Areca ARC-1880 Series User Manual page 25

HARDWARE INSTALLATION
In the backplane solution, SAS/SATA drives are directly connected
to 6Gb/s SAS system backplane or through an expander board.
The number of SAS/SATA drives is limited to the number of slots
available on the backplane. Some backplanes support daisy chain
expansion to the next backplanes. The 6Gb/s SAS RAID controller
can support daisy-chain up to 8 enclosures. The maximum drive
no. is 128 devices through 8 enclosures. The following figure shows
how to connect the external Min SAS cable from the 6Gb/s SAS
RAID controller that has external connectors to the external drive
boxes or drive enclosures.
Figure 2-6, External connector to a drive box or drive enclosure
The following table is the max no. of 6Gb/s SAS RAID controller
supported:
Disks/Enclosure
Max No.
Note:
1. The maximum no. is 32 disk drives included in a single
RAID set.
Expander
32 8
Disks/Controller
128
Volume
128
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