Commands to control Volume Migration
(1) Command for Volume Migration
CCI supports the volume migration by adding an option (-m cc) to the
paircreate command.
paircreate -g <group> -d <pair vol> … -m <mode> -vl[r] -c <size>
-m <mode> mode = cc (can only be specified for ShadowImage)
This option is used to specify the Volume Migration mode.
Note: This option cannot be specified with "-split" option in the same
command.
-vl[r]
The -vl option specifies "local", and copies from the local instance LU (P-VOL)
to the remote instance LU (S-VOL), an original volume as the local instance
LU is migrated from P-VOL to S-VOL, and the physical volume mapping
between P-VOL and S-VOL is swapped after copied
The -vr option specifies "remote", and copies from the remote instance LU
(P-VOL) to the local instance LU (S-VOL), an original volume as the remote
instance LU is migrated from P-VOL to S-VOL, and the physical volume
mapping between P-VOL and S-VOL is swapped after copied.
-c <size>
This option is used to specify a track size of the case that copies paired
volume at 1-15 extents. In case of stopping Write to P-VOL and copying in a
short time, the maximum value 15 is specified. When this option is omitted, it
uses a default value of (3) is used for track size.
(2) Command for discovering an external volume
It is possible to discover the external volumes by using "-fe" option of the
raidscan command.
raidscan -p <port#> -fe
-fe
This option is used to display the serial# and LDEV# of the external LUNs
only mapped to the LDEV.
If the external LUN mapped to the LDEV on a specified port does not exist,
then this option will do nothing.Also if this option is specified, -f[f][g][d]
option is not allowed.
Display example:
# raidscan -p cl1-a-0 -fe -CLI
PORT# /ALPA/C TID# LU# Seq# Num LDEV# P/S Status Fence E-Seq#
E-LDEV#
CL1-A-0 ef 0 0 8 62496 1 19 SMPL - -
30053 30
Data replication operations with CCI
6-39
Command Control Interface User and Reference Guide
To Next Page
Loading...
Need help?
General