US PATENT DOCUMENTS site, the mechanism marks the record as unreplicated.
Responsive to receiving an acknowledgement from the pri mary storage controller that the
data have been replicated to a 6,154,852. A 1 1/2000 Amundson et al. secondary storage
site, the mechanism erases the record in the

A mechanism is provided in a data processing system for asynchronous replication. The
mechanism creates a record in a write log in a host computing device for a write command
and marking the record as uncommitted. The mechanism maintains a copy of data to be
written by the write command at the host computing device. The mechanism issues the write
command from the host computing device to a primary storage controller at the primary
storage site. Responsive to receiving an acknowledgement from the primary storage …