Currently archives are out of order. They are not accessible by common users
The archiving system automatically creates backups of files stored in the archive, with a maximum frequency of three times per day.
The frequency is regulated by the administrators.
The data from the archive is automatically transferred to robot-tape storage without changing the user's access method. The only difference after moving the file to tape storage may be an extended access time to retrieve the file.
Reading a file from the archive can take even several tens of minutes (depending on its size).
During this time, if the file has been previously archived, it is automatically restored and made available in the user's archive directory.
By using the archive, the user automatically accepts its usage policy.
Using the archive on the Bem cluster is done through the dedicated node archiwum.wcss.pl. From this node, users have access to their home directory and their directory on the working file system. To transfer data to/from the archive from the home directory or temporary directory, users should log in to this node and perform the necessary data operations.
ssh archiwum.wcss.pl
/archiwum/$USER. This directory is the user's private archive and is not accessible to other users.Using the archive doesn't differ from using a regular directory on the disk.
To transfer the data to the archive, simply copy it.
Example for user "user1":
ls /archiwum/user1/
cp plik.txt /archiwum/user1/
/home or /lustre/scratch) to free up disk space, for example:
rm plik.txt
mv plik.txt /archiwum/user1/
To use the file again, simply copy it back to your directory in the /home or /lustre/scratch space, for example:
ls /archiwum/user1/
cp /archiwum/user1/plik.txt /home/user1/
ls /home/user1/plik.txt
If a user has multiple small files that they want to move to the archive, they should pack them together and compress them using lossless compression. This can be done using the
tarorzipcommands.
tar czvf name_of_pack.tar.gz [file list to pack]
tar xzvf name_of_pack.tar.gz [optional file list to unzip]
tar tzvf name_of_pack.tar.gz
zip -r9 name_of_pack.zip [file list to pack]
unzip name_of_pack.zip [optional file list to unzip]
zipinfo name_of_pack.zip