PPT-RAID TECHNOLOGY

Redundant Array of Inexpensive Disks CONTENTS Storage devices Optical drives Floppy disk Hard disk Components of Hard disks RAID technology. Clare O’Brien . WWII in the Pacific . The Main Players. Vice Admiral Halsey of the . U.S.S. Enterprise . Lieutenant Colonel . James Doolittle . Captain Marc Mitscher of the . U.S.S. Hornet. In response to the shock and anger following Pearl Harbor. Presented by:. Dan Foreman (danf@prodb.com). Our Mentors. Introduction – Dan Foreman. Progress User since 1984. Author of several Progress related Publications. Progress Performance Tuning Guide. Progress Database Administration Guide. Computer Systems. Lecture 8: Storage Devices. Hard Drives. RAID. SSD. 2. Hard Drive Hardware. 3. A Multi-Platter Disk. 4. Addressing and Geometry. Externally, hard drives expose a large number of . sectors . RAID (Redundant Arrays of Independent Disks). Disk . organization technique that manages a large number of disks, providing a view of a single disk of. High capacity and high speed up using multiple disk in parallel. Lecture 39: IO Disks. Instructor: Dan Garcia. http://inst.eecs.Berkeley.edu/~cs61c/. 1. Technology in the News. www.cnn.com/2014/04/28/tech/innovation/google-self-driving-car/. 2. Review. . Exceptions are “Unexpected” events. A disk subsystem is a hard disk server.. Servers are connected to the . connection port . of the subsystem using standard I/O techniques such as SCSI, . fibre. channel etc.. The internal structure of the disk subsystem is completely hidden from the server. The server sees on the hard disks. . The . Zambian Case. 2013 ICN Cartel Workshop. Chester Njobvu . Investigator . Competition & Consumer Protection Commission . 1. Sectors. Agricultural Sector . Same two firms winning tender to conduct the Farmer Input Support Programme (FISP). 2 days before. 2 hours before. 2 hours after. 2 days after. What do you think may have happened at the different stages before and after this photograph was taken? Write down what you think in your book!. and RAID. Outline. Disks. Disk scheduling algorithms. Redundancy in storage . systems, RAID. 2. Disk Geometry. Disks have multiple platters. Each platter has . an arm and a head for accessing data. The arms for the different platters move together. . DSN-4000 series Introduction. Technology Overview. Direct Attached Storage (DAS) – storage devices directly attached to a computer i.e. internal disk drive.. Network Attached Storage (NAS) – file server attached directly to a network, imbedded file system allows users to share pool of storage.. Data Storage Management. 357362 – Special Problems in Electronics . Asst. Prof. Dr. . Choopan. . Rattanapoka. การปรับแต่งเครื่องแม่ข่าย. ในการทำงานกับกับเครื่องแม่ข่าย มีสิ่งที่สามารถปรับแต่งได้ คือ. “Redundant Array of Inexpensive Disks”. CONTENTS. Storage devices.. Optical drives.. Floppy disk.. Hard disk.. Components of Hard disks.. RAID technology.. Performance Benchmarking:. Part 3 – Block Components. Ken Cantrell, NetApp. Mark Rogov, EMC. David Fair, SNIA ESF Chair, Intel. March 8, 2016. SNIA Legal Notice. The material contained in this tutorial is copyrighted by the SNIA unless otherwise noted. . Use multiple smaller disks (c.f. one large disk). Parallelism improves performance. Plus extra disk(s) for redundant data storage. Provides fault tolerant storage system. Especially if failed disks can be “hot swapped”.