Hardware RAID - A hardware
RAID uses the configuration software, which is provided by
the RAID manufacturer, to group one or more physical hard
drives into what appears to the operating system as a single
hard drive. This is commonly referred to as a virtual
disk or logical unit. When you create the virtual
hard drive, you also select a RAID level. For this type of
configuration, a server can be configured to use RAID-0 (also
known as striped), RAID-1 (also known as mirrored), RAID-5
(also known as striped with parity), and in some servers,
RAID-0+1 (also known as a mirrored stripe). Hardware
RAIDs have better overall server performance.
Software RAID - A software
RAID uses the configuration software provided with the operating
system to create a RAID-0, RAID-1, or RAID-5 volume on dynamic
hard drives. Software RAIDs have lower performance than hardware
RAIDs. One reason software RAIDs are used is because they
are inexpensive and simple to configure. There are also no
hardware requirements other than requiring multiple hard drives.
ADR Data Recovery specializes in recovering
data when RAID controllers fail, volumes become inaccessible,
containers go offline, or when arrays become degraded. Please
do not force a rebuild of your RAID array if multiple hard
drives have failed or are offline. Forcing it will severely
reduce the chances of successful data recovery of your files.
Our RAID data recovery engineers are equipped with the latest
technologies--including our own unique, proprietary methods--to
restore your data.
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