APC RAID Subsystem SCSI-SATA II User Manual Page 242
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SAS / SATA II NAS System
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User’s Manual
Chapter 11 proNAS HA (Optional Function)
11.1 Introduction to proNAS HA
proNAS HA (High Availability) provides solution for business continuity with automatic
failover which ensures that should a critical server become unavailable - due to failure
or maintenance-related downtime — a replica will immediately provide all services in its
place without the need for time-consuming manual procedures.
The core processes of ProNAS HA are implemented as two mutual-guarded fail-safe
proNAS services. They can be manipulated by accessing the Services tab in the proNAS
System Manager node. The dual service architecture of ProNAS HA prevents ProNAS
HA from being the single-point-of-failure of the server cluster.
When a server is down or unavailable, ProNAS HA switches the critical operations of
that server over to the peer server automatically. The switch over procedure can also
be triggered manually to handle scheduled downtime more gracefully and user
transparently. ProNAS HA can be manually instructed to switch over the critical
operations of a server to the peer server. Users can then perform upgrade, replacement,
or maintenance to the hardware and software of that proNAS server. The critical
operations of a server can be configured as auto-switch back. After those critical
operations were taken over by the peer server, ProNAS HA can switch them back to
their original active server when the active server becomes available again. Auto-switch
back ensures that the original load distribution between the two servers will be
resumed immediately when possible.
proNAS HA provides:
¾ Manual or auto-triggered failover to a standby server.
¾ Supports manual or automatic failover back to the original server when ready
¾ Real-time replication minimizes potential data loss
NOTE: proNAS version 1.3.xx supports Replication of Logical
Volumes with LV capacity up to 16TB. proNAS HA also has the
same LV size limit, which means all logical volumes in proNAS
(under HA) must not exceed 16TB.
- SAS/SATA II NAS System 1
- Table of Contents 2
- Preface 7
- FCC Compliance Statement 8
- Before You Begin 9
- SAS / SATA II NAS System 10
- User’s Manual 10
- Chapter 1 Introduction 11
- 1.1 Key Features 12
- 1.3 RAID Concepts 16
- RAID Management 20
- 1.4 Array Definition 21
- 1.5 High Availability 22
- 3.2 Powering On 28
- 3.3 Installing Hard Drives 30
- Main Menu 37
- Chapter 5 RAID Management 47
- 5.2 RAID Set Functions 49
- 5.2.2 Delete RAID Set 50
- 5.2.4 Offline RAID Set 54
- 5.2.6 Create Hot Spare 57
- 5.2.7 Delete Hot Spare 57
- 5.2.8 Rescue Raid Set 58
- 5.3 Volume Set Function 59
- 5.3.2 Create Raid 30/50/60 62
- 5.3.3 Delete Volume Set 63
- 5.3.4 Modify Volume Set 64
- 5.3.5 Check Volume Set 67
- 5.3.7 Stop Volume Check 70
- 5.4 Physical Drive 71
- 5.4.4 Identify Enclosure 73
- 5.5 System Controls 75
- 5.5.4 SNMP Configuration 79
- 5.5.5 NTP Configuration 80
- 5.6 Information Menu 84
- 5.6.2 System Information 85
- 5.6.3 Hardware Monitor 86
- PART II proNAS System 95
- Chapter 7 Introduction 96
- Chapter 8 proNAS Manager 104
- 8.1 Volume Manager 105
- 8.1.3 Volume Snapshot 118
- 8.1.3.3 Delete Snapshots 124
- 8.1.4 Volume Replication 126
- 8.1.5 iSCSI 134
- 8.2 Network Manager 142
- 8.2.2 Internet Gateway 146
- 8.2.3 SNMP/MRTG 147
- 8.2.4 Network Test 148
- 8.3 Account Manager 149
- 8.3.1.3 NIS Authentication 152
- 8.4 Share Manager 161
- 8.4.1 Share Management 162
- 8.4.1.2 Applying ACL 163
- 8.4.1.3 Modifying a Share 163
- 8.4.1.4 Deleting a Share 164
- 8.4.3 Protocol Setting 167
- 8.4.3.2 NFS 168
- 8.4.4.1 Group 169
- 8.4.4.2 Account 170
- 8.4.4.3 IP Address 172
- 8.4.6 Duplication 179
- 8.4.7 Default Share 183
- 8.5 System Manager 184
- 8.5.3 Report tab 187
- 8.5.4 Time tab 188
- 8.5.5 Serial Ports tab 189
- 8.5.6 Power tab 190
- 8.5.7 Reboot tab 191
- 8.5.8 Service tab 192
- 8.5.9 Status tab 195
- 8.6 Backup Manager 197
- 8.6.3 Tape Control 204
- 7. Click “Save” again 207
- 8.7 Log Manager 221
- 8.8 Event Manager 222
- Event Purpose 223
- Chapter 9 File Manager 225
- 9.2 Logon to File Manager 227
- Chapter 10 proBackup 231
- 10.3 Create Backup Plan 234
- 10.4 Restore Backup 240
- 10.5 Account Detail 241
- 11.3 ProNAS HA Properties 254
- 11.6 License Registration 258
- 11.7 Event Log Properties 259
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