Patent ID: 11941301
Assignee: EMC IP HOLDING COMPANY LLC
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 18:
19. A method of upgrading data storage equipment, the method comprising:
connecting first circuitry in a first storage processor enclosure to second circuitry in a second storage processor enclosure while the first circuitry provides online access to data stored within a plurality of storage devices installed within the first storage processor enclosure;
moving the plurality of storage devices from the first storage processor enclosure to the second storage processor enclosure while the first circuitry provides online access to the data stored within the plurality of storage devices; and
after the plurality of storage devices is moved from the first storage processor enclosure to the second storage processor enclosure, disconnecting the first circuitry in the first storage processor enclosure from the second circuitry in the second storage processor enclosure while the second circuitry provides online access to the data stored within the plurality of storage devices;, wherein moving the plurality of storage devices from the first storage processor enclosure to the second storage processor enclosure includes:
within a predefined storage device failure time limit, losing communication with a particular storage device of the plurality of storage devices when the particular storage device is removed from the first storage processor enclosure and regaining communication with the particular storage device when the particular storage device is installed into the second storage processor enclosure to prevent initiation of a rebuild procedure configured to rebuild the particular storage device.