.\" Copyright (c) 2018 Rick Macklem .\" .\" Redistribution and use in source and binary forms, with or without .\" modification, are permitted provided that the following conditions .\" are met: .\" 1. Redistributions of source code must retain the above copyright .\" notice, this list of conditions and the following disclaimer. .\" 2. Redistributions in binary form must reproduce the above copyright .\" notice, this list of conditions and the following disclaimer in the .\" documentation and/or other materials provided with the distribution. .\" .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE .\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" .Dd June 2, 2018 .Dt PNFSDSCOPYMR 8 .Os .Sh NAME .Nm pnfsdscopymr .Nd copy or move a data storage file for a MDS file to a different DS .Sh SYNOPSIS .Nm .Op Fl r Ar mounted-on-DS-dir .Op Fl m Ar source-mounted-on-DS-dir destination-mounted-on-DS-dir .Ar mdsfile .Sh DESCRIPTION The .Nm command copies a data storage file for an MDS file from one DS to another DS. It is normally used to recover data files onto a repaired DS, but can also be used to manually migrate a data storage file from one DS to a different one. By default, the command will copy the data storage file for .Dq mdsfile to one of the other DSs to create a mirror of it. This might be done if the file was created before mirroring was enabled on the pNFS service and now needs to be mirrored. .Pp The following options are available: .Bl -tag -width Ds .It Fl r Ar mounted-on-DS-dir This option indicates that the data storage file should be created on the DS that is mounted on the directory .Dq mounted-on-DS-dir . It will only do the copy if there is an entry in the pnfsd.dsfile extended attribute that has an IP address of 0.0.0.0. See .Xr pnfsdsfile 1 for how to do this. This is normally done for all regular files via .Xr find 1 in order to recover the data storage files onto a repaired DS. .It Fl m Ar source-mounted-on-DS-dir destination-mounted-on-DS-dir This option indicates that the data storage file is to be migrated from the source DS mounted on the diectory .Dq source-mounted-on-DS-dir to the DS mounted on the directory .Dq destination-mounted-on-DS-dir . In this case, the data storage file will be removed from the source DS when the copy is completed. .El If the copy/migration is already done, the command will simply exit(0), so that it can safely be used on all regular files in the exported directory tree on the MDS. .Pp This command must be run on the MDS and a typical usage would be as an argument for .Xr find 1 for all regular files. .sp For example, if the repaired DS is mounted on /data3 and files previously stored on the repaired DS have had the DS's IP address set to 0.0.0.0: .br # cd .br # find . -type f -exec pnfsdscopymr -r /data3 {} \\; .Sh SEE ALSO .Xr find 1 , .Xr nfsv4 4 , .Xr pnfs 4 , .Xr nfsd 8 , .Xr pnfsdsfile 8 , .Xr pnfsdskill 8 .Sh HISTORY The .Nm command first appeared in .Fx 12.0 .