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cecida

15 Posts

2072

April 1st, 2009 09:00

Creating devices from raw with dynamic RDF attribute.

Hi folks,

I am trying to run a symconfigure command to create devices from raw storage, RAID-5 devices. I would also like to make the device dynamic RDF devices:

symconfigure -sid xxx -file david.txt -noprompt prepare

where the file contains:

create dev count=800,size=18600,emulation=FBA,config=RAID5,disk_group=3,dynamic_capability=dyn_rdf;

but am getting back a message saying that the "The dynamic rdf attribute is only available when creating RDF devices". I do see an option to specify a RA group, but I just want the dynamic attribute set on the device, not pairings created, as the eventuial pairing could be to 7 different syms. What am I doing wrong, or is this possible? Or do I have to do a conversion once the devices have been created?

David

xe2sdc

2 Intern

 • 

2.8K Posts

April 2nd, 2009 03:00

You need to create RAID5 devices at first and later add "dynamic RDF" attribute.

First step:

create dev count=800,size=18600,emulation=FBA,config=RAID5,disk_group=3;

Second step:

set dev 0BAD:0ECD attribute=dyn_rdf;

dynamox

9 Legend

 • 

20.4K Posts

April 2nd, 2009 04:00

a couple of days ago i tried the same thing David did ..just to get the same error message. If i look at man page for symconfigure and search for "create" ..."dynamic_capability =" option is listed right under "create" as if it were one of the options you can specify when creating new devices. Very misleading

xe2sdc

2 Intern

 • 

2.8K Posts

April 2nd, 2009 05:00

Dynamox if you read carefully the docs you can easily notice that the "dynamic_capability" is available only when creating both R1 and R2 devices issuing a single symconfigure that changes a couple of binfiles on a couple of RDF-paired boxes ..

Note that dynamic_capability is available only when used with remote_config, ra_group and remote_data_member_count options :-)

create dev count=n, size=Cylinders,
  size=n [MB |GB | CYL]
  emulation=EmulationType,
  config=DeviceConfig,
  [, data_member_count=nn]
  [, remote_config=DeviceConfig,
      remote_data_member_count=nn,
      ra_group=n, [remote_mvs_ssid=nnn],
      [dynamic_capability=[dyn_rdf | dyn_rdf1_only | dyn_rdf2_only], ]
  [, mvs_ssid=nnn]
  [, attribute=ckd_meta | savedev | datadev
  [in pool PoolName] [member_state=ENABLE | DISABLE], ]
  [, disk_group_num=nnn, remote_disk_group_num=nnn]
  [, binding to pool=PoolName
  [preallocate size=n [MB |GB | CYL]
  [remote_pool=PoolName]];


Having that said, I also found the docs a little unclear and I also had your same issue .. simply a few weeks earlier ;-)

Boom1

131 Posts

January 13th, 2010 16:00

is it so?

sorry i know i am too late but just for clarification........

try this.....

create dev count=2,size=9660, emulation=FBA, config=raid-5, data_member_count=3, dynamic_capability=dyn_rdf;

Sanjit1

45 Posts

June 17th, 2010 06:00

Make sure that the dynamic_rdf parameter must be set in

your Symmetrix configuration.

set Symmetrix dynamic_rdf = ENABLE

Thank you

Sanjit Achary

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