DataDirect Networks EF2800, Руководство пользователя

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DataDirect Networks EF2800 FC RAID Storage System User Guide (V 1.0)
C r e a t i n g a n d M a n a g i n g A r r a y s & P a r t i t i o n s
NOTE: Before you create more than one array, you must be sure that
your host operating system supports multiple logical unit numbers (LUNs).
Most operating systems do, or have an option you can enable to support
multiple LUNs. If your operating system does not support multiple LUNs,
the host will only be able to see one array at LUN 0.
Before you create an array, you must decide whether you want to
partition the array. You can create an array one of two ways:
• As a single-partition array : an array that stores all data in a single
partition and is accessed by a single LUN.
• As a multiple-partition array : an array that can have one or more
partitions, with each partition assigned its own LUN.
For more information about partitions, see section D.3.1 ,
"Understanding Partitions" on page 235 .
D.1.1 Creating a Single-Partition Array
You can create an array that has just one partition. Once you create a
single-partition array, you cannot add more partitions. Single-partition
arrays work well in environments that need one large, fault-tolerant
storage space for data on one server. A large database accessed by
users on a single server that is used only for that application is an
example.
To create a single-partition array:
1.
From the System Menu, select
Add an Array
and press <Enter>.
The Enter Array Name screen displays
(Figure 87)
.
RAID 3 3 16
RAID 4 3 16
RAID 5 3 16
RAID 50 6 32
Figure 86. Drive requirements by RAID level
RAID level Min. # of Drives Max. # of drives