Exchange 2019 - Corrupt Database

[Bankesy]

Good morning,

 

Struggling to troubleshoot a corrupt database, from ECP I get the following error when I try to mount the database:

 

Failed to mount database "MyDatabase". Error: An Active Manager operation failed. Error: The database action failed. Error: Operation failed with message: MapiExceptionDatabaseError: Unable to mount database. (hr=0x80004005, ec=1108) Diagnostic context:Lid: 65256Lid: 10722 StoreEc: 0x454Lid: 1047 StoreEc: 0x454 [Database: MyDatabase, Server: MyServer]

 

Trying to understand how eseutil can help me with this but not getting very far, probably because I deleted the associated log files (no I didn't have them backed up)

 

I'm thinking just restore the database from a backup?

 

Any ideas?

 

Thanks

[chaplic]

Phone microsoft.

 

Eseutil /mh against the database will tell you if its dirty which it might be if you have deleted log files (why)

 

Take a file-copy of the file with no exchange services running. When is the last time you done a sucessful test restore

 

phone Microsoft.

[HPlum78]

Did any one say phone microsoft?

[chaplic]

Subtle I know. Even less subtle would have been to say I’ve been involved with Exchange since version 5 and every version in between and at some point in the past clients would pay lots of money to parachute me in to solve issues exactly like this. Phone Microsoft.

[HPlum78]

Sorry @chaplic was not being funny with u there I agree best way to go for sure (and version 4 :-D)

[Bankesy]

@chaplic

@HPlum

 

Is there a correct number to phone? Seems like most of Microsoft's help is for Office 365 stuff.

 

I don't think I'm that far off recovering it, got the database and log files from a backup restored to original location but now eseutil says the current logs are missing.

[psydii]

https://support.microsoft.com/en-us/topic/microsoft-professional-support-pay-per-incident-faq-575821bc-17bb-7484-4935-334c5437639f

 

https://support.serviceshub.microsoft.com/supportforbusiness/create

[Bankesy]

Think I'm almost there now with the recovery

 

Thanks everyone

[kevin_lane]

Think I'm almost there now with the recovery

 

Thanks everyone

 

Could you share with the group on your recovery and what you did ?

[Bankesy]

@kevin_lane

 

I'll try and remember the steps I took and the articles I read but it basically involved recovering the database and log files from a backup to an alternative location (not the original) then running a lot of eseutil commands to repair the database\logs before copying them back to their original location. Once the database was stable (no longer in dirty shutdown) I migrated mailboxes to the other onsite databases or cloud (because luckily we are in hybrid anyway).

 

I had a lot of help from consultants and people that know a lot more than me.