cd rom file system and udf universal disk format
File System and Disk Administration
... dùng Linux ext2 Kiểu filesystem đợc dùng chủ yếu Linux partition iso9660 Kiểu ISO 9660 filesystem đợc dùng với CD- ROM disks sysv Kiểu Nhằm hỗ trợ cho dạng UNIX System V filesystem msdos Kiểu ... dùng lệnh newfs), mkswap tạo swap file system Ví dụ mke2fs /dev/hda1 mkswap /dev/hda2 Mounting and unmounting file systems Mounting file systems Nh ta biêt hệ thống file UNIX đợc lu trữ dới dạng ... tất file systems đợc mount Chi tiết lệnh xem tài liệu ứng với loại hệ điều hành UNIX Unmounting file systems Để bỏ mount hệ thống file dùng lệnh umount umountall Lệnh umount: Bỏ mount hệ thống file...
Ngày tải lên: 28/09/2013, 11:20
The Design and Implementation of a Log-Structured File System
... Sprite LFS and Unix FFS when creating two single-block files named dir1 /file1 and dir2 /file2 Each system must write new data blocks and inodes for file1 and file2 , plus new data blocks and inodes ... small random disk I/Os, and the creation and deletion times for such files are often dominated by updates to file system ‘‘metadata’’ (the data structures used to locate the attributes and blocks ... file systems Current file systems suffer from two general problems that make it hard for them to cope with the technologies and workloads of the 1990’s First, they spread information around the disk...
Ngày tải lên: 12/09/2012, 15:05
Navigating the Windows 2000 File System with “Windows Explorer” and “My Computer”
... 2000 file system using Windows Explorer Right-click the My Computer icon on the desktop or right-click the Start button and select Explore from the menu Locate the “local Disk C:\” icon and click ... “Local Disk (C:)” icon to display the contents of the C:\ drive Change the view to details again if it is necessary to see the file information Locate the “Documents and Settings” folder and double-click ... contents of the Documents and Settings folder Within this folder, locate the Administrative and All User folder Reflection There are various ways to navigate and to locate files and folders What is...
Ngày tải lên: 04/11/2013, 16:15
stochastic global optimization techniques and applications in chemical engineering techniques and applications_in chemical engineering with cd rom
... processes and manufacturing In view of its importance and usefulness, optimization has attracted the interest of chemical engineers and researchers in both industry and academia, and these engineers and ... in ES GA and its applications are discussed in Chapters 4, 16 and 18, and DE and its variants are the subject of Chapters 6, 13 and 14 Ant colony optimization (ACO) covered in Chapter and particle ... comes with a CD- ROM containing many programs and files, which will be helpful to readers in solving the exercises and/ or doing the projects I am thankful to all the contributors and anonymous...
Ngày tải lên: 01/04/2014, 11:36
Vô hiệu hóa các ổ USB, CD-ROM, Floppy Disk và LS-120 bằng Group Policy potx
... END ITEMLIST END PART END POLICY POLICY !!policynamecd KEYNAME "SYSTEM\ CurrentControlSet\Services\Cdrom" EXPLAIN !!explaintextcd PART !!labeltextcd DROPDOWNLIST REQUIRED VALUENAME "Start" ITEMLIST ... usbstor.sys driver" explaintextcd="Disables the computers CD- ROM Drive by disabling the cdrom.sys driver" explaintextflpy="Disables the computers Floppy Drive by disabling the flpydisk.sys driver" explaintextls120="Disables ... category="Custom Policy Settings" categoryname="Restrict Drives" policynameusb="Disable USB" policynamecd="Disable CD- ROM" policynameflpy="Disable Floppy" policynamels120="Disable High Capacity Floppy" explaintextusb="Disables...
Ngày tải lên: 03/04/2014, 12:20
File System Performance and Transaction Support
... 1100 File 3: 1000 Level Entry Map Data blocks File 4: 1100 File 5: 0011 File 6: 0001 File 1: 1101 File 1: 0001 File 1: 1111 File 2: 1100 File 2: 1001 File 2: 1000 File 5: 0011 File 5: 1111 File ... disk system and exploiting parallelism on a multiple disk system The Fast File System (FFS) and the Log-structured File System (LFS) both provide effective mechanisms for optimizing the single disk ... IBM’s Extent Based File System 3 3 2.1.1.2 The UNIX1 V7 File System 2.1.1.3 The UNIX Fast File System 2.1.1.4 Extent-like Performance on the Fast File System 2.1.1.5...
Ngày tải lên: 28/04/2014, 13:32
Báo cáo toán học: "The complete cd-index of dihedral and universal Coxeter groups" docx
... which it belongs, and not on the edge itself Bj¨rner and Wachs [3] studied this CL-labeling and o applied it to derive properties of Bruhat intervals We now describe Bj¨rner and Wachs’s CL-labeling ... equality follows by induction and the last one from Lemma 2.10 and (1.1) In particular, if [u, v] is BW-labelable then cBW (u, v) = cα (u, v) Thus the BWα labeling and the reflection order yield ... them), {1} (three of them), {2} (three of them), and {1, 2} (two of them) 3.1 Complete cd- index Complete cd- index of Bruhat intervals Billera and Brenti [1] provided a way to encode the descents...
Ngày tải lên: 08/08/2014, 14:23
Head disk system and integration for extremely high density magnetic data recording
... slider and the disk This strongly influences head and disk design parameters 2) The variations in the slider-to -disk air bearing spacing due to the changes disk flatness, disk topography, disk ... the disk as can be visualized in Fig 2.2(b) The third disk mode shape and frequency is shown in Fig 2.2(c) The corresponding 3-D drawing of the disk deformations for “potato chip” and third disk ... 550nm and 650nm) The lights are generated from the mercury arc lamp and they are 17 focused to the surface of the slider, through the transparent disk and they are reflected back though the disk...
Ngày tải lên: 13/09/2015, 20:46
AN1045 implementing file IO functions using microchip’s memory disk drive file system library
... contain file information if a file is found TABLE B-1: FILENAME FORMATS Format Function *.* Find any file or directory FILENAME.ext Find a file named FILENAME.ext FILENAME.* Find a file with name FILENAME ... • DISK – The DISK structure contains information about the physical disk Never directly use the information stored in this structure • FILE – The FILE structure contains information about a file ... wrong format // Create a new file pNewFile = FSfopen (newFile, writeArg); // Open an existing file to read pOldFile = FSfopenpgm (“myfile.txt”, “r”); if ( pOldFile == NULL ) // Either file is...
Ngày tải lên: 11/01/2016, 16:37
Locality and The Fast File System
... better, faster file system, which they cleverly called the Fast File System (FFS) The idea was to design the file system structures and allocation policies to be disk aware” and thus improve ... file /foo/bar.txt and that the file is one block long (4KB) The file is new, and thus needs a new inode; thus, both the inode bitmap and the newlyallocated inode will be written to disk The file ... the file system could allocate to files Thus, if you created a small file (say 1KB in size), it would occupy two sub-blocks and thus not waste an entire 4KB block As the file grew, the file system...
Ngày tải lên: 16/08/2016, 18:50
Hướng dẫn sửa chữa Ổ CD rom
... i Tháo c m m t ñ c Ki m tra c ng b ng SCANDISK Kh c ph c hư h ng c a ñĩa c ng ð nh d ng cho ñĩa HDD Nguyên lý ho t ñ ng c a ô c ng Gi i thi u v ñĩa CD Rom Tháo c gi trư t c a c m m t ñ c B c ... Tháo c gi trư t c a c m m t ñ c B c a B n ñưa tr chu t vào nh ñ xem thích 1/20/200 Page of CD ROM CD ROM Nguyên lý S a ch a Trang ch Bach Khoa Electronic - Mobil: 0912.421.959 - Email: Daotaotructuyen@vnn.vn ... http://www.hocnghe.com.vn/Phancung/Phancung.asp GIAO TRINH PH N C NG MÁY TÍNH m i hàn m i hàn b o v m t ñ c CD Rom ñó Khi thay , trư c h t b n tháo v máy ñ h b Trung tâm b o hành c a hãng s n su t nh t t...
Ngày tải lên: 29/08/2012, 16:37
A Fast File System for UNIX
... programs to copy entire disk drives containing multiple file systems * The actual number may vary from system to system, but is usually in the range 5-13 SMM:05-4 A Fast File System for UNIX reorganized ... the disk to restore locality New file system organization In the new file system organization (as in the old file system organization), each disk drive contains one or more file systems A file system ... [Kridle83] Kridle, R., and McKusick, M., "Performance Effects of Disk Subsystem Choices for VAX Systems Running 4.2BSD UNIX", Computer Systems Research Group, SMM:05-14 A Fast File System for UNIX Dept...
Ngày tải lên: 12/09/2012, 14:16
Windows 2003 EFS EFS (Encrypting File System)
... lệnh “Cipher.exe” cửa sổ DOS – Prompt TASK 3F-1 Encryting Files Tại phân vùng NTFS, tạo text document với tên Mine.txt số văn Mở Explorer, hiển thị thuộc tính file Mine.txt Click Advanced, check ... chắn” cho certificate lưu giữ nơi an toàn Để giữ nguyên thuộc tính liệu, sử dụng Backup Utility (System Tools.Backup) để chép, di chuyển tập tin, thư mục mã hóa EFS Cryptography EFS sử dụng kết ... khóa public key/private key (thông tin mã hóa public key giải mã private key)và khóa mã hóa FEK (file encryption key) để mã hóa giải mã liệu Khi người dùng mã hóa tập tin, EFS tạo FEK để mã hóa...
Ngày tải lên: 14/09/2012, 09:57
Sức mạnh quảng cáo từ sản phẩm CD-ROM
... cho việc quảng bá sản phẩm nâng cao uy tính dịch vụ cung cấp sản phẩm doanh nghiệp CD THÔNG TIN CD thông tin dạng CD chủ yếu mang tải thông tin từ doanh nghiệp tới tay khách hàng, thông tin tự giới ... nghiệp cung cấp Có thể coi dạng danh thiếp điện tử (e-business card) Các CD dạng thường cung cấp hình thức CD dạng card CD kích thước nhỏ ...
Ngày tải lên: 08/11/2012, 09:26