Unlock instant, AI-driven research and patent intelligence for your innovation.

Virtual Band Centralization for Self-Encrypting Drives

A technology for encrypting keys and virtual media, applied in the field of storage systems

Active Publication Date: 2020-04-21
LSI CORP
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A single LBA range or band limitation makes it difficult for certain types of applications (e.g., virtual machines - VMs) to fully benefit from SED deployments, since VMs may require many (perhaps thousands) of bands to achieve relatively flexible and flexible storage. Efficient use

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Virtual Band Centralization for Self-Encrypting Drives
  • Virtual Band Centralization for Self-Encrypting Drives
  • Virtual Band Centralization for Self-Encrypting Drives

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] Embodiments of the present invention include providing a Virtual Band Centralization (VBC) for self-encrypting drives that can (i) implement a Virtual Band Manager (VBM) as part of a Virtual Machine Manager (VMM); (ii) Generate media encryption keys on an input / output (I / O) basis; (iii) support thousands of virtual stripes with hardware encryption / decryption; (iv) facilitate virtual machine migration; (v) on a per-strip basis Enable cryptographic erasure; (vi) reduce the number of stripes that the SED needs to support while still supporting multiple virtual stripes on the host side; (vii) pool the first number of virtual stripes into a significantly smaller second number of real in-band; and / or (viii) allow verification data to be provisioned by the host for each read / write operation.

[0015] In various embodiments, a method and / or apparatus for dynamically generating unique media encryption keys (MEKs) for multiple data strips is provided. The term "data stripe" (or ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

This application relates to virtual tape collection for self-encrypting drives. An apparatus includes a storage device and a host device. The storage device can be configured to encrypt and decrypt user data during write and read operations, respectively. The host device is communicatively coupled to the storage device. The host device may be configured to perform the write and read operations by pooling a first number of virtual stripes into a second number of real stripes, wherein the second number is less than the first number.

Description

[0001] Related Application Cross Reference [0002] This application is related to US Provisional Application No. 61 / 870,936, filed August 28, 2013, which is hereby incorporated by reference in its entirety. technical field [0003] The present invention relates generally to storage systems and, more particularly, to a method and / or apparatus for implementing virtual tape centralization of self-encrypting drives. Background technique [0004] Self-encrypting drives (SEDs) typically employ hardware to encrypt and decrypt user data during write and read operations, respectively. Encryption and decryption are accomplished using a Media Encryption Key (MEK). The MEK is typically a function of the Logical Block Address (LBA), where the entire LBA space is subdivided into LBA ranges (called "data stripes" or simply "bands"), each of which has a unique MEK. Due to hardware limitations, there is a limit to the number of bands an SED can support without severe performance degradat...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G06F9/455H04L9/08
CPCG06F21/6218G06F21/602H04L9/0897H04L9/0877
Inventor 杰里米·沃纳利奥尼德·巴于丁
Owner LSI CORP