Sun Microsystems A3500 manual 2x71x8 Phase a

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2x71x8

Phase A

Phase B

FIGURE 2-23Power Connections to Avoid (Different Phases)

2x71x8

Same phase AC

FIGURE 2-24Power Connections to Avoid (Same Phase)

2.5.4Power Connections

The power connections for 2x7 cabinet are the same as those in the standard 2x7 expansion cabinet (FIGURE 2-18).

2-26Sun StorEdge A3500 Hardware Configuration Guide • September 1998

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Contents Sun StorEdge A3500 Hardware Configuration Guide Page Contents Iv Sun StorEdge A3500 Hardware Configuration Guide September Using Unix Commands PrefaceTable P-1Typographic Conventions Typographic ConventionsShell Prompts Table P-2Shell PromptsSun Welcomes Your Comments Related DocumentationSun Documentation on the Web Table P-3Related DocumentationPage Host Connections Configuration Guidelines Supported Host Configurations Single HostDaisy Chain Independent Controller 4Two-Node Multi-Initiator Configuration Multi-InitiatorUltra 2 Host System-Power Connection Requirement 5AC Power Sequencers-Ultra 2 Power ConnectorGain access to the AC power sequencers StorEdge A3500 Configurations StorEdge D1000 Disk Array Settings Rear1 1x2 Configuration Option SwitchModule ID Switch 1x2 Module ID Switch SettingsScsi Jumper Cables and Terminators 2 1x5 Configuration 51x5 Option Switch Settings for StorEdge D1000 Disk Array11x5 Module ID Switch Settings 3 2x7 Configuration 82x7 Option Switch Settings for StorEdge D1000 Disk Array22x7 Module ID Switch Settings 4 3x15 Configuration 33x15 Module ID Switch Settings43x15 Module ID Switch Settings 10Sun StorEdge A3500 Hardware Configuration Guide September Cable Lengths 1x2 CablingScsi Cabling 5Controller Module aScsi Connections 11One A3000 Controller Module and Two D1000 Disk Arrays ScsiPower Connections 1x5 Cabling 6Controller Module aDifferential Scsi terminator Scsi jumper cable Rear view R6R4 Front sequencer R1&R2 Rear sequencer L1&L2 2x7 Cabling 7Controller Module a8Controller Module B Controller Module a Controller Module B Front Sequencer Rear 3x15 Cabling Controller Module a 10Controller Module B11Controller Module C Scsi Connections for Controller Module a 3x15 Controller Module aScsi Connections for Controller Module B 203x15 Controller Module BScsi Connections for Controller Module C 213x15 Controller Module CConnecting to AC Power Source Power Sequencer Interconnections2x71x8 Phase a Power connections for the 1x8 cabinet are shown in Figure 28Sun StorEdge A3500 Hardware Configuration Guide September