Dell PowerEdge RAID Controller S110 - Manual (Page 17)

Features 15
The PERC S110 adapter does not allow:
• Creating a virtual disk from a mix of different type of physical disks. For
example, a RAID 10 virtual disk cannot be created from two SATA-II HDD
physical disks and a SATA SSD physical disk. All the physical disks must be
of the same drive type (HDD or SSD).
• Selecting a physical disk as a dedicated hot spare if the physical disk is a
different type from the physical disk or disks.
A virtual disk refers to data storage created by the controller from one or more
physical disks. Although a virtual disk can be created from several physical
disks, it is seen by the operating system as a single disk.
The capacity of a virtual disk can be expanded online for any RAID level,
without rebooting the operating system.
Virtual Disk Migration
The PERC S110 controller supports automatic virtual disk migration from
one PERC S100 or PERC S110 adapter to another PERC S110 adapter.
CAUTION: The virtual disk is lost if you perform a virtual disk migration during an
OCE/Reconfigure.
NOTE: Backup virtual disk data before migrating virtual disks.
NOTE: Ensure that all physical disks that are part of the virtual disk are migrated.
Virtual disks in optimal and degraded state will be automatically migrated. A virtual
disk in an offline state should not be migrated.
NOTE: A bootable virtual disk cannot be migrated between dissimilar system
models.
Migrating a Virtual Disk
1 Turn-off the system that contains the source controller.
2 Turn-off the target system if the system does not support hot-insert of
physical disks.
3 Move the appropriate physical disks from the source controller to the
target controller in the target system. Physical disks do not have to be
inserted into the same slots in the target system.
4 If the target system was turned-off, turn-on the system.
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