Fujitsu ETERNUS DX60 VFY:DX600XF050IN 产品宣传页

Copyright 2009 FUJITSU LIMITED

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ETERNUS DX60/DX80 Snapshots

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Snapshots capture changes

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ETERNUS DX60/DX80:  SnapOPC+

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Space requirement: only for changed 
data

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Operational dependence

•

Zero Performance impact when the 
Snapshot is invoked

•

Latency for first writes to the source (copy-
on-write)

•

Heavy reads from the snapshot impact the 
source LUN

•

Snapshots become invalid if source RAID 
group fails

Recommendation: for space efficient temporary copies

(e.g. a consistent source for backup to tape) 

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