Supermicro CSE-847E16-RJBOD1 Manuale Utente Scaricare il pdf (Pagina 113)

F-11

Appendix F: SAS-846EL Backplane Specieations

Single Host Bus Adapter

In a single host bus conguration, the

backplane connects to one Host Bus

Adapter (HBA).

PRI_J0

PRI_J1

PRI_J2

SEC_J0 SEC_J1

SEC_J2

J17

WWN

SAS HBA

Port A

Expander 1

Port B

Expander 2

Figure F-6: Single HBA

The SAS-846EL2 backplane has two expanders which allow effective failover.

F-10 Failover

PRI_J0

PRI_J1

PRI_J2

SEC_J0 SEC_J1

SEC_J2

J17

WWN

SAS HBA

Port A

Expander 1

Port B

Expander 2

Single Host Bus Adapter

Failover

If the expander or data path in Port A

fails, the system automatically switches

to Port B.

Figure F-7: Single HBA Failover

PRI_J0

PRI_J1

PRI_J2

SEC_J0 SEC_J1

SEC_J2

J17

WWN

SAS HBA

Port A

Expander 1

Port B

Expander 2

SAS HBA

Dual Host Bus Adapter

In a Dual Host Bus Conguration, the

backplane connects to two Host Bus

Adapters (HBA).

Figure F-8: Dual HBA

PRI_J0

PRI_J1

PRI_J2

SEC_J0 SEC_J1

SEC_J2

J17

WWN

SAS HBA

Port A

Expander 1

Port B

Expander 2

SAS HBA

Dual Host Bus Adapter

Failover

If the expander or data path in Port A

fails, the system automatically switches

to Port B. This maintains a full connec-

tion to all drives.

Figure F-9: Dual HBA Failover

1 2 ... 108 109 110 111 112 113 114 115 116 117 118 ... 127 128

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