公开(公告)号：US20220342730A1

公开(公告)日：2022-10-27

申请号：US17860719

申请日：2022-07-08

Applicant: Cisco Technology, Inc.

Inventor： Nivin Lawrence ,  Sandesh K. Rao ,  Manikandan Veerachamy ,  Amit Chandra ,  Tushar Sinha ,  Manoj Kumar ,  David W. Duffey

IPC: G06F9/54

Abstract: The present disclosure is directed to seamless access to a common physical disk in an AMP system without an external hypervisor, and includes one or more processors and one or more computer-readable non-transitory storage media comprising instructions that, when executed by the one or more processors, cause one or more components of the system to perform operations including instantiating, by a first instance, a second instance during a system upgrade, creating, in the first instance, a first disk abstraction for a block device of a physical disk, and attaching the block device under the first disk abstraction. The operations further include providing the second instance network-based access to the physical disk using the first disk abstraction of the first instance during the system upgrade.

公开(公告)号：US20210173726A1

公开(公告)日：2021-06-10

申请号：US17103061

申请日：2020-11-24

Applicant: Cisco Technology, Inc.

Inventor： Nivin Lawrence ,  Sandesh K. Rao ,  Manikandan Veerachamy ,  Amit Chandra ,  Tushar Sinha ,  Manoj Kumar ,  David W. Duffey

IPC: G06F9/54

Abstract: The present disclosure is directed to migrating logical volumes from a thick provisioned layout to a thin provisioned layout, and includes one or more processors and one or more computer-readable non-transitory storage media comprising instructions that, when executed by the one or more processors, cause one or more components of the system to perform operations comprising creating an abstraction layer on top of a logical volume in a storage device, the abstraction layer for accessing the logical volume, the logical volume one of a plurality of logical volumes in a volume group of the storage device; allocating a thin pool from remaining storage space in the volume group of the storage device; creating a snapshot of the logical volume; adding a thin virtual volume corresponding to the logical volume to the thin pool; and copying data from the snapshot to the thin virtual volume.

公开(公告)号：US11748180B2

公开(公告)日：2023-09-05

申请号：US17860719

申请日：2022-07-08

Applicant: Cisco Technology, Inc.

Inventor： Nivin Lawrence ,  Sandesh K. Rao ,  Manikandan Veerachamy ,  Amit Chandra ,  Tushar Sinha ,  Manoj Kumar ,  David W. Duffey

IPC: G06F9/54

CPC classification number: G06F9/544

Abstract: The present disclosure is directed to seamless access to a common physical disk in an AMP system without an external hypervisor, and includes one or more processors and one or more computer-readable non-transitory storage media comprising instructions that, when executed by the one or more processors, cause one or more components of the system to perform operations including instantiating, by a first instance, a second instance during a system upgrade, creating, in the first instance, a first disk abstraction for a block device of a physical disk, and attaching the block device under the first disk abstraction. The operations further include providing the second instance network-based access to the physical disk using the first disk abstraction of the first instance during the system upgrade.

公开(公告)号：US11385947B2

公开(公告)日：2022-07-12

申请号：US17103061

申请日：2020-11-24

Applicant: Cisco Technology, Inc.

Inventor： Nivin Lawrence ,  Sandesh K. Rao ,  Manikandan Veerachamy ,  Amit Chandra ,  Tushar Sinha ,  Manoj Kumar ,  David W. Duffey

IPC: G06F12/10 ,  G06F9/54

Abstract: The present disclosure is directed to migrating logical volumes from a thick provisioned layout to a thin provisioned layout, and includes one or more processors and one or more computer-readable non-transitory storage media comprising instructions that, when executed by the one or more processors, cause one or more components of the system to perform operations comprising creating an abstraction layer on top of a logical volume in a storage device, the abstraction layer for accessing the logical volume, the logical volume one of a plurality of logical volumes in a volume group of the storage device; allocating a thin pool from remaining storage space in the volume group of the storage device; creating a snapshot of the logical volume; adding a thin virtual volume corresponding to the logical volume to the thin pool; and copying data from the snapshot to the thin virtual volume.