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Copy-on Write SnapShot
Hitachi Copy-on Write SnapShot Manuals
Manuals and User Guides for Hitachi Copy-on Write SnapShot. We have
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Hitachi Copy-on Write SnapShot manual available for free PDF download: User Manual
Hitachi Copy-on Write SnapShot User Manual (90 pages)
Simple Modular Storage Copy-on Write SnapShot
Brand:
Hitachi
| Category:
Software
| Size: 0.92 MB
Table of Contents
Intended Audience
4
Release Notes
4
Document Organization
5
Referenced Documents
5
Document Conventions
6
Getting Help
7
Table of Contents
9
1 Snapshot Overview
13
Copy-On-Write Snapshot Software
14
Hardware and Software Configuration
14
How Snapshot Works
15
Volume Pairs-P-Vols and V-Vols
16
Data Pools
18
Differential Management Lus (DM-LU)
18
Consistency Group (CTG)
18
Snapshot Interface-Storage Navigator Modular 2
18
2 Planning and Design
19
The Plan and Design Workflow
20
Assessing Business Needs
20
Establishing How Often a Copy Is Made (Copy Frequency)
20
Selecting a Reasonable Time between Snapshots
21
Establishing How Long a Copy Is Held (Copy Lifespan)
21
Lifespan Based on Backup Requirements
21
Lifespan Based on Business Uses
22
Establishing the Number of V-Vols that Are Required
22
Establishing Data Pool Size
23
Measuring Workload Data
23
Rule of Thumb Calculation
26
Calculating Maximum Capacity
27
Operating System Considerations
28
Identifying P-VOL and V-VOL
28
Cluster Software, Path Switching Software
29
Microsoft Cluster Server (MSCS)
29
Veritas Volume Manager (VXVM)
29
Windows 2000
29
Windows Server 2003
29
Linux and LVM Configuration
30
Windows Server 2003/Windows 2000 and Dynamic Disk
30
3 Requirements
33
System Requirements
34
Supported Platforms
34
4 Enabling and Disabling Snapshot
35
Enabling/Disabling Snapshot
36
5 Configuring Snapshot
39
Configuration Workflow
40
Assign Volumes for the Data Pool
40
Notes on Adding a Data Pool
40
Set up the Virtual Volume (V-VOL) (Manual Method)
41
6 Using Snapshot
43
Snapshot Replication Workflow
44
Back up Your Volume-Create a Pair
44
Using the Backup Wizard
44
Create Pair Procedure
45
Update the V-VOL
46
Restore the P-VOL from the V-VOL
47
Restore from Tape
47
Use the V-VOL for Tape Backup, Testing, Reports, Etc
48
Edit Pairs, Data Pool
49
Delete Pairs, V-Vols, Data Pools
49
Test the Configuration
50
7 Monitoring and Maintenance
51
Monitoring Snapshot
52
Monitoring Pair Status
52
Monitoring Data Pool Usage
53
Expanding the Data Pool
53
Other Methods for Lowering Data Pool Load
53
8 Troubleshooting
55
Pair Failure
56
Recovering from Pair Failure Due to POOL FULL
56
Recovering from Pair Failure Due to a Hardware Failure
56
Data Pool Capacity Exceeded
57
Operations Using CLI
59
Enabling and Disabling Snapshot
60
Operations for Snapshot Configuration
61
Setting the POOL
61
Setting the V-VOL
62
Performing Snapshot CLI Operations
63
Creating Snapshot Pairs
63
Updating Snapshot Logical Unit
64
Restoring V-VOL to P-VOL
64
Releasing Snapshot Pairs
65
Changing Pair Information
66
Creating Pairs that Belong to a Group
66
Sample Back up Script for Windows
67
Snapshot Specifications
69
General Specifications
70
Glossary
73
Concurrent Copy
75
Configuration Definition File
76
Fault Tolerance
78
Fibre Channel
79
Initial Copy
79
Logical Unit
80
Pair Status
81
Index
87
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