From c28c5cfbaa09d1d71ffcea0a78d7303d2203dac6 Mon Sep 17 00:00:00 2001 From: Kroese Date: Mon, 18 Dec 2023 12:36:03 +0100 Subject: [PATCH] docs: Allocation --- readme.md | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/readme.md b/readme.md index 1bf9d6f..c2471ee 100644 --- a/readme.md +++ b/readme.md @@ -89,14 +89,17 @@ docker run -it --rm -p 5000:5000 --device=/dev/kvm --cap-add NET_ADMIN --stop-ti * ### How do I create a growable disk? - By default, the entire capacity of the disk is reserved in advance. To create a growable disk that only allocates space that is actually used, add the following environment variable: + By default, the entire capacity of the disk is reserved in advance. To create a growable disk that only allocates space that is actually used, add the following environment variables: ```yaml environment: + ALLOCATE: "N" DISK_FMT: "qcow2" ``` - This can also be used to convert any existing disks to the ```qcow2``` format. + This can also be used to convert your existing disks to the ```qcow2``` format. + + Please note that disabling preallocation will negatively affect write performance any time the image needs to grow. * ### How do I increase the amount of CPU or RAM?