HP StorageWorks XP Remote Web Console Software - Manual (Page 148)

10 Feature Comparison with the IBM Product
This chapter describes the differences between IBM FlashCopy and HP Version 2.
•
“Feature Comparison with the IBM Product” (page 148)
•
“Comparison of the Maximum Number of Relationships Between IBM FlashCopy and Version
2” (page 148)
•
“Comparison of Copying Process” (page 148)
•
“Comparison of Relationship Releasing Process” (page 150)
•
“Comparison of Supporting Commands” (page 152)
Feature Comparison with the IBM Product
“Differences Between IBM FlashCopy and Version 2” (page 148) shows the differences between
IBM FlashCopy and HP Version 2.
Table 72 Differences Between IBM FlashCopy and Version 2
HP Version 2 IBM FlashCopy Compared Item
Not supported. Supported.
For details about GLOBAL Mirror
status, see the IBM manual.
GLOBAL Mirror status
Comparison of the Maximum Number of Relationships Between IBM
FlashCopy and Version 2
“Maximum Number of Relationships Between IBM FlashCopy and Version 2” (page 148) shows
the maximum number of relationships between IBM FlashCopy and HP Version 2.
Table 73 Maximum Number of Relationships Between IBM FlashCopy and Version 2
Version 2 IBM FlashCopy Compared Item
Up to 16 relationships can be created
per extent (the smallest unit: track). Up to 12 relationships can be created
per extent (the smallest unit: track). Number of multiple relationships
1,000 relationships (for all volume
types) 951 relationships (for 3390-3)
2,719 relationships (for 3390-9 when
the number of available cylinders is
10,017)
7,615 relationships (for 3390-L when
the number of available cylinders is
28,356)
8,839 relationships (for 3390-L when
the number of available cylinders is
32,760)
Maximum number of pairs that can be
created per volume
Comparison of Copying Process
“Differences of Copying Process Between IBM FlashCopy and Version 2” (page 149) shows the
differences of the copying process for IBM FlashCopy and HP Version 2.
148 Feature Comparison with the IBM Product