[gpfsug-discuss] AFM Migration Issue

[Peter Childs]

Interesting, I'm currently doing similar but currently am only using read-only to premigrate the filesets,  The directory file stamps don't agree with the original but neither are they all marked when they were migrated. So there is something very weird going on..... (We're planning to switch them to Local Update when we move the users over to them)

We're using a mmapplypolicy on our old gpfs cluster to get the files  to migrate, and have noticed that you need a

RULE EXTERNAL LIST ESCAPE '%/'

line otherwise files with % in the filenames don't get migrated and through errors.

I'm trying to work out if empty directories or those containing only empty directories get migrated correctly as you can't list them in the mmafmctl prefetch statement. (If you try (using DIRECTORIES_PLUS) they through errors)

I am very interested in the solution to this issue.

Peter Childs
Queen Mary, University of London


________________________________________
From: gpfsug-discuss-bounces at spectrumscale.org <gpfsug-discuss-bounces at spectrumscale.org> on behalf of Paul.Tomlinson at awe.co.uk <Paul.Tomlinson at awe.co.uk>
Sent: Monday, January 9, 2017 3:09:43 PM
To: gpfsug-discuss at spectrumscale.org
Subject: [gpfsug-discuss] AFM Migration Issue

Hi All,

We have just completed the first data move from our old cluster to the new one using AFM Local Update as per the guide, however we have noticed that all date stamps on the directories have the date they were created on(e.g. 9th Jan 2017) , not the date from the old system (e.g. 14th April 2007), whereas all the files have the correct dates.

Has anyone else seen this issue as we now have to convert all the directory dates to their original dates !




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