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Remove KUBE_MAX_PD_VOLS variable in 4.4 #25411

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Sep 11, 2020
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Remove KUBE_MAX_PD_VOLS variable in 4.4 #25411

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13 changes: 2 additions & 11 deletions modules/storage-persistent-storage-aws-maximum-volumes.adoc
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Expand Up @@ -3,17 +3,8 @@
// * storage/persistent_storage-aws.adoc

[id="maximum-number-of-ebs-volumes-on-a-node_{context}"]
= Maximum Number of EBS Volumes on a Node
= Maximum number of EBS volumes on a node

By default, {product-title} supports a maximum of 39 EBS volumes attached to one
node. This limit is consistent with the
link:https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/volume_limits.html#linux-specific-volume-limits[AWS
volume limits].

{product-title} can be configured to have a higher limit by setting the
environment variable `KUBE_MAX_PD_VOLS`. However, AWS requires a particular
naming scheme
(link:https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/device_naming.html[AWS
Device Naming]) for attached devices, which only supports a maximum of 52
volumes. This limits the number of volumes that can be attached to a node via
{product-title} to 52.
link:https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/volume_limits.html#linux-specific-volume-limits[AWS volume limits]. The volume limit depends on the instance type.