Table 2-4 Maximum Disk Shelves per Controller Configuration
Controller
Max. Shelves
Max. 2x4 Port
SAS-2 HBA
Max. 4x4 Port
SAS-2 HBA
Max. 4x4 Port
SAS-3 HBA
Guidelines
Oracle ZFS
Storage ZS9-2
high-end model
48
NA
NA
4
Disk shelves can
include 24x HDD/
SSD, or combine
20x HDD/SSD
plus 4x write-
optimized and/or
read-optimized
flash accelerators
(SSDs). Total
number of chains
is eight. Any
combination of
disk-only and
write- or read-
optimized shelves
may be combined
within the chain
in any order.
Oracle ZFS
Storage ZS9-2
mid-range model
24
NA
NA
2
Disk shelves can
include 24x HDD/
SSD, or combine
20x HDD/SSD
plus 4x write-
optimized and/or
read-optimized
flash accelerators
(SSDs). Total
number of chains
is four. Any
combination of
disk-only and
write- or read-
optimized shelves
may be combined
within the chain
in any order.
Chapter 2
Maximum Disk Shelves per Controller Configuration
2-9