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Vol. 3 No. 3 May 2004

WAN Links gain speed

Network accelerators Source: Marc Staimer, founder, Dragon Slayer Consulting Storage managers have long realized that TCP/IP worked poorly for storage, especially when replicating large volumes of data. But with the need to support widely distributed operations and under pressure to protect data from disasters, managers had little choice but to suffer TCP/IP's shortcomings when replicating data. Help with overcoming--or at least minimizing--TCP/IP's infamous transmission problems is finally arriving. TCP/IP wasn't designed to transport large volumes of stored data. The pervasive WAN protocol has no problem with small amounts of data that can be sliced and diced into tiny packets. However, "TCP/IP doesn't handle congestion well. It does a lot of checking back and forth and resending, which just slows things way down," says Marc Staimer, founder, Dragon Slayer Consulting, Beaverton, OR. As a result, when an organization tries to replicate large amounts of data between sites over, say, a T1 link (1.5 Mb/s) using TCP/IP the ...

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Features in this issue

  • Mobile Drives, Portable Backups

    Do mobile disk drives have a future in disk-based backup?

  • Bridging SAN islands

    To help ensure that a change made to one part of the SAN doesn't interfere with the entire storage network, some new products claim to have developed a new switch-based intelligence that segregates the SAN and protects SAN data.

  • WAN Links gain speed

    Can't get past the cost of doing high-speed remote replication? Latency problems driving you nuts? New TCIP/IP accelerators for IP storage promise some relief.

Columns in this issue