HP eva3000 /50 Hz/ 72 Gb/ 15 335622-B21 전단

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335622-B21
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• The NetApp file system, Write Anywhere File Layout
(WAFL), was designed for file access not SAN-based
block access. As such, NetApp FAS SAN performance
is good with low capacity utilization, but performance
degrades significantly as capacity utilization increases.
Performance also degrades over time as data becomes
more fragmented. The EVA offers excellent and
consistent performance and is not subject to the
performance degradation of the FAS filers.
• The EVA is simpler to manage. According to the
Edison Group Midrange Storage Array TCO white
paper, the EVA required 75 percent fewer steps and
76 percent less time than NetApp filers to perform 
a series of standard administrative tasks
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• According to NetApp’s best practices for SANs,
NetApp’s “Space Reservation” policy requires 
100 percent or more spare space to avoid data
corruption, which in turn increases the cost of the
filer. An EVA doesn’t.
• According to a total cost of ownership (TCO) white
paper by Alinean, the HP EVA provided 34 percent
more usable capacity than NetApp for database
applications, and this difference in usable capacity
yielded an advantage of a 33.9 percent lower TCO
for the HP EVA compared to the NetApp FAS.
• The EVA is fully redundant. NetApp requires a cluster
configuration (dual FAS filers) for redundancy. When
adding a second FAS filer, additional software
licenses are required that drive up the cost of the
solution. The EVA requires only a single software
license per array, not two licenses like the FAS.
• HP offers an integrated server and storage
management solution—Systems Insight Manager—
NetApp only offers storage management for its 
FAS filers.
• HP proactive remote support technology can
anticipate problems before they happen for multi-
vendor server and storage products. NetApp does
not provide proactive support and only supports its
storage products.
• HP sells and services a totally integrated and
complete storage and server solution. NetApp doesn’t
sell servers and doesn’t have a presence in tape.
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TCO White Paper: EMC, NetApp and HP Midrange Storage Arrays. Edison
Group. November 2007. http://h71028.www7.hp.com/ERC/downloads/
4AA1-6634ENW.pdf
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