VMAX : Storage provision for boot LUNs

Most of the clients prefer to create boot luns as Thick.  Below provide steps to create LUNs from thick storage (Disk groups).

1) Verify Disk Group information

symdisk list -dskgrp_summary

Verify available space on disk group.

2) Create Thick LUN

There are 2 ways to create LUNs. We can use existing LUN which already in use as reference to create new LUNs with same confirguration

symconfigure -sid 123 -cmd "configure 2 devices copying dev 1234 overriding config=vdev;" preview/prepare/commit -nop -v

1234 is existing LUN. I am copying same configuration and creating 2 new LUNs

OR

symconfigure  -sid 123 -cmd "create dev count=6, size=2322 cal, emulation=FBA, data_member_count=3, config=RAID-5, disk_group=1;" commit -nop 

3) Create Storage group and add dev to group

symaccess -sid 123 create -name Boot_LUN -type stor -dev 1234;

4) Create Port group

symaccess -sid 845 create -name Boot_LUN -type port -dirport 3E:0, 13E:0, 4E:0, 14E:0

5) Create Initiator group

Creating Child and Parent Storage groups allows the user to use same child group nested under multiple parent groups

     a) Create Child group and set flags

               Create group and add host wwn's to child group

    

          symaccess -sid 123 create -name IG_Child -type init -wwn    20000012345678  ;

          symaccess -sid 123 -name IG_Child -type init add -wwn   200000123456787

            Adding flags C,SPC2  & consistent lun

           symaccess -sid 123 -name IG_Child -type init set ig_flags on C,SPC2 -enable ;

           symaccess -sid 123 -name IG_Child -type init set  consistent_lun on ;

   B)  Create Parent and set flags

            symaccess -sid 123 create -name IG_Parent -type init ;

            Enable C, SPC2

            symaccess -sid 123 -name IG_Parent -type init set ig_flags on C,SPC2 -enable ;

            Enable Consistent LUN

            symaccess -sid 845 -name IG_Parent -type init set consistent_lun on ;

     C) Add child IG groups to Parent IG Groups

            symaccess -sid 845 add -name IG_Parent -type init -ig IG_Child;

6)  Create Masking View

       Create Masking view  symaccess -sid 123 create view -name Boot_LUN  -sg Boot_LUN -pg Boot_LUN -ig IG_Parent -lun 0 ;