accessing the file system

... (i-number for the directory and the position ferent to the users than the Unix FFS-like file system in within the directory), the contents of the directory entry Sprite The reason is that the machines ... log-structured file systems In a log-structured file system, free space for the log can be generated either by copying the old blocks or by threading the log around the old blocks The left side of the figure ... the files densely in the log Furthermore, Sprite LFS only kept the disk 17% busy during the create phase while saturating the CPU In contrast, SunOS kept the disk busy 85% of the time during the...

Ngày tải lên: 12/09/2012, 15:05

... and click on the (+) sign to expand the contents of the drive If the user clicks directly on the drive, the contents of the drive will be displayed on the right side of the screen On the left side ... Cisco Systems, Inc Step 2: Navigating the Windows 2000 file system using My Computer Double-click the My Computer icon located on the desktop This will display all of the drives located on the system ... Navigating the Windows 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...

Ngày tải lên: 04/11/2013, 16:15

... Mounts, and File Systems The /proc file system also contains information about the disk drives present in the system and the file systems mounted from them 7.5.1 File Systems The /proc/filesystems ... special file systems such as the /proc file system, this is none The second element is the mount point, the place in the root file system at which the file system contents appear For the root file system ... contents of /proc/filesystems list only file system types that either are statically linked into the kernel or are currently loaded Other file system types may be available on the system as modules...

Ngày tải lên: 26/01/2014, 07:20

... between the end of the boot block and the beginning of the cylinder group Without knowing the size of the file system blocks, the system would not know what roundup function to use to find the beginning ... Fast File System for UNIX Both reads and writes are faster in the new system than in the old system The biggest factor in this speedup is because of the larger block size used by the new file system ... so there is no gain to be had by reordering them Hence the disk seek latencies that limited the old file system have little effect in the new file system The cost of allocation is the factor in the...

Ngày tải lên: 12/09/2012, 14:16

... sketched the system in the previous section Furthermore, we learned the art of reasoning by which we could deduce from our requirements the way in which the processes should influence each other by their ... proved the eon'eetness of the system with a rigor and explicitness that is unusual for the great majority of mathematical proofs A Survey of the System gtructure Storage Allocation In the classical ... capacity nor the processing power The system is not intended as a multiaeeess system There is no common data base via which independent users can communicate with each other: they only share the configuration...

Ngày tải lên: 12/09/2012, 15:05

... “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 vào Encrypt ... 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 ... 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...

Ngày tải lên: 14/09/2012, 09:57

... C:\Windows\repair \system < Enter Suy nguyên dòng CODE C:\WINDOWS \SYSTEM3 2\CONFIG\COPY C:\WINDOWS\REPAIR \SYSTEM < Enter Mục đích code copy file SYSTEM từ thư mục Repair, file file chuẩn chưa hư vào thư mục SYSTEM3 2 ... nhập cú pháp: ren system system.old < Enter Suy nguyên hàng C:\WINDOWS \SYSTEM3 2\CONFIG\REN SYSTEM SYSTEM.OLD Mục đích cú pháp ren < Rename fille system máy thành file system. old Sau nhập tiếp ... file SYSTEM bạn làm sau Tại dấu nhắc C:\WINDOWS\ bạn nhập cd SYSTEM3 2 < Enter sau C:\WINDOWS \SYSTEM3 2\ bạn nhập tiếp CD CONFIG < Enter C:\WINDOWS \SYSTEM3 2\CONFIG\ Từ bạn nhập cú pháp: ren system...

Ngày tải lên: 25/06/2013, 01:25

... dòng CODE C:WINDOWSSYSTEM32CONFIGCOPY C:WINDOWSREPAIRSYSTEM < Enter Mục đích code copy file SYSTEM từ thư mục Repair, file file chuẩn chưa hư vào thư mục SYSTEM3 2 ĐỐI VỚI MÁY HƯ FILE SOFTWARE THÌ ... Suy nguyên hàng C:WINDOWSSYSTEM32CONFIGREN SYSTEM SYSTEM.OLD Mục đích cú pháp ren < Rename fille system máy thành file system. old Sau nhập tiếp CODE Copy C:Windows epairsystem < Enter Suy nguyên ... hư file SYSTEM bạn làm sau Tại dấu nhắc C:WINDOWS bạn nhập cd SYSTEM3 2 < Enter sau C:WINDOWSSYSTEM32 bạn nhập tiếp CD CONFIG < Enter C:WINDOWSSYSTEM32CONFIG Từ bạn nhập cú pháp: ren system system.old...

Ngày tải lên: 01/07/2013, 01:25

... of the Financial System Identify the key components of the financial system SUMMARY The financial system channels funds from savers to borrowers The three key components of the financial system ... them to apply the theory that they learn in the classroom to the practice of the real world By learning this framework, students will understand not just the 2007–2009 financial crisis and other ... and the Financial System, ” we cover the key components of the financial system, introduce the Federal Reserve, and preview the important issues facing the financial system At the end of Chapter...

Ngày tải lên: 18/08/2013, 19:46

... 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 ... 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 ... 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

... hiểu file cấu hình lilo.conf: man lilo.conf So sánh file cấu hình với file cấu hình grub.conf Biên soạn: Nguyễn Trí Thức – Lưu Hành Nội Bộ 68 TRUNG TÂM ĐÀO TẠO QUẢN TRỊ VÀ AN NINH MẠNG ATHENA ... TRUNG TÂM ĐÀO TẠO QUẢN TRỊ VÀ AN NINH MẠNG ATHENA Bis Đinh Tiên Hoàng, P Đa Cao, Q.1, TP.HCM Tel: (84-8) 38244041 – 0989012418 www.athena.edu.vn Lưu file grub.conf lại khởi động lại hệ thống - ... TRUNG TÂM ĐÀO TẠO QUẢN TRỊ VÀ AN NINH MẠNG ATHENA Bis Đinh Tiên Hoàng, P Đa Cao, Q.1, TP.HCM Tel: (84-8) 38244041 – 0989012418 www.athena.edu.vn - Copy file lilo.conf vào thư mục /etc/lilo.conf...

Ngày tải lên: 29/09/2013, 20:20

... /mnt/image Change to the mount point Create a directory on the file system Copy a file to the file system Leave the file system Unmount the file system With the virtual file system unmounted, you ... another system or burn it to a CD to use a file system in another location If you don’t want the file system any more, simply delete the file Viewing and Changing File System Attributes Using the ... indicates that the file system should not be checked A number means that the file system needs to be checked first (this is used for the root file system) A number assumes that the file system can...

Ngày tải lên: 29/09/2013, 22:20

... the file: a pointer to a buffer, so the file can be read in large chunks; a count of the number of characters left in the buffer; a pointer to the next character position in the buffer; the file ... descriptors The function close(int fd) breaks the connection between a file descriptor and an open file, and frees the file descriptor for use with some other file; it 142 corresponds to fclose in the ... that there is no buffer to flush Termination of a program via exit or return from the main program closes all open files The function unlink(char *name) removes the file name from the file system...

Ngày tải lên: 30/09/2013, 06:20

... expressionField.Text); This code adds the expression columns to the sample table, passing the column name, the data type from the System namespace, and the field expression Run the program On the Add Expression ... expressionField.Text) This code adds the expression columns to the sample table, passing the column name, the data type from the System namespace, and the field expression Run the program On the Add Expression ... ensure that the user provides a valid ID 60 Chapter 4  Accessing the Right Data Values 61 Locate the try catch statement just after the “Perform the lookup” comment In the try block, add the following...

Ngày tải lên: 03/10/2013, 00:20

... lệnh newfs), mkswap tạo swap file system Ví dụ mke2fs /dev/hda1 mkswap /dev/hda2 Mounting and unmounting file systems Mounting file systems Như ta đ biêt hệ thống file UNIX lưu trữ dạng thư mục ... Kiểu filesystem dùng chủ yếu Linux partition ỹ iso9660 Kiểu ISO 9660 filesystem dùng với CD-ROM disks 76 Giới thiệu UNIX- Một số thao tác UNIX ỹ sysv Kiểu Nhằm hỗ trợ cho dạng UNIX System V filesystem ... tất file systems 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: 09/10/2013, 13:20

... fact, the lube oil system for a diesel power plant can be subdivided into two components, the inner system and the exterior one The lube oil for the inner system is to be provided together with ... which derives from the hot combustion gas in cylinders and the rest of which results from the friction of moving parts If the above heat should not be carried away in time, the temperature of ... plant The only way out is to set up an effective cooling system Excessive temperature, as mentioned above, will lead to material damage Does this mean that the lower temperature the better? The...

Ngày tải lên: 17/10/2013, 15:15

... needs to open the file It then uses that inode to open the file and present the data to the user This procedure works the same for every file system that can be used In a very basic file system such ... important of these is the data section This is the only section that is created by default The other two sections are the log section and the real-time section Organization of the XFS File System The ... make sure that there is enough available disk space in the file system at all times When the file system is almost full, the file system will allocate lots of CPU cycles to handle all the simultaneous...

Ngày tải lên: 19/10/2013, 02:20

... ext2/ext3 filesystem, then reads the fstab file and remounts the root partition (and others) according to instructions in the file So what is in the file? An example line from the fstab file uses the ... failures The time to recover an ext3 file system after an unclean system shutdown does not depend on the size of the file system or the number of files; rather, it depends on the size of the journal ... · The number of hard links to the file The same physical file may be accessed under several names; we will examine how later The size of the file The time the file was last modified The time the...

Ngày tải lên: 19/10/2013, 02:20

... The important sections The root of the problem The top level of the Linux file hierarchy is referred to as the root (or /) The root directory typically contains several other directories ... configuration file for the system (including those for networking, X-Windows and the file system) /etc The /etc branch also contains the skel, X11 and rc.d directories: · · · /etc/skel Contains the skeleton ... disks and other devices This separation is transparent to the file system hierarchy, user and applications Different “parts” of the file system will be “connected” (or mounted) at startup; other parts...

Ngày tải lên: 19/10/2013, 02:20

... not be called UNIX, its file system is called the UNIX File System The UNIX System Group, the developers of UNIX System V.4, adopted UFS as the standard file system for System V and gave it this ... view of the file system doesn’t change, but this update is necessary in order to maintain the ‘‘old’’ view of the file system • They look like normal file systems You can mount them with the md driver ... file system sw 0 swap rw 2 /usr file system rw 2 additional file system rw 2 Linux file system rw 2 Microsoft file system rw 0 proc pseudo-file system rw 0 ro 0 CD-ROM rw 0 NFS file systems on other systems...

Ngày tải lên: 22/10/2013, 19:15