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108 Performing Advanced Tasks and Operations
Managing Storage Policies
Storage policies is a licensed Advanced Feature of Pathlight VX that defines how to store media. Storage
policies are user-defined management functions that automatically create one or more copies of data on
tape and then release the data on disk as it ages. If you are licensed to use storage polices, you can manage
them from the Setup Policies screen.
Storage policies are a powerful tool that enable you to customize the sizing of the Pathlight VX based on
the amount of disk needed for high-speed backups and restores, and the amount of physical (tape) library
space needed for on-site storage. However, if storage policies are not set up and administered correctly,
policy management can degrade Pathlight VX performance. Review the following implementation
considerations before creating storage policies.
• How Many Policies to Create: The number of policies needed depends on the user's classification
of data. For example, certain data may need to be immediately copied to physical media (tape), but
stay on disk for a long time, such as CxO data. Other data that may not require high-speed restores
may be quickly copied to tape but only left on disk for one or two days, such as user shares.
Incremental backups, which often have a short lifecycle, may never be copied to tape. As a result,
users may have two, three, or more policies based on how data is classified.
• Associating Policies with ISV Media Pools: Storage policies are assigned to groups of virtual
media. Determining the specific data that is written to these media is controlled by a backup
application. In order to guarantee that certain data classes (for example, email or user shares) are
moved correctly by storage policies, the local administrator needs to configure the backup
application supporting Pathlight VX to write each class of data to a different ISV media pool. This
way, when storage policies are run against virtual media, the data on the virtual media is moved
correctly.
For example, a policy is created in Veritas Netbackup© to back up three Exchange servers. The
policy is associated with a media pool called Exchange which contains media barcodes 001, 002,
and 003. On the Pathlight VX, a storage policy is created for email called Exchange_PVX and then
is associated with virtual media barcodes 001, 002, and 003. Any backups to virtual media 001 to
003 will now contain Exchange data and be controlled by the Exchange_PVX storage policy.
As a best practice, administrators should create ISV media pools based on how data needs to be
protected. Pools can be created around groups of servers (for example, data on servers A and B
need to be on disk for 2 days; data on servers C and D for 5 days) or around types of data (for
example, all Exchange data goes to media pool X). These media pools will be assigned a specific
policy. When new virtual media is created, it will be assigned a storage policy and then added to
the appropriate ISV media pool.
• Space Reclamation on Storage Policy Media: Over time, the media used for storage policies
(known as Disk Extension media) develops wasted space as it is used in the Pathlight VX. Wasted
space is a normal by-product of using Disk Extension media in the system. This space will be
automatically reclaimed when virtual media are recycled and as backups expire. If you wish to
reclaim wasted space immediately, refer to Reclaiming Space on Disk Extension Media
on page
98. To determine which Disk Extension media are candidates for space reclamation, refer to
Viewing the Disk Extension Space Usage Report
on page 123. This report lists all formatted Disk
Extension media in the Pathlight VX and, for each media, provides percentages of fill level and
wasted space on the tape.
• Application Window: To make sure that storage policies do not interfere with backups to the
Pathlight VX, an application window is defined. This application window indicates the timeframe
when storage policies are not allowed to run and all Pathlight VX resources are dedicated to serving
backup application requests.
- Pathlight 1
- VX User’s Guide 1
- Contents 3
- 6 Pathlight VX Reports 115 5
- Glossary 173 6
- Index 179 6
- Product Safety Statements 7
- Precautions 8
- Product Model Number 9
- Description 11
- Pathlight VX Models 12
- Pathlight VX Components 13
- FC Switch 14
- RAID Storage Disk 15
- 10 Description 16
- Pathlight VX User’s Guide 11 17
- Pathlight VX 17
- 12 Description 18
- Logging On the Pathlight VX 21
- Logging Off the Pathlight VX 22
- Starting Up the Pathlight VX 23
- Pathlight VX User’s Guide 19 25
- Shutting Down the Hardware 27
- Pathlight VX User’s Guide 23 29
- Rebooting the Pathlight VX 31
- Virtual Library Summary 33
- System Summary 34
- Menu Bar 35
- System Information Buttons 35
- Changing the Admin Password 36
- Changing Network Settings 37
- Pathlight VX User’s Guide 33 39
- Pathlight VX User’s Guide 35 41
- Pathlight VX User’s Guide 37 43
- Pathlight VX User’s Guide 39 45
- Pathlight VX User’s Guide 41 47
- Performing Required Actions 49
- Pathlight VX User’s Guide 45 51
- Pathlight VX User’s Guide 47 53
- Pathlight VX User’s Guide 49 55
- Renaming a Physical Library 56
- Canceling a Pending Request 57
- Creating a Virtual Library 59
- Pathlight VX User’s Guide 55 61
- Modifying a Virtual Library 62
- Deleting a Virtual Library 63
- Working with Virtual Drives 64
- Modifying a Virtual Drive 65
- Deleting a Virtual Drive 66
- Working with Virtual Media 67
- Exporting Virtual Media 69
- Recycling Virtual Media 71
- Deleting Virtual Media 73
- Pathlight VX User’s Guide 69 75
- Managing FC Hosts 76
- Pathlight VX User’s Guide 71 77
- Modifying an FC Host 79
- Removing an FC Host 80
- Pathlight VX User’s Guide 75 81
- Managing User Accounts 82
- Modifying User Accounts 83
- Deleting User Accounts 85
- Setting Media Filters 87
- Pathlight VX User’s Guide 83 89
- Setting Default Media Access 90
- Pathlight VX User’s Guide 85 91
- Setting Media Access Rules 92
- Pathlight VX User’s Guide 87 93
- Pathlight VX User’s Guide 89 95
- Managing Offline Media 97
- Removing Application Media 99
- Removing Cleaning Media 100
- Removing Disk Extension Media 101
- Removing Service Media 103
- Managing Disk Extension Media 104
- Pathlight VX User’s Guide 99 105
- Pathlight VX User’s Guide 101 107
- Enabling Advanced Features 109
- Pathlight VX User’s Guide 105 111
- Disabling Advanced Features 112
- Pathlight VX User’s Guide 107 113
- Managing Storage Policies 114
- Pathlight VX User’s Guide 109 115
- Pathlight VX User’s Guide 111 117
- Archiving Media 118
- Pathlight VX User’s Guide 113 119
- Reverting Archive Media 120
- Pathlight VX Reports 121
- 116 Pathlight VX Reports 122
- Pathlight VX User’s Guide 117 123
- 118 Pathlight VX Reports 124
- Pathlight VX User’s Guide 119 125
- 120 Pathlight VX Reports 126
- Pathlight VX User’s Guide 121 127
- 122 Pathlight VX Reports 128
- Pathlight VX User’s Guide 123 129
- 124 Pathlight VX Reports 130
- Reports About System Activity 131
- 126 Pathlight VX Reports 132
- Pathlight VX User’s Guide 127 133
- 128 Pathlight VX Reports 134
- Viewing the User Login Report 135
- 130 Pathlight VX Reports 136
- Monitoring the Pathlight VX 137
- Viewing Activity Status 138
- Checking System Status 139
- Understanding Service Tickets 140
- Viewing Service Tickets 141
- Modifying Service Tickets 143
- Closing Service Tickets 144
- Pathlight VX User’s Guide 139 145
- Pathlight VX User’s Guide 141 147
- General Troubleshooting 148
- HTTP Proxy Settings 149
- Supported Browser Versions 149
- Internet Explorer 149
- Netscape Navigator 149
- Capturing a System State 150
- Pathlight VX User’s Guide 145 151
- Downloading a System State 152
- Pathlight VX User’s Guide 147 153
- Deleting a System State 154
- Troubleshooting Power Issues 155
- Interpreting Status LEDs 157
- Pathlight VX User’s Guide 153 159
- MS Back Panel—FC HBA LEDs 161
- MS Back Panel—Ethernet LEDs 162
- SNC LEDs 163
- SNC Back Panel—FC Blade LEDs 165
- AX100SC LEDs 167
- AX100SC—Back Panel LEDs 168
- DPE/DAE LEDs 169
- Pathlight VX User’s Guide 165 171
- DAE—Back Panel LCC LEDs 172
- Pathlight VX User’s Guide 167 173
- SPS LEDs 174
- FC Switch LEDs 175
- FC Switch—Back Panel LEDs 176
- Pathlight VX User’s Guide 171 177
- Glossary 179
- 174 Glossary 180
- Pathlight VX User’s Guide 175 181
- 176 Glossary 182
- Pathlight VX User’s Guide 177 183
- 178 Glossary 184
- Pathlight VX User’s Guide 179 185
- 180 Index 186
- Pathlight VX User’s Guide 181 187
- 182 Index 188
- Pathlight VX User’s Guide 183 189
- 184 Index 190
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