Apple Mac OS X Server (Version 10.6 Snow Leopard) Uživatelský manuál Strana 33
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- Tabulka s obsahem
- KNIHY
Hodnocené. / 5. Na základě hodnocení zákazníků
Chapter 2 Planning Server Usage 33
Your organization must determine the following:
What must be backed up? Â
What should not be backed up (as per organization policy)? Â
How granular are the restoration needs? Â
How often is the data backed up? Â
How accessible is the data: in other words, how much time will it take to restore it? Â
What processes are in place to recover from a disaster during a backup or restore? Â
The answers to these questions are an integral part of your backup and restore policy.
Understanding Backup Types
There are many types of backup les (explained below), and within each type are
many formats and methods. Each backup type serves a unique purpose and has its
own considerations.
 Full Images: Full images are byte-level copies of data. They capture the state of the
hard disk down to the most basic storage unit. These backups also keep copies of
the disk lesystem and the unused or erased portion of the disk in question.They
can be used for forensic study of the source disk medium. Such detail often makes
le restoration unwieldy. Full Image backups are often compressed and are only
decompressed to restore the entire le set.
 Full File-level Copies: Full le-level copies are backups that are kept as duplicates.
They do not capture the nest detail of unused portions of the source disk, but they
do provide a full record of the les as they existed at the time of backup. If a le
changes, the next full le-level backup copies the entire data set in addition to the
le that changed.
 Incremental Backups: Incremental backups start with le-level copies, but they
only copy les changed since the last backup. This saves storage space and captures
changes as they happen.
 Snapshots: Snapshots are copies of data as it was in the past. You can make
snapshots from collections of les, or more often from links to other les in a backup
le set. Snapshots are useful for making backups of volatile data (data that changes
quickly), like databases in use or mail servers sending and receiving mail.
These backup types are not mutually exclusive. They exemplify dierent approaches
to copying data for backup purposes. For example, Time Machine uses a full le-level
copy as a base backup; then it uses incremental backups to create snapshots of a
computer’s data on a given day.
- Mac OS X Server 1
- Contents 3
- 4 Contents 4
- Contents 5 5
- 6 Contents 6
- Contents 7 7
- 8 Contents 8
- 191 Index 9
- 10 Contents 10
- About This Guide 11
- Using Onscreen Help 12
- Document Road Map 13
- Viewing PDF Guides Onscreen 14
- Printing PDF Guides 14
- Getting Documentation Updates 15
- Standards 16
- What’s New in Server Admin 18
- Supported Standards 20
- Planning Server Usage 24
- Setting Up a Planning Team 25
- Identifying Servers to Set Up 26
- Dening a Migration Strategy 28
- Migrating from Windows 28
- Understanding Backup Types 33
- Understanding Restores 34
- Administration Tools 38
- Server Admin Interface 39
- Server Assistant 41
- Server Preferences 42
- Workgroup Manager 42
- Workgroup Manager Interface 43
- Server Monitor 44
- System Image Management 47
- Media Streaming Management 47
- Command-Line Tools 48
- Server Status Widget 48
- RAID Admin 48
- Xgrid Admin 49
- Apple Remote Desktop 50
- Enhancing Security 51
- About Network Security 52
- MAC Filtering 53
- Transport Encryption 54
- Payload Encryption 54
- About File Security 55
- Secure Delete 56
- Single Sign-On 58
- Public and Private Keys 59
- Certicates 60
- About Identities 61
- About Self-Signed Certicates 61
- About Intermediate Trust 61
- Readying Certicates 64
- Managing Certicates 69
- Deleting a Certicate 70
- Using Certicates 71
- SSH and SSH Keys 72
- Administration Level Security 74
- Service Level Security 75
- Security Best Practices 76
- Password Guidelines 77
- Creating Complex Passwords 78
- Installation and Deployment 79
- Setting Up Network Services 82
- About the Server Install Disc 82
- Before Starting Up 84
- Destination 91
- Choosing a File System 93
- JournaledHFS+ DataStore 50% 96
- Installer application 100
- Terminal application 100
- Administrator computer 101
- Subnet 1 101
- Subnet 2 101
- # Method 1 103
- --setBoot 103
- Software 104
- Installing Multiple Servers 106
- How to Keep Current 107
- Initial Server Setup 108
- Â Import Users and Groups 111
- Â Congure Manually 111
- Using Automatic Server Setup 115
- Handling Setup Errors 121
- Setting Up Services 122
- Setting Up Open Directory 123
- Setting Up User Management 123
- Setting Up All Other Services 123
- Ongoing System Management 124
- Mac OS X Servers 125
- Mac OS X 125
- Ports Used for Administration 127
- Ports Open By Default 127
- Server Admin Basics 128
- Grouping Servers Manually 129
- Identity 132
- Infrastructure Services 133
- Wiki Services 136
- Services 137
- Collaboration Services 139
- Producer 141
- Administering Services 145
- Managing Sharing 148
- Workgroup Manager Basics 150
- Administering Accounts 151
- Dening Managed Preferences 153
- Working with Directory Data 154
- Using Backup Power 161
- Link Aggregation 163
- Link Aggregation Scenarios 164
- Load Balancing 168
- Daemon Overview 169
- Load and unload daemons  170
- Set environment settings  170
- Monitoring Your System 171
- Using Server Monitor 172
- Using Disk Monitoring Tools 173
- Setting Up a Core Dump Server 178
- Setting Up a Core Dump Client 179
- Enabling SNMP reporting 181
- Conguring snmpd 181
- /usr/bin/snmpconf -i 182
- /usr/sbin/snmpd 182
- Tools to Use with SNMP 183
- Open Directory Logging 186
- Additional Monitoring Aids 187
- Push Notication Server 188
- # on the notification server 189
- 192 Index 192
- Index 193 193
- 19 4 Index 194
- Index 195 195
- 19 6 Index 196
- Index 197 197
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