Veritas NetBackup™ Appliance Administrator's Guide
- Overview
- About accessing the NetBackup Appliance Web Console
- About the NetBackup Appliance Shell Menu
- About appliance console components
- Monitoring the NetBackup appliance
- About hardware monitoring and alerts
- About Symantec Data Center Security on the NetBackup appliance
- Managing a NetBackup appliance from the NetBackup Appliance Web Console
- About storage configuration
- About Copilot functionality and Share management
- About viewing storage space information using the Show command
- About appliance supported tape devices
- About configuring Host parameters for your appliance
- Manage > Appliance Restore
- Manage > License
- About the Migration Utility
- Software release updates for NetBackup Appliances
- About installing an EEB
- About installing NetBackup Administration Console and client software
- Manage > Additional Servers
- Manage > High Availability
- Managing NetBackup appliance using the NetBackup Appliance Shell Menu
- About OpenStorage plugin installation
- About mounting a remote NFS
- About running NetBackup commands from the appliance
- About NetBackup administrator capabilities
- Creating a NetBackup touch file from the NetBackup appliance
- Creating NetBackup administrator user accounts
- About NetBackup administrator capabilities
- About Auto Image Replication between appliances
- About forwarding logs to an external server
- About high availability configuration
- About the non-certified disk erasure
- Understanding the NetBackup appliance settings
- Settings > Notifications
- Settings > Network
- Settings > Network > Network Settings
- Settings > Network > Fibre Transport
- Settings > Network > Host
- Settings > Authentication
- About configuring user authentication
- About authorizing NetBackup appliance users
- Settings > Authentication > LDAP
- Settings > Authentication > Active Directory
- Settings > Authentication > Kerberos-NIS
- Settings > Authentication > User Management
- Troubleshooting
- Deduplication pool catalog backup and recovery
About the non-certified disk erasure
The non-certified disk erasure enables you to erase any storage disks on a NetBackup appliance. By erasing a storage disk, the data that was stored on the disk is destroyed. Once a disk is running a disk erasure operation, it is blocked from any other storage management operations.
You can no longer backup to or restore from the partitions after you start erasing disks that contain those partitions. It is recommended that you complete or cancel all jobs on that type of partition that is to be erased.
Note:
The erased data cannot be recovered. Make sure that the data has been backed up and verified, or that the data is no longer needed.
The non-certified disk erasure is only supported from the NetBackup Appliance Shell Menu. The following command operations are available from the Main > Manage > Storage view:
Erase Configure
Configures the non-certified disk erasure to erase one or more disks at a time. A wizard guides you through the configuration. Disk erasure starts immediately after the configuration completes. The time duration of erasure is determined by the size of the disks, the pass algorithm used, and the workload on the appliance.
Erase Show
Shows the erasure operations in progress and the erasure status for all the storage disks on the appliance.
Erase Abort
Aborts a running erasure operation.
The non-certified disk erasure wizard prompts a list of storage disks to let you select the disks to erase. The wizard lists all of the storage disks on the appliance with the following exceptions:
Disks that are in the erasure process
You can erase a disk again after it has been erased.
Note:
The disk with the Configuration partition can only be erased for one time because after the Configuration partition has been destroyed, the disk erasure feature is no longer available.
Disks that are allocated to the Optimized Share Reserve
You need to delete the Optimized Share Reserve before you can erase the disk.
On a NetBackup appliance, a storage disk can contain one storage partition or many different partitions. The Configuration, NetBackup Catalog, MSDP Catalog are metadata partitions and cannot be erased prematurely.
Before your selection, note the following:
The disk with the Configuration partition can only be erased when the other disks no longer contain partitions and the Optimized Share Reserve no longer exists.
Caution:
You can no longer configure the non-certified disk erasure after the erasure starts on the disk with the Configuration partition.
A disk with the MSDP Catalog partition can only be erased when the MSDP partitions no longer exist, except when the last MSDP partition resides on the same disk as the Configuration partition.
For example, you can consider the following best practice to erase disks:
Delete the Optimized Share Reserve if any exists, and then erase the disks that were allocated to the Optimized Share Reserve.
Erase the disks with AdvancedDisk and MSDP partitions
Erase the disks with MSDP Catalog and NetBackup Catalog partitions
Erase the disk with the Configuration partition
To minimize the chance that the erased data is recoverable, the non-certified disk erasure provides options for the pass algorithm that is used to overwrite all of the data on a disk. When you are prompted, specify one of the following pass algorithms for the current configuration:
One-pass algorithm
Overwrites the disk with a randomly-selected digital pattern. This option takes the least amount of time.
Three-pass algorithm
Overwrites the disk a total of three times. The first pass, it uses a pre-selected digital pattern. The second pass uses the binary complement of the previous patter, and the last pass uses a randomly-selected digital pattern.
Seven-pass algorithm
Overwrites the disk a total of seven times. In each pass, the data is overwritten with a randomly-selected digital pattern or with the binary complement of the previous pattern.
You can only use one of the three pass algorithms each time you configure the disk erasure. However, you can configure the non-certified disk erasure multiple times. For example, you need to configure the disk erasure two times if you want to erase some disks with the one-pass algorithm and the other with the seven-pass algorithm. If you want to configure the non-certified disk erasure again, you do not need to wait for the current erasure operations to complete.
After you have erased all of the storage disks on the appliance, use the IPMI console to power off the appliance.
Note:
After a disk erasure process completes, the erased disks enter into an unusable state. If you want to restore the disks to a usable state, perform a factory reset on the appliance.
See Configuring the non-certified disk erasure.