Feeds

EMC preps FCoE I/O module

Hot-swap UltraFlex

5 things you didn’t know about cloud backup

EMC has confirmed industry suspicious that is developing a hot-swap Ultraflex FCoE module for its storage arrays.

Yesterday Chad Sakac, EMC's VMware Technology Alliance veep, revealed: "We’re now, of course, developing an ultraflex IO module for FCoE, which (is) hot-swappable."

FCoE (Fibre Channel Over Ethernet) sends Fibre Channel messages across an Ethernet cable and will enable faster overall transmissions because things happen lower down the network protocol stack than with iSCSI and NFS, which rely on TCP/IP, according to Sakac.

"Because of the intrinsic model of the protocol stack, the higher you go, the longer the latencies in various operations." He cites transmission loss handling as an example.

With FCoE, such loss handling is carried out at the Ethernet layer, via the coming 802.1Qbb standard, in milliseconds, whereas it can take tens of seconds for NFS.

UltraFlex is the name for the I/O technology used in EMC's Clariion CX4 arrays and newer Celerras. It provides a means to add new I/O protocols to the array by plugging in cards. The CX4 came with 4Gbit/s Fibre Channel and iSCSI modules. It meant that EMC could later add 8Gbit/s Fibre Channel, 10GigE, FCoE and even InfiniBand if it wished.

Until now NetApp has been the sole big storage array supplier to demonstrate an FCoE interface to its storage. Sakac has confirmed what many people have suspected, that EMC is indeed developing an FCoE module which will enable end-to-end FCoE links between servers, any intervening FCoE-handling Ethernet switch and the Clariion array.

Sakac thinks server edge networking will converge onto Ethernet, partly because Intel will support 802.1Qbb and provide a software initiator.

Because of this, FCoE support will "just be an attribute of every commodity NIC and switch on the market. Everyone in the FC HBA/switch market is rushing to it not because they want proprietary, but rather because we're reaching the inflection point where if you’re not doing this, you’re going to be out of business (maybe not today, but at a relatively near “tomorrow”)."

Currently, end-to-end FCoE is limited to 2-hop networks for now, server-to-switch-to-array. ®

5 things you didn’t know about cloud backup

Whitepapers

Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Endpoint data privacy in the cloud is easier than you think
Innovations in encryption and storage resolve issues of data privacy and key requirements for companies to look for in a solution.
Why cloud backup?
Combining the latest advancements in disk-based backup with secure, integrated, cloud technologies offer organizations fast and assured recovery of their critical enterprise data.
Consolidation: The Foundation for IT Business Transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?