How to Add a Disk Shelf Cache Device
Connecting to Attached Storage
Disk shelves can be added to standalone or clustered storage controllers without powering down
the appliance or loss of service to clients. After connecting expansion storage, verify that you
have redundant paths to each disk shelf.
To connect one or more disk shelves, use the diagrams in the Oracle ZFS Storage Appliance
Cabling Guide.
Maximum Number of Disk Shelves per Controller Configuration
The following table shows the maximum number of disk shelves supported per controller
configuration.
Note - Controllers cannot use 2X4 port SAS-2 HBAs and 4X4 port SAS-2 HBAs at the same
time. For controllers that support using DE2-24 and Sun Disk Shelves together, the controller
must use 4X4 port SAS-2 HBAs, which are only supported with software version 2013.1.0 and
later.
TABLE 49
Maximum Number of Disk Shelves per Controller
Controller Max. Shelves Max. 2X4 port SAS-2 HBA Max. 4X4 port SAS-2 HBA
ZS4-4 36 N/A 4
ZS3-4 36 N/A 4
ZS3-2 16 N/A 2
7420 36 6 6
7320 6 1 1
7120 2 1 N/A
266 Oracle ZFS Storage Appliance Customer Service Manual • February 2016
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