We are going to replace our CX3 SAN to a CX4-120. My supervisor says that he would like to consider iSCSI in the near future (1 to 2 years' time).
He would like to know does iSCSI is built in or we have to purchase it as Add-In.
If we consider using iSCSI in the future, is there any benefit if we purchase a CX4-240 instead of CX4-120 SAN.
All CX4 series arrays have both iSCSI and FC attachments available by default.
The various models can support different amounts of iSCSI and FC, but there are a minimum of 2 ISCSI ports available on each array SP.
I have a review of the quotation from vendor and found that it states "4x FC4 Ports + 4x iSCSI ports" but from the specification sheet, it says there are 3 base SP configurstions. One of them is "2 8Gb/s Fibre Channel optical ports + 2 10G/s Ethernet iSCSI optical ports". I think it is what we are after.
Should we talk to the vendor to make sure that the ports are of this configuration ?
Tony here is an excerpt from the Open systems config guide...
CX4 series storage-system SP ports
The CX4 series storage-system SP ports for each storage-system type depend on the type and number of UltraFlex I/O
modules installed in the storage system.
Each storage system has at least one of the following 4 Gb or 8 Gb Fibre Channel I/O modules (4 Gb Fibre or 8 Gb Fibre)
And one 1GbE iSCSI I/O module (1GbE iSCSI/TOE) or one 10 GbE iSCSI I/O modules (10 GbE iSCSI):
• 4 Gb or 8 Gb Fibre with 1 Fibre back-end (BE) ports and 2 Fibre front-end (FE) ports (CX4-120)
• 4 Gb or 8 Gb Fibre with 2 Fibre back-end (BE) ports and 2 Fibre front-end (FE) ports (CX4-240, CX4-480, CX4-960)
• 4 Gb Fibre with 4 Fibre back-end (BE) ports (only for CX4-960 with the expansion option, model CX4-960EXPSW
and model CX4-960EXPIO).
• 4 Gb or 8 Gb Fibre with 4 Fibre front-end (FE) ports (optional for all systems)
• 1 GbE iSCSI or 10 GbE iSCSI with two iSCSI front-end (FE) ports (all systems)
Note: The 8 Gb Fibre Channel I/O modules require FLARE 04.28.000.5.7xx or later. The 10 GbE iSCSI I/O modules
required FLARE 04.29.000.5.0xx or later.
New arrays would ship with R30 and 8Gb FC modules and 10GB iSCSI modules.
How you option the arrays is up to you.