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tmghealth201
1 Copper

EMCOPY using a specific last modify date

Planning a Celerra to Isilon CIFS migration.  I am interested in only migrating maybe the last two years worth of data.  Does emcopy support a copy based on a specific last modify date?  Tried the /d:yyyymmdd, no go.  It would be a shame to have to use some other tool, I think emcopy does a great job with performance, NTFS security.

Forgot to mention, the vast majority of files in these shares have been archived using our EMC CTA.

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8 Replies
cadencep45
2 Iron

Re: EMCOPY using a specific last modify date

in my case ended up using robocopy for this very reason

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tmghealth201
1 Copper

Re: EMCOPY using a specific last modify date

Robocopy has no issues with CTA stub files?  The vast majority of files in this share have been archived by our CTA.  I'd hate to have these files recalled during the copy.

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cadencep45
2 Iron

Re: EMCOPY using a specific last modify date

ok, to be clear, this is being used in a Celerra -> Celerra copy not Isilon. I was referring to the lack of date logic in forcing robocopy rather than emcopy.

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tmghealth201
1 Copper

Re: Re: EMCOPY using a specific last modify date

It is Celerra to Isilon CIFS migration.  My intent of the post was to verify that emcopy does not have the ability to use date logic such as last access/modify date.  I appreciate your confirmation of this,, I've tried a few variations of /d:mmddyy, similar to what's used in Robocopy.

As for stub files, during my search I came across the post listed below.  Member refers to robocopy not understanding stub files and was forced to use emcopy.  Have you or has anyone else used robocopy on a large CIFS share that contained mostly CTA stub files?

https://community.emc.com/message/381824#381824

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Rainer_EMC
5 Rhenium

Re: Re: EMCOPY using a specific last modify date

I can confirm that emcopy doesnt implement copying files based on date

In terms of stub file handling it depends your DHSM backup mode setting

see the FileMover / DHSM Manual for more info

if that is set correctly and the copy tool invokes backup mode then only the stub is copied.

emcopy always uses backup mode - with robocopy you have to use a switch (/Archive I think)

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tmghealth201
1 Copper

Re: Re: EMCOPY using a specific last modify date


I've tried Robocopy with the /B (backup mode according to the help file), the stub files are recalled. 

Source Celerra Directory Properties >  Size: 2.72GB  Size on Disk: 5.62MB  (130 Files, 32 Folders)

Destination Isilon Directory Properties after Robocopy > Size: 2.72GB  Size on Disk: 2.74GB (130 Files, 32 Folders)

The /A switch copies only files with the Archive attribute set. 

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Rainer_EMC
5 Rhenium

Re: EMCOPY using a specific last modify date

Did you check what the DHSM backup mode is set on the VNX ?

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tmghealth201
1 Copper

Re: EMCOPY using a specific last modify date

Celerra Backup mode is set to passthrough.  I'm being told it should be set to offline?   If offline is correct, what are the implications of this for our regular backups and User access while the file share still resides on the Celerra?

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