ETERNUS SF AdvancedCopy Manager 14.1 Operator's Guidefor Copy Control Module

2.2.8 Adding copy pairs

Add copy pairs to the copy groups that have been created.

Copy pairs are strings that define copy source and destination logical volumes.

Figure 2.1 Copy pair format

(1) ETERNUS name for the copy source

(2) Logical volume number for the copy source

(3) ETERNUS name for the copy destination

(4) Logical volume number for the copy destination

Use the following procedure to add copy pairs.

1. Check the logical volume numbers for the copy source and destination that will be added as a copy pair.

   • Checking the logical volume number of the copy source

     If using the AdvancedCopy Manager CCM function to check the correspondence between the OS device name and the Logical Volume Number, execute the following, depending on the server.

     [For Windows]

     1. Install the AdvancedCopy Manager CCM.

     2. Execute "A.8.1 acutil devs (Logical volume information display command) [Windows version only]" to check the correspondence between the OS device name and the Logical Volume Number.

     [For Solaris/Linux/HP-UX/AIX]

     1. Check the operating OS.

        For the operating OS, refer to "A.8.2 acgetvolinfo (Logical volume information display command)".

     2. Execute "A.8.2 acgetvolinfo (Logical volume information display command)" to check the correspondence between the OS device name and the Logical Volume Number.

   • Checking the logical volume number of the copy destination

     Operation that is not connected to the server is recommended for the logical volume of the copy destination.

     Specify the "-free" option in the "A.3.1 acinq lv (Logical volume information display command)" with the CCM server to check a logical volume number that is not connected to the server.

2. Add the copy pair to a copy group using "A.5.5 acpair add (Copy pair addition command)".

   The execution example of making the copy group "GRP1" state in the "Figure 2.2 Adding copy pairs" is as follows.

   > acpair add -g GRP1 -p E4000/0x25:E4000/0x29
   Successful completion.
   
   > acpair add -g GRP1 -p E4000/0x26:E4000/0x30
   Successful completion.
   
   > acpair add -g GRP1 -p E4000/0x27:E4000/0x31
   Successful completion.
   
   > acpair add -g GRP1 -p E4000/0x28:E4000/0x32
   Successful completion.
    

   In the case when the copy type is SnapOPCP, the execution example of making the copy group "GRP2" state in the "Figure 2.2 Adding copy pairs" is as follows.

   > acpair add -g GRP2 -p E4000/0x33:E4000/0x35
   Successful completion.
   
   > acpair add -g GRP2 -p E4000/0x33:E4000/0x36
   Successful completion.
   
   > acpair add -g GRP2 -p E4000/0x34:E4000/0x37
   Successful completion.
   
   > acpair add -g GRP2 -p E4000/0x34:E4000/0x38
   Successful completion.
    

   Figure 2.2 Adding copy pairs

   

   
   

3. Check the logical volume numbers of the copy pairs that have been added.

   Display information about the ETERNUS disk storage systems using A.5.3 acgroup detail (Copy group detail information display command), and check that the copy pairs have been added using the specified logical volume numbers.

   > acgroup detail -g GRP1
   
   Copy Group Name : GRP1
   Copy Group Type : OPC
   Disk Array Name : E4000 (00E4000M3#####E450S20A####KD4030639004##)
   
   Pair
   ---------------------
   E4000/0x25:E4000/0x29
   E4000/0x26:E4000/0x30
   E4000/0x27:E4000/0x31
   E4000/0x28:E4000/0x32