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Chapter 7: Technology Background
207
Ranges of Disk Array Expansion
The Windows 2000 and Windows XP (32-bit) operating systems support a 10-
byte LBA format. As a result, these OSes can only recognize 4 billion addresses.
If you create a logical drive using the default 512 B sector size, the logical drive
will be limited to 2 TB of data, even if there is more space available on your disk
drives.
This limitation does not apply to Windows XP (64-bit), 2003 Server, Vista, and
Linux OSes with the 2.6 kernel. Linux OSes with the 2.4 kernel do not support
variable sector sizes, therefore you cannot apply the solution described here to
those OSes.
RAID 0
RAID 50
•
•
RAID 10
•
•
RAID 5
•
RAID 1E
•
•
RAID 1
•
* Decreases the existing redundancy
Important
•
The Target disk array may require more disk drives than the
Source disk array
•
If the Target disk array requires an EVEN number of disk
drives but the Source disk array has an ODD number, ADD a
disk drive as part of the migration process
•
You cannot reduce the number of disk drives in your disk
array, even if the Target disk array requires fewer disk drives
than the Source disk array
•
RAID 1 (mirroring) works with two drives only. Only a single-
drive RAID 0 disk array or a single-drive JBOD can migrate to
RAID 1. Other RAID Levels use too many drives to migrate
•
You cannot migrate a disk array when it is Critical or
performing activities such as Synchronizing, Rebuilding, and
PDM
•
You cannot migrate to RAID 6. You must create a new disk
array and move your data to it
From
To
Increase
Redundancy
Capacity
Performance
Add
Lose
Summary of Contents for VTRAK M610p
Page 1: ...VTRAK M610p Product Manual Version 1 0 ...
Page 30: ...VTrak M610p Product Manual 18 ...
Page 44: ...VTrak M610p Product Manual 32 ...
Page 47: ...Chapter 4 Management with WebPAM PROe 35 Figure 1 The WebPAM PROe log in screen ...
Page 128: ...VTrak M610p Product Manual 116 ...
Page 184: ...VTrak M610p Product Manual 172 Shutdown complete It is now safe to power off the subsystem ...
Page 274: ...VTrak M610p Product Manual 262 ...