Access "DWDM a Boon for the Few"
This article is part of the Vol. 3 No. 2 April 2004 issue of Storage managers give thumbs up to IP storage
Is dense wavelength division multiplexing (DWDM) a success or a failure as a transport for synchronous data replication applications? It depends on who you talk to. According to Todd Bundy, director of business development and alliances for ADVA Optical Networks, at least in the metro, DWDM is popular among customers that used to rely on ESCON channel extension to run data mirroring applications such as IBM's Geographically Dispersed Parallel Sysplex (GDPS). GDPS mirrors and load balances zSeries data across remote locations. But Jim Morin, vice president of strategic planning at CNT, says DWDM has failed to take off the way he thought it might. "Three years ago, I was much more bullish on optical because it offers so much more bandwidth," he says. "With an optical DWDM solution, you can get 2Gb/s bandwidth with a single wavelength," he explains. With SONET, the same bandwidth requires an OC-48, which "costs an arm and a leg." CNT, which resells ADVA DWDM equipment, says it sees about 50% of its sales going into Metropolitan Ethernet installations vs. 25% ... Access >>>
Premium Content for Free.
- DWDM a Boon for the Few
- Future Looks Hazy For Enterprise Drives
Hashing Makes a Comeback
Hashing is back
IP storage delivers
by Johanna Ambrosio
Despite all the FUD surrounding IP SANs, early users say IP-based storage isn't all that difficult to manage and that performance is sufficient. The key is knowing what applications IP SANs should be used for.
Wrestling with regulations
by Bill O'Brien
In the health care industry, complicated regulations such as HIPAA, combined with new technologies that require enormous amounts of storage, are driving storage managers to the emergency room.
Get control of capacity
Although storage resource management tools can be complicated to implement, they're a better alternative to breaking the bank and rushing out to purchase more storage. Get precise with your vendors on what you need and you'll wind up with better results.
Firm Takes Standards Route For Compliance Vault
Centera still too costly for some
Backup Bundles of Joy?
Are you any closer to backup nirvana?
E-mail Management Derailed By Regulations
Everyone wants a say in e-mail management.
Disaster recovery relief
The cost of disaster recovery tools can be even more than the value of the data that these very tools are supposed to be protecting. Fortunately, newer approaches to DR are restoring sanity to this high-pressure task.
by Arun Taneja
Newsflash: Conventional data protection has reached its limits and will be dramatically changing in the next couple of years. But all roads don't lead to the same result. Here's how to analyze which route is best for you.
- Firm Takes Standards Route For Compliance Vault
Storage vendors need to start thinking about security
by Jon Oltsik
Everyone--except storage vendors--is concerned about security these days. Here's how to get them thinking in the right direction.
How many storage admins do you need?
by Stephen Foskett
When creating your dedicated storage management group, there are better ways to determine staff levels than relying on a simplistic metric based on the number of terabytes per manager.
Storage vendors should have knocked EMC down when they had the chance
Storage Bin: Storage vendors should have knocked EMC down when they had the chance. Now, it may be too late.
Snapshot: Number of terabytes of disk capacity managed
How Many Terabytes Do You Manage?
Why don't storage managers consider renting storage?
by Darryl Brooks
Your pack-rat neighbor uses public storage to stash belongings that don't fit in his tiny townhouse. So why don't storage managers consider renting storage?
by Mark Schlack
- Storage vendors need to start thinking about security by Jon Oltsik
More Premium Content Accessible For Free
Solid-state storage is proliferating as a replacement for hard disk drives, where it offers a quick shift into the fast lane of storage processing...
Making your storage perform to the very best of its ability is an age-old problem with a long list of ways to approach it. But how should you start ...
There's a struggle between doing storage the "old way" and the new demands that virtual servers put on networked storage. Storage vendors have ...