PPT-Sun’s Network File System (NFS)

Network File System   NFS is a distributed file system protocol allowing a user on a client computer to access files over a computer network much like local storage is accessed Network File system provides . Sanjay . Ghemawat. , Howard . Gobioff. , and Shun-. Tak. Leung. Google. Jaehyun Han. 1. Outline. Introduction. Design Overview. System Interactions. Master Operation. Fault Tolerance and . Diagnosis. Reuven, Dan A. .. Wei. , Li. Patel, Rinku H. .. Background. Definition of Intrusion Detection. A device dedicated to monitoring network and system resources of a company for signs of malicious activity or unauthorized access. Main memory stores the OS. The OS needs to be in memory and running for us to be able to start and run other processes. Main memory is volatile – turn off the power and you lose the contents. When you turn on the computer, main memory is empty. Engineers, consultants, authors, instructors & security experts. Chased . criminals attacking . the Fortune 500, govt. contractors, and multi-national banks. Responded to over 1 million compromised systems in over . File Concept. Contiguous logical address space. Types: . Data. numeric. character. binary. Program. File Structure. None - sequence of words, bytes. Simple record structure. Lines . Fixed length. Variable length. SHARK: Scaling File Servers via Cooperative Caching. . . Presented by - RAKESH .K. OVERVIEW. from . Leslie . Lamport. Who is he?. Leslie . Lamport. (born February 7, 1941 in New York City) is an American computer scientist. . Lamport. is best known for his seminal work in distributed systems and as the initial developer of the document preparation system . Outline. Overview of file systems. File system design. Sharing files. Unix file system. Consistency and crash recovery. Journaling file systems. Log-structured file . systems. 2. Review. We saw that file systems use write-back caching for improving the performance of file writes. 1. File Concept. Contiguous logical address space. Types: . Data. numeric. character. binary. Program. CS 3100 File-System Interface. 2. File Structure. None - sequence of words, bytes. Simple record structure. Slide #. 1. CIT 470: Advanced Network and System Administration. Shell Scripting Techniques. CIT 470: Advanced Network and System Administration. Slide #. 2. Topics. Shell Variables. Command Arguments. sees VLeZBo[: ,nteJratLnJ LocaO FLOe S\stems Yupu =KanJ CKrLs DraJJa Andrea ArpacL-Dusseau RemzL ArpacL-D Incredibly popular: Dropbox has 100 million+ usersBack up files to th Interface. File Concept. Access Methods. Directory Structure. Allocation Methods. Objectives. To explain the function of file systems. To describe the interfaces to file systems. To discuss file-system design tradeoffs, including access methods, file sharing, file locking, and directory structures. Contents. File system Structure. File system implementation. Directory implementation. Allocation methods. Contiguous allocation. Linked list allocation. Indexed allocation. Free space management. File System Structure. CSE . 410 Winter 2017. Instructor: Teaching Assistants:. Justin Hsia Kathryn Chan, Kevin Bi, Ryan Wong, Waylon Huang, . Xinyu. Sui. Internet of Things Teddy Bear Leaked 2 Million Parent and Kids Message Recordings.