I had the following problems running mysql upgrade script:

Adding zimbra.deleted_account to be optimized
Adding zimbra.mailbox_metadata to be optimized
Adding zimbra.out_of_office to be optimized
Adding zimbra.config to be optimized
Adding zimbra.table_maintenance to be optimized
Adding zimbra.scheduled_task to be optimized
Adding zimbra.mobile_devices to be optimized
Mon Dec 5 15:42:06 2011: DB: ALTER TABLE ENGINE = InnoDB mboxgroup81.data_source_item;: Error on rename of './mboxgroup81/data_source_item' to './mboxgroup81 / # sql2-3917-38' (errno: - 1)

Died at / opt / zimbra / libexec / scripts / Migrate.pm line 362, line 100 <output>.
[Root @ zimbra2 ~] # Mon Dec 5 15:42:06 2011: DB: mboxgroup45.open_conversation ALTER TABLE ENGINE = InnoDB;: Got error -1 from storage engine

Mon Dec 5 15:42:06 2011: DB: ALTER TABLE ENGINE = InnoDB mboxgroup27.imap_folder;: Error on rename of './mboxgroup27/imap_folder' to './mboxgroup27 / # sql2-3917-3b' (errno: - 1)

Mon Dec 5 15:42:06 2011: DB: ALTER TABLE ENGINE = InnoDB mboxgroup36.imap_message;: Error on rename of './mboxgroup36/imap_message' to './mboxgroup36 / # sql2-3917-3f' (errno: - 1)

Mon Dec 5 15:42:06 2011: DB: ALTER TABLE ENGINE = InnoDB mboxgroup54.pop3_message;: Error on rename of './mboxgroup54/pop3_message' to './mboxgroup54 / # sql2-3917-37' (errno: - 1)

Mon Dec 5 15:42:06 2011: DB: ALTER TABLE ENGINE = InnoDB mboxgroup91.mail_item;: Got error -1 from storage engine

Mon Dec 5 15:42:06 2011: DB: ALTER TABLE ENGINE = InnoDB mboxgroup1.mail_item;: Got error -1 from storage engine

Mon Dec 5 15:42:06 2011: DB: ALTER TABLE ENGINE = InnoDB mboxgroup18.appointment;: Got error -1 from storage engine

Mon Dec 5 15:42:06 2011: DB: ALTER TABLE ENGINE = InnoDB mboxgroup72.tombstone;: Error on rename of './mboxgroup72/tombstone' to './mboxgroup72 / # sql2-3917-39' (errno: - 1)

Mon Dec 5 15:42:06 2011: DB: ALTER TABLE ENGINE = InnoDB mboxgroup63.revision;: Error on rename of './mboxgroup63/revision' to './mboxgroup63 / # sql2-3917-40' (errno: - 1)