Connecting DS60 shelves
The cabling diagrams in this section show the maximum configurations for the
DD6300, DD6800, and DD9300 systems. Not all systems will have all the disk shelves
shown in the diagrams.
Add shelf-to-shelf cables between shelves in a loop and to the controller as shown in
the diagrams.
1. The recommended cabling for HA utilizes a maximum of three loops.
2. There are no specific placement or cabling requirements for SSD shelves. These
shelves can be installed and cabled the same way as standard ES30 shelves.
3. The SSD shelf counts towards the total number of shelves connected to the
system.
4. Data Domain recommends installing the SSD shelf in the V1.1 positon, but if that is
not possible, the shelf can be placed in a different location in the rack so long as
cables of sufficient length are available.
Note
V1.1 is recommended for better performance because this will the 1
st
hop where
data will be written. If the SSD shelf is connected to the last enclosure in a chain,
then each read/write request has to go through many hops, which introduces
latency issues when compared to when the SSD shelf is on the 1
st
shelf of a chain.
5. Use the cable management assembly to support and organize all cables.
DS30 cable information
When connecting DS60 shelves, the same cable type connects a controller to a DS60
shelf, or a DS60 shelf to a DS60 shelf.
Table 41 DS60 cables
HD-mini-SAS connector on controller and enclosure
Cable model code
Part number
Cable length
XC-DS60-SAS-3M
038-004-380-01
3 m (118 in)
XC-DS60-SAS-4M
038-000-212-00
4 m (158 in)
XC-DS60-SAS-5M
038-000-214-00
5 m (196 in)
Select the appropriate configuration from the following list, and connect the disk
shelves to the Data Domain controller.
l
l
l
on page 61
l
l
DD6800 and with HA and DD Cloud Tier
on page 64
l
DD9300 with DD Cloud Tier or HA and DD Cloud Tier
on page 65
l
Connect Cables and Power on
Connecting DS60 shelves
57
