Exam Essentials

Know the four types of blocks in a file system and what each type is used for. The boot block is used for booting off of a file system. The superblock contains information about the file system, including size parameters. Inodes contain information about files. Data blocks hold files.

Know the four disk-based file systems. They are the UNIX File System (UFS), Personal Computer File System (PCFS), High Sierra File System (HSFS), and Universal Disk Format (UDF).

Understand the differences between local, distributed, and pseudo file systems. Local file systems are on local media, such as hard disks, floppy disks, and CD-ROMs. Distributed file systems (namely NFS) are accessed over the network. Pseudo file systems generally reside in memory, not on hard disk space.

Know how to create new UFS file systems. UFS file systems can be created with the newfs and mkfs commands.

Understand what a shortage of inodes could mean. If your file system does not have enough inodes, you might not be able to create files even though space is still available in the file system. It's better to have too many inodes, even if it is inefficient, than to have not enough inodes.

Know how to check file system consistency and repair problems. File system consistency is checked with the fsck command. This command will also repair problems that it encounters.

Understand the purpose of the /etc/mnttab file. The mount table keeps track of all mounted file systems on your computer.

Understand the purpose of the /etc/vfstab file. The virtual file system table tells Solaris which file systems to mount automatically at boot.

Know how to mount and unmount file systems. Mounting is done with the mount and mountall commands. Unmounting is performed with umount or umountall.

Know how to make Solaris check for a floppy disk when you insert it. To have volume manager scan the floppy disk drive, execute the volcheck command.




Solaris 9. Sun Certified System Administrator Study Guide
Solaris 9 Sun Certified System Administrator Study Guide
ISBN: 0782141811
EAN: 2147483647
Year: 2003
Pages: 194

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