HP XP RAID Manager Software - Manual (Page 85)

Table 22 Comparing multi-platform volumes performance
Continuous Access
Journal performance Continuous Access
Synchronous
performance Business Copy
performance LU path information
reported to RAID
Manager LU path definition #
Commands are
rejected. Commands are
rejected. Business Copy Z
performance Actual LU path
information is
reported. LU path is defined. 1
Commands are
rejected. Commands are
rejected. Business Copy Z
performance Dummy LU number is
reported. LU path is not
defined. 2
Differences in replication commands
Differences between open volumes and mainframe volumes in replication commands are shown
below. For details on the differences, see the manual for each program product.
Table 23 Differences in replication commands
Notes Performance in
mainframe
system Performance in
open system Description Option Command #
This option is not supported
in Continuous Access Continuous
Access
Synchronous Z: Continuous
Access
Synchronous: Specifies track
size when
copying. -c paircreate* 1
Journal and Continuous
Access Journal Z.
3 or 15 tracks You can specify
1 to 15 tracks.
There is no difference
between Business Copy
and Business Copy Z.
When you
specify the
number 1 to 3,
the copy speed is
3 tracks.
When you
specify the
number 4 to 15,
the copy speed is
15 tracks.
Business Copy pairs and
Business Copy Z pairs You can specify
this option. You can specify
this option. -m grp
[CTGID] 2 •
If CTGID is not
specified,
cannot be registered to the
same CTG ID.
CTGID is
automatically
If both Business Copy pairs
and Business Copy Z pairs assigned and
a pair is
registered to
the CT group.
are registered to one
group, the command ends
abnormally.
• If CTGID is
specified, a
pair is
registered to
the CTGID in
use.
This option is only for
Continuous Access The volume
cannot be read -r: Read only
-rw: Read /
Write enabled
Specifies access
mode to S-VOL
after splitting a
pair. -r
-rw
pairsplit 3
Synchronous, Continuous
Access Synchronous Z, regardless of
specified options.
Continuous Access Journal,
and Continuous Access
Journal Z.
Pair operations with volumes for mainframe 85