Exchange Mailbox Recovery |
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| Cannot Recover a VM due to vCenter Server Failure |
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| Creation of Bootable Media on Windows OS Machine Fails |
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| Error When Recovering M365 Items |
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| Failure to Verify VMs With EFI Firmware to Windows Server 2012 R2 |
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| File and Object Recovery from FreeNAS Does Not Work |
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| File and Object Recovery Issues With Linux OS |
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| File and Object Recovery: Windows Server with Deduplication |
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| File-Level Recovery Fails on Windows |
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| File or Object Recovery Blocked by Firewall on Target Server |
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| File Recovery: Cannot Open Disk |
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| File Recovery: Cannot Open Partition |
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| File Recovery: Connection to Recovery Server Refused |
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| File Recovery: Empty Disk |
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| File Recovery Job Fails With Incorrect Credentials Issue |
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| File Recovery: Multipath Issues |
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| File Recovery: SATA HDD's |
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| Flash VM Boot Job Cannot be Started |
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| Flash VM Boot Recovery for VMs With CentOS |
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| FLR Cannot Detect Source VM IP with Duplicate VMs on Hyper-V |
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| Incorrect Credentials for EC2 Recovery Server |
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| Limitation on the Chain of Incremental Recovery Points |
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| LVMs in RHEL 9 Not Found in File Recovery Wizard |
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| Mailbox Processing Failed Because Autodiscover Service Could Not Be Located |
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| Malware: Scanning Recovered VM Before Deploying to Production |
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| Message Exceeds Maximum Supported Size |
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| Microsoft 365 EWS Error Quota Exceeded |
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| Recovery of the VM Fails Due to Long Path |
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| Required Permissions for Linux Recovery Server |
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| ZIP Download Failures When Access to Files Is Denied |
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| Security Advisory |
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| CVE-2024-48248 |
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| CVE-2025-32406 |
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| Supported Platforms Issues |
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| Backup Job Fails When CIFS Repository Connection Is Lost |
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| Cannot Add Generic S3-Compatible Storage Account to Inventory |
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| Cannot Add Physical Machine to Inventory |
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| Cannot Add Physical Machine of Unsupported Version |
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| Cannot Add Windows 10 to Inventory |
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| Failed Signature Check When Adding S3-Compatible Storage to the Inventory |
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| File Share Backup Skips Items with FI Repository |
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| Hyper-V Failover Cluster Node Issues After Update |
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| CIFS File Share is Inaccessible |
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| Issues Adding Physical Machines |
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| Issues Installing Different Product Versions on NETGEAR ReadyNAS |
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| Issues with Linux Integration Services (LIS) for Ubuntu 12.04 Server (x64) and SLES 11 SP3/SP4 (x64) |
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| Limitations of Encrypted VMware VM Support |
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| VMware vSphere 8 Unsupported Properties in Compatibility Mode |
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| VMware vSphere 9 Unsupported Properties in Compatibility Mode |
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| Tape Issues |
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| Backup Job Fails When Reusing Tape Cartridge |
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| Backup to Tape Failure |
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| Cannot Read or Write Tape Cartridge |
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| Cannot Retrieve HPE StoreOnce Tape Capacity |
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| Data on Tape Cannot Be Discovered |
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| Tape Cartridge Capacity is Displayed Incorrectly |
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| Tape Cartridge Internal Error |
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| Transport Mode Issues |
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| Hot Add Mode Cannot be Used |
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| Hot Add Mode Requirements and Troubleshooting |
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| SAN Mode Does Not Work on Ubuntu |
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| SAN Transport Mode Cannot Be Started |
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| VMware VM Backup Error in SAN Mode |
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| Web UI Issues |
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| Cannot Access the Web UI |
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| Cannot Open the Web UI |
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| Long Response Time of Web UI |
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| VM Size in Web UI Is Incorrect |
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| Best Practices |
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| Deduplication and Compression Considerations |
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| Defining Backup Repository Size |
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