RAID N8103-134, Setup Manual

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4. Provide settings required for creating Logical Drive.
Item Default Available value
Disk Array ID x can not change
Capacity (Free) xxxxxx GB Do not change.
Logical Drive Name Alphanumeric and symbol characters
RAID Level RAID0 RAID0/RAID1/RAID5/RAID10/RAID50
Capacity xxxxxx GB Numeral
Stripe Size 128KB 64KB/128KB/256KB/512KB/1024KB
Sector Size 512Byte can not change
Write Cache Policy Write Back Write Back/Write Through
Read Cache Policy Read Ahead No Cache/Read Cache/ Read Ahead
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Disk Array ID
Indicates Disk Array Number (View only).
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Capacity (Free)
Indicates the maximum capacity allowable for the selected HDD and RAID level (view only).
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Logical Drive Name
Specify the desired name for Logical Drive you are going to create. Alphanumeric and symbol
characters can be used. To enter a numeric character, always use the standard keyboard.
Entering a numeric character from the numeric keyboard will not be accepted.
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RAID Level
Set the RAID level according to your requirements.
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Capacity
Specify the Logical Drive capacity. Enter the value not exceeding the "Capacity (Free)". To
enter a numeric character, always use the standard keyboard. Entering a numeric character
from the numeric keyboard will not be accepted. If no value is entered(selected default 0 value),
the maximum allowable capacity is set. Minimum size is 1GB.
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Stripe Size
Specify the data size to be divided for striping. Specifying the larger data size increases the
speed to read/write sequential data. It is recommended to specify the stripe size of 128KB.
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Sector Size
Specify the sector size of the Disk Array (view only).
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Write Cache Policy
Specify the write cache mode of the RAID Controller.
Cache Mode Description
Write Back
(default) This asynchronous control method writes data into cache memory of
the controller, then writes it onto HDD based on the data stored in
cache memory. The access performance is improved compared with
the Write Through mode. However, if an accident such as
instantaneous power failure occurs, the data may be lost.
Write Through This control method writes data into both cache memory and HDD
simultaneously. The access performance is not good as in Write Back
mode.
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Read Cache Policy
Cache Mode Description
No Cache The read cache is disabled.
Read cache The read cache is enabled.
Read Ahead
(default) The read cache and the read-ahead feature are enabled.
Read-ahead anticipates the next read and performs it before the
request is made. Can increase read performance.