NetBackup™ Snapshot Client Administrator's Guide
- Introduction
- Installation
- Policy configuration
- Selecting the snapshot method
- About using alternate client backup
- Configuring alternate client backup
- Policy configuration tips
- About disabling snapshots
- NAS snapshot configuration
- Dynamic data streaming for D-NAS workloads
- Setting up a NAS-Data-Protection policy
- FlashBackup configuration
- Instant Recovery configuration
- About Instant Recovery
- About sizing the cache for Instant Recovery copy-on-write snapshots
- About storage lifecycle policies for snapshots
- Configuration of software-based snapshot methods
- Support for Cluster Volume Manager Environments (CVM)
- Configuration of snapshot methods for disk arrays
- OS-specific configuration tasks
- About IBM DS6000 and DS8000 arrays
- Configuring NetBackup to access the IBM DS6000 or DS8000 array
- About IBM DS4000 array
- About Hitachi SMS/WMS/AMS, USP/NSC, USP-V/VM
- Hitachi array software requirements
- About HP-XP arrays
- About array troubleshooting
- Notes on Media Server and Third-Party Copy methods
- Backup and restore procedures
- Snapshot management
- Troubleshooting
- Logging directories for UNIX platforms
- Logging folders for Windows platforms
- FlashBackup and status code 13
- Appendix A. Managing nbu_snap (Solaris)
- Appendix B. Overview of snapshot operations
About dynamic multi-pathing
In a SAN fabric, it is advantageous (for redundancy reasons) for multiple pathways to exist from a host computer to a device on a disk array. The purpose of dynamic multi-pathing software is the following:
Manage these pathways so that only one is in use at a time
Switch to another pathway if the one in use fails
supports EMC PowerPath dynamic multi-pathing software on Solaris and Windows. Due to limitations that prevent the dynamic importing of devices, PowerPath is not supported on Linux.
For certain arrays, works in a multipath configuration with or without PowerPath installed, because all visible device paths provide equal access to the array device. EMC Symmetrix and HP-EVA arrays behave in this manner. For other arrays, if multiple device paths exist to an array device, can use only one of those paths. In this case, PowerPath must be used to ensure that always uses the active device path. EMC CLARiiON behaves in this manner. If PowerPath is not in use and the disk array is EMC CLARiiON, the Fibre Channel switch must be configured so that only one path is zoned to the NetBackup client.
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