3 results about "Device removal" patented technology

In one aspect, a computing device is configured to, while operating as a control device of a networked media playback system that includes a first set of network devices and a second set of network devices, (i) transmit a first message to each network device in the first set of network devices, wherein the first message comprises a command to, at a first time, temporarily disconnect from the computing device via a particular communication protocol, (ii) transmit a second message to each network device in the second set of network devices, wherein the second message comprises a command for the network device in the second set of network devices to, at a second time, test connectivity with the computing device; and (iii) after the second time, determine whether each network device in the second set of network devices was connected to the computing device.

Sharing encryption information amongst storage devices in a storage system, including: detecting that one or more source storage devices has been designated for removal from the storage system; and responsive to detecting that the source storage devices have been designated for removal from the storage system: encrypting a device key for each remaining storage device using a master secret to generate an encrypted device key for each remaining storage device; generating, for each write group, a first plurality of shares from the master secret; creating, from each share of the first plurality of shares, a second plurality of shares equal to a minimum number of the remaining storage devices required from each write group for a quorum to boot the storage system; and storing, for each remaining storage device, the encrypted device key and a respective share of the second plurality of shares in the remaining storage devices.