IBM Netfinity ServeRAID-3H, Инструкция по установке и эксплуатации, Страница: 17 / 212

The following illustration shows data arranged in an array of three
hard disk drives defined as one RAID level-0 logical drive. Notice
that the data is striped across all the drives in the array, but no
copies of the data or parity information is stored.
A hard disk failure within the array results in loss of data in the
logical drive assigned RAID level-0, but
only in that logical drive. If
you have logical drives assigned RAID level-1 or level-5 in the same
array, they will not lose data.
Note: The ServeRAID controller automatically assigns RAID level-0
to all logical drives in an array containing only one hard disk
drive.
When you replace a failed drive, the ServeRAID controller can
rebuild all the RAID level-1 and RAID level-5 logical drives
automatically onto the replacement hard disk drive. However, any
data stored in a failed RAID level-0 logical drive is lost.
Though the risk of data loss is present, you might want to assign
RAID level-0 to one of the logical drives to take advantage of the
speed offered with this RAID level. You could use this logical drive
to enter data that you back up each day and for which safety is not
of primary importance, that is, data that you can re-create easily.
You also might want to use a RAID level-0 logical drive when the
work you are doing requires maximum capacity.
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Stripe 1
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Stripe 2
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Stripe 3
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Chapter 1. Getting Started
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