How to check Mailbox Databases are Mounted

Use the below shell commands to find whether all the mailbox Databases in Exchange Organization are mounted

Get-MailboxDatabase -ResultSize Unlimted -Status | FT Name, Mounted

How the Database mount status on the particular server

Get-MailboxDatabase -Server "Server Name" | FT Name, Mounted

How to find database mount status of a particular database

Get-MailboxDatabase "Database Name" | FT Name, Mounted

You can use the above shell commands in Exchange Server 2010 and Exchange Server 2013