Oracle ZFS Installation Manual page 24

Maximum Disk Shelves per Controller Configuration
Controller Max.
ZS5-2
ZS4-4
ZS3-4
ZS3-2
7420
7320
24 Oracle ZFS Storage Appliance Installation Guide, Release OS8.8.x • August 2021
Max. Max.
Shelves 2x4 Port 4x4 Port
SAS-2 SAS-2
HBA HBA
16 NA 2
36 NA 4
36 NA 4
16 NA 2
36 6 6
6 1 1
Max. Guidelines
4x4 Port
SAS-3
HBA
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.
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-
optimized shelves can be combined within the chain in
any order.
NA Disk shelves can include 24x HDD, or combine 20x
HDD plus 4x write-optimized flash accelerators (SSDs).
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.
2 Disk shelves can include 24x HDD, or combine 20x
HDD plus 4x write-optimized flash accelerators (SSDs).
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.
NA Disk shelves can include 24x HDD, or combine 20x
HDD plus 4x write-optimized flash accelerators (SSDs).
Total number of chains is six with 2X4 port SAS-2
HBAs, and 12 with 4X4 port SAS-2 HBAs. 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.
NA Any combination of disk-only and write-optimized
shelves may be combined within the chain in any order.
The cabling configurations are unchanged. 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.