A customer currently uses tape-based DR with 48-hour RTO. They want

The customer's primary goal is to reduce their Recovery Time Objective (RTO) from 48 hours to less than one hour. This requires moving from a slow, manual, tape-based Disaster Recovery (DR) process to a faster, automated, disk-based solution. HPE StoreOnce with Catalyst replication provides this capability. Data is backed up to a local StoreOnce appliance and then efficiently replicated over the network to a second StoreOnce appliance at the DR site. In a disaster, the data is immediately available on disk for rapid recovery, enabling an RTO of under one hour, which is impossible with traditional tape transport and restore methods.

B. Continue with tape libraries: This is the customer's current solution, which provides a 48-hour RTO and cannot meet the new requirement of less than one hour.
C. Weekly manual database dumps: This process is unreliable, not comprehensive for a full DR scenario, and primarily addresses the Recovery Point Objective (RPO), not the RTO.
D. HPE Aruba ClearPass: This is a Network Access Control (NAC) solution for network security and policy enforcement; it is completely unrelated to data backup or disaster recovery.

1. HPE StoreOnce Systems Technical Paper (Document ID: a00094648enw, Published: May 2020):

Section: Disaster recovery with HPE StoreOnce replication, Page 11: "HPE StoreOnce replication provides an automated, cost-effective disaster recovery solution. Replicating backup data to a remote site means that in the event of a disaster at the primary site, data can be restored from the remote site, enabling the business to continue operations. This is a much faster and more reliable process than transporting tapes to a DR site." This directly contrasts the speed of StoreOnce replication with slower tape methods, supporting the RTO reduction.

2. HPE StoreOnce Best Practices (Document ID: a00017429enw, Published: April 2017):

Section: Replication for disaster recovery, Page 18: "HPE StoreOnce replication provides an automated, cost-effective disaster recovery solution... In the event of a disaster, data can be restored from the remote site, enabling the business to continue operations." The automation and disk-based nature of this solution are key to achieving a low RTO.

3. HPE StoreOnce Catalyst: A Technical Overview (Document ID: 4AA4-6107ENW, Published: March 2015):

Section: Catalyst Copy, Page 6: "Catalyst Copy allows the backup application to control the movement of backup data sets from one StoreOnce system to another... This provides an efficient and flexible disaster recovery solution." The control and efficiency provided by Catalyst are crucial for a reliable, fast DR process that meets aggressive RTOs.