Table 2-1. RAID Level Migration

Source

Target

Number of

Number of

Capacity

Description

RAID

RAID

Physical

Physical

Expansion

 

Level

Level

Disks

Disks (End)

Possible

 

 

 

(Beginning)

 

 

 

 

 

 

 

 

 

RAID

RAID

1

2 or more

Yes

Increases capacity by adding disks

0

0

 

 

 

 

 

 

 

 

 

 

RAID

RAID

1

2

No

Converts non-redundant virtual disk into

0

1

 

 

 

a mirrored virtual disk by adding one disk.

 

 

 

 

 

 

RAID

RAID

1 or more

3 or more

Yes

At least one disk needs to be added for

0

5

 

 

 

distributed parity data.

 

 

 

 

 

 

RAID

RAID

1 or more

4 or more

Yes

At least two disks need to be added for

0

6

 

 

 

dual distributed parity data.

 

 

 

 

 

 

RAID

RAID

2

2 or more

Yes

Removes redundancy while increasing

1

0

 

 

 

capacity.

 

 

 

 

 

 

RAID

RAID

2

3 or more

Yes

Maintains redundancy while doubling

1

5

 

 

 

capacity.

 

 

 

 

 

 

RAID

RAID

2

4 or more

Yes

Two disks required to be added for

1

6

 

 

 

distributed parity data.

 

 

 

 

 

 

RAID

RAID

3 or more

3 or more

Yes

Converts to a non-redundant virtual disk

5

0

 

 

 

and reclaims disk space used for

 

 

 

 

 

distributed parity data.

 

 

 

 

 

 

RAID

RAID

3 or more

4 or more

Yes

Increases capacity by adding disks

5

5

 

 

 

 

 

 

 

 

 

 

RAID

RAID

3 or more

4 or more

Yes

At least one disk needs to be added for

5

6

 

 

 

dual distributed parity data.

 

 

 

 

 

 

RAID

RAID

4 or more

4 or more

Yes

Converts to a non-redundant virtual disk

6

0

 

 

 

and reclaims disk space used for

 

 

 

 

 

distributed parity data.

 

 

 

 

 

 

RAID

RAID

4 or more

4 or more

Yes

Removes one set of parity data and

6

5

 

 

 

reclaims disk space used for it.

 

 

 

 

 

 

RAID

RAID

4 or more

5 or more

Yes

Increases capacity by adding disks

6

6

 

 

 

 

NOTE: The total number of physical disks in a disk group cannot exceed 32. You cannot perform RAID level migration and expansion on RAID levels 10, 50, and 60.

26

Features

Page 26
Image 26
Dell H710P, H310, H810 manual RAID Level Migration

H310, H710, H710P, H810 specifications

Dell offers a range of storage controller technologies, notably the H810, H710, H710P, and H310, which cater to different enterprise needs. These controllers are designed to support various storage configurations, enhancing overall system performance and reliability.

The Dell H810 is a high-performance PCIe 3.0 RAID controller that supports up to eight internal drives and is particularly suited for demanding workloads. It features advanced RAID levels including RAID 0, 1, 5, 6, 10, 50, and 60, providing flexibility for various data protection strategies. The H810 also supports up to 32TB of storage capacity, making it suitable for environments that require substantial data management capabilities.

The H710 is another powerful RAID controller, widely recognized for its balance of performance and cost-efficiency. It features 1GB of cache memory, which aids in accelerating read and write operations. The H710 supports the same RAID levels as the H810 and allows for up to 512MB of non-volatile memory. This ensures data integrity even in the event of a power failure, making it reliable for critical applications.

The H710P is an enhanced version of the H710, with a significant upgrade in its cache capabilities. It offers 2GB of battery-backed cache memory, further enhancing data processing speeds and improving responsiveness. The H710P is ideal for intensive workloads and virtualization, where rapid access to data is essential. This controller also includes features such as RAID storage pooling, intelligent data tiering, and support for multiple virtual disks.

Finally, the H310 is a cost-effective option for small to medium-sized businesses or those with less demanding storage requirements. It offers similar RAID support as the higher-end controllers but operates with a simpler architecture. The H310 features 512MB of cache, providing sufficient performance for regular workloads without the additional complexities of more advanced controllers.

In summary, Dell's H810, H710, H710P, and H310 storage controllers each serve distinct purposes, providing various features, technologies, and performance characteristics tailored to different business needs. From high-capacity storage solutions to user-friendly setups, Dell’s offerings ensure that organizations can efficiently manage their data storage requirements.