[ERROR] Need at least 4363 MB free space on cell. Found only 3961 MB.

Hello,

 

I decided to patch our 1/4 Exadata and run prerequisits: 

 

patchmgr -cells cell_group -patch_check_prereq

 

and have got the result in all cells:

 

ed01cel03: [ERROR] Need at least 4363 MB free space on cell. Found only 3961 MB.

 

From the cell:

[root@ed01cel02 ~]# df -h

Filesystem            Size  Used Avail Use% Mounted on

/dev/md5              9.9G  5.6G  3.9G  59% /

tmpfs                  12G     0   12G   0% /dev/shm

/dev/md7              2.0G  641M  1.3G  34% /opt/oracle

/dev/md4              116M   65M   45M  60% /boot

/dev/md11             2.3G  119M  2.1G   6% /var/log/oracle

 

 

Question: what is Oracle recommendation for this problem? how to free space in the cell ?