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Can we run many ESEUTIL at the same time in Exchange 2003?

Can we run many ESEUTIL at the same time in Exchange 2003?

Like ESEUTIL /P or /D
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SAM2009
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SAM2009
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3 Solutions
 
JdtuckCommented:
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Stelian StanNetwork AdministratorCommented:
Yes, you can run multiple offline defragmentation instances at the same time, HOWEVER, the performance is greatly affected when running multiple eseutil instances (because of disk I/O).
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lucid8Commented:
I would highly reccomend that you NOT attempt to run multiple /P nor /D sessions.  These commands are both very I/O intensive and they actually make calls into ESE.DLL to do the actual work against a database.
Our firm specializes in solutions around Exchange databases so I know what I am talking about and we have actually done a great deal of work around this very issue. Yes I know its very tempting to want to run multiple instances in order to gain some type of efficiency but its simply not worth it and you will more than likley cause more problems then you solve.
Short story dont do it.  You might in some instances get away with running multiple sessions  but then again you may not and when failures occur you will actually lose time and we have also seen databases become damaged so think about it, do you really want to take that chance with your Exchange databases?  Take your time, one database and one command at a time.
Troy Werelius
Lucid8.com
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SAM2009Author Commented:
So the best thing is  tocopy bin file from Exchange server and run ESEUTIL on different srevers?
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lucid8Commented:
You could do that but what do you really gain, i.e. you are going to spend allot of time copying the databases back and forth so???
What are you really trying to accomplish here?
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Stelian StanNetwork AdministratorCommented:
A agree with lucid8, I don't see a good reason to do that.
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SAM2009Author Commented:
Hummm guys I have 8 databases dirty shudown :)))....

I can't wait to repair them one by one...that why I'm trying to run ESEUTIL on 2 servers.
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lucid8Commented:
  1. How big are the databases?
  2. You certainly can move them around to other servers to run the /P but again I am not convinced you are going to save allot of time
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SAM2009Author Commented:
More than 90 Go..:)))
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lucid8Commented:
  1. IMO I would focus on getting ONE Database up at a time.
  2. I realize that you are anxious, but taking the needed time to ensure accuracy and consistency  is the way to go here.
  3. Now if you want to get people up and running ASAP you could do a dial tone restore i.e.
    • Move the databases and logs off the server or at least to a new directory.
      • If space is not an issue you can also consider renaming the existing directory where the databases and logs exist and then recreate the blank directory
    • Next mount the databases in the management console
    • Exchange will squawk saying the files are missing and you will create  new databases if you continue
    • say yes and new databases will be created
      • your users can now start sending and receiving email
      • Ensure your backups are working
    • Ensure you have a COPY of the damaged databases, i.e. NEVER work on your only copy
    • Then  run ESEUTIL /P against each of the old database one at a time
    • Then load the databases up in RSG to recover or export the data OR alternatively you can use a third party product like Lucid8's DigiScope to open, browse, export and recover data direct from the offline database into the Production server to backfill the users historical data
Troy Werelius
Lucid8.com
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SAM2009Author Commented:
I see but if I do that as soon as Outlook users will synch with Exchange in dial-up mode they will lose all their emails in Outlook no?
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lucid8Commented:
Yes that would be correct if they are using OSTs they would need to sync a new OST up.  Really no perfect answer, just depends upon whats most important, i.e. time to get operating again vs timely access to historical data
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Stelian StanNetwork AdministratorCommented:
Even if they are using OST file but if your users are running Outlook in cache mode they will still have all the emails.
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lucid8Commented:
If they are in CACHED mode they will have an OST.  Once the new database is created the OLD OST will not sync to the new database.   They can of course connect OFFLINE to the old PST to get to historic data, but they cant have access to the live database and old OST at the same time.  
I suppose they could open the OST in offline mode now and export everything to PST and then they could have access to the NEW dial toned EDB as well as the historical data in the PST but thats allot of gyrations for remote users
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SAM2009Author Commented:
Thank you very much for all your recommendations its will help me make a decision. Thanks again!
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