Which storage type was implemented if the first administrator is unable to connect to two servers simultaneously?

When the first administrator is unable to connect to two servers simultaneously, the storage type being used is most likely Direct Attached Storage (DAS). DAS refers to storage devices that are directly connected to a single server or computer, such as internal hard drives or external USB drives. As a result, only the server that is physically attached to the storage can access the data stored on it. This means that if one server is connected, the other cannot access the same storage, leading to the situation described.

In contrast, Network Attached Storage (NAS) provides shared storage over a network, allowing multiple servers to access the same storage resources at the same time. A Virtual Storage Area Network (VSAN) allows multiple servers to connect and access shared storage resources, while a Storage Area Network (SAN) offers a high-speed network that connects storage devices to servers, enabling multiple servers to access a centralized storage pool. These storage types support simultaneous access by multiple servers, which is not the case with DAS.