Oracle Database Appliance X4-2: Copper vs. Fiber


With the Database Applicance Release X4-2 hardware you can choose between 10GbE SFP+ and 10GBase-T (Dual Port) for interconnect or public network.

At initial deployment you are able to choose the configuration you want to use:

copper_vs_fiber

Delivery

If a new x4-2 has been ordered, it will be delivered with 2x SFP+ and 2x Ethernet Cable for both interconnect options

ethtool for fiber card

Settings for eth0
        Supported ports: [ FIBRE ]
        Supported link modes:   10000baseT/Full 
        Supports auto-negotiation: No
        Advertised link modes:  10000baseT/Full 
        Advertised pause frame use: No
        Advertised auto-negotiation: No
        Speed: 10000Mb/s
        Duplex: Full
        Port: Direct Attach Copper
        PHYAD: 0
        Transceiver: external
        Auto-negotiation: off
        Supports Wake-on: d
        Wake-on: d
        Current message level: 0x00000007 (7)
        Link detected: yes

Settings for eth1
        Supported ports: [ FIBRE ]
        Supported link modes:   10000baseT/Full 
        Supports auto-negotiation: No
        Advertised link modes:  10000baseT/Full 
        Advertised pause frame use: No
        Advertised auto-negotiation: No
        Speed: 10000Mb/s
        Duplex: Full
        Port: Direct Attach Copper
        PHYAD: 0
        Transceiver: external
        Auto-negotiation: off
        Supports Wake-on: d
        Wake-on: d
        Current message level: 0x00000007 (7)
        Link detected: yes

4 thoughts on “Oracle Database Appliance X4-2: Copper vs. Fiber

  1. Yes, I was interested to see that Oracle gives you the option with X4-2 to put an SFP+ (so fibre etc) card into the PCI slot and have your interconnect on the on-board copper. You say: “it will be delivered with 2x SFP+ and 2x Ethernet Cable for both interconnect options” do you mean they ship a dual copper PCI card in the server (as per X3-2) *and* give you a spare SFP+ card for each node in the box? If so it seems quite an expensive approach for them to take given that many people will manage with copper only; then again it does make shipping simpler…

    • Hi Simon,
      the Applicance will be deliverd with 1 Dual Port SFP+ Controller and four 10GBit OnBoard Ethernet Ports. So if you want to use cooper, nothing changed. -> The dual port sfp+ will be used for interconnect and the copper for public. If you want to use fiber, the roles will be switched (just 2 10GBit Ethernet Ports are used for Interconnect then).

      By deliver I mean, that 2 SFP+ and 2 Copper Cables will be shipped.

      Compared to the X3-2 the dual port Copper NIC has been replaced by a dual port Fiber NIC.

      Rgds,
      Daniel

  2. Ah, yes, that makes more sense! So they’re presumably including 2 x 2 10Gbase-T SFP+ transceivers too (and regular green/yellow RJ45 CAT6 patch cables like before, rather than twinax) , which you can then remove if you want to use fibre.

    By the way, I think Oracle only uses the on-board NICs for interconnect when essential for fibre since those NICs have half the PCIe lanes of the separate card (see http://www.veriton.co.uk/roller/fmw/entry/oracle_database_appliance_x4_2).

    • Actually they are supplying 2 twinax cables after all:
      http://docs.oracle.com/cd/E22693_01/doc.21/e22692/chklist.htm#autoId19
      “If the connections from Oracle Database Appliance X4-2 to your public network require copper cables, then use the twinax pair for the node interconnects….In this case, discard the supplied copper interconnect cables (or use them for something else).”

      It’ll be nice if the twinax cables they ship are a bit shorter than the previous 1.5m given that they only need to reach about 10cm!

      Thanks for the useful post Daniel – I haven’t worked on an ODA X4-2 yet so it’s useful to know what to expect in this area.

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