I am having a Database Content Index issue with Exchange Mailbox Server. When I tried to move some mailboxes from one database to another, it won't start and I get some message from Get-MoveRequestStatistics shown below:
Resource reservation failed for 'DATABASE_NAME/MdbWrite' (CiAgeOfLastNotification(“DATABASE_NAME”)): load ratio 1.79769313486232E+308, load state 'Critical', metric 161625. This resource is currently unhealthy.
However, the ContentIndexStatus from Get-MailboxDatabaseCopyStatus is still in healthy state. Then, I found that the metric value in this message is the same as ContentIndexBacklog from Get-MailboxDatabaseCopyStatus. Most of my databases (70~80%) have a large value ContentIndexBacklog, when others remains 0.
I have tried reseeding the database, but that didn't help. Does anybody has any thoughts/experiences about this situation?