PRO+ Premium Content/Storage
Access your Pro+ Content below.
Remote Replication Gets Out of the Array
This article is part of the Storage issue of Vol. 3 No. 9 November 2004
If you're a Symmetrix user and have stringent remote replication requirements, Symmetrix Remote Data Facility (SRDF) is pretty much the only game in town. But SRDF has its limitations: It's extremely expensive and only works within Symmetrix environments. Last month, EMC chipped away at those complaints with the introduction of EMC Open Replicator for Symmetrix, which copies data between a Symm and IBM Shark, HDS Lightning and HP EVA. In addition, EMC added SRDF/Star, a three-site replication suite that allows a Symm to replicate synchronously and asynchronously at the same time to two separate sites. Today, the replication market stands at about $1 billion, and is split about 70/30 between array-based replication such as SRDF and IBM's PPRC, and host-based replication such as Veritas Volume Replicator, says Arun Taneja, founder of Taneja Group. SRDF has "the lion's share" of the array-based replication market, he says. For EMC, "it's the goose that laid the golden egg." But over the next couple of years, the majority of ...
Access this PRO+ Content for Free!
Features in this issue
-
Fund Watch
-
Synthetic Full Backup Catching On
Synthetic fulls slash backup time
-
NAS Takes SMBs to Next Level
-
How to design a core/edge SAN
Use the SPICE algorithm to simplify the process of designing a large core/edge SAN.
-
First Look: Asigra Televaulting for Enterprises
Asigra's Televaulting for Enterprises is an agentless remote backup application that uses commodity servers at remote locations to ship pared-down data back to a centrally managed site.
-
4Gb--ready or not, here it comes
You might not need them, but 4Gb/sec Fibre Channel products are coming. Comparably priced to 2Gb/sec and backward compatible, they might end up in your storage network whether you need them or not.
-
The search for cost-effective disaster recovery
Creating an efficient DR strategy starts with determining the value of your company's applications and data. You can find the right mix of DR technologies to protect your data without breaking the bank.
-
Accommodating arrays
Modern storage arrays offer disk types to meet any need -- costly Fibre Channel (FC) disks for high-end applications requiring superior performance and availability, and lower-priced SATA disks for less-critical data. The arrays also come with mixed RAID configurations. But selecting the right mix of disks and RAID levels requires understanding the impact of those decisions.
-
Remote Replication Gets Out of the Array
Network-based replication challenges array apps
Columns in this issue
-
Hot Spots: Bring disaster recovery home
Disaster recovery services offer convenience and economy, but they may not protect your company's data sufficiently--maybe it's time to bring DR back in-house.
-
Best Practices: Backup operations redux
Readers comments on July's column on 10 steps for better backups raise some new issues.
-
Editorial: Common sense triumphs
Common sense triumphs
-
Snapshot: Network-based storage services
Do you run network-based storage services?