"De-duplication may have some effect on speed, but the capacity increases are worth it," says the administrator, who requests his name and company remain anonymous. "If I have to take a 5 percent loss to reduce my capacity by 50 percent, I'll take that. If my backup window is going from six hours to 40 minutes, I'll take a little bit of a hit with de-duplication to not have those long backup windows."
It is likely all VTL will have to use one form of compression soon. Rob Stevenson, managing director of market research firm TheInfoPro (TIP), says interviews with Fortune 1000 firms reveal enterprises have strict requirements for VTL.
"First, [VTL] has to seamlessly integrate with the backup process, Stevenson says of feedback hes getting from enterprise storage customers. The second thing is performance. It has to scale and has to meet the backup window on weekends. Third is de-duplication, and fourth is replication for disaster recovery."
NetApp entered the VTL space well after its major competitors, and it appears to have a way to go to catch up on customers. When asked how many VTL customers NetApp has, Padmanabhan says "that's confidential." We have been very surprised by the size of this market. We went in not knowing how significant the VTL market is."
NetApp's NearStore VTL700 replaces the single-controller VTL600, with a starting price of $154,000 for 10 usable Tbytes. The dual-controller VTL1400 replaces the VTL1200 and starts at $238,000 with 20 Tbytes.
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