Hp ProLiant DL585 G2 Storage-Server User Manual Page 44
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Expanding stora
ge for EVA arrays using Command View EVA
Presenting a vir
tual disk offers its stora ge to a host. To make a virtual disk available to a host, you must
present it. You
can present a virtual disk to a host during or after virtual disk creation. The virtual disk
must be complet
elycreatedbeforethehostpresentationcanoccur. Ifyouchoosehostpresentation
during virtual disk creation, the management agent cannot complete any other task until that virtual
disk is created and presented. Therefore, HP recommends that you wait until a virtual disk is cre ated
before presenting it to a host.
For more i nformation, see the HP StorageWorks Command View EVA User Guide.
Expanding storage using the Array Configuration Utility
The Array Configuration Utility enables online capacity expansion of the array and logical drive for
specific MSA storage arrays, such as the MSA1000 and MSA1500. For more information, use the ACU
online help, or the procedures to “Expand Array” in the Array Configuration Utility User Guide
Expand logical drive
This option in the ACU increases the storage capacity of a logical drive by adding unused space on an
array to the
logical drive on the same array. The unused space is obtained either by expanding an array
or by delet
inganotherlogicaldriveonthesamearray.Formoreinformation,usetheACUonlinehelp,or
the “Exten
d logical drive” procedure in the Array Configuration Utility User Guide
Volume shadow copies
NOTE:
Select storage servers can be deployed in a clustered as well as a non-clustered configuration. This
chapter discusses using shadow copies in a non-clustered environment.
The Volume Shadow Copy Service provides an infrastructure for creating point-in-time snapshots (shadow
copies) of volumes. Shadow Copy supports 64 shadow copies per volume.
A shadow copy contains previous versions of the files or folders contained on a volume at a specific
point in time. While the shadow copy mechanism is managed at the ser ver, previous versions of files
and folders are only available over the network from clients, and are seen on a per folder or file level,
and not as an entire volume.
The shadow copy feature uses data blocks. As changes are made to the file system, the Shadow Copy
Service copies the original blocks to a special cache file, to maintain a consistent view of the file at a
particular point in time. Because the snapshot only contains a subset of the original blocks, the cache
file is typically smaller than the original volume. In the snapshot's original form, it takes up no space
becauseblocksarenotmoveduntilanupdatetothediskoccurs.
By using shadow copies, a storage server can maintain a set of previous versions of all files on the
selected volumes. End users access the file or folder by using a separate client add-on program, which
enables them to view the file in Windows Explorer. Accessing previous versions of files, or shadow
copies, enables users to:
• Recover files that were accidentally deleted. Previous versions can be opened and co pied to
a safe location.
• Recover from accidentally overwriting a file. A previous version of that file can be accessed.
• Compare several versions of a file while working. Use previous versions to compare changes
between two versions of a file.
Shadow c opies cannot replace the current backup, archive, or business recovery system, but they can
help to simplify restore procedures. Because a snapshot only contains a portion of the original data
blocks, shadow copies cannot protect aga inst data loss due to me d ia failures. However, the strength
44
File server management
- HP ProLiant Storage Server 1
- Contents 3
- HP ProLiant Storage Ser ver 9 9
- About this guid e 11
- HP technical support 12
- HP ProLiant Storage Server 13 13
- About this guide 14
- Setup overview 15
- Configuration checklist 16
- Installing the server 17
- Powering on the server 18
- Factory image 18
- Default boot sequence 19
- HP ProLiant Storage Server 21 21
- Logging off and d 23
- Telnet Server 23
- Before you begin 25
- HP ProLiant Storage Server 27 27
- 2 Storage management overview 29
- Physic al storage e lements 30
- Fault tolerance 31
- Logical storage elements 32
- Partitions 33
- File system elements 34
- File sharing elements 34
- Using storage elements 34
- Clustered server elements 34
- Network adapter teaming 35
- 3 File server managem ent 37
- Fi le services management 38
- Storage management utilities 39
- Arr ay Configura 40
- Disk Management utility 40
- Scheduling defragmentation 41
- Disk quotas 42
- Adding storage 42
- Expanding storage 43
- Volume shadow copies 44
- Shadow copy planning 45
- Identifying the storage area 46
- Mounted drives 47
- Managing shadow copies 47
- The shadow copy cache file 48
- Viewing a list o 50
- Set schedules 50
- Managing 51
- SMB shadow copies 52
- NFS shadow copies 53
- Recovery of 54
- files or folders 54
- Recovering a folder 55
- Backup and shadow copies 55
- Folder and share management 56
- Folder management 57
- File server management 58
- HP ProLiant Storage Server 59 59
- HP ProLiant Storage Server 61 61
- Share management 63
- Defining Access Control Lists 64
- Managing shares 64
- File Server Resource Manager 65
- Antivir us 66
- Security 66
- More information 66
- HP ProLiant Storage Server 67 67
- 4Printservices 69
- Print services management 70
- Print queue creation 71
- Driver updates 72
- Best practices 73
- Troubleshooting 73
- Print services 74
- 5MicrosoftServicesforNetwork 75
- File System (MSNFS) 75
- MSNFS use scenarios 76
- Administering 77
- Serv er fo 77
- HP ProLiant Storage Server 79 79
- User Name Mapping 81
- Print services for UNIX 83
- 6Othernetworkfile and print 85
- Adding local NetWare users 87
- Managing NCP volumes (shares) 89
- Print Services for NetWare 90
- AppleTalk and fil 91
- Print services for Macintosh 92
- Point and Prin 92
- 7 Enterprise s torage servers 93
- Virtual disk storage 94
- Snapshots 94
- Wi zards 94
- Hardware providers 95
- Cluster support 95
- Enterprise storage servers 96
- 8 Cluster administration 97
- Cluster terms and components 98
- Cluster concepts 99
- Cluster administration 100
- Stor age planning 101
- Network planning 102
- Protocol planning 102
- Before beginning installation 103
- Cluster installation 105
- Setting u 106
- Creating a cluster 108
- Adding nodes to a cluster 108
- Using Cluster Administrator 108
- Cluster groups 109
- Resource planning 110
- NFS cluster-specificissues 110
- Creating file share resources 111
- Shadow copies in a cluster 112
- Extend a LUN in a cluster 112
- Print services in a cluster 113
- Failing over and failing back 114
- Restarting one cluster node 114
- Powering down the cluster 115
- Powering up the cluster 115
- Maintenance and ser vice 117
- Maintenance a nd 118
- Maintenance updates 118
- Customer self repair 118
- Firmware updates 118
- Certificate of A 119
- 10 System recovery 121
- 122 System recovery 122
- AServercomponents 123
- HP ProLiant ML310 124
- DL320s hardwar 126
- DL585 G2 hardware components 129
- 1 2 3 4 5 6 7 8 130
- 9 10 11 12 13 14 15 16 17 18 130
- Description Status 132
- Webaccess(optional) 133
- C Regula tory comp liance and 135
- Laser compliance 136
- International n 137
- Japanese notice 138
- Korean notice A&B 138
- Battery replacement notice 138
- Taiwan battery 139
- Power cords 139
- Japanese power cord notice 139
- Electrostatic discharge 139
- Czechoslovakian notice 140
- Danish notice 140
- Dutch notice 140
- English notice 141
- Estonian notice 141
- French notice 141
- German notice 142
- Greek notice 142
- Hungarian notice 142
- Italian notice 142
- Latvian notice 143
- Li thuanian notice 143
- Polish notice 143
- Portuguese notice 143
- Slovakian notice 144
- Slovenian notice 144
- Swedish notice 144
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