Features
27
Virtual disks (general) Up to eight virtual disks are supported.
The PERC S100 adapter and PERC S300 adapter allows:
• Creating virtual disks of different RAID levels on a single
controller.
• Creating different RAID level virtual disks on the same
physical disk, to adapt each virtual disk to the I/O that it
processes.
• Building different virtual disks with different characteristics
for different applications.
The PERC S100 adapter and PERC S300 adapter does not
allow:
• Creating a virtual disk from a mix of different type physical
disks. For example, a RAID 10 virtual disk cannot be created
from two SATA-II HDD physical disks, a SAS HDD physical
disk, and a SSD physical disk. All of the physical disks must
be the same interface (SAS or SATA) and 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 the operating system being rebooted.
Table 3-1. Features of the PERC S100 controller and PERC S300 controller
(continued)
RAID Controller Feature Description
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