Maintenance script: Created page with " == How to find the size of a directory on dcache == As a simple du does not work on our system (files larger than 2GB are reported as having a size=1), we need to query th..."

2015-08-26T12:28:30Z

Created page with " == How to find the size of a directory on dcache == As a simple du does not work on our system (files larger than 2GB are reported as having a size=1), we need to query th..."

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== How to find the size of a directory on dcache ==

As a simple du does not work on our system (files larger than 2GB are reported as having a size=1), we need to query the database directly. On our system we have 2 options for this.

=== direct query on the database ===

First, go to the dcache admin interface and find the pnfsid of the directory you want to test<br>

<pre>
cd PnfsManager
pnfsidof <directory>
</pre>
This gives you <pnfsid>

<pre>
cd /pnfs/fs/usr
. /usr/etc/pnfsSetup
export PATH=$PATH:/opt/pnfs/tools

pnfsDump -r <pnfsid> -o simple /tmp/files-diff.txt
awk '/File/ {print $5}' /tmp/files-diff.txt | tr -d '(' | tr -d ')' > /tmp/file.sizes.txt
awk '{sum +=$0} END {print sum}' /tmp/file.sizes.txt
</pre>

This procedure gives the total size in bytes.

=== Automated script ===

on maite:

<pre>
cd /root/damadori/final
</pre>

adapt the file quota.cfg in order to have the correct directory and run:

<pre>
./script.sh
</pre>

The results are displayed on http://maite.iihe.ac.be:2288/quota <br>
'''Note that both procedures can take up quite some time to finish'''

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FindSizeOnDcache - Revision history

Maintenance script: Created page with " == How to find the size of a directory on dcache == As a simple du does not work on our system (files larger than 2GB are reported as having a size=1), we need to query th..."