Areca ARC-1130 User Manual

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The 32-bit file systems have a maximum limitation of 2 TB per volume 

set. 64-bit versions remove this limitation. so, if you are building large 

warehouses, you should consider 64-bit versions.

An array is a logical disk comprised of multiple physical hard disks. 

The number of hard disks in an array is dictated by the type of the 

array and the number of spares that may be assigned to it. (Arrays 

are also sometimes referred to as containers). Furthermore, whether 

an array can be built using part of the space on a disk (as opposed to 

being forced to use the whole disk) depends upon the implementation. 

Arrays are typically used to provide data redundancy and/or enhanced 

I/O performance.

Acronym for “AT Bus Attachment” - a standard interface to IDE hard 

disks. Western Digital’s IDE disk interface was standardized by ANSI to 

form the ATA specification using a 16-bit ISA bus.

SATA drives perform automatic defect re-assignment for both read and 

write errors. Writes are always completed - if a location to be writ-

ten is found to be defective, the drive will automatically relocate that 

write command to a new location and map out the defective location. 

If there is a recoverable read error, the correct data will be transferred 

to the host and that location will be tested by the drive to be certain 

the location is not defective - if it is found to have a defect, it will be 

automatically relocated to a new location and the defective location 

mapped out. In the event of an unrecoverable read error, the error will 

be reported to the host and the location flagged as potentially defec-

tive. A subsequent write to that location will initiate a sector test and 

relocation should that location have a defect.