PPT-Triple-Parity RAID and Beyond

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 lowcost and less reliable PCclass diskdrive components via the technique of arranging the devices into arrays for redundancy. !. 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) . Fourie Joubert. Physical Storage. Physical disks may be inside the server, or in an external enclosure. The server may also be connected to storage in other ways, such as on a network. The physical disks may have platters, or be SSD. Advanced Topics in Computer Systems. Lecture . 4. Filesystems. (. Con’t. ). September . 15. th. , . 2014. John . Kubiatowicz. Electrical Engineering and Computer Sciences. University of California, Berkeley. Case Study: Facebook f4. Steve Ko. Computer Sciences and Engineering. University at Buffalo. Recap. Engineering principle. Make the common case fast, and rare cases correct. Power law. Haystack. A design for warm photos. Disputing the Decisions that Affect Your Bottom-Line . Patrick Gauthier, Director. Parity & Equity. Federal parity law applies . only. to insurers who choose to cover mental health and substance . Storage. Microsoft clustering. Grey File services. Storage. RAID. Types of RAID. Protocols. SAN. Microsoft Clustering (MSCS). What is clustering. Terminology. How we are configured at Grey. Grey File Services. 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. “Redundant Array of Inexpensive Disks”. CONTENTS. Storage devices.. Optical drives.. Floppy disk.. Hard disk.. Components of Hard disks.. RAID technology.. “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. Nancy Shea . Mental Health Advocacy Services, Inc.. August 16, 2017 . What This Webinar Will Cover. Why. this matters. What is mental health parity. Overview of mental health parity under state and federal laws. Slide #. 1. CIT 470: Advanced Network and System Administration. Disks . CIT 470: Advanced Network and System Administration. Slide #. 2. Topics. Disk interfaces. Disk components. Performance. Reliability. 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”. WeLe-RAID A SSD-Based RAID for System Endurance and Performance 249 provision of capacity also has the same goal while not just meet the requirement of garbage collection These two strategies work to