Veritas NetBackup™ Flex Scale Administrator's Guide
- Product overview
- Viewing information about the NetBackup Flex Scale cluster environment
- NetBackup Flex Scale infrastructure management
- User management
- About Universal Shares
- Node and disk management
- License management
- User management
- NetBackup Flex Scale network management
- Bonding operations
- Data network configurations
- NetBackup Flex Scale infrastructure monitoring
- Resiliency in NetBackup Flex Scale
- EMS server configuration
- Site-based disaster recovery in NetBackup Flex Scale
- Performing disaster recovery using RESTful APIs
- NetBackup Flex Scale security
- Troubleshooting
- Collecting logs for cluster nodes
- Troubleshooting NetBackup Flex Scale issues
- Appendix A. Configuring NetBackup optimized duplication
- Appendix B. Disaster recovery terminologies
- Appendix C. Configuring Auto Image Replication
About Universal Shares
The Universal Share feature provides data ingest into a NetBackup Flex Scale appliance using an NFS or a CIFS (SMB) share. Space efficiency is achieved by storing this data directly into an existing NetBackup-based deduplication pool.
You can configure and manage the Universal Share from NetBackup. For more information, see the chapter "Configuring and using universal shares" in the NetBackup Deduplication Guide.
Advantages of Universal Shares
The following information provides a brief description of the advantages for using Universal Shares:
As a NAS-based storage target
Unlike traditional NAS-based storage targets, Universal Shares offer all of the data protection and management capabilities that are provided by NetBackup.
As a DB dump location
Universal Shares offer a space saving (deduplicated) dump location, along with direct integration with NetBackup technologies including data retention, replication, and direct integration with cloud technologies.
Financial and time savings
Universal Shares eliminate the need to purchase and maintain third-party intermediary storage, which typically doubles the required I/O throughput since the data must be moved twice. Universal Shares also cut in half the time it takes to protect valuable application or DB data.
Protection Points
The Universal Share Protection Point offers a fast point in time copy of all data that exists in the share. This copy of the data can be retained like any other data that is protected within NetBackup. All advanced NetBackup data management facilities such as Auto Image Replication, Storage Lifecycle Policies, Optimized Duplication, cloud, and tape are all available with any data in the Universal Share.
Copy Data Management (CDM)
The Universal Share Protection Point also offers powerful CDM tools. A read/write copy of any Protection Point can be "provisioned" or made available through a NAS (CIFS/NFS) based share. A provisioned copy of any Protection Point can be used for common CPD activities, including instant recovery or access of data in the provisioned Protection Point. For example, a DB that has been previously dumped to the Universal Share can be run directly from the provisioned Protection Point.
Backup without client software
Client software is not required for Universal Share backups. Universal Shares work with any POSIX-compliant operating system that supports NFS or CIFS.
How it works
The Universal Share feature provides a network-attached storage (NAS) option for NetBackup Flex Scale appliances. Traditional NAS offerings store data in conventional, non-deduplicated disk locations. Data in a Universal Share is placed on highly redundant storage in a space efficient, deduplicated state. The deduplication technology that is used for this repository is the same MSDP location used by standard client-based backups.
Any data that is stored in a Universal Share is automatically placed in the MSDP, where it is deduplicated automatically. This data is then deduplicated against all other data that was previously ingested into the media server's MSDP location. Since a typical MSDP location stores data across a broad scope of data types, the Universal Share offers significant deduplication efficiency. The Protection Point feature lets you create a point in time copy of the data that exists in the specified Universal Share. Once a Protection Point is created, NetBackup automatically catalogs the data in that point and manages it like any other data that is ingested into NetBackup. Since the Protection Point only catalogs the Universal Share data that already resides in the MSDP, no data movement occurs. Therefore, the process of creating a Protection Point can be extremely fast.
Limitations:
A Universal Share is presented through a single MSDP engine, and its size is limited by the capacity of the single node. If the Universal Share quota is set, its size is limited by its quota and cannot exceed the capacity of a single node.
The maximum number of Universal Shares that can be created on an MSDP engine is limited, which is specified by the MaxAllowedLivemounts parameter in the
spws.cfg
file and the default value of this parameter in NetBackup Flex Scale is 100.
Any data that is initially ingested into a Universal Share resides in the MSDP located on the appliance-based media server that hosts the Universal Share. This data is not referenced in the NetBackup Catalog and no retention enforcement is enabled. Therefore, the data that resides in the Universal Share is not searchable and cannot be restored using NetBackup. Control of the data in the share is managed only by the host where that share is mounted.
A Protection Point is a point in time copy of the data that exists in a Universal Share. Creation and management of a Protection Point is accomplished through a NetBackup policy, which defines all scheduling and retention of the Protection Point. The Protection Point uses the "Universal-Share" policy type. Once a Protection Point for the data in the Universal Share is created, that point in time copy of the Universal Share data can be managed like any other protected data in NetBackup. Protection Point data can be replicated to other NetBackup Domains or migrated to other storage types like tape or cloud, using Storage Lifecycle Policies. Each Protection Point copy is referenced to the name of the associated Universal Share.
Restoring data from a Protection Point is exactly the same as restoring data from a standard client backup. The standard Backup Archive and Restore interface is used. The client name that is referenced for the restore is the Universal Share name that was used when creating the Universal-share policy type. Alternate client restores are fully supported. Make sure that NetBackup Client is installed on the destination client before restore. However, to restore to the system where the Universal Share was originally mounted, NetBackup Client software must be installed on that system. This is necessary since a NetBackup Client is not required to initially place data into the Universal Share.