Dell POWEREDGE RADI H700 Technical Manual

Also see for PERC H700: User guide Installation and Removal Instructions

Dell POWEREDGE RADI H700 Technical Manual Manual pdf 19 page image

DellDELL PERC H700 and H800 Technical Guide 194.7 Disk RoamingThe PERC H700 and H800 cards support moving physical disks from one cable connection orbackplane slot to another on the same controller. The controller automatically recognizes therelocated physical disks and logically places them in the proper virtual disks that are part of the diskgroup. Disk roaming can be performed only when the system is turned off. Disk roaming should notbe performed during RAID level migration (RLM) or online capacity expansion (OCE). This causes lossof the virtual disk.4.8 Disk MigrationThe PERC H700 and H800 cards support migration of virtual disks from one controller to anotherwithout taking the target controller offline. However, the source controller must be offline prior toperforming the disk migration. The controller can import RAID virtual disks in optimal, degraded, orpartially 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 aphysical disk with an existing configuration, it flags the physical disk as foreign, and it generates analert indicating that a foreign disk was detected. Disk roaming should not be used during RLM oronline 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 thePERC H700 and H800 controllers without risking data or configuration loss. Migrating virtual disksfrom 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 andremains disabled until the battery is discharged. After the battery is discharged, the charger is re-enabled.4.9 PERC H700 and H800 Security Key and RAID Management4.9.1 PERC H700 and H800 Security Key ImplementationThe Dell PowerEdge RAID Controller (PERC) H700 and H800 cards support encryption of data on thedrives when using Dell qualified self-encrypting drives (SEDs). This feature provides protection to thedata at rest in the event of theft or loss of drives. There is one security key per controller whichresides in the controller memory and it can be managed by the user (local key management). Thesecurity 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 orPERC H800 controller and have Dell qualified SEDs.4.9.2 Configuring and Managing Secured RAIDDell 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 monitormultiple RAID systems, and provide online maintenance. The management applications for PERCH700 and H800 include:• Dell OpenManage Storage Management• BIOS Configuration Utility