HP XP7 Storage - Manual (Page 177)

HORCM CTQM
#groupinterval (10ms)mode(optional
oradb300
where
•
group is to be allowed as a group across multiple storage systems.
•
interval is the interval for the CTQ-Marker, recommended as a few second.
•
mode is the run mode for the CTQ-Marker (timestamp). The default run mode is freeze/run.
This does not normally need to be specified. If "run" is specified, then the timestamp is issued
without freeze.
(2) Specifying different JID into CT group
In order to support the MxN configuration, it is necessary to specify a different journal ID (JID) into
a CT group corresponding to a RAID Manager group. Thus RAID Manager adds an option to
specify Journal ID in horcm.conf.
HORCM_LDEV
#dev_group dev_name Serial# CU:LDEV(LDEV#) MU#
oradb dev1 30095:1 02:40
oradb dev2 30095:1 02:41
oradb dev3 30095:2 02:42
oradb dev4 30095:2 02:43
NOTE: The number at the end of the serial number (for example, :1 or :2) specifies the Journal
ID.
If JID (Journal ID) is specified on horcm.conf as mentioned above, then the paircreate command
need not specify Journal ID (-jp <jid> -js <jid>) option.
If JID (Journal ID) is not specified on horcm.conf, then Journal ID (-jp <jid> -js <jid>) option of the
paircreate
command is used.
Command specifications
RAID Manager does not change the command options for supporting Continuous Access Journal
MxN Open. However the output of the command is added so that the command can display the
CT group and Q-Marker for each storage system, because the CT group and Q-Marker are managed
on each storage system.
pairdisplay command
The output of pairdisplay -v ctg and pairdisplay -v jnl[t] are supported so that
the option can display CT group information for each storage system. Following is an example for
Cnt Ac-J 2x2:
# pairdisplay -g ora -v ctg
CTG P/S Status AP U(%) Q-Marker QM-Cnt SF(%) Seq# IFC OT/s CT/m RT/m
000 P-VOL PAIR 1 0 00000032 18 50 64034 ON 60 - -
000 S-VOL PAIR 1 0 00000020 - 70 64035 - - - -
000 P-VOL PAIR 1 0 00000031 15 50 64045 ON 60 - -
000 S-VOL PAIR 1 0 00000022 - 70 64046 - - - -
# pairdisplay -g ora -v jnl
JID MU CTG JNLS AP U(%) Q-Marker Q-CNT D-SZ(BLK) Seq# Num LDEV#
001 1 0 PJNN 1 0 00000049 2 1633672703 64034
2 5376
002 1 0 SJNN 1 0 00000047 0 1633672703 64035
2 5378
001 1 0 PJNN 1 0 00000049 20 211506164 64045
13 12388
002 1 0 SJNN 1 0 00000035 20 260319089 64046
16 12544
Continuous Access Journal MxN configuration and control 177