APC Snap Server 2200 Specifications Page 80
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Disaster Recovery Procedural Overview
66 Snap Server Administrator Guide
Disaster Recovery Procedural Overview
The procedures described in this section for responding to a catastrophic event are
general in nature and may result in the loss of data. Should such an event actually
occur, the exact procedure to follow will vary according to environmental
conditions. Snap Appliance strongly recommends you contact a technical service
representative before proceeding.
This section describes a worst-case scenario: (1) the operating system has failed,
perhaps due to a malicious attack to the root file system, and you cannot access the
server; and (2) the data has been corrupted and must be restored from tape. When
you attempt to connect to the server, the Administration Tool does not appear;
instead, the maintenance mode screen opens.
Maintenance Mode
You will encounter the Snap Server maintenance mode when the GuardianOS has
been compromised and is in need of repair or reinstallation. Maintenance mode
consists of a series of HTML screens that allow you to perform the following
functions:
• Reinstall —
Reinstalls the GuardianOS, overwriting any previous configurations,
and prompts you for the SnapDRImage file
• Upgrade/Repair —
Either upgrades the GuardianOS from one version to
another, or applies the GuardianOSImage but preserves system settings.
• Fresh install —
Reinstalls the GuardianOS, overwriting any previous
configurations
Tip
To install the GuardianOS, you must obtain the appropriate GuardianOSImage
file. This file is available from the Snap Appliance website.
Step1: Performing a Fresh Install in Maintenance Mode
If the GuardianOS has been compromised, the initial maintenance mode screen will
appear when you attempt to connect to the server. Use the following procedure to
reinstall the operating system.
Caution
A fresh install overwrites all data on the Snap Server. Do not perform this
operation until all data-recovery attempts have been completed.
1
Download the GuardianOSImage using one of the following methods:
•Click
Browse
to locate and select the file locally.
• Enter a remote path (
FTP
,
HTTP
, etc.) to the file.
- Snap Server 1
- Administrator Guide 1
- ETRUST ANTIVIRUS 6
- Contents 7
- Documentation Feedback 11
- Audience and Purpose 11
- Service and Technical Support 11
- Tips and Cautions 12
- Typographical Conventions 12
- Finding More Information 13
- Administrative Overview 15
- GuardianOS Specifications 16
- Feature Specification 17
- New Features in this Release 19
- Snap Server Manager 19
- Launching Snap Server Manager 20
- Server Name 22
- Date/Time Settings 22
- Configuring an APC-Brand UPS 23
- SnapExtensions 24
- Add-On Features 25
- Chapter 2 27
- TCP/IP Options 28
- Configuring TCP/IP Settings 30
- Windows SMB Access 31
- Support for Windows (SMB) 32
- NFS Access 33
- Apple File Protocol Access 34
- FTP Access 35
- HTTP/HTTPS Access 36
- DHCP Server 36
- User & Group Management 37
- Local Users and Groups 38
- Windows Workgroup or Domain 39
- NIS Domain 41
- Storage Configuration & 43
- Expansion 43
- RAID Groups 45
- Local and Global Hot Spares 45
- RAID Management Tools 46
- Volumes 47
- Quotas 48
- Expansion Arrays 49
- The Snap Disk 10 50
- The Snap Disk 30SA 50
- The Snap Disk 32SA 51
- Status Devices 52
- The Enclosure Summary Screen 53
- Chapter 5 55
- Chapter 5 iSCSI Disks 43 57
- Share and File Access 59
- Components and Options 60
- SnapTree Functionality 61
- Creating Shares 62
- Share Access Behaviors 63
- The NFS Warning Message 64
- (Windows) 65
- Access Permissions 67
- Snapshots 69
- Scheduling Snapshots 70
- NDMP and Snapshots 70
- Snapshots and iSCSI Disks 70
- Adjusting Snapshot Pool Size 71
- Accessing Snapshots 72
- Chapter 7 Snapshots 59 73
- Disaster Recovery 75
- Backup Recommendations 77
- Pre-Restore Requirements 78
- Restore Recommendations 78
- Maintenance Mode 80
- CA eTrust Antivirus Software 83
- Antivirus Dependencies 84
- The Local Scanner View 86
- Defining Scan Jobs 87
- Running a Manual Scan Job 88
- Scheduling a Scan Job 88
- Signature Updates 89
- Download Now 91
- Alert Options 93
- The Move Directory 94
- Log View 95
- Troubleshooting Snap Servers 97
- The Meaning of LED Indicators 100
- Behavior 105
- System Reset Options 106
- Caution 107
- Networking Issues 109
- Miscellaneous Issues 113
- Phone Home Support 114
- Text Field Description 115
- Appendix K 117
- Pre-installation Tasks 119
- Errors Messages To Be Ignored 125
- •Recover — 129
- •Nsrretrieve — 129
- Glossary 131
- Term Definition 132
- Ter m Definition 133
- Chapter 12Symbols 143
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