PPT-AIR RAID

What is an air raid Where did they happen How did people protect themselves What did the government do What is an air raid BACK Each night signal planes dropped incendiary bombs or fire bombs . 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. 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 . Hai. Lu. RAID. RAID. , an acronym for . redundant array of independent disks. or also known as . redundant array of inexpensive disks. , is a technology that allows high levels of storage reliability from low-cost and less reliable PC-class disk-drive components, via the technique of arranging the devices into arrays for redundancy.. 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. . Making the principles of the Crisis Care Concordat a reality.. Clair Carson. Assistant Director of Operations, Mental Health, PCFT. . The . Mental Health Crisis Care Concordat . is a shared agreement made by over 20 national organisations about how we respond to people in mental health crisis. . 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.. “Redundant Array of Inexpensive Disks”. CONTENTS. Storage devices.. Optical drives.. Floppy disk.. Hard disk.. Components of Hard disks.. RAID technology.. David A Patterson, Garth Gibson, and Randy H Katz. Presented by Connor Bolton. Background. 1974 to 1984 – Single chip speed increased 40% a year . Magnetic disk doubled capacity and halved in price every 3 years. 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. . Shu Yin. Xiao Qin. Auburn University. Presentation Outline. Motivation;. Related Work;. MREED . Model;. Experimental Result;. Conclusion/Future Work.. 2. Mobile Multimedia. Data-Intensive Applications. 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”. media. PM Video 10:28. Selecting a Hard Drive. Some considerations when selecting a hard drive:. Drive capacity. Today’s hard drives range from 60 GB – 10 TB. Spindle speed (measured in RPM). Common spindle speeds are: 3600, 5400, 7200, 10,000, and 15,000 RPM. In an increasingly competitive market Communication Service Providers CSPs are being forced to quickly adapt to meet customer expectations and market trends by di31erentiating themselves from competit