Sunday, 8 July 2018

Difference Cisco Nexus 3132Q-V Rev Air vs Std Air

Everyone probably already knows this, but I didn’t until a few weeks ago.

The Blue tabs on fans on the NX3132Q-V Std Air, means the fan side should be in the cold (blue) aisle (symbols on the tab show air being sucked in.)

The Red tabs on fans on the NX3132Q-V Rev Air, means the fans blow hot air out the back and should be in the hot (red) aisle (symbols on the tab show air being blown out.)

Most commonly, the NX3132Q-V Std Air is used for the NetApp ONTAP cluster switches, since it makes the cabling easier (the ports at the back of the controllers are the same side of the cabinet as the switch ports.)

Image: Cisco Nexus 3132Q-V Std Air with Blue Tabs on Fans

Image: Cisco Nexus 3132Q-V Rev Air with Red Tabs on Fans

Sunday, 1 July 2018

MetroCluster IP Installation: Cabling the IP Switches: AFF A800 Systems

The following Visio diagrams are constructed from the MetroCluster IP Installation and Configuration Guide and the section:

Configuring the MetroCluster hardware components
> Installing and cabling MetroCluster components
> Cabling the IP switches

I’ve used the Cisco Nexus 3132Q-V switch in the diagrams.
I’m only showing cabling for the two switches in site A (SW_A_1 and SW_A_2).
These diagrams show cabling to AFF A800 systems.

Note from the manual regards MetroCluster ISLs:

Cable the switch ISL connections.
- One, two or three 40-Gbps ISLs are supported or up to six 10-Gbps MetroCluster ISLs.
- If using the Cisco 3232C switch in breakout mode, ports 21 - 24 are used as MetroCluster ISLs. In this case these 40-Gbps ports are split into four 10-Gbps ports. You must be using the correct RCF files to support the breakout configuration.
- The switch cannot be configured with both 40-Gbps and 10-Gbps ports.

Image: Legend

Image: Switch Site A Number 1 (SW_A_1) cabling to AFF A800

Image: Switch Site A Number 2 (SW_A_2) cabling to AFF A800

MetroCluster IP Installation: Cabling the IP Switches: AFF A700 and FAS9000 Systems

The following Visio diagrams are constructed from the MetroCluster IP Installation and Configuration Guide and the section:

Configuring the MetroCluster hardware components
> Installing and cabling MetroCluster components
> Cabling the IP switches

I’ve used the Cisco Nexus 3132Q-V switch in the diagrams.
I’m only showing cabling for the two switches in site A (SW_A_1 and SW_A_2).
These diagrams show cabling to AFF A700 and FAS9000 systems.

Note from the manual regards MetroCluster ISLs:

Cable the switch ISL connections.
- One, two or three 40-Gbps ISLs are supported or up to six 10-Gbps MetroCluster ISLs.
- If using the Cisco 3232C switch in breakout mode, ports 21 - 24 are used as MetroCluster ISLs. In this case these 40-Gbps ports are split into four 10-Gbps ports. You must be using the correct RCF files to support the breakout configuration.
- The switch cannot be configured with both 40-Gbps and 10-Gbps ports.

Image: Legend

Image: Switch Site A Number 1 (SW_A_1) cabling to AFF A700/FAS9000

Image: Switch Site A Number 2 (SW_A_2) cabling to AFF A700/FAS9000