nfs client logs the errors NFS: filelayout_write_pagelist: prepare_ds failed, use MDS

Solution Verified - Updated -

Issue

  • We are using NetApp storage system - FAS8060 (ONTAP Version 8.2.2SP1) and we have activated pNFS.
  • When we are doing tests on client we get these pNFS messages showing up on client side.
"kernel: NFS: filelayout_write_pagelist: prepare_ds failed, use MDS"
  • System log file shows these errors:
nfs4filelayout_init: NFSv4 File Layout Driver Registering...
NFS: data server ac115014 connection error -110. Deviceid [10101800004c201] marked out of use.
NFS: filelayout_write_pagelist: prepare_ds failed, use MDS
NFS: filelayout_write_pagelist: prepare_ds failed, use MDS
NFS: filelayout_write_pagelist: prepare_ds failed, use MDS
NFS: filelayout_write_pagelist: prepare_ds failed, use MDS
NFS: filelayout_write_pagelist: prepare_ds failed, use MDS
NFS: data server ac115012 connection error -110. Deviceid [101018000047d0a] marked out of use.
NFS: filelayout_write_pagelist: prepare_ds failed, use MDS
NFS: filelayout_write_pagelist: prepare_ds failed, use MDS
NFS: filelayout_write_pagelist: prepare_ds failed, use MDS
NFS: filelayout_write_pagelist: prepare_ds failed, use MDS
NFS: filelayout_write_pagelist: prepare_ds failed, use MDS
NFS: filelayout_write_pagelist: prepare_ds failed, use MDS
NFS: filelayout_write_pagelist: prepare_ds failed, use MDS
NFS: filelayout_write_pagelist: prepare_ds failed, use MDS

Environment

  • Red Hat Enterprise Linux 6
  • NetApp storage system
  • pNFS

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