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Solaris™8 Operating Environment System Administration I pptx
... Convention .5-8 Device Naming Conventions 5-11 Logical Device Names 5-11 Physical Device Names 5-12 Instance Names 5-14 Listing a System’s Devices 5-15 ... Command 5-18 Reconfiguring Devices 5-19 Configuring the Solaris Operating Environment Devices 5-20 devfsadm Options 5-20 Configuring a Device Before the Solaris Operating ... set-defaults Command 12-16 Device Tree 12-17 To View Device Path Names 12-19 Boot Disk Device Path Example 12-20 Using probe- Commands to Identify Devices 12-21 A probe-...
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The Design and Implementation of a Log-Structured File System
... several months Five systems were measured: /user6 Home directories for Sprite developers Workload consists of program development, text processing, electronic communication, and simulations Figure ... log The segment cleaning approach used in Sprite LFS acts much like scavenging garbage collectors developed for programming languages[19] The cost-benefit segment selection and the age sorting of ... low cleaning overheads can be achieved with a simple policy based on cost and benefit Although we developed a log-structured file system to support workloads with many small files, the approach also...
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Tài liệu Advanced Linux Programming: 7-The /proc File System pdf
... 7.3.2 Device Information The /proc/devices file lists major device numbers for character and block devices available to the system See Chapter 6, “Devices,” for information about types of devices ... includes the device type; the device and vendor ID; a device name, if available; information about the features offered by the device; and information about the PCI resources used by the device 7.3.4 ... resides on the device that has major and minor device numbers and 5, respectively.These numbers happen to correspond to /dev/ sda5 % df /tmp Filesystem 1k-blocks /dev/ sda5 8459764 % ls -l /dev/ sda5...
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A Fast File System for UNIX
... performance Since the UNIX file system interface is well understood and not inherently slow, this development retained the abstraction and simply changed the underlying implementation to increase ... to the physical latencies of disks is described in [Pechura83] Old File System In the file system developed at Bell Laboratories (the ‘‘traditional’’ file system), each disk drive is divided into ... underlying hardware It has no information about either the physical characteristics of the mass storage device, or the hardware that interacts with it A goal of the new file system is to parameterize the...
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Money, banking and the financial system (1st edition) r glenn hubbard, anthony patrick o''''brien prentice hall (2011)
... Editor in Chief: Donna Battista Executive Editor: David Alexander Executive Development Editor: Lena Buonanno VP/Director of Development: Stephen Deitmer Editorial Project Manager: Lindsey Sloan Director ... analysis “Understanding” refers to students developing the economic intuition they need to organize concepts and facts Second, students learn to evaluate current developments and the financial news Here, ... out, of course, the subprime crisis devastated not only the U.S housing market but the U.S financial system, the U.S economy, and the economies of most of the developed world That a problem in...
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File System and Disk Administration
... # Local mounts /dev/ sda1 / ext2 defaults 1 /dev/ sda2 /usr ext2 defaults 1 /dev/ sda3 /usr/data ext2 defaults 1 /dev/ cdrom /cdrom iso9660 ro 1 /dev/ sda4 /dos msdos defaults 1 /dev/ sdb1 /data ext2 ... mục cần đợc mount tới với tuỳ chọn kèm theo theo dạng sau: /dev/ device /dir/to/mount dev/ device ftype parameters fs_freq fs_passno Chỉ device đợc mount /dir/to/mount Là th mục đợc mount tới th ... Để mount hệ thống file dùng lệnh mount cú pháp nh sau: mount < /dev/ device> /dev/ device tên device mà ta muốn mount /directory to mount th mục mount mà hệ thống...
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Administering File Systems
... systems /dev/ sda7 on / type ext3 (rw) proc on /proc type proc (rw) sysfs on /sys type sysfs (rw) devpts on /dev/ pts type devpts (rw,gid=5,mode=620) /dev/ sda6 on /mnt/debian type ext3 (rw) /dev/ sda3 ... sudo sudo sudo tune2fs tune2fs tune2fs tune2fs tune2fs -i -i -i -i -i 10 /dev/ sda1 1d /dev/ sda1 3w /dev/ sda1 6m /dev/ sda1 /dev/ sda1 Check after 10 days Check after day Check after weeks Check after ... every disk Disk /dev/ sda: 82.3 GB, 82348277760 bytes 255 heads, 63 sectors/track, 10011 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot /dev/ sda1 * /dev/ sda2 /dev/ sda3 Start...
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The Unix system interface
... struct stat { dev_ t ino_t short short short short dev_ t off_t time_t time_t time_t }; /* inode information returned by stat */ st _dev; st_ino; st_mode; st_nlink; st_uid; st_gid; st_rdev; st_size; ... program will copy anything to anything, since the input and output can be redirected to any file or device #include "syscalls.h" main() /* copy input to output */ { char buf[BUFSIZ]; int n; while ... (``unbuffered''), and a number like 1024 or 4096 that corresponds to a physical block size on a peripheral device Larger sizes will be more efficient because fewer system calls will be made Putting these...
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File system and Disk Administration
... # Local mounts /dev/ sda1 / ext2 defaults 1 /dev/ sda2 /usr ext2 defaults 1 /dev/ sda3 /usr/data ext2 defaults 1 /dev/ cdrom /cdrom iso9660 ro 1 /dev/ sda4 /dos msdos defaults 1 /dev/ sdb1 /data ext2 ... khởi động thư mục cần mount tới với tuỳ chọn kèm theo theo dạng sau: /dev/ device /dir/to/mount ỹ dev/ device ftype parameters Chỉ device mount 75 fs_freq fs_passno Giới thiệu UNIX- Một số thao tác ... Để mount hệ thống file dùng lệnh mount cú pháp sau: mount < /dev/ device> ỹ /dev/ device tên device mà ta muốn mount 74 Giới thiệu UNIX- Một số thao tác UNIX ỹ /directory...
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Lesson 15-The power systems of Diesel Engine
... pneumatic tools, flushing,, charging for S W or F W , pressure tanks and control of self-regulated devices The compressed air system usually consists of air compressors, separators, air reservoirs ... công cụ dùng khí nén 57 charge v.nạp (điện,khí ) 58 pressure tank két áp lực 59 self-regulated device thiết bị tự điều tiết 60 separator n.máy phân ly 61 air reservoir bình chứa khí nén Verb...
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Advanced File System Management
... Options Option Description This option checks the device for bad blocks Use it if you don’t trust the device and are unable to buy a new storage device By default, a fast read-only test is performed ... Ext2-formatted If necessary, use the command to find out which device it is using (this should be or ) and proceed Open a directory on the device that you want to monitor and use the command to display ... see that the option is will not write to the device if it suspects used, which is required in certain cases; that a file system already exists on that device So, if you want to re-create an XFS...
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Managing File Systems
... the /dev directory MAKEDEV accepts a number of parameters (you can check what they are in the manual pages In general, MAKEDEV is run as: /dev/ MAKEDEV device where device is the name of a device ... (J-mouse) Joystick Devices Joysticks Devices js0 and js1 Page 259 · Disk Devices Floppy disk devices The device fd_ is the device which auto-detects the format, and the additional devices are fixed ... /proc/bus/usb type usbdevfs (rw) /dev/ hda1 on /boot type ext3 (rw) none on /dev/ pts type devpts (rw,gid=5,mode=620) /dev/ hda3 on /home type ext3 (rw) none on /dev/ shm type tmpfs (rw) /dev/ hda2 on /usr...
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The File Hierarchy
... system /dev We will be discussing /dev in detail in the next chapter, however, for the time being, you should be aware that this directory is the primary location for special files called device ... several physical devices; different parts of the file hierarchy may exist on totally separate partitions, hard disks, CD-ROMs, network file system shares, floppy disks and other devices This separation ... bin/ boot/ dev/ etc/ home/ lib/ lost+found/ mnt/ proc/ root/ sbin/ tmp/ usr/ var/ Contains Required Boot-time binaries Boot configuration files for the OS loader and kernel image Device files...
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Chapter-10-File systems and devices
... named /dev/ ptyp0 through /dev/ ptypv, /dev/ ptyq0 through /dev/ ptyqv, /dev/ ptyr0 through /dev/ ptyrv, /dev/ ptys0 through /dev/ ptysv, /dev/ ptyP0 through /dev/ ptyPv, /dev/ ptyQ0 through /dev/ ptyQv, /dev/ ptyR0 ... named /dev/ ttyp0 through /dev/ ttypv, /dev/ ttyq0 through /dev/ ttyqv, /dev/ ttyr0 through /dev/ ttyrv, /dev/ ttys0 through /dev/ ttysv, /dev/ ttyP0 through /dev/ ttyPv, /dev/ ttyQ0 through /dev/ ttyQv, /dev/ ttyR0 ... /etc/fstab might look like: /dev/ ad0s1a / /dev/ ad0s1b none /dev/ ad0s1e /usr /dev/ da1s1e /src /dev/ da2s1 /linux /dev/ ad1s1 /C: proc /proc linproc /compat/linux/proc /dev/ cd0a /cdrom presto:/ /presto/root...
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