EonStor / EonStor DS S12/S16/S24 Series
offering high redundancy.
rthest JBOD. Another expansion link connects to the farthest
JBOD from the opposite direction and then to the nearest JBOD.
A, and the other
controls Domain B. In a fault-tolerant topology, the SAS external links always
The SAS Domains can be identified by the expanders’ locations, i.e., upper
r slot
Slot A
r contro
roller
B/Slot B).
On the RAID system, each RAID controller can be considered as managing
eparate SAS Domain. With the help of the port s
hanism on
MUX
SAS Dom
applie
drives
are used in a dual-controller JBOD.
One expansion link connects JBODs from RAID to the nearest JBOD, and
then to the fa
Each expander controller on the SAS JBOD controls a “
SAS Domain
” that
connects one of the alternative interfaces on all of the disk drives in the
enclosure. For example, one expander unit controls Domain
connect to the SAS ports on the same SAS Domain.
controlle
(Controller A/
) or the lowe
ller slot (Cont
a s
elector mec
the
boards, the idea of
ain
s even when SATA
110
