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March 24th, 2011 11:00
Verify EMX Files
I have an EmailXtender 4.81.2031 environment that stores the container files (.emx files) on an extended disk. DiskXtender 6.3 in turn archives the EX container files to a Centera. We have recently upgraded all of our storage equipment and are now in the process of decommissioning the Centera's and DiskXtender. This requires me to move the EX container data to another non-extended disk. EMC support instructed me to migrate the EX data from the Centera by simply copying the data to the new drive. After I copied the data and reconfigured EmailXtender to point the new container drive, everything seemed to work OK.
However, after doing some tests via the search console.....several of the emails could not be opened because they could not be found in the newly copied container files. The EMC support engineer decided to re-copy the suspect containers from the Centera to the new drive, and after doing so everything worked fine. The thing is.....the suspect .emx files had the exact same size and timestamps as the good files.
Is there a utility of any kind that can check each .emx file and verify whether or not it is corrupt? I can recopy all the data again, but there is no guarantee that I won't encounter this problem again. We have over 25k containers.....and I need someway to make sure they all copy over successfully and the data is valid.
Does anyone have any ideas?
DanJost
190 Posts
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March 25th, 2011 08:00
How are you copying the files? Some copy utilities are stub-aware and will only copy the stub file and you end up with files with the "O" attribute set. By default Explorer doesn't show file attributes unless you add it as a column. You need to make sure ALL of the files you move off the extended drive are the actual files and not the stubs. Depending on your DX policy, some of the files may get recalled back to primary storage when they are read but most likely they are pass-thru which means they come off the centera to the client and never put back on primary storage. Extended drives are usually oversubscribed so recalling ALL of the files back to primary storage is generally not an option...When we decomissioned our DX for Windows environment I resorted to XCOPY which took forever but worked just fine
sdesrosi1
70 Posts
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April 6th, 2011 05:00
As the previous poster said, I suspect you only copied the "stubs" and not the actual full container files.
I would contact EMC DiskXtender support and have them take a look at this with you.
To Answer your Original Question, EmailXtender does not have a utility that is "user friendly" to test the validity of the EMX Files. We do have a utility that allows you to unpack the messages from the EMX files, however it is done one EMX file at a time. It would be quite a task to do so for over 25K EMX Files.
Regards
Stephane
viral84
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3 Posts
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May 15th, 2025 16:41
Hello,
what is the name of utility that can help to export message file from .emx.
We wanted to export messages from emx file but can not find any utility or command line tool that can help.
we do have EMC SourceOne installation at our end, so if you can provide how we can do this task this will be helpfull.
one more question, we able to export some buffer files from emx file, what is this buffer file stand for and how to create msg file from that ?
please suggest.
Thanks