Features Of On-Board Raid (Lsi Logic Megaraid Sas Pci Express Romb) - NEC BladeServer Express5800 Series User Manual

4-34 Configuring Your Server
Features of On-board RAID
(LSI Logic MegaRAID    SAS PCI EXPRESS    ROMB)
This section describes the features of the on-board RAID (LSI Logic MegaRAID SAS PCI
EXPRESS ROMB).
Rebuild
If a HDD is defected, the rebuild feature can recover the data in the defected HDD. The rebuild can
be applied to redundant virtual disks in the RAID1 or RAID5 level.
Manual Rebuild
The manual rebuild can be performed by using MegaRAID Storage Manager (called MSM
hereafter), the management utility of the on-board RAID (LSI Logic MegaRAID SAS PCI
EXPRESS ROMB). Select a HDD and start the rebuild manually.
Auto Rebuild
The on-board RAID (LSI Logic MegaRAID SAS PCI EXPRESS ROMB) can automatically
start the rebuild without use of any utility such as MSM.
The auto rebuild includes two types as follows:
Standby rebuild
Automatic rebuild by using hot-spare disks. In the configuration including hot-spare disks,
the rebuild is performed automatically if a HDD assigned to a virtual disk is defected.