1. logon to emc server
2. search for the host in question and the device group (in this case host4 device group Adat3)
# symdg list
D E V I C E G R O U P S
Number of
Name Type Valid Symmetrix ID Devs GKs BCVs VDEVs
host1_data-M RDF1 Yes 000285700131 8 0 0 0
host1_dumps-M RDF1 Yes 000285700131 1 0 0 0
host2_data-M RDF1 Yes 000285700131 9 0 0 0
host2_temp-M RDF1 Yes 000285700131 6 0 0 0
host3_data RDF1 Yes 000285700131 8 0 0 0
host4_Adat3 RDF1 Yes 000290100000 27 0 0 0 (this is the one we want)
host4_Bdat3 RDF1 Yes 000290100000 12 0 0 0
3. split the device group
# symrdf -g host4_IBM3 split
Execute an RDF 'Split' operation for device
group 'host4_IBM3' (y/[n]) ? y
An RDF 'Split' operation execution is
in progress for device group 'host4_IBM3'. Please wait...
Suspend RDF link(s).......................................Done.
Read/Write Enable device(s) on RA at target (R2)..........Done.
The RDF 'Split' operation successfully executed for
device group 'host4_IBM3'.
4. confirm the split
# symrdf -g host4_IBM3 query
Device Group (DG) Name : host4_IBM3
DG's Type : RDF1
DG's Symmetrix ID : 000290100000
Source (R1) View Target (R2) View MODES
-------------------------------- ------------------------ ----- ------------
ST LI ST
Standard A N A
Logical T R1 Inv R2 Inv K T R1 Inv R2 Inv RDF Pair
Device Dev E Tracks Tracks S Dev E Tracks Tracks MDA STATE
-------------------------------- -- ------------------------ ----- ------------
DEV001 05F8 RW 0 260 NR 06B0 RW 0 0 S.. Split
DEV002 0608 RW 0 258 NR 06C0 RW 0 0 S.. Split
DEV003 0618 RW 0 262 NR 06D0 RW 0 0 S.. Split
DEV004 0628 RW 0 266 NR 06E0 RW 0 0 S.. Split
DEV005 0638 RW 0 264 NR 06F0 RW 0 0 S.. Split
5. To reestablish the link
# symrdf -g host4_IBM3 establish
Execute an RDF 'Incremental Establish' operation for device
group 'host4_IBM3' (y/[n]) ? y
An RDF 'Incremental Establish' operation execution is
in progress for device group 'host4_IBM3'. Please wait...
Write Disable device(s) on RA at target (R2)..............Done.
Suspend RDF link(s).......................................Done.
Resume RDF link(s)........................................Started.
Merge device track tables between source and target.......Started.
Devices: 0778-078F ...................................... Merged.
Devices: 0758-0777 ...................................... Merged.
Devices: 0738-0757 ...................................... Merged.
Devices: 0718-0737 ...................................... Merged.
Devices: 06F8-0717 ...................................... Merged.
Devices: 06D8-06F7 ...................................... Merged.
Devices: 06B8-06D7 ...................................... Merged.
Devices: 0698-06B7 ...................................... Merged.
Devices: 0678-0697 ...................................... Merged.
Devices: 0658-0677 ...................................... Merged.
Devices: 0638-0657 ...................................... Merged.
Devices: 0618-0637 ...................................... Merged.
Devices: 05F8-0617 ...................................... Merged.
Merge device track tables between source and target.......Done.
Resume RDF link(s)........................................Done.
The RDF 'Incremental Establish' operation successfully initiated for
device group 'host4_IBM3'.
Incoming search terms:
- dmx check srdf dev split
- dmx rdf split dev