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Move data to smaller file system
Originally I provisioned a 500GB NFS file system for a service, they are currently using 230GB. I would like to create a new FS of 250GB and enable thin to make it look like 500GB and move their data to the new system and save the space to be used elsewhere. I want to do this in the background with the only host interaction being unmounting the old FS and mounting the new one when it is ready.
Obivously I don't want to use a block level copy, but a file level copy and I want to be able to perform the processing on the DM itself. I am using NFS only.
Any assistance is very much appreciated.
John
BillStein-Dell
Moderator
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285 Posts
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Posted March 11th, 2010 14:00
You could also use server_archive, which is probably easier:
server_archive server_2 -r -w -J/dir1 /dir2
The -J tag retains CIFS extended attributes during the copy.
Thanks for the contributions everybody.
I don't need anything to do with CIFS or multiprotocol since I am onlys using NFS. I guess the server_archive command is the consensus best way to go about it. I will give it a try, there seem to be a lot of options with this command.
Rainer_EMC
6 Operator
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8645 Posts
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Posted March 15th, 2010 15:00
If its just NFS data you can use rsync/rdist from an NFS client as well
with a fast NFS client it can be as fast as server_archive
urle
48 Posts
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Posted March 11th, 2010 13:00
CDMS if you're not using multiprotocol. To avoid these situations I combine
different filesystems into one larger and use different exports and tree
quota for access and space management.