HP StorageWorks Business Copy XP Media B9330A 전단

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B9330A

Figure 6: Traditional vs. Thin Provisioned Logical Unit Allocation

HP StorageWorks Business Copy XP (BC)
HP StorageWorks Business Copy XP (BC) maintains internal copies of use data on disk arrays for

purposes such as data backup or replication. Replicated volumes are created on the same disk
array as the primary volume at hardware speeds. BC reduces backup time and provides point-in-

time backup. BC primary volumes (P-VOLs) contain original data; BC secondary volumes (S-VOL

can be maintained as an independent copy set that can also be split, resynchronized, and

deleted separately from other S-VOLs assigned to the same P-VOL (See Figure 7).

Figure 7: XP Business Copy XP maintains point-in-time copy relationship between P-VOL and S-VOL

HP StorageWorks External Storage XP (ES XP)
HP StorageWorks External Storage XP

allows administrators to host XP24000 Disk Array

datasets on select external storage subsystems, including HP Modular Smart Array (MSA) storage

systems, HP Enterprise Virtual Array (EVA) storage systems, legacy XP arrays, as well as current

and legacy arrays from other storage providers. Because ES XP data is accessed from a unified

External Storage XP is also available on XP20000, XP12000 and XP10000

Available when

needed. Not pre

allocated

100GB used

400GB

Allocated but unused

(Stranded Storage)

100GB used

400GB

Traditional Logical Unit Allocation

Thin Provisioned Logical Unit Allocation

75% of capacity saving

75% of stranded capacity

Storage allocation “Just-In-Time”

Available when

needed. Not pre

allocated

100GB used

400GB

Available when

needed. Not pre

allocated

100GB used

400GB

Allocated but unused

(Stranded Storage)

100GB used

400GB

Allocated but unused

(Stranded Storage)

100GB used

400GB

Traditional Logical Unit Allocation

Thin Provisioned Logical Unit Allocation

75% of capacity saving

75% of stranded capacity

Storage allocation “Just-In-Time”