Promise Technology SMARTSTOR NS4300N User Manual Page 114
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SmartStor NS4300N Product Manual
106
Choosing a RAID Level
There are several issues to consider when choosing the RAID level for your
Volume. The following discussion summarizes some advantages, disadvantages
and applications for each choice.
RAID 0
Recommended applications for RAID 0:
•Image Editing
• Pre-Press Applications
• Any application requiring high bandwidth
RAID 1
Recommended applications for RAID 1:
• Accounting/Financial
•Payroll
• Any application requiring very high availability
Advantages Disadvantages
Implements a striped disk RAID
Volume, the data is broken down into
blocks and each block is written to a
separate disk drive
I/O performance is greatly improved by
spreading the I/O load across many
channels and drives
No parity calculation overhead is
involved
Not a true RAID because it is not fault-
tolerant
The failure of just one drive will result in
all data in an RAID Volume being lost
Should not be used in mission critical
environments
Advantages Disadvantages
Simplest RAID storage subsystem
design
Can increase read performance by
processing data requests in parallel
since the same data resides on two
different drives
Very high disk overhead - uses only
50% of total capacity
- Product Manual 1
- Copyright 2
- Trademarks 2
- Recommendations 2
- Contents 3
- About This Manual 9
- Architecture 10
- Protocol Support 10
- Key Benefits 10
- Specifications 11
- Compatible Backup Software 12
- Client OS Support 12
- Browser Support 12
- Installing Disk Drives 15
- Connecting to the Network 15
- Connecting the Power 16
- Installing the Software 16
- Setting up the SmartStor 21
- Connecting to PASM 25
- PASM in your Browser 26
- PASM in SmartSYNC 27
- On the Windows PC 32
- On the Macintosh PC 37
- Setting up Windows Printing 40
- Setting up Linux Printing 42
- Setting up Macintosh Printing 45
- Connecting a USB Drive 47
- Windows PC 48
- Linux PC 49
- Macintosh PC 49
- Disconnecting a USB Drive 50
- Chapter 4: One Touch Backup 51
- Creating a Backup Schedule 52
- Performing a One Touch Backup 53
- Viewing Your Backup Files 54
- Restoring Your Backup Files 55
- Chapter 5: SmartSYNC 57
- Closing the SmartSYNC Window 58
- Quitting SmartSYNC 58
- Starting PASM 58
- Connecting a Network Drive 60
- Performing a Backup 61
- Viewing Your Backup Folders 62
- Performing a Restore 63
- Scheduling a Backup 64
- Modifying a Backup Schedule 65
- Deleting a Backup Schedule 65
- Chapter 6: PASM 67
- Choosing a Language 70
- Navigating in PASM 70
- Managing Users and Groups 73
- Deleting a User 74
- Viewing a List of Groups 74
- Creating a Group 75
- Adding Members to a Group 75
- Removing Members from a Group 75
- Deleting a Group 76
- Viewing Quotas 76
- Setting Quotas 76
- Setting up Windows Access 78
- Setting up UNIX/Linux Access 79
- Setting up for FTP Access 81
- Setting up your Print Server 82
- Setting up your DLNA Server 82
- Viewing a List of Folders 83
- Modifying Folder Services 83
- Adding a Folder 84
- Deleting a Folder 84
- Managing RAID Volumes 87
- Creating a RAID Volume 88
- Designating a Spare Drive 89
- Migrating a RAID Volume 89
- Deleting a RAID Volume 90
- Managing Backups 92
- Scheduling a Snapshot Backup 93
- Recovering Snapshot Backups 93
- Setting up NAS Replication 94
- Enabling One Touch Backup 95
- Making Network Settings 96
- Working with Jumbo Frames 97
- Setting up your DDNS Service 98
- Making Management Settings 99
- Viewing the Event Log 100
- Viewing the Email Alert List 101
- Upgrading the System Firmware 101
- Viewing UPS Status 102
- Setting up a UPS 103
- Managing Services 104
- Rebooting the SmartStor 105
- Shutting Down the SmartStor 106
- Restarting the SmartStor 106
- Locating the SmartStor 106
- Viewing System Information 107
- Viewing Enclosure Information 107
- Introduction to RAID 109
- RAID 0 – Stripe 110
- RAID 1 – Mirror 111
- RAID 10 – Mirror / Stripe 113
- Choosing a RAID Level 114
- Spare Drive 115
- Automatic Rebuilding 116
- Partition and Format 116
- RAID Volume Migration 117
- Target Requirements 118
- Chapter 8: Troubleshooting 119
- Checking Disk Status LEDs 120
- Replacing a Failed Disk Drive 121
- Using the Recover Function 123
- Rebuilding the File System 124
- Responding to Events 125
- Multiple Network Connections 130
- Checking Your Email Inbox 132
- Chapter 9: Support 135
- Contacting Technical Support 138
- Europe, Africa, Middle East 139
- Attn: Technical Support 140
- Limited Warranty 141
- Your Responsibilities 142
- Returning Product For Repair 143
- Appendix B: Maintenance 153
- Downloading the Plug-in File 155
- Installing the Plug-in File 155
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