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What is a VMAX?

VMAX - Virtual Matrix Architecture, short for "Symmetrix VMAX," is a family of high-end storage systems developed by Dell EMC (formerly EMC Corporation). VMAX systems are known for their scalability, high performance, and reliability, making them suitable for large enterprises and data centers with demanding storage requirements. VMAX storage systems offer features such as advanced data protection, disaster recovery, and integration with virtualization technologies.

VMAX Storage Allocation Steps:



















  
SymCLI Commands

 
  
Device Mapping:

  
Check if a specific device is not mapped to a Front-End port

  
symdev -sid 1234 list -noport -range <Dev1:Dev10>

  
symdev -sid 1234 list -noport


  
Front-end Port Mapping

  
List devices mapped to a Front-end Port with no masking per port

  
  
symaccess -sid 1234 list -no_assignment -dirport 10g:1

  
List devices mapped to a Front-end Port with no masking all ports

  
  
symaccess -sid 1234 list -no_assignment


  
Masking View and Initiator Group

  
Show maskingview assignments for a device

  
  
symaccess -sid 1234 list assignment -dev 1c5c

  
List All WWNs/hosts/initiators logged into a FA

  
  
symaccess -sid 1234 list logins -dirport 11e:0


  
To view a particular server masking view

  
  
symaccess -sid 1234 show view "masking view name"

  
Storage Group

  
  
List All Storage Groups that a device belongs to

  
  
symaccess -sid 1234 list -type storage -dev DEV01:DEV10

  
Assigning devices to Storge group while creating the Storage Group

  
  
symaccess create -name "groupname" -type storage devs DEV01:DEV10

  
Assigning devices belongs to an existing Storage Group

  
symaccess -sid 1234 -name SERVERNAME_SG add -type storage dev DEV01

  
Removing / unallocating device from Storage Group

  
symaccess -sid 1234 -type storage -name STORAGEGROUPNAME remove devs xxx,xxx,xxx,xxx


  
Thin Pools

  
List all thin pools on an array

  
symcfg -sid 1234 list -pool -thin -detail

  
  
Monitor a particular thinpool

  
symcfg monitor -sid 1234 -thin -pool PoolName -mb


  
  
Port Group Management

  
Creat PortGroup and assign ports while creating PG


  
symaccess -sid 1234 create -name ServerName_PG -type port -dirport 7a:0

  
Assign ports to existing portgroup ServerName_PG


  
symaccess -sid 1234 -name ServerName_PG add -type port -dirport 10a:0


  
Initiator Group Management

  
Create initiator group and assign host wwn


  
symaccess -sid 1234 create -name ServerName_IG -type initiator -wwn XXXXXXXXXXXXXXXX1

  
Add host wwns to existing Initiator group


  
symaccess -sid 1234 -name ServerName_IG add -type initiator -wwn XXXXXXXXXXXXXXXX2

  
Replace wwn in masking database ( helpful when replacing failed HBA's)

  
symaccess -sid 1234 replace OLD_WWN -new_wwn NEW_WWN

  

  
Masking View Management

  
symaccess -sid 1234 create view -name ServerName_MV -sg ServerName_SG -pg ServerName_PG -ig ServerName_IG 


  
Monitoring and Troubleshooting

  
symstat -sid 1234

  
symevent -sid 1234 list

  
symcfg list -sid 1234


  
Data Migration

  
symmir -sid 1234 -g my_mir_group establish dev 0123 dev 0456

  
symrdf -sid 1234 -rdfg my_rdf_group establish -full dev 0123 dev 0456


  
Performance Tuning

  
symfast -sid 1234 allocate -capacity 1000 -pool my_pool -type striped -prealloc enable
    
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