Dell NetWorker 19.9 Administration Guide

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Guidelines for completing Label Template attributes

There are certain guidelines to keep in mind when completing the attributes for a Label Template resource. The following table describes how to complete the key attributes for this resource.

Table 1. Key label template attributes
Attribute	Guidelines
Name	Keep the label name consistent with the media pool name, so that the label name reflects how the data is organized. For example, a label template named "AcctFull" would identify volumes that belong to a media pool called "Accounting Full." Do not use these characters in label template names: / \ * ? [ ] ( ) $ ! ^ ; ’ " ’ ~ < > & \| { } : - . _
Fields	A label template is made up of one or more fields. Each field, or component, provides a layer of specificity to your organizational structure. There can be any number of components, but it is best to keep the template simple with as few as necessary. The label cannot exceed 64 characters. You can use four types of components: Range of numbers (for example, 001-999) Range of lowercase letters (for example, aa-zz) Range of uppercase letters (for example, AA-ZZ) Character string (for example, Accounting) Each range includes a start value, a dash (-), and an end value. The start value and the end value must have the same number of characters. For example, use 01-99 (not 1-99) or aaa-zzz (not aa-zzz). The order in which you enter each component of the Field attribute is important. The NetWorker Server applies each component in a left-to-right order, starting with the first one entered.
Separator	Choose the symbol to appear between component entries. Use the period, dash, colon, or underscore to separate each component of the label template. If label components do not have separators (for example, AA00aa), the labels can be difficult to read.
Next	Choose the next sequence number to write on the label that the NetWorker Server places on a volume (according to the template). To force a label to start the label scheme at a particular point, type a start label value. The server continues to generate labels from that point on, according to the rules of the template. To have the NetWorker Server generate the first label, leave this attribute blank. When the NetWorker Server recycles a storage volume, the volume label does not change as long as the volume remains in the same media pool. That is, if a storage volume labeled "Dev.006" is recycled, it retains the volume label "Dev.006" and does not receive a new label with the next sequence number.

The following table lists examples of number sequences for volume labels.

Table 2. Examples of number sequences for volume labels
Type of components	Fields	Number sequence result	Total number of labels
Range of numbers	001-100	001, 002, 003,...100	100
Character string Range of numbers	SalesFull 001-100	SalesFull.001,...SalesFull.100	100
Range of lowercase letters Range of numbers	aa-zz 00-99	aa.00,...aa.99, ab.00,...ab.99, ac.00,...ac.99, : az.00...az.99, ba.00,...ba.99 : zz.00,...zz.99	67,600 (262 times 102)

The label template should allow for expansion of the backup media storage system. For example, it is better to create a template for 100 tapes and not use all of them, than it is to create a template for only 10 tapes and run out of labels. When the server reaches the end of the template numbering sequence, it wraps to the starting value. For example, after zz.99 (used for the 67,600th label), the next label the server uses is aa.00 for label 67,601.

NOTE:When the NetWorker server recycles a volume, the volume label does not change if the volume remains in the same media pool. That is, if a volume labeled Dev.006 is recycled, it will retain the volume label Dev.006 and will not receive a new label with the next sequence number. The original data on the volume, however, will be overwritten by the new data.