Find Chasis Serial Number using sneep

sneep (Serial Number in EEPROM) is a cool utility for Solaris that can retreive the Chasis Serial Number (CSN) or the Product Serial Number (PSN). This comes real handy when taking inventory or when having to work with Sun Support. sneep can also store useful information like system Assett Tag or Location into the EEPROM which can be retreived later on.

Sneep searches for the serial number in  several  data  sources,  including  the  system  eeprom, platform-specific hardware-based sources, the  configuration      files  for  the  Sun  “explorer”  and “Configuration Service Tracker (CST)” tools, and its own  backup  file. This order of searched can be altered.

Display Serial Number

To simply display the serial number run sneep with no arguements

# sneep

To display the serial number and its associated tag in the EEPROM and infact all stored Tag/Value pairs.

# sneep -T
“ChassisSerialNumber”   “0011223344”

Store Information in EEPROM

To store information into the EEPROM like the asset tag use the “-t” to set the tag name and the “-s” option to set its value as below:

# sneep -t “AssetTag” -s 001234

To display all information

# sneep -T
“AssetTag”  “001234”
“ChassisSerialNumber”   “0011223344”

Install Sneep

Sneep is not installed by default in Solaris. Click here to download the latest version of Sneep utility. (requires a sunsolve account)

Install as follows from the directory where the sneep package (SUNWsneep) is downloaded to:

# uncompress SUNWsneep2.6.tar.Z
# tar -xvf SUNWsneep2.6.tar
# pkgadd -d . SUNWsneep

To confirm the installation

# pkginfo -l SUNWsneep
NAME:  Serial Number in EEPROM
CATEGORY:  service
ARCH:  sparc,i386
BASEDIR:  /opt/SUNWsneep
VENDOR:  Sun Microsystems, Inc.
DESC:  Persistent, software-accesible storage of Chassis Serial Number (CSN) across OS and application changes. Works on all Sun platforms. Can also store and retrieve arbitrary other values in EEPROM.
PSTAMP:  cvs-sustain-build20080930010154
INSTDATE:  Jun 04 2009 17:22
HOTLINE:  Support provided through normal Sun support channels
STATUS:  completely installed
FILES:       25 installed pathnames
5 directories
3 executables
1315 blocks used (approx)

If you didn’t accept to create a link file in /usr/sbin during the pkgadd, add a symbolic link as follows;

# ln -s /opt/SUNWsneep/bin/sneep .

To check the man page

# man -M /opt/SUNWsneep/man  sneep

For command help

# sneep -h

Save and retrieve Chassis Serial Number  ( CSN ) using EEPROM.


sneep [-aFhlTvVx] [-t tag] [-s setting ] [-P ds1:ds2…] \
[-d default] [-o separator]
setcsn -c serialnumber
showplatform -p csn

-h              This help message
For detailed information, consult the man page. Try
man -M /opt/SUNWsneep/man  sneep

6 thoughts on “Find Chasis Serial Number using sneep”

  1. Thanks for telling your readers about sneep; I’m glad that it has been useful to you.

    In your tutorial here, you have an optional step in which you show how to create a symbolic link to sneep, and that will work just fine.

    I thought that I would mention that sneep includes a utility which can do this for you, and the link is registered as part of sneep so that it is removed if the package is removed.

    $ /opt/SUNWsneep/bin/add_sneep_to_bin [directory]

    By default, a link to sneep is placed in /usr/sbin unless a directory name is given.

  2. Would this work on Sun 9? I do have it installed in a Sun 10.. but I want it to work in other old servers.

  3. # showplatform -p csn will show the Chasis Serial number while eeprom will show only if nvramrc is set to true.

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