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Best practices for setting up Dell VTL Container or NetVault Backup native virtual tape library (nVTL)

Space reclamation from the virtual media of a NetVault Backup VTL hosted on the DR Series

appliance has some speciﬁc requirements. Even though NetVault Backup can locate and

blank media that is marked for reuse, the DR Series appliance will not know that NetVault

Backup has marked the media for reuse and will not reclaim the space on the next clean

cycle. This is because the NetVault Backup only updates its database information on the

media and does not scrub through and remove the old data.

To ensure that the clean cycle on the DR Series appliance can reclaim space, the marked-

for-reuse media must be identiﬁed, blanked using the nvmakemedia utility, removed, and

then added again as a new ﬁle. Because the new ﬁle no longer has any content, the clean

cycle can reclaim the space. A script can be run to build a list of the media, blank it, and use

the nvmakemedia utility to re-create the ﬁles. For a sample script that can be modiﬁed for

either type of installation, see Error! Reference source not found..

Optional NetVault Backup conﬁgurations for optimum performance

To ensure optimum performance settings within NetVault Backup, complete the

following steps.

1. In the Navigation pane of the NetVault Backup WebUI, click Manage Devices.

2. Click the arrow to the left of the device that you want to conﬁgure, and then click the

icon to the right of the drive to change its settings.