Drive tray cabling topologies for the E2700 controller-drive
trays
This section provides examples of drive tray cabling topologies for the E2700 controller-drive trays.
The E2700 controller-drive tray models are: the E2712, the E2724 and the E2760. The total number
of drive slots in the storage array, including the drive slots in the controller-drive tray and those in the
drive trays, must not exceed 192.
Note:
Simplex systems do not provide redundant connections to drive trays. If a connection or an
environmental services module (ESM) fails, all drive trays that connect to the controller-drive tray
indirectly through the failed connection or drive tray becomes inaccessible.
Drive channel redundancy for the E2700 controller-drive trays
Learn the physical features of the E2700 controller trays that support drive cabling to minimize the
risk of losing access to data.
Controller-drive trays
Each controller in an E5712, E2724, or E2760 controller-drive tray has two drive ports. On each
controller, the two drive ports connect to the same drive channel (SAS domain). When a controller-
drive tray has two controllers, the drive channel on controller A and the drive channel on controller B
form a redundant pair.
Note:
To maintain data access in the event of the failure of a controller, an ESM/IOM, or a drive
channel, each drive tray must have a direct connection or an indirect connection (through other
drive trays) to at least one drive port on each controller in a dual-controller configuration.
The following figure shows the drive ports on a dual-controller configuration.
Redundant path pairs on the E2712 and E2724 controller-drive trays
49 00 6-0 1
1
2
1
2
AC
DC
!
AC
DC
!
90 |
Summary of Contents for StorNext QD7000
Page 1: ...Hardware Cabling Guide StorNext QD7000 Firmware 8 40 xx xx 6 68683 01 Rev A...
Page 7: ...Preface Hardware Cabling Guide vii...
Page 10: ...E Series Hardware Cabling Guide December 2017 215 11792_B0 doccomments netapp com...
Page 11: ......
Page 90: ...One E5660 controller drive tray and one DE6600 drive tray Drive shelf or drive tray cabling 81...
Page 106: ...One E2760 controller drive tray and one drive tray Drive shelf or drive tray cabling 97...