====== Notes for the Solaris 10 System Administration Exam (CX-310-200 & -202) ======

I'm preparing myself for the two exams to achieve the [[http://www.sun.com/training/certification/solaris/scsa.xml|Sun Certified System Administrator (SCSA)]] certification.
This are my notes taken while studying the preparation books.

===== Managing File Systems =====

==== List Devices ====

To list the system's devices, you can use the following commands:

  * ''dmesg''
  * ''format''
  * ''prtconf''
  * ''sysdef''

==== Reconfigure Devices ====

To reconfigure the devices, you can perform any of these actions:

  - ''touch /reconfigure'' and reboot the system
  - From OK promt, bott the system with ''-r'' option (''boot -r'')
  - ''reboot -- -r''
  - Run ''devfsadm''
    * Limit to class of devices: ''devfsadm -c ''//class//, e.g. ''devfsadm -c disk''
    * Limit a driver: ''devfsadm -i ''//driver//, e.g. ''devfsadm -i sd''

==== Device Names ====

  * physical device path: ''"/pci@0/pci@0/pci@1/pci@0/pci@2/network@0" 0 "e1000g"''
  * logical device name: ''e1000g0''
  * logical device path: ''/dev/e1000g0'' (symlink to physical device path)
  * driver: ''e1000g''
  * driver instance: 0

==== Device Config Files ====

=== /etc/path_to_inst ===

The file ''[[solaris:etc:path_to_inst|/etc/path_to_inst]]'' maps physical device paths to driver name and driver instance number.

Example:
  "/pci@0/pci@0/pci@1/pci@0/pci@2/network@0" 0 "e1000g"

=== /etc/name_to_major ===

Maps driver name to major device number.

Example:
  e1000g 51

==== Save and Restore the VTOC ====

  * Print VTOC:

  prtvtoc <raw device>

  * Write VTOC:

  fmthard -s <vtoc backup> <raw device>

  * Directly transfer VTOC from one disk to another:

  prtvtoc <source raw device> | fmthard -s - <target raw device>

==== Inodes ====

  * Find all hard links of a given inode:

  find <filesystem> -mount -inum <inode> -ls

  * For example, to find all filesystem entries in the root filesystem for inode 4711, use this:

  find / -mount -inum 4711 -ls

==== Block Sizes ====

  * The //physical block size// is 512 Bytes.
  * The //logical block size// is 4 KiB(([[http://en.wikipedia.org/wiki/Byte#Unit_multiples|Kibibyte (KiB)]])) or 8 KiB. On sun4u only 8 KiB is supported. 8 KiB is default and recommended.
  * The //fragment size// is the logical block size divided by 1, 2, 4 or 8. So, it can be between 512 Bytes and 8 KiB. The default fragment size is 1 KiB.

==== Filesystem Creation and Administration ====

=== newsfs ===

FIXME: add newfs options

  * List alternate superblocks:

  newfs -Nv <raw device>

=== fstyp ===

  * The command ''[[solaris:fstyp|fstyp]]'' list filesystems propeties, e.g. alternate superblocks:

  fstyp -v <raw device>

=== fsck ===

  * Repair primary superblock with backup superblock:

  fsck -o b=<backup superblock> <raw device>

  * For example, to write the backup superblock 4711 to the primary superblock of device ''c0t0d0s0'':

  fsck -o b=4711 /dev/rdsk/c0t0d0s0

==== Label Filesystem ====

  * The filesystem name is the mountpoint of the filesystem. E.g. the name "var" stands for the mountpoint ''/var''.
  * The volume represents the physical volume name.

  * Write a filesystem label:

  labelit -F <fstype> <raw device> <fs name> <volume>

  * Read a file label:

  labelit <raw device>

  * Example: Write the name "home" and the volume "vol1" to disk ''c0t0d0s0'':

  labelif -F ufs /dev/rdsk/c0t0d0s0 home vol1

  * Labeled filesystems can be copied with ''volcopy''

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