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Clean-Up the '.patch_storage' Directory

When we patch the database using the OPatch utility, patches are stored in the "$ORACLE_HOME/.patch_storage" directory. Over time old patches can represent a large amount of wasted space. This article demonstrates how to clean up wasted storage associated with old database patches.

Run OPatch Clean-Up

The OPatch utility has its own cleanup routine.

$ORACLE_HOME/OPatch/opatch util cleanup

This will clean up some space, but from experience it rarely picks up all the patches that can be removed.

Manual Clean-Up

If you need to clean up more space, then consider doing the following.

We need to make sure we don't delete any patches that are currently applied to the database. We can do this by checking the output of the opatch lsinventory command as follows.

$ORACLE_HOME/OPatch/opatch lsinventory | grep -E "(^Patch.*applied)|(^Sub-patch)"
Patch  33561310     : applied on Fri Jan 28 05:21:35 GMT 2022
Patch  33515361     : applied on Fri Jan 28 05:15:00 GMT 2022
Patch  29585399     : applied on Thu Apr 18 08:21:33 BST 2019
$

We can see we have three patches applied. Now let's check the contents of the ".patch_storage" directory. We can see we have 14 patches stored there.

cd $ORACLE_HOME/.patch_storage

$ ls -al
total 212
drwxr-xr-x. 17 oracle oinstall  4096 Mar  2 07:20 .
drwxr-xr-x. 72 oracle oinstall  4096 Mar  1 16:00 ..
drwxr-xr-x.  3 oracle oinstall  4096 Apr 18  2019 29517242_Apr_17_2019_23_27_10
drwxr-xr-x.  3 oracle oinstall  4096 Apr 18  2019 29585399_Apr_9_2019_19_12_47
drwxr-xr-x.  4 oracle oinstall  4096 Dec 11  2020 31668882_Sep_14_2020_06_32_18
drwxr-xr-x.  4 oracle oinstall  4096 Dec 11  2020 31771877_Oct_7_2020_21_34_19
drwxr-xr-x.  4 oracle oinstall  4096 Jan 25  2021 32067171_Dec_2_2020_09_24_57
drwxr-xr-x.  4 oracle oinstall  4096 Jan 25  2021 32218454_Jan_14_2021_16_24_38
drwxr-xr-x.  4 oracle oinstall  4096 Apr 27  2021 32399816_Mar_9_2021_06_16_02
drwxr-xr-x.  4 oracle oinstall  4096 Apr 27  2021 32545013_Apr_16_2021_07_40_05
drwxr-xr-x.  4 oracle oinstall  4096 Aug  2  2021 32876380_Jul_5_2021_04_53_50
drwxr-xr-x.  4 oracle oinstall  4096 Aug  2  2021 32904851_Jul_20_2021_09_21_24
drwxr-xr-x.  4 oracle oinstall  4096 Oct 26 12:50 33192694_Sep_14_2021_16_48_27
drwxr-xr-x.  4 oracle oinstall  4096 Oct 26 12:45 33192793_Oct_15_2021_07_09_52
drwxr-xr-x.  4 oracle oinstall  4096 Jan 28 05:16 33515361_Jan_13_2022_06_14_07
drwxr-xr-x.  4 oracle oinstall  4096 Jan 28 05:22 33561310_Jan_5_2022_08_13_10
-rw-r--r--.  1 oracle oinstall 65515 Jan 28 05:21 interim_inventory.txt
-rw-r--r--.  1 oracle oinstall    92 Jan 28 05:21 LatestOPatchSession.properties
drwxr-xr-x. 18 oracle oinstall  4096 Jan 28 05:21 NApply
-rw-r--r--.  1 oracle oinstall  9666 Jan 28 05:16 newdirs.txt
-rw-r--r--.  1 oracle oinstall 65103 Jan 28 05:21 record_inventory.txt
$

It is safe to remove any patch directories that are not part of the initial list from OPatch. In this case that would be the following directories.

rm -Rf 29517242_Apr_17_2019_23_27_10
rm -Rf 31668882_Sep_14_2020_06_32_18
rm -Rf 31771877_Oct_7_2020_21_34_19
rm -Rf 32067171_Dec_2_2020_09_24_57
rm -Rf 32218454_Jan_14_2021_16_24_38
rm -Rf 32399816_Mar_9_2021_06_16_02
rm -Rf 32545013_Apr_16_2021_07_40_05
rm -Rf 32876380_Jul_5_2021_04_53_50
rm -Rf 32904851_Jul_20_2021_09_21_24
rm -Rf 33192694_Sep_14_2021_16_48_27
rm -Rf 33192793_Oct_15_2021_07_09_52

The amount of space saved will vary, but in this case it was 13G.

Hope this helps. Regards Tim...

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