Performing CCI Operations
1–15
Hitachi AMS 2000 Family Command Control Interface (CCI) Reference Guide
change the volume status to SSWS by issuing the command for the
takeover (horctakeover) beforehand, and then issue the command for the
pair splitting (pairsplit –R).
•
•
NOTE: During the period until the response of the command is returned
after the pair status change command such as pairsplit is executed, the
pairdisplay command cannot be executed in the same screen. Therefore,
start another screen and execute pairdisplay to check the pair status.
Table 1-5: Pairsplit Command Parameters
Parameter
Value
Command Name
pairsplit
Format
pairsplit {-h
-q
-z
-I[H
M][instance#]
-g
group
-d
pair Vol
-d[g]
<raw_device> [MU#]
-FHORC
-FMRCF [MU#]
-d[g] <seq#> <LDEV#>
[MU#]
-r
-rw
-S
-R[B]
-l
-nomsg
-C <size>
-fq <mode>
-E
-ms<Split-Marker>
-mscas<Split-Marker> [MU#]}
Options
Note: Only one
pairsplit option (-r, -
rw, -S, -C, -E) can be
specified. If more
than one option is
specified, only the
last option will be
executed.
-h:
Displays help, usage, and version information.
-q:
Terminates the interactive mode and exits this command.
-z or -zx:
Makes the pairsplit command enter the interactive mode. The -zx
option guards performing of the HORCM in the interactive mode. When this
option detects a HORCM shut down, interactive mode terminates.
-I[H | M][instance#] or -I[TC | SI][instance#]: Specifies the instance
number and the command execution environment. Refer to
and option for command execution environment on page 1-4
.
-g <group>:
Specifies a group name defined in the configuration definition
file. This option must always be specified. The command is executed for the
specified group unless the -d <pair Vol> option is specified.
-d <pair Vol>: Specifies the paired logical volume name defined in the
configuration definition file. When this option is specified, the command is
executed for the specified paired logical volumes.
-d[g] <raw_device> [MU#]:
Searches a group on the configuration
definition file (local instance) for the specified raw_device, and if the specified
raw_device is contained in the group, the target volume is executed as the
paired logical volume (-d) or group (-dg). This option is effective without
specification of
“-g <group>“ option. If the specified the raw_device is contained in two or
more groups, the command is executed on the first group.
-FHORC or -FCA: Forcibly specifies a cascading TrueCopy and TCE volume for
specified pair logical volumes in a ShadowImage and SnapShot environment
(see example in
). If the -l option is specified, this
option splits a cascading TrueCopy or TCE volume on a local host. If no -l option
is specified, this option splits a cascading TrueCopy or TCE volume on a remote
host. The target TrueCopy or TCE volume must be a P-VOL and the -R option
cannot be specified.
What can be cascaded with the TCE is the P-VOL of SnapShot only. In the case
where the P-VOL of SnapShot is cascaded with the S-VOL of TCE, an instruction
to split the SnapShot pair cannot be issued directly when both pairs are in the
PAIR status.
Summary of Contents for AMS 2000 Series
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