White Papers
Table Of Contents
- 1 Installing and configuring the DR Series system for use with CommVault Simpana
- 2 Configuring CIFS and NFS containers for CommVault Simpana
- 2.1 Creating containers in the DR Series system
- 2.2 Adding the target container(s) to CommVault Simpana
- 2.2 Setting up a single system environment (DR Series system as NFS disk library)
- 2.3 Setting up a replicated system environment
- 2.4 Using the continuous data replicator to replicate client data to a DR Series container
- 3 Configuring VTL for CommVault Simpana
- 4 Setting up the DR Series system cleaner
- 5 Monitoring deduplication, compression, and performance
- A VTL configuration guidelines
- A.1 Managing VTL protocol accounts and credentials
- A.2 VTL default account summary table
- A.3 Managing VTL media and space use
- A.3.1 General performance guidelines for DMA configuration
- A.3.2 Physical space sizing and planning
- A.3.3 Logical VTL geometry and media sizing
- A.3.4 Media retention and grouping
- A.3.5 VTL media count guidelines
- A.3.6 Adding the VTL media to the container
- A.3.7 Updating CommVault to identify newly added VTL media
- A.3.8 Space reclamation
- B Glossary
89 Setting Up the Dell™ DR Series System as a CIFS or VTL Backup Target on CommVault Simpana |
April 2015
20TB Total initial footprint with a 10% change rate
Pre-Deduplication
Week
Logical
Size
Logical
Full Metrics
10% Change Rate
Logical
Incremental
Metrics
1
24.2TB
20TB 2TB
2
24.2TB
20TB
2TB
3
24.2TB
20TB
2TB
4
24.2TB
20TB 2TB
5
24.2TB
20TB
2TB
Total
121TB
A.3.4 Media retention and grouping
Due to the nature of Virtual Tape Libraries media must be managed in order to insure that
physical capacity is reclaimed in an orderly fashion t avoid running out of space and
disrupting operations. Media must be grouped within the data management application,
such as NetVault: Backup, in a way that full data sets are targeted to separate media as
incremental data and they in turn are grouped by data sets that expire within the same
period or that share the same recovery point objective. This insures that media can be
reused effectively so that when full all incremental data expire the logical space can be
reconciled thus enabling the physical space to be reclaimed.
A.3.5 VTL media count guidelines
Type
Capacity
Max number of Tapes supported
LTO-4
800GiB
2000
LTO-3
400GiB
4000
LTO-2
200GiB
8000
LTO-1
100Gib
10000
LTO-1
50Gib
10000
LTO-1
10GiB
10000