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paul881

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paul881

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May 4th, 2013 17:00

VNX SP & Data Movers I/O modules

Hi, I am new to VNX and just wanted to ask a few questions on connectivity from a host or san switch to the VNX.

Any explanations is much appreciated.  Thank you.

I copied the following information from the 5300 parts guide.

I was told that the SP ports are only meant for block access and Data mover ports for file access

Q1.  The SP front end ports are only for block access and should be connected to either a FC SAN switch or iSCSI Ethernet switches

        From the parts description below , it looks like the data mover have the same ports, do they also connect to FC SAN and iSCSI switches ?

Q2 . I guess I am confused with the purpose of the data mover I/O modules . I suppose they connect to ethernet switches since it is for NAS but

what about the FCOE port on the data mover I/O module, can you connect this to an FCOE switch or CNA , just like the SP front end ports ?

Q3.  Are the SP FC ports also directly connected to the data mover FC ports, are they used for moving data from the back end to the front end ?

SP

Five types of I/O modules are supported in the SP:

◆ “Four-port 8-Gb/s Fibre Channel (FC) I/O module” on page 23

◆ “Four-port 1-Gb/s copper iSCSI I/O module” on page 24

◆ “Two-port 10-Gb/s optical (w/iSCSI protocol) I/O module” on page 25

◆ “Two-port 10-Gb/s Fibre Channel over Ethernet (FCoE) I/O module” on page 26

◆ “Two-port 10-Gb/s RJ-45 Base-T iSCSI/IP I/O module” on page 27

Data Mover

Seven types of I/O modules are supported in the Data Mover:

◆ “Four-port 8-Gb/s Fibre Channel (FC) I/O module” on page 23

◆ “Two-port 10-Gb/s Fibre Channel over Ethernet (FCoE) I/O module” on page 26

◆ “Two-port 10-Gb/s RJ-45 Base-T iSCSI/IP I/O module” on page 27

◆ “Two-port 1-Gb/s copper plus two-port 1-Gb/s optical I/O module” on page 28

◆ “Two-port 10-Gb/s optical I/O module” on page 29

◆ “Four-port 1-Gb/s copper I/O module” on page 30

◆ “Two-port 10-Gb/s optical I/O module” on page 31

  • Rainer_EMC

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    Posted May 5th, 2013 08:00

    All the data mover does is to provide front-end are NAS protocols via its Ethernet ports

    Any SAN (FC and FCoE) ports on the DM are to connect it to the back-end (disks) or to a tape drive

    See the installation guide for cabling

  • Rainer_EMC

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    Posted May 5th, 2013 08:00

    In a normal (non-gateway VNX) each DM is directly connected via FC to each SP

    One or two FC ports of a DM might be connected to a SAN switch for tape backup

    All of the DM SAN ports are purely initiators - not targets