Table 2. FastPath Eligibility Across Supported RAID Levels

 

RAID 0

RAID 1

RAID 5

RAID 6

 

 

 

 

 

Read

Yes

Yes

Yes

Yes

 

 

(Optimal and

(Optimal and Degraded)

(Optimal and Degraded)

 

 

Degraded)

 

 

Write

Yes

No

No

No

In addition, FastPath-capable virtual disks are characterized by the following:

•The presence of CacheCade virtual disks on a controller disables the FastPath capability of all eligible HDD virtual disks. Eligible SSD virtual disks are still FastPath-capable.

•Secured virtual disks are not FastPath-capable.

•The Physical Disk Power Management feature is not applicable to FastPath-capable virtual disks.

•The addition or removal of a redundant path does not affect the FastPath-capability of virtual disks.

Virtual Disk Migration

The PERC H710, H710P, and H810 cards support migration of virtual disks from one controller to another without taking the target controller offline. The controller can import RAID virtual disks in optimal, degraded, or partially degraded states. You cannot import a virtual disk that is in an offline state. Disk migration pointers:

•Supports migration of VDs from PERC H700 and H800 to PERC H710P and H810

•Supports migration of volumes created within H710, H710P, or H810

•Supports migration of volumes created on H310 to H710, H710P, or H810

•Does not support migration from H700 or H800 to H310

•Does not support migration from H710, H710P, or H810 to H310

•Does not support backward migration from H310, H710, H710P, H810 to H800 and H700

NOTE: The source controller must be offline prior to performing the disk migration.

NOTE: Disks cannot be migrated to older revisions or generations of the PERC cards.

NOTE: Non-RAID disks are supported only on the PERC H310 controller. Migration to any other PERC product is not supported.

NOTE: Importing secured virtual disks is supported as long as the appropriate key (LKM) is supplied or configured.

When a controller detects a physical disk with an existing configuration, it flags the physical disk as foreign, and generates an alert indicating that a foreign disk was detected.

CAUTION: Do not attempt disk roaming during RLM or OCE. This causes loss of the virtual disk.

Migrating Virtual Disks

To migrate virtual disks from PERC H700 or H800 to PERC H710, H710P, or H810:

1.Turn off the system.

2.Move the appropriate physical disks from the PERC H700 or H800 card to the PERC H710, H710P, or H810 card.

NOTE: If you are replacing your PERC H700 or H800 with a PERC H710, H710P, or H810 card, see the Owner’s Manual of your system at support.dell.com/manuals.

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Dell H710P, H310, H810 manual Virtual Disk Migration, Migrating Virtual Disks, Read, Write
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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.
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