Abstract:
In March, Iran used drones and missiles to attack Amazon AWS data centers in the United Arab Emirates and Bahrain in the Middle East conflict. After that, Amazon recommended that affected customers migrate to other available data centers in the surrounding area. Then Amazon has not released an update log to explain the situation of these data centers for a long time.
It has been confirmed that resources and data cannot be recovered:
The infrastructure repair that lasted for half a year has not allowed all customers to resume business. Amazon recently updated the AWS status page to explain the situation of the Bahrain data center and the MEC1-AZ2 availability zone in the United Arab Emirates. Simply put, all resources and data in the Bahrain data center cannot be restored, and some availability zones in the UAE data center cannot restore data.
Amazon plans to replace damaged hardware in other affected availability zones in the UAE to try to restore access to the availability zone, but MEC1-AZ2 currently has no clear maintenance plan, which means that there is a high probability that this affected availability zone will be shelved for a long time, and if customers do not have data backup, they will not be able to restore data.
The Bahrain data center is more severely affected:
AWS's two infrastructures in the UAE were directly hit, but judging from the current situation, the impact on the availability zone in the UAE is not very serious. On the contrary, the Bahrain data center was more seriously affected after being attacked by drones. At that time, Amazon said that the power supply, network and equipment of the Bahrain data center were damaged.
Now Amazon admits that the infrastructure of the Bahrain data center spans multiple availability zones, exceeding the originally designed endurance range of other regional and multi-availability zone services. That is, all the availability zones used for mutual redundancy are damaged, so Amazon cannot help customers recover data.
The affected availability zones in the United Arab Emirates mainly rely on customers to back up their data. If the customer does not back up data across zones before the attack, all the saved data will be inaccessible. Simply put, multiple availability zones do not mean cross-region disaster recovery. Real disaster recovery requires cross-region redundancy.
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