Dell manual Disk Roaming, Disk Migration, Perc H700 and H800 Security Key and RAID Management

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4.7Disk Roaming

The PERC H700 and H800 cards support moving physical disks from one cable connection or backplane slot to another on the same controller. The controller automatically recognizes the relocated physical disks and logically places them in the proper virtual disks that are part of the disk group. Disk roaming can be performed only when the system is turned off. Disk roaming should not be performed during RAID level migration (RLM) or online capacity expansion (OCE). This causes loss of the virtual disk.

4.8Disk Migration

The PERC H700 and H800 cards support migration of virtual disks from one controller to another without taking the target controller offline. However, the source controller must be offline prior to performing the disk migration. The controller can import RAID virtual disks in optimal, degraded, or partially degraded states. A virtual disk cannot be imported if it is in an offline state.

Disks cannot be migrated back to previous PERC RAID controllers. When a controller detects a physical disk with an existing configuration, it flags the physical disk as foreign, and it generates an alert indicating that a foreign disk was detected. Disk roaming should not be used during RLM or online capacity expansion OCE as it can cause loss of the virtual disk.

Virtual disks that are created on the PERC 6 and H200 family of controllers can be migrated to the PERC H700 and H800 controllers without risking data or configuration loss. Migrating virtual disks from the PERC H700 and H800 cards to PERC 6 or PERC H200 is not supported.

During the discharge phase of a learn cycle, the PERC H700 or H800 battery charger is disabled and remains disabled until the battery is discharged. After the battery is discharged, the charger is re- enabled.

4.9PERC H700 and H800 Security Key and RAID Management

4.9.1PERC H700 and H800 Security Key Implementation

The Dell PowerEdge RAID Controller (PERC) H700 and H800 cards support encryption of data on the drives when using Dell qualified self-encrypting drives (SEDs). This feature provides protection to the data at rest in the event of theft or loss of drives. There is one security key per controller which resides in the controller memory and it can be managed by the user (local key management). The security key is used by the controller to lock and unlock access to encryption-capable physical drives. In order to take advantage of this feature, you need to create a security key on your PERC H700 or PERC H800 controller and have Dell qualified SEDs.

4.9.2Configuring and Managing Secured RAID

Dell OpenManage storage management applications enable you to create and manage a security key, manage and configure the RAID system, create and manage multiple disk groups, control and monitor multiple RAID systems, and provide online maintenance. The management applications for PERC

H700 and H800 include:

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Dell OpenManage Storage Management BIOS Configuration Utility

DELL PERC H700 and H800 Technical Guide 19