SRDF LUN EXPANSION 40K GUIDE

 Architecture

VMAX Locations are Trivandrum and Bangalore
Serial# for Trivandrum ends with 0111 and Bangalore one ends with 0222.
SRDF Luns are 03222 and 03096 respectively on each VMAX.

1. Identify Ready(R1) and Write Disabled(R2) by running:

symdev -sid 0111 show 03222
symdev -sid 0222 show 03096

2. Get Cylinder size of meta luns.

3. Get RDF Group#.

READY
0111
RUSS : 03222
Cylinder Size: 3355464
Device Configuration: RDF1+TDEV       (Meta Head)
RDF Type: R1
RDF (RA) Group Number: 11 (0A)
Remote Device Symmetrix Name: 03096

WRITE DISABLED
0222
FRN : 03096
Cylinder Size: 3355464
Device Configuration: RDF2+TDEV
RDF Type: R2
RDF (RA) Group Number: 11 (0A)
Remote Device Symmetrix Name: 03222

Meta Cylinder size 139811


................................................

Step 1:
symconfigure -sid 0111 -cmd "create dev count=8, size=139811 cyl, emulation=fba, config=TDEV ;" commit -v
symconfigure -sid 0222 -cmd "create dev count=8, size=139811 cyl, emulation=fba, config=TDEV ;" commit -v

New symdevs: 00EC8:00ECF [TDEVs]
New symdevs: 03507:0350E [TDEVs]


Step 2:
symconfigure -sid 0111 -cmd "set dev 00EC8:00ECF attribute=dyn_rdf;" commit
symconfigure -sid 0222 -cmd "set dev 03507:0350E attribute=dyn_rdf;" commit


Step 3:
symconfigure -sid 0111 -cmd "create dev count=24, size=139811 cyl, config=BCV+TDEV, emulation=FBA ;" commit -v
symconfigure -sid 0222 -cmd "create dev count=24, size=139811 cyl, config=BCV+TDEV, emulation=FBA ;" commit -v

New symdevs: 0113E:01155
New symdevs: 0136F:01386


Step 4:
symconfigure -sid 0111 -cmd "form meta from dev 0113E config=striped; add dev 0113F:01155 to meta 0113E;" commit -v
symconfigure -sid 0222 -cmd "form meta from dev 0136F config=striped; add dev 01370:01386 to meta 0136F;" commit -v

0113E
0136F

Step 5:
Once the BCV+TDEV meta is formed BIND the same to the Pool with persistent enabled.
Pool Name Pool_FC_R5
Check Allocate Full Volume Capacity and Persist preallocation..

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DISABLE CLUSTER ENABLER (WINDOWS TEAM)
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Step 6:
symrdf  -sid 0111 -file pair.txt -rdfg 11 -type R1 split
symrdf  -sid 0111 -file pair.txt -rdfg 11 deletepair -force


Step 7:
symconfigure -sid 0111 -cmd "add dev 00EC8:00ECF to meta 03222, protect_data=TRUE, bcv_meta_head=0113E;"  commit -v
symconfigure -sid 0222 -cmd "add dev 03507:0350E to meta 03096, protect_data=TRUE, bcv_meta_head=0136F;"  commit -v


Step 8:
symdev -sid 0222 write_disable 03096 -SA all
symrdf createpair -sid 0111 -file pair.txt -rdfg 11 -type R1 -rdf_mode sync -invalidate R2
symrdf -sid 0111 -rdfg 11 -type rdf1 -file pair.txt  establish