Top
Author
Published
19 Sep 2019Form Number
LP1227PDF size
35 pages, 277 KBSubscribed to LP1227.
Thank you for your feedback.
Abstract
Lenovo Distributed Storage Solution for Spectrum Scale (DSS-G) is a high performance storage solution that combines IBM Spectrum Scale software with Lenovo servers, storage, and networking components. The DSS-G solution is available as hardware building blocks with a selectable number of disk storage enclosures and a variety of disk drive types.
The main distinguishing feature of the DSS-G solution is its sophisticated software RAID technology, which is implemented in the IBM Spectrum Scale RAID layer. This document provides an overview of the Spectrum Scale RAID technology, explains how the RAID theory applies to the various Lenovo DSS-G building blocks, and demonstrates the rebuild performance of the technology under single drive failures and multiple drive failures.
This paper is intended for solution architects and storage administrators who need to understand the technology in order to make informed DSS-G sizing and configuration decisions. The paper will be most useful for technical professionals who have a working knowledge of enterprise storage systems and are familiar with the basic features of IBM Spectrum Scale and DSS-G.
Table of Contents
Introduction
Spectrum Scale RAID overview
Understanding Spectrum Scale RAID terminology
DSS-G building block layout
Determining the volume of critical and non-critical rebuilds
Rebuild performance measurements
Summary
Appendix: Conversion of Decimal and Binary Units
Additional resources
Author
To view the document, click the Download PDF button.
Configure and Buy
Please select a locale
Full Change History
Course Detail
Employees Only Content
The content in this document with a is only visible to employees who are logged in. Logon using your Lenovo ITcode and password via Lenovo single-signon (SSO).
The author of the document has determined that this content is classified as Lenovo Internal and should not be normally be made available to people who are not employees or contractors. This includes partners, customers, and competitors. The reasons may vary and you should reach out to the authors of the document for clarification, if needed. Be cautious about sharing this content with others as it may contain sensitive information.
Any visitor to the Lenovo Press web site who is not logged on will not be able to see this employee-only content. This content is excluded from search engine indexes and will not appear in any search results.
For all users, including logged-in employees, this employee-only content does not appear in the PDF version of this document.
This functionality is cookie based. The web site will normally remember your login state between browser sessions, however, if you clear cookies at the end of a session or work in an Incognito/Private browser window, then you will need to log in each time.
If you have any questions about this feature of the Lenovo Press web, please email David Watts at dwatts@lenovo.com.
