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Media Management Configuration: Service Configuration

Use this dialog box to establish advanced media management parameters.

Parameter Description
Allow changes to data path configuration even if jobs are running Definition: Provides you with the ability to change the data path for a storage policy copy while a job is running for that copy.

Default Value: 0

Range: 0 (disabled) or 1 (enabled)

Usage: By default, the value is set to 0. To be able to change the data path, the value must be set to 1.

Allow export request to complete once submitted instead of waiting for all media to be moved to I/E port Definition: Enabling this parameter allows for the export media request to complete even if the media is physically not removed from the IE slot of the library.

Default Value: 0

Range: 0 (disable) 1 (enable)

Usage: By default, when exporting media, if the media are not taken out from the IE port an error message is generated that the Media Manager has timed out. However, if this parameter is enabled the media manager will queue the process and the export job will be in active state till all the media is removed from the IE port.

Allow export request to succeed without waiting for media being removed from library Definition: Returns the command line to the prompt before export operations are complete and the media is removed from the library. The export media operation run from the CommCell Console completes when the exported media is moved to the IE port.

Default Value: 0

Range: 0 (disabled) or 1 (enabled)

Usage: By default, the command line returns to the prompt after the export operations are complete and the media is removed from the library. When this option is set to 1 (enabled) the command line returns to the prompt after an export request command is run.

By default, when the export media operation is run from CommCell Console, the export process completes when the exported media is removed from the IE port. When this option is set to 1 (enabled) the export media operation completes after the exported media is moved to the IE port.

Always enable encryption on new copies Definition: Indicates whether data encryption is enabled by default in the storage policy copies, when a storage policy is created.

Default Value: 0

Range: 0 (No) or 1 (Yes)

Usage: Use this option to automatically enable data encryption on the storage policy copies .

When this option is enabled, software encryption using Blowfish with Key Length 128 will be enabled in the storage policy copes, even if the encryption option is NOT selected explicitly, while creating a new Storage Policy. (If necessary, you can modify the encryption settings from the Storage Policy Copy Properties after the storage policy is created. )

Note: Changes to this setting will affect the storage policies that are created. subsequently. Existing storage policies will not be affected.

See Configuring Data Encryption on a Storage Policy Copy for additional information.

Allow media to be exported based on barcode order Definition: Enables you to export media based on the barcode order.

Default Value: 0

Range: 0 (disabled) or 1 (enabled)

Usage: By default, media is exported based on the media id. When this option is set to 1 (enabled), media is exported based on the barcode order.

Always give preference to Primary copy ahead of other copies during synthetic full Definition: Enables you to give precedence to the primary copy to restore data from a storage policy copy when performing synthetic full backup

Default Value: 0

Range: 0 (disabled) or 1 (enabled)

Usage: By default, synthetic full backup restores the data from a storage policy copy based on the copy precedence configuration set on the policy. Set the value for this parameter to 1 to change the default behavior and give precedence to the primary copy first followed by other copies even though the copy precedence set on the storage policy is different.

Array Management Data Collection Interval in hours Definition:  Specifies the interval (hours) that collects the details about Volumes, LUNs, and Snapshots configured on NetApp Storage Array in Array Management.

Default Value: 24 hours

Range: 0 to 720

Automatic Drive Cleaning check interval in Minutes Definition: Specifies how often the Media & Library Manager service on the CommServe should check for drives that require cleaning and start cleaning these drives. This parameter is only valid if the Enable Auto-Cleaning options are enabled in the Drive tab of the Library Properties dialog box.

Default Value: 20

Range: 2 to 1440

Usage: Dirty tape drives are the biggest concern when reading/writing to tape media. This parameter sets the interval for periodic checks for signals from the library indicating drive cleaning required. Alternative is for manual or scheduled cleaning.

Automatically deconfigure tape drivepools and library controllers while deleting MediaAgent Definition: Specifies that the tape libraries associated with a MediaAgent are deleted when the MediaAgent is deleted.

Default Value: 0

Range: 0 (disabled) or 1 (enabled)

Usage: Set the parameter to 1 to ensure that the tape libraries associated with a MediaAgent are deleted when the MediaAgent is deleted. When the parameter is set to 0, you will see a pop-up message stating that libraries are configured on MediaAgent.

Create disaster recovery storage policy or copy when new library is configured Definition: Specifies whether the disaster recovery storage policy needs to be created automatically when a new library is configured. This option will create a disaster recovery (DR) storage policy if it does not exists in the CommCell Console.

Default Value: 1

Range: 0 (disabled) or 1 (enabled)

Usage: By default, value is set to 1, which indicates that the disaster recovery storage policy is automatically created when new library is configured.

If this value is set to 0, then this option is disabled.

Days to keep Mount path files on source location after successful mount path move job Definition: Specifies the number of days to keep source mount path files on the source MediaAgent after mount path has been successfully moved by using the Move Mount Path option.

Default Value: 1 day

Range: 1 day to 30 days

Default low-water mark for newly-created Scratch Pools Definition: Specifies the threshold of scratch pools per library. If the number of scratch pools falls below the defined threshold, events will be triggered, and alerts, if configured, will be triggered as well.

Default Value: 20

Range: 0 to 9,999

Usage: Newly created Tape Scratch Pools will be given this value for low-water mark of the number of tapes required in the pool. Events, and Alerts if configured, are generated. This value should be set to the maximum number of tapes you anticipate consuming in a 48 hour (weekend) period. This should then give you ample warning to replenish the media in the pools to avoid data protection failures from insufficient media.

Delete NetApp secondary vault/mirror volumes for aged members Definition: You can use this configuration parameter to enable the deletion of secondary volumes corresponding to aged or deleted dataset members or subscription context members on OnCommand Unified Manager (OCUM).

Default Value:  0

Range: 0 or 1

Usage: Set this parameter to 1 to enable physical deletion of secondary volumes on the NetApp filer for the corresponding deleted dataset and dataset members.

For this parameter to take effect when there is subclient deletion or reassociation, or subclient member deletion or reassociation, set  the Enable Dataset and Dataset Pruning parameter to 1.

If the Enable Dataset and Dataset Pruning value is 0 and Delete this secondary volumes for aged dataset members is 1, then the secondary volumes are deleted only when there is storage policy deletion or storage policy copy deletion.

Note: For 7-Mode, the storage policy or storage policy copy deletion does not trigger the volume deletion for the third node, even when this parameter value is set to 1.

Deletion of jobs will not force full on next backup Definition: Specifies that if a job is pruned, the next job will not automatically be forced to be a full backup, it will be a differential backup.

Default Value: 0

Range: 0 (disabled) or 1 (enabled)

Usage: After the initial Full backup, jobs may be pruned manually because they failed or were improperly run. To ensure data integrity a new Full backup should be run. In some cases this may not be necessary or prudent. Temporarily enabling this parameter allows the administrator to control that action as may be required.

Disable the creation of VSS Protection snap for mount operations coming from a snap job Definition: Use this configuration parameter to disable the creation of VSS Protection snap when mount operations of a snap job.

Default Value: 0

Range: 0 (disabled) or 1 (enabled)

Usage: If the value is set to 1, the creation of VSS Protection snap for mount operations of a snap job is disabled.

Disallow changes to encryption settings on storage policy Definition: Use this configuration parameter to enable or disable changes to encryption settings from storage policy copies.

Default Value: 0

Range: 0 (disabled) or 1 (enabled)

Usage: Set this value to 1, once the encryption settings are established in the storage policy copies. This will gray out the settings established in the copies, so that the encryption settings  are not accidentally altered by users once it is established.

See Configuring Data Encryption on a Storage Policy Copy for additional information.

Tip: After changing the value, press F5 to refresh the setting in the Storage Policy Copy to ensure that the change is reflected in the copies.

Do not create dependent storage policy when creating a disk/cloud storage pool or a global deduplication policy Definition: Use this configuration parameter to disable the automatic creation of a storage policy associated with the Global Deduplication Policy when creating a disk or a cloud network storage pool.

Default Value: 0

Range: 0 (disabled) or 1 (enabled)

Usage: If the value is set to 1, then while configuring the cloud or disk network storage pool a storage policy associated with the Global Deduplication Policy will not be created.

Do not mark media full when encountering CRC error Definition: Specifies that the media will not be marked full when CRC (Cyclic Redundancy Check) error is encountered.

Default Value: 0

Range: 0 (disabled) or 1 (enabled)

Usage: Use to control media consumption.

Enable compression on Media Agent for Oracle/Oracle RAC Non-Dedup backups Definition: Specifies the client or MediaAgent for Oracle and Oracle RAC log backups when you use a non-deduplication storage policy.

Default Value: 0

Range: 0 (client side compression) or 1 (MediaAgent compression)

Usage: Use to control compression.

Export Operation Retry Count Definition: Specifies the number of times an export operation must be retried by the MediaAgent when a mail slot is full.

Default Value: 10

Range: 0 to 10

Usage: This parameter may be used in conjunction with export alerts to ensure export is given chance to succeed before failing.

Ignore media and drive use count thresholds for Virtual Tape Libraries Definition: Specifies whether the media and drive count threshold is ignored for Virtual Tape Libraries.

Default Value: 1

Range: 0 (No) or 1 (Yes)

Usage: Tape drive and media usage and error thresholds, if reached, can mark the drive or media offline or bad. This is usually not necessary in a Virtual tape environment.

Import only media that were not moved to IE Port as part of export operation Definition: Specifies that media that are waiting in the I/E Port for export are not re-imported into the library.

Default Value: 0

Range: 0 (disabled) or 1 (enabled)

Usage: By default, the import operation imports all media that are in the I/E Port regardless of their status. When this option is set to 1 (enabled), media that are waiting in the I/E Port for export are not re-imported when outside media are imported into the library.

Interval (hours) between marking large disk volumes full Definition: Specifies the interval (hours) between marking all disk volumes full.

Default Value: 8 Hours

Range: 1 to 168

Usage: Used to keep disk volume sizes (and number of chunks/files per volume) to a manageable level. In this case time is used to limit the size for those situations where the data chunk sizes are smaller.

Interval (in minutes) to clean up deleted storage policies or copies Definition: Specifies the time in minutes for cleaning up deleted storage policies.

Default Value: 30

Range: 1 to 1440 minutes

Usage: Removes deleted Storage Policies from the CommCell Console

Interval (Minutes) between disk space updates Definition: Specifies how often the disk space information is updated for mount paths associated with disk libraries.

Also, if Enable Managed Disk Space for disk data option is enabled in the Retention tab of the Copy Properties dialog box, data is also deleted (if necessary) if it has been marked for deletion by a Data Aging operation.

Default Value: 30 minutes

Range: 5 to 60

Usage: Best used to free up managed disk space in a timely manner.

If the value is set to zero, then the disk space information is updated every 10 minutes.

Interval (Minutes) between volume size update requests Definition: Specifies how often a request is sent to update volume size for all the MediaAgent(s).

Note: If you have upgraded from V 9.0 to the current version, the Interval between volume size update requests parameter is available on the Data Aging tab.

Default Value: 120 minutes

Range: 15 to 2880 minutes

Usage: If the value is set to zero, then the request will not be sent to update the volume size.

LAN MediaAgent liveliness check interval in Minutes Definition: Specifies the interval at which the LAN MediaAgent (MediaAgent and Client are not on the same computer) will execute a liveliness check. These intervals tend to be smaller, as frequent liveliness checks are needed for a network environment.

Default Value: 30

Range: 2 to 1440

Usage: Liveliness checks are conducted to ensure necessary services are running and listening. Increasing the interval value may be recommended to minimize network traffic if you have a large number of LAN MediaAgents and you have other mechanisms in place to verify network and services availability.

LAN-Free MediaAgent liveliness check interval in Minutes Definition: Specifies the interval at which the LAN-free MediaAgent (MediaAgent and Client are on the same computer) will execute a liveliness check. These intervals tend to be larger, as fewer liveliness checks are needed for a LAN-free environment.

Default Value: 1440

Range: 2 to 2880

Usage: Liveliness checks are conducted to ensure necessary services are running and listening. Decreasing the interval value may be recommended to detect MediaAgent unavailability if MediaAgent services tend to hang or not start.

Library Arm Controller failover interval in Minutes Definition: Specifies the interval at which the library will be checked for being offline, at which point the fail-over system will take over.

Default Value: 10

Range: 2 to 1440

Usage: MediaAgents writing to a tape drive in a library get immediate indication of a tape drive going offline. The MediaAgent which has Library Arm Control does not get any indication until it needs to execute a tape movement command. As such, periodic operational status checks of the library are considered prudent. The overhead involved in performing this check is minimal. Failover interval should be set to account for the minimum time between tape movement commands.

Maximum number to retry on snap operation Definition: Specifies the number of retries for mount, unmount, or other operations after which the operation is not attempted anymore automatically.

Default Value: 5

Range: 5 to 100

Usage: Prevents excessive retries due to SCSI errors.

Maximum size per batch to process managed disk space Definition: Specifies the maximum size per batch to process managed disk space.

Default Value: 50,000

Range: 512 to 1,000,000

Usage: Managed disk space process is run every 30 minutes to evaluate if used disk space as exceeded its maximum threshold and, if so, erases aged data until the minimum threshold level is achieved. The maximum number of jobs erased in each event is determined by this parameter. Too high a parameter may impact other jobs. Too low of a parameter may not free up space in time.

If the specified value is less than 512, it will automatically updated to 512.

Media Management Maintenance Check Interval in Minutes Definition: Specifies the interval at which the following media management maintenance issues will be checked:
  • Disk space thresholds
  • Media being offline
  • Media that needs to be marked as invalid

If any of these items fail to meet the defined thresholds then any configured events or alerts will be triggered.

Default Value: 15

Range: 5 to 1440

Usage: Default setting assumes that 15 minutes of disk write along with the time required to remove data will prevent the library from hitting capacity limits. If disk write speed is higher or capacity lower, then decreasing this setting might be prudent. Increasing this value may reduce overhead or enable the process to occur at a more convenient time.

Mount Path Fragmentation Threshold percentage Definition: Specifies the allowed fragmentation percentage for the mount path. If the fragmentation on the mount path is above this percentage, then the mount path would be considered fragmented.

If the defined threshold has been met, the Library Management Maintenance Required alert, if configured, will be triggered.

Default Value: 100%

Range: 1 to 100

Usage: Used in conjunction with Per File Threshold Percentage to minimize the level of fragmentation on a magnetic library mount path. Fragmentation will degrade read performance for restore or auxiliary copy operations. Amount of fragmentation can be reported for each mount path as a measure of performance expectations and need to performance maintenance.

Number of days in advance to trigger alert for low disk space for disk library Definition: Specifies the number of days in advance that you receive an alert that a disk library is about to run out of space (low disk space alert).

Default Value: 0

Range: 0 (disabled) or > 0 (enabled)

Usage: When you specify a value greater than 0, you receive a low disk space alert n days before the disk library runs out of space (where n = the value specified). If you configure a low disk space alert, you do not receive notifications for low watermark or warning watermark.

Number of disk folders to process in a single Data Aging request Definition: Specifies the number of folders that will be processed in a single request as part of disk cleanup.

Default Value: 1000

Range: 1 to 5000

Usage: Too many folders can impact Data Aging performance and timing. Too few folders might not include all of the folders that need to be reviewed for aging.

Number of volumes for size update Definition: Specifies the number of volumes that gets sent to the MediaAgents for volume size update.

Note: If you have upgraded from V 9.0 to the current version, the Number of volumes for size update parameter is available on the Data Aging tab.

Default Value: 1000

Range: 50 to 50,000

Usage: Sets the batch count per MediaAgent or volume update information.

Per-file fragmentation threshold Definition: Specifies the number of fragmentation allowed for each file.

Default Value: 10

Range: 1 to 10000

Usage: Used in conjunction with Mount Path Fragmentation Threshold Percentage to minimize the level of fragmentation on a disk library mount path. Fragmentation will degrade read performance for restore or auxiliary copy operations.

Perform Smart Clone operation by snap engines (for V9 and V10 Clients only) Definition: Specifies to enable the Smart Clone for IBM SVC FlashCopy operation.

Applicable for v9 and v10 clients only.

Default Value: 0

Range: 0 (disabled) or 1 (enabled)

Usage: This parameter enables to perform Smart clone operation. During Smart Clone operation the regular jobs except revert operation will be continued as normal. Revert operation can be performed only when the Flash copy operation is completed.

Prefer MediaAgent having same additional setting as client Definition: Enables the feature that allows you pair a MediaAgent with a client for data protection operations. The client and the MediaAgent are paired when they both have the PreferredMediaAgentGroup additional setting with same values.

Default Value: 0

Range: 0 (disabled) or 1 (enabled)

Usage: By default, the value is set to 0. To enable mapping between MediaAgents and roaming clients, set the value to 1.

Provide user with MediaAgent management rights additional capabilities for libraries, data paths, and storage policies Definition: Specifies how MediaAgent Management permissions are checked for a user.

If this value is set to 1, the user has the following additional rights to manage the MediaAgent that they have rights on:

  • Configure or deconfigure libraries and drives.
  • Create, update or delete a Storage Policy with libraries and drives on the MediaAgent.
  • Add data paths to the MediaAgent.
  • Add the user group (the user belongs) to the newly-configured libraries.

If this value is set to 0, the additional operations are not supported and they revert back to the default behavior. In the default behavior, the user must have Storage Policy Management and Administrative Management rights to perform the above operations.

Default Value: 1

Range: 0 (disabled) or 1 (enabled)

Usage: Used similar to the Library Administration versus Library Management rights assigned to a CommCell User Group. Library Management grants additional task capabilities that would otherwise be reserved for Administrative Management. Enabling this parameter does the same thing for MediaAgent level tasks otherwise requiring Administrative Management or Storage Policy Management rights.
Redistribute discovered media into spare groups based on barcode patterns Definition: Specifies that when barcode patterns are defined for media groups in a library, any existing media or media moved from another library that matches the barcode patterns will be automatically associated with the appropriate media group.

Default Value: 0

Range: 0 (disabled) or 1 (enabled)

Usage: Managing existing and new media in a library by automatically associating the media with the appropriate media group based on the barcode pattern defined.

Retain scratch media information when deconfiguring library Definition: Specifies whether the scratch (new/aged) media information is retained when a tape library is deconfigured.

Default Value: 0

Range: 0 (disabled) or 1 (enabled)

Usage: Controls the retention of scratch media if library is deconfigured.

Show hidden libraries Definition: Specifies whether libraries that are marked as hidden are visible in the CommCell Console.
  • If this value is set to 0, libraries with the Hide Library option selected (in Library Properties) will not visible from the CommCell Console. Additionally, such libraries will not be available for selection during other operations such as storage policy creation, data path selection, etc.
  • If this value is set to 1, all libraries remain visible, even if the Hide Library option is selected .

Default Value: 0

Range: 0 (disabled) 1 (enabled)

Usage: Once the libraries are hidden, the only way to unhide these libraries is to enable this parameter.

Show Storage Policies disabled for Backup Definition: Specifies whether storage policies disabled for backup are visible in the CommCell Console.
  • If this value is set to 0, storage policies with the Disable Storage Policy for Backups option selected are not visible from the CommCell Console. Additionally, creating or editing a subclient, the storage policy cannot be selected.
  • If this value is set to 1, all storage policies remain visible, and all the storage policies disabled for backup previously become visible.

Default Value: 0

Range: 0 (disabled) or 1 (enabled)

Usage: Once storage policies are hidden, the only way to unhide them is to enable this parameter and then clear the Disable Storage Policy for Backups option.

Skip low water mark alerts for mount paths disabled for write Definition: Specifies that the low watermark warning is not generated for the mount paths on which the write operations are disabled. See, Disabling Write Operations on a Mount Path.

Default Value: 0

Range: 0 (disabled) or 1 (enabled)

Usage: Use this parameter to disable the low watermark alert generation for mount paths that are disabled for write operations as these mount paths are only in use for read operations.

Snap Prune Interval in Minutes Definition: Snap configuration to manage and control the time interval (in minutes) between snap physical delete requests for aged and/or failed snaps from Media Manager.

Default Value: 1 minute

Range: 1 to 1440 minutes (1 day)

Usage: Use the parameter to manage the time interval between requests for physical deletes on aged snaps, failed snaps, or both.

Suppress media mount failure due to cleaning media while running inventory job Definition: When this parameter is enabled the mount failure alert is not generated during inventory job for cleaning media.

Default Value: 0

Range: 0 (disabled) 1 (enabled)

Usage: By default, during the inventory job, a mount job failure alert is generated for cleaning media. However, you can enable this parameter to suppress the alert for cleaning media while running the inventory job.

Timeout in seconds for mount path or drive validation job Definition: Specifies the time in seconds after which the Validate operation is times out. This configuration parameter is for timing out the Validate operation, after the set number of seconds (value of param)

Default Value: 10800

Range: 10800 to 86400

Usage: Use this parameter to define the time value within which the Validate operation must complete.

Timeout (in minutes) to expire snap operation requests sent to MediaAgent Definition: Specifies the time in minutes after which a snap operation request sent to a MediaAgent expires. Requests that timeout are considered failed request.

Default Value: 720

Range: 1 – 10080 minutes

Update cloud library credential to selected device controller only Definition: When this option is enabled, you can set different access credentials for individual device controller on the same cloud device.

Default Value: 0

Range: 0 (disabled) 1 (enabled)

Usage: When this parameter is disabled, any changes made on one controller of the cloud device will be copied to all the other existing controllers. When the parameter is enabled, then from CommCell Console you can modify the access credentials of only the edited controller.