RPC 33: MDS GETATTR - Get MDS Attributes
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[[mds-getattr-rpc]]

Get attribute information for a resource on an MDT.

.MDS_GETATTR Request Packet Structure
image::mds-getattr-request.png["MDS_GETATTR Request Packet Structure",height=50]

//////////////////////////////////////////////////////////////////////
The mds-getattr-request.png diagram resembles this text art:

       MDS_GETATTR:
      --request-------------------------------
      | ptlrpc_body | mdt_body | lustre_capa |
      ----------------------------------------
//////////////////////////////////////////////////////////////////////

'ptlrpc_body'::
RPC descriptor. See <<struct-ptlrpc-body>>.

include::struct_mdt_body.txt[]

'lustre_capa'::
A "capabilities" structure. See <<struct-lustre-capa>>.

.MDS_GETATTR Reply Packet Structure
image::mds-getattr-reply.png["MDS_GETATTR Reply Packet Structure",height=50]

//////////////////////////////////////////////////////////////////////
The mds-getattr-reply.png diagram resembles this text art:

       MDS_GETATTR:
      --reply----------------------------------------------
      | ptlrpc_body | mdt_body | MDS_MD | ACL | fid1_capa |
      -----------------------------------------------------
      | fid2_capa |
      ---------------
//////////////////////////////////////////////////////////////////////

'ptlrpc_body'::
RPC descriptor. See <<struct-ptlrpc-body>>.

'mdt_body'::
Metadata about the resource. See <<struct-mdt-body>>.

MDT_MD::
Needs more detail.

ACL::
Needs more detail.

'fid1_capa'::
The capabilities structure for the first FID in the 'mdt_body'. See
<<struct-lustre-capa>>.

'fid2_capa'::
The capabilities structure for the second FID in the 'mdt_body'. See
<<struct-lustre-capa>>.