Supermicro CSE-846A-R1200B Uživatelský manuál stáhnout pdf (Strana 83)

D-12

SC846 Chassis Manual

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 D-6: Single HBA

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

recovery.

D-9 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 D-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 D-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 D-9: Dual HBA Failover

1 2 ... 78 79 80 81 82 83 84 85 86 87 88 ... 96 97

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