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71
Use Xsan Admin and related command-line tools to expand,
add, modify, check, and repair SAN volumes.
This chapter shows how you can expand an existing Xsan volume to provide more free
space. It also contains information about volume and storage pool settings, and shows
how to check and resolve volume integrity and fragmentation problems.
Add storage
To increase the storage on your SAN, you can:
Add volumes Â
Add storage pools to existing volumes Â
Add LUNs to anity tags Â
If you add a volume based on a custom volume type, you work directly with storage
pools. However, if you add a volume using a built-in Xsan volume type (for example,
General File Server or Podcast Producer Cluster), you don’t deal directly with storage
pools. Instead, you work with anity tags that represent storage pools. Xsan Admin
organizes available LUNs into storage pools for you, based on the performance
requirements of the chosen volume type.
Adding a storage pool to a volume increases available storage and also requires
Xsan Admin to stop the volume and unmount it. Adding storage pools is a quick
way to expand a volume and doesn’t require defragmenting the volume to recover
performance.
Important: If you add LUNs to an anity tag, add LUNs only in the recommended
multiples. Keep surplus LUNs as extras until you have enough to add them in
the recommended multiples for the volume type. Adding LUNs other than in the
recommended multiples can result in serious fragmentation.
5
Manage SAN storage
- Administrator Guide 1
- Contents 3
- Chapter 3: Plan a SAN 4
- Chapter 4: Set up a SAN 4
- Contents 5 5
- 6 Contents 6
- Contents 7 7
- 8 Contents 8
- About this book 11
- What’s new in Xsan 2 12
- More information 13
- Notation conventions 14
- Quick SAN setup 15
- Equipment you’ll need 16
- What you need to know 16
- SAN setup instructions 17
- Step 8: Congure the SAN 23
- Step 9: Create a SAN volume 27
- What’s next? 30
- Overview of Xsan 31
- Xsan SANs 32
- Shared SAN volumes 33
- Metadata controllers 33
- Network connections 33
- How Xsan storage is organized 34
- Storage pools 35
- Anities and anity tags 35
- Folders with anities 36
- Metadata and journal data 37
- Stripe at a higher level 37
- Security 38
- Expand storage 38
- Xsan capacities 38
- Plan a SAN 40
- Supported storage devices 41
- Fibre Channel fabric 41
- Ethernet TCP/IP network 42
- Directory services 43
- Plan your SAN 44
- Chapter 3 Plan a SAN 45 45
- Chapter 3 Plan a SAN 47 47
- Chapter 3 Plan a SAN 51 51
- Use switches instead of hubs 52
- Congure RAID systems 53
- Choose RAID levels for LUNs 54
- Chapter 3 Plan a SAN 55 55
- Set up a SAN 56
- Use Xsan Admin 58
- SAN and volume setup summary 58
- Step 5: Set up RAID systems 62
- Step 9: Create a volume 65
- Rename a SAN 69
- Set up another SAN 69
- Manage multiple SANs 69
- Destroy a SAN 70
- Manage SAN storage 71
- Prepare LUNs 72
- Add a volume to a SAN 73
- Add LUNs to an anity tag 75
- Set up a folder anity 77
- Change a folder’s anity 78
- Remove an anity 79
- Set the block allocation size 80
- Enable extended attributes 81
- Change storage pool settings 83
- Maintain SAN volumes 84
- Rename a volume 85
- Check volume fragmentation 85
- Defragment a volume 85
- command-line tool to check 86
- Repair a volume 87
- Check RAID devices 88
- Destroy a volume 88
- Manage clients and users 89
- Add an Xsan serial number 91
- Mount a volume on a client 92
- Change mount options 93
- Manage users and groups 93
- Add SAN users 94
- Delete SAN users 95
- Create groups 95
- Delete groups 96
- Change group membership 96
- Unmount a volume on a client 98
- Remove a client from a SAN 99
- Set SAN user and group quotas 100
- About Xsan quotas 102
- Check user quota status 103
- Help users check quotas 104
- Connection 105
- Action menu 105
- Manage metadata controllers 107
- Select to view 108
- in SAN 108
- Add button 108
- $ sudo cvadmin -e select 110
- $ sudo changeip oldIP newIP 111
- Monitor controller status 114
- Monitor SAN status 115
- Check volume status 116
- Monitor RAID devices 116
- Check free space 117
- Graph SAN resource usage 118
- Set up status notications 119
- View Xsan logs 120
- Check volume clients 121
- Solve SAN problems 122
- $ sudo cvadmin 123
- If le copying doesn’t nish 125
- Upgrade to Xsan 2.3 127
- Version compatibility 128
- Upgrade your SAN software 128
- Step 9: Reenable Spotlight 132
- Step 13: Reenable Spotlight 139
- Combine Xsan controllers and 140
- StorNext clients 140
- Use command-line tools 142
- Â -verbose parameter: 144
- Xsan commands 145
- Copy les or folders (cvcp) 149
- ” below 150
- Option Description 151
- Initialize a volume (cvmkfs) 153
- Mount an Xsan volume 157
- Unmount an Xsan volume 157
- Xsan conguration les 158
- Glossary 159
- 160 Glossary 160
- Glossary 161 161
- Index 163 163
- 164 Index 164
- Index 165 165
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