Maximum Disk Shelves per Controller Configuration
When determining how many disk shelves a controller configuration supports, it is
important to remember that each disk shelf chain can support up to six disk shelves, and
some controller configurations are limited to a specific number of total disk shelves.
The following table details the number of supported disk shelf chains per HBA
type.
Table 3 Supported Disk Shelf Chains per HBA
|
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SAS-3 4x4 port
|
2
|
SAS-2 4x4 port
|
2
|
SAS-2 2x4 port
|
1
|
|
As of software release OS8.7.0, 4x4 port SAS-3 HBAs and 4x4 port SAS-2 HBAs can be
used together in the same system. Controllers cannot simultaneously use 2x4 port SAS-2
HBAs and 4x4 port SAS-2 HBAs. Sun Disk Shelves are not supported in any system that
includes a SAS-3 HBA, or a combination of SAS-3 and SAS-2 HBAs.
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 information
on disk compatibility, see the Oracle Systems Handbook.
Table 4 Maximum Disk Shelves per Controller Configuration
|
|
|
|
|
|
ZS7-2 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.
|
ZS7-2 mid-range model
|
16
|
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.
|
ZS5-4
|
48
|
NA
|
4
|
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.
|
ZS5-2
|
16
|
NA
|
2
|
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.
|
ZS4-4
|
36
|
NA
|
4
|
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.
|
ZS3-4
|
36
|
NA
|
4
|
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.
|
ZS3-2
|
16
|
NA
|
2
|
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.
|
7420
|
36
|
6
|
6
|
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.
|
7320
|
6
|
1
|
1
|
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.
|
7120
|
2
|
1
|
NA
|
NA
|
Write-optimized SSDs are not supported in the expansion storage
for the 7120. The disk shelves must be fully populated with 24 HDDs.
You can also connect mixed disk shelf types (DE2 and legacy Sun Disk
Shelves) to the same controllers.
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