Dell NetWorker 19.9 Administration Guide

Front-end Capacity Estimation

NetWorker supports an automatic reporting mechanism that communicates with Dell's Usage Intelligence portal. The reports are sent through either MailHome (Default) or EMC Secure Remote Services (ESRS).

The ESRS RAP resource can be configured to send periodic license, configuration and usage information to Dell as well as track the liveness of NetWorker servers. Several reports are sent, the details of the reports are extracted from command line tools.

The command line tool nsrcapinfo, generates an estimate of the total data protected in a NetWorker datazone. The capacity estimate uses a simple heuristic where it measures the maximum size of a backup save set for each application type and each client in the datazone, this is defined as the client's capacity. The sum of each individual client's capacity provides a capacity estimate for the entire datazone. The nsrcapinfo client granular report provides more details on the individual client capacity parameters such as the following for a given date range:

• Daily Peak Usage— The maximum size of the save set or save stream backed up for a given client on a particular day.
• Daily Maximum Cumulative Report— The sum of all the save set or save stream size backed up for a given client on a particular day.
• Days Measured—The number of days between the start date and the end date.
• Overall Peak Usage—The maximum of "Daily Peak Usage" over a particular duration (Days measured).
• Overall Maximum Cumulative Report—The maximum of "Daily Maximum Cumulative Report" over a particular duration (Days measured).
• Cumulative Report—The sum of the maximum data size of all the unique save sets pertaining to a client for a particular duration (Days measured).

Configuration information is extracted from the RAP database through the command line tool nsrdump. The nsrdump tool automatically hides sensitive information like passwords, but can also be configured to hide other information that customers might not wish to share with Dell.

The following is a sample output of the nsrcapinfo command:

[root@rhel7-cl3 ~]# nsrcapinfo
<?xml version="1.0" encoding="UTF8" standalone="yes" ?>
<!--
~ Copyright (c) 2017-2020 Dell Corporation. All Rights Reserved.
~
~ This software contains the intellectual property of Dell Corporation or is licensed to
~ Dell Corporation from third parties. Use of this software and the intellectual property
~ contained therein is expressly limited to the terms and conditions of the License
~ Agreement under which it is provided by or on behalf of Dell.
-->
<Capacity_Estimate_Report xmlns="http://www.emc.com/esrs/2014/product_usage" xmlns:swid="http://standards.iso.org/iso/19770/-2/2009/schema.xsd">
<Time_Stamp>2020-07-28T11:14:56Z</Time_Stamp>
<Unit_Measurement>GB = 1024000000</Unit_Measurement>
<Server_Timezone>IST</Server_Timezone>
<asset>
        <system_name>NetWorker</system_name>
        <platform>Red Hat Enterprise Linux Server release 7.3 (Maipo)</platform>
        <instance_id></instance_id>
        <swid>
                <software_id>ELMXC2MQB4PCRM</software_id>
                <product_line_code>NETWV</product_line_code>
                <product_line>Dell EMC NetWorker</product_line>
                <product_title>NetWorker</product_title>
                <product_version>99.0.99.10605.Build.10605</product_version>
                <software_creator>Dell EMC Corp.</software_creator>
                <software_licensor>Dell EMC Corp.</software_licensor>
        </swid>
</asset>
<Clients>3</Clients>
<DB2>0.0000</DB2>
<Informix>0.0000</Informix>
<IQ>0.0000</IQ>
<Lotus>0.0000</Lotus>
<MySQL>0.0000</MySQL>
<Sybase>0.0000</Sybase>
<Oracle>0.0000</Oracle>
<SAP_HANA>0.0000</SAP_HANA>
<SAP_Oracle>0.0000</SAP_Oracle>
<Exchange_NMM8.x>0.0000</Exchange_NMM8.x>
<Exchange_NMM9.x>0.0000</Exchange_NMM9.x>
<Hyper-V>0.0000</Hyper-V>
<SharePoint>0.0000</SharePoint>
<SQL_VDI>0.0000</SQL_VDI>
<SQL_VSS>0.0000</SQL_VSS>
<Meditech>0.0000</Meditech>
<Other_Applications>0.0000</Other_Applications>
<Unix_Filesystems>55.7574</Unix_Filesystems>
<VMware_Filesystems>0.0000</VMware_Filesystems>
<Windows_Filesystems>0.0000</Windows_Filesystems>
<Total_Largest_Filesystem_Fulls>55.7574</Total_Largest_Filesystem_Fulls>
<Peak_Daily_Applications>0.0000</Peak_Daily_Applications>
<Capacity_Estimate>55.7574</Capacity_Estimate>
<Days_Measured>60</Days_Measured>
<Physical_sockets>6</Physical_sockets>
<HyperV_sockets>0</HyperV_sockets>
<Number_Of_Protected_HyperV_VMs>0</Number_Of_Protected_HyperV_VMs>
<Vcenter_sockets>0</Vcenter_sockets>
<Number_Of_Protected_VMware_VMs>0</Number_Of_Protected_VMware_VMs>
<Number_Of_ESXi_Hosts>0</Number_Of_ESXi_Hosts>
</Capacity_Estimate_Report>

Consider the following for capacity measurement:

• If multiple backups are taken for the same save set, only the maximum size of the save set is considered among the available backup levels (full, incremental, manual save, and cumulative incremental) for capacity measurement.
• In the case of multi stream or PSS backups, the save stream with the maximum data size is considered for capacity measurement.
• Capacity is measured by querying the media database. Therefore, the capacity estimate increases, if new entries are added to the media database or if a larger data size of the existing save set is backed up.
• For VMware clients, the allocated size rather than the used size is considered for capacity measurement.
• Data that is explicitly backed up from the server client is considered for capacity measurement.

The following is not considered for capacity measurement:

• Expired save sets or the save set entries that are removed from the media database.
• Transaction log and server protection policy backup data.

The NetWorker Command Reference Guide provides more information on the nsrcapinfo command usage and client granular reports.