Maximum Disk Shelves per Controller Configuration
The following table shows the maximum number of HBAs per controller, and the maximum
number of disk shelves supported per controller configuration. Both standalone and clustered
controllers support the same maximum number of disk shelves. For controllers that support
using DE2-24 and Sun Disk Shelves together, the controller must use 4x4 port SAS-2 HBAs,
which are supported with software release 2013.1.0 and later. For information on disk
compatibility, see the
.
TABLE 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
ZS5-4
48
NA
4
4
Disk shelves can include 24x HDD, or combine 20x
HDD plus 4x SSD. SSDs provide write-optimized or
read-optimized capability. 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.
ZS5-2
16
NA
2
2
Disk shelves can include 24x HDD, or combine 20x
HDD plus 4x SSD. SSDs provide write-optimized or
read-optimized capability. 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.
ZS4-4
36
NA
4
NA
Disk shelves can include 24x HDD, or combine 20x
HDD plus 4x SSD. SSDs provide write-optimized
capability. Total number of chains is eight. Any
combination of disk-only and write-optimized shelves
can be combined within the chain in any order.
ZS3-4
36
NA
4
NA
Disk shelves can include 24x HDD, or combine 20x
HDD plus 4x SSD. SSDs provide write-optimized
capability. Total number of chains is eight. Any
combination of disk-only and write-optimized shelves
can be combined within the chain in any order. You can
also connect mixed disk shelf types (DE2 and legacy Sun
Disk Shelves) to the same controllers, but each chain
must contain only the same disk shelf type. Directly
connecting different disk shelf types is not supported.
ZS3-2
16
NA
2
NA
Disk shelves can include 24x HDD, or combine 20x
HDD plus 4x SSD. SSDs provide write-optimized
capability. Total number of chains is four. Any
combination of disk-only and write-optimized shelves
can be combined within the chain in any order. You can
also connect mixed disk shelf types (DE2 and legacy Sun
Disk Shelves) to the same controllers, but each chain
must contain only the same disk shelf type. Directly
connecting different disk shelf types is not supported.
7420
36
6
6
NA
Disk shelves can include 24x HDD, or combine 20x
HDD plus 4x SSD. SSDs provide write-optimized
18
Oracle ZFS Storage Appliance Installation Guide • December 2016
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