~]#cat .bash_profile
export TERM=xterm
export PATH=$PATH:/opt/csw/sbin/:/opt/SUNWhpc/HPC8.1/sun/bin
source ~/.bashrc
EDITOR=vim
export EDITOR

/dev/rmt0 Device busy

If you are an Administrator and especially a backup administrator there is a very high chance that you get stuck with this error message with your backup.

If you do a

# mt -f /dev/rmt0n status

(infact any option with the mt or related command)

and end up with the error

/dev/rmt0n: Device Busy

then the most probable problem could be your Tape drive is still being used by the backup program or some related process.

The first thing to check would which process has locked your Tape drive. This can be done using the fuser utility.

# fuser -u /dev/rmt/0n

This will output the process ID that is actually holding the /dev/rmt0n device. The fuser can also be used against files.

Now, use

# ps -ef | grep

This will show the process. Now, kill the process using

# kill

If this fails, then use

# kill -9

if still fails, use

#pkill -9

That should do. You can check the status by using

# mt -f /dev/rmt0n status

Posted by Kumaran at 00:34

Labels: Solaris backup rmt device busy mt status fuser

http://docs.sun.com/app/docs/doc/820-2981/fpjve?l=es&a=view

# Change directories (cd) to the desired directory from which tarring will be done.
cd /home/… (whatever)

# To tar all the files in the current directory (.) and sub-directories
# to the tape using medium density (m) and no rewind (n)
tar -cvf /dev/rmt/0mn .

# To tar all the files in the current directory (.) and sub-directories
# to the tape using medium density (m) and, yes, rewind
tar -cvf /dev/rmt/0m .

# To do the same and write the list of the tarred files out to a file
# called TAR_LIST
tar -cvf /dev/rmt/0m . > TAR_LIST

# To view the table of contents from the first tar on the tape
# and then rewind the tape
tar -tvf /dev/rmt/0

# To view the table of contents from the tar at the current location
# on the tape and then NOT rewind the tape (subsequent calls to
# tar -tvf will access the subsequent tars on the tape)
tar -tvf /dev/rmt/0n
tar -tvf /dev/rmt/0n

# To extract a file (e.g., “my_file”) from the tar into the current
# directory (All existing files of the same name are over-written)
tar -xvf /dev/rmt/0 ./my_file

# To extract all the files under a directory (e.g., “sumatra”) from the tar
# into the current directory (All existing files of the same name are
# over-written). Give the full path to the directory on the tape
tar -xvf /dev/rmt/0 ./jones/proj/sumatra

# To rewind the tape
mt -f /dev/rmt/0 rew

# To advance past the current tar (0=first, 1=second, etc)
mt -f /dev/rmt/0n fsf 1

# Don’t use the following (i.e., without the ‘n’) or else the
# tape will advance forward then rewind
mt -f /dev/rmt/0 fsf 1

# Absolute space to “count” file number. This is equivalent
# to a rewind followed by a fsf “count”. Using 2 will position
# the pointer to the start of the third tar on the tape.
mt -f /dev/rmt/0 asf 2

# To backspace to the beginning of the tar in front of, uh, where
# the tape is currently sitting (using ‘…/0n bsf 1′ leaves the
# tape at its current location)
mt -f /dev/rmt/0n bsf 2

# To go to the end of the last tar on the tape and stay there
mt -f /dev/rmt/0n eom

# To see the tape status (and current file number)
# (Careful: if you use /0 and not /0n the tape will rewind
# following the status report)
mt -f /dev/rmt/0n status

# Using the above command the following is the report given at the
# start of the tape, i.e., file no = 0
# Exabyte EXB-8500 8mm Helical Scan tape drive:
# sense key(0×0)= No Additional Sense residual= 0 retries= 0
# file no= 0 block no= 0

# To determine the number of tars on the tape (number of tars
# is the value at ‘file no = ‘)
mt -f /dev/rmt/0 eom
mt -f /dev/rmt/0 status

# To erase all the tars on the tape
mt -f /dev/rmt/0 erase

# To retension the tape
mt -f /dev/rmt/0 retension

# For more goodies
man tar
man mt

http://dev.mysql.com/tech-resources/articles/mysql-zfs.html

Yup, but for *nix I would recommend to use “real” perl and not the activeperl edition.

With “real” perl you can simply just run these commands to get the up2date DBI and DBD::mysql modules compiled and installed in your system:

perl -MCPAN -e ‘install DBI’
perl -MCPAN -e ‘install DBD::mysql’

./mysqlmonitor-2.0.5.7153-solaris-sparc-installer.bin
Language Selection

Please select the installation language
[1] English
[2] Japanese
Please choose an option [1] :
—————————————————————————-
Welcome to the setup wizard for the MySQL Enterprise Monitor

—————————————————————————-
Please specify the directory where the MySQL Enterprise Monitor will be installed

Installation directory [/opt/mysql/enterprise/monitor]:

—————————————————————————-
Tomcat Server Options

Please specify the following parameters for the bundled Tomcat Server

Tomcat Server Port [18080]:

Tomcat Shutdown Port [18005]:

Tomcat SSL Port [18443]:

Is SSL support required? [y/N]: y

—————————————————————————-
Repository Configuration

Please specify the following parameters for the bundled MySQL server

Repository Username [service_manager]:

Password :
[ssybl1:/export/home/carlosap/mysqlEnterprise]#./mysqlmonitor-2.0.5.7153-solaris-sparc-installer.bin
Language Selection

Please select the installation language
[1] English
[2] Japanese
Please choose an option [1] : 1
—————————————————————————-
Welcome to the setup wizard for the MySQL Enterprise Monitor

—————————————————————————-
Please specify the directory where the MySQL Enterprise Monitor will be installed

Installation directory [/opt/mysql/enterprise/monitor]:

—————————————————————————-
Tomcat Server Options

Please specify the following parameters for the bundled Tomcat Server

Tomcat Server Port [18080]:

Tomcat Shutdown Port [18005]:

Tomcat SSL Port [18443]:

Is SSL support required? [y/N]: y

—————————————————————————-
Repository Configuration

Please specify the following parameters for the bundled MySQL server

Repository Username [service_manager]: carlosap

Password :
Re-enter :
Bundled MySQL Database Port [13306]:

—————————————————————————-
Configuration Report

Note:

The settings you specified will be saved here:
/opt/mysql/enterprise/monitor/configuration_report.txt

IMPORTANT: This configuration report includes passwords stored in plain text; it
is intended to help you install and configure your agents. We strongly advise
you to secure or delete this text file immediately after installation
Press [Enter] to continue :

—————————————————————————-
Setup is now ready to install MySQL Enterprise Monitor on your computer.

Do you want to continue? [Y/n]: y

—————————————————————————-
Please wait while Setup installs MySQL Enterprise Monitor on your computer.

Installing
0% ______________ 50% ______________ 100%
#########################################

—————————————————————————-
Completed installing files

Setup has completed installing the MySQL Enterprise Monitor files on your
computer

Uninstalling the MySQL Enterprise Monitor files can be done by invoking:
/opt/mysql/enterprise/monitor/uninstall

To complete the installation, launch the MySQL Enterprise Dashboard and complete
the initial setup and product activation information. Refer to the readme file
for additional information and a list of known issues.

Press [Enter] to continue :

—————————————————————————-
Setup has finished installing MySQL Enterprise Monitor on your computer.

View Readme File [Y/n]: n

Info: To configure the MySQL Enterprise Monitor please visit the following page:

http://localhost:18080

Press [Enter] to continue :