HP XP P9000 RAID Manager Reference Guide (T1610-96061, January 2014)

2 Data management commands

This chapter provides the specifications for the RAID Manager data management (replication and

protection) commands.

paircreate

WARNING! Use the paircreate command with caution. The command starts the initial copy

operation, which overwrites all data on the secondary/target volume of the pair. If the primary

and secondary volumes are not identified correctly, or if the wrong options are specified (for

example, vl instead of vr), data is copied to the wrong volume overwriting and the data in the

target of transferring will be overwritten.

The paircreate command is used to create a new volume pair from two unpaired volumes. The

paircreate command can create either a paired logical volume or a group of paired volumes. The

paircreate command allows you to specify the direction (local or remote) of the pair generation

(see Figure 3 (page 25)). If local (vl option) is specified, the server issuing the paircreate command

has the primary volume. If remote (vr option) is specified, the remote server has the primary volume.

The -split option of the paircreate command (Business Copy/Snapshot only) allows you to

simultaneously create and split pairs using a replication command only. When -split is used, the

pair status changes from COPY to PSUS (instead of PAIR) when the initial copy operation is complete.

Figure 3 Pair Creation

Before issuing the paircreate command, make sure that the secondary volume is not mounted on

any system. If the secondary volume is found to be mounted after paircreate, delete the pair (pairsplit

-S), unmount the secondary volume, and then reissue the paircreate command.

The paircreate command terminates before the initial copy operation is complete (except when

the nocopy option is specified). Use the pairevtwait or pairdisplay command to verify that the initial

copy operation completed successfully (status changes from COPY to PAIR, or from COPY to PSUS

if the -split option was specified).

Syntax

paircreate { -h | -q | -z | -I[H][M][instance#] or I[TC][SI][instance#]| -g <group>| -d <pair Vol> |

-d[g] <raw_device> [MU#] | -FHORC [MU#] or -FCA[MU#] | -d[g] <seq#> <LDEV#> [MU#]| -f[g] <fence>

-pid <PID> | -fq <mode>| -cto <o-time> [c-time] [r-time] | -pvol(svol)[ldevgrp]-nocsus }

paircreate 25