Veritas NetBackup™ AdvancedDisk Storage Solutions Guide

Last Published:
Product(s): NetBackup (8.2, 8.1.1, 8.1)
  1. Introducing AdvancedDisk
    1.  
      About the AdvancedDisk storage option
  2. Licensing AdvancedDisk
    1.  
      About the AdvancedDisk license
    2.  
      Licensing AdvancedDisk
  3. Configuring AdvancedDisk
    1.  
      Configuring the AdvancedDisk option
    2.  
      About AdvancedDisk file system requirements
    3.  
      Configuring credentials for CIFS storage and disk storage units
    4.  
      About AdvancedDisk storage servers
    5.  
      About AdvancedDisk data movers
    6.  
      About AdvancedDisk preferred or required read servers
    7.  
      About data encryption for AdvancedDisk storage
    8.  
      About key management for encryption of NetBackup AdvancedDisk storage
    9. Configuring key management for NetBackup AdvancedDisk storage encryption
      1.  
        Setting up the KMS database for NetBackup AdvancedDisk storage encryption
      2.  
        Creating a KMS key group for NetBackup AdvancedDisk storage encryption
      3.  
        Creating a KMS key for NetBackup AdvancedDisk storage encryption
      4.  
        Saving a record of the KMS key names for NetBackup AdvancedDisk storage encryption
    10. Configuring an AdvancedDisk storage server
      1.  
        AdvancedDisk storage server configuration options
    11.  
      About AdvancedDisk disk pools
    12.  
      Configuring a CIFS disk volume for AdvancedDisk encryption
    13. Configuring an AdvancedDisk disk pool
      1.  
        NetBackup nbdevconfig command options for AdvancedDisk disk pools
      2.  
        AdvancedDisk disk pool properties
    14. Configuring an AdvancedDisk storage unit
      1.  
        AdvancedDisk storage unit properties
      2. About AdvancedDisk storage unit recommendations
        1.  
          About configuring a favorable client-to-server ratio
        2.  
          About throttling traffic to the media servers
    15.  
      About storage lifecycle policies
    16. Creating a storage lifecycle policy
      1.  
        Storage Lifecycle Policy dialog box settings
    17.  
      Creating a backup policy
    18.  
      Resilient Network properties
    19.  
      Specifying resilient connections
  4. Managing AdvancedDisk
    1. Managing AdvancedDisk storage servers
      1.  
        Viewing AdvancedDisk storage servers
      2.  
        Determining AdvancedDisk storage server state
      3.  
        Viewing AdvancedDisk storage server attributes
      4.  
        Removing AdvancedDisk storage server attributes
      5.  
        Removing an AdvancedDisk storage server from disk pool access
      6.  
        Deleting an AdvancedDisk storage server
    2. Managing AdvancedDisk disk pools
      1.  
        Viewing AdvancedDisk disk pools
      2.  
        About changing the AdvancedDisk disk pool size
      3.  
        Adding volumes to an AdvancedDisk disk pool
      4.  
        Changing AdvancedDisk disk pool properties
      5.  
        Determining AdvancedDisk disk pool state
      6.  
        Changing AdvancedDisk disk pool state
      7.  
        Determining AdvancedDisk disk volume state
      8.  
        Changing AdvancedDisk disk volume state
      9.  
        Merging AdvancedDisk disk pools
      10.  
        Removing a volume from an AdvancedDisk disk pool
      11.  
        Inventorying a NetBackup disk pool
      12.  
        Deleting an AdvancedDisk disk pool
    3.  
      About monitoring AdvancedDisk storage capacity and usage
    4.  
      Monitoring NetBackup disk activity
    5.  
      Viewing AdvancedDisk disk reports
    6. Displaying detailed AdvancedDisk storage usage information
      1.  
        NetBackup disk volume capacity and usage reference
    7.  
      Displaying KMS key information for AdvancedDisk encryption
  5. Toubleshooting AdvancedDisk
    1. About unified logging
      1.  
        About using the vxlogview command to view unified logs
      2.  
        Examples of using vxlogview to view unified logs
    2. About legacy logging
      1.  
        Creating NetBackup log file directories for AdvancedDisk
    3.  
      NetBackup AdvancedDisk log files
    4.  
      AdvancedDisk troubleshooting
    5.  
      Resolving an incorrect storage type problem

AdvancedDisk disk pool properties

Table: AdvancedDisk disk pool properties describes the disk pool properties.

Table: AdvancedDisk disk pool properties

Property

Description

Name

The disk pool name.

Storage server

The storage server or storage servers.

All NetBackup media servers that have a mount on the storage are listed. They share the storage for read and write purposes.

Disk volumes

The disk volumes that comprise the disk pool.

Total size

The total amount of space available in the disk pool.

Total raw size

The total raw, unformatted size of the storage in the disk pool.

Comment

A comment that is associated with the disk pool.

High water mark

The High water mark setting is a threshold that triggers the following actions:

  • When an individual volume in the disk pool reaches the High water mark, NetBackup considers the volume full. NetBackup chooses a different volume in the disk pool to write backup images to.

  • When all volumes in the disk pool reach the High water mark, the disk pool is considered full. NetBackup fails any backup jobs that are assigned to a storage unit in which the disk pool is full. NetBackup also does not assign new jobs to a storage unit in which the disk pool is full.

  • NetBackup begins image cleanup when a volume reaches the High water mark; image cleanup expires the images that are no longer valid. For a disk pool that is full, NetBackup again assigns jobs to the storage unit when image cleanup reduces any disk volume's capacity to less than the High water mark.

    If the storage unit for the disk pool is in a capacity-managed storage lifecycle policy, other factors affect image cleanup.

The default is 98%.

Low water mark

The Low water mark is a threshold at which NetBackup stops image cleanup.

The Low water mark setting cannot be greater than or equal to the High water mark setting.

The default is 80%.

Limit I/O streams

Select this option to limit the number of read and write streams (that is, jobs) for each volume in the disk pool. A job may read backup images or write backup images. By default, there is no limit.

When the limit is reached, NetBackup chooses another volume, if available. If not available, NetBackup queues jobs until a volume is available.

Too many jobs that read and write data may degrade disk performance because of disk thrashing. (Disk thrashing is when the read and write heads move between the cylinders excessively as they seek the data for competing jobs.)

Fewer streams may improve throughput, which may increase the number of jobs that complete in a specific time period.

A starting point is to divide the Maximum concurrent jobs of all of the storage units by the number of volumes in the disk pool.

per volume

Select or enter the number of read and write streams to allow per volume.

Many factors affect the optimal number of streams. Factors include but are not limited to disk speed, CPU speed, and the amount of memory.