openstack/tripleo-heat-templates
Code Issues Proposed changes

Add NovaMaxDiskDevicesToAttach parameter

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This change exposes the `[compute]/max_disk_devices_to_attach`
in Nova config. The paramerer sets maximum number of disk devices
allowed to attach to a single server.

Depends-On: https://review.opendev.org/708666
Change-Id: I08c5769bfe5f38d2503ed232b3771f615c24d158
This commit is contained in:
Piotr Kopec 2020-02-19 16:18:03 +01:00
parent ce80dfa47d
commit e4afb3e903
2 changed files with 26 additions and 0 deletions
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19
deployment/nova/nova-compute-container-puppet.yaml
View File

@ -382,6 +382,23 @@ parameters:
default: 0.0
tags:
- role_specific
NovaMaxDiskDevicesToAttach:
type: number
description: >
Maximum number of disk devices allowed to attach to a single server.
Note that the number of disks supported by an server depends
on the bus used. For example, the ide disk bus is limited to 4 attached
devices. The configured maximum is enforced during server create,
rebuild, evacuate, unshelve, live migrate, and attach volume.
Operators changing this parameter on a compute service that is hosting
servers should be aware that it could cause rebuilds to fail, if the
maximum is decreased lower than the number of devices already attached
to servers. Operators should also be aware that during a cold migration,
the configured maximum is only enforced in-place and the destination
is not checked before the move. -1 means unlimited
default: -1
tags:
- role_specific
# DEPRECATED: the following options are deprecated and are currently maintained
# for backwards compatibility. They will be removed in future release.
@ -478,6 +495,7 @@ resources:
nova::cpu_allocation_ratio: NovaCPUAllocationRatio
nova::ram_allocation_ratio: NovaRAMAllocationRatio
nova::disk_allocation_ratio: NovaDiskAllocationRatio
nova::compute::max_disk_devices_to_attach: NovaMaxDiskDevicesToAttach
- values: {get_param: [RoleParameters]}
- values:
NovaVcpuPinSet: {get_param: NovaVcpuPinSet}
@ -549,6 +567,7 @@ resources:
NovaCPUAllocationRatio: {get_param: NovaCPUAllocationRatio}
NovaRAMAllocationRatio: {get_param: NovaRAMAllocationRatio}
NovaDiskAllocationRatio: {get_param: NovaDiskAllocationRatio}
NovaMaxDiskDevicesToAttach: {get_param: NovaMaxDiskDevicesToAttach}
conditions:
enable_instance_ha: {equals: [{get_param: EnableInstanceHA}, true]}

7
releasenotes/notes/add_max_disk_devices_to_attach-e219429d61a64bb0.yaml Normal file
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@ -0,0 +1,7 @@
---
features:
- |
Adds `NovaMaxDiskDevicesToAttach` parameter that controls
`compute/max_disk_devices_to_attach` parameter in Nova.
This parameter sets maximum number of disk devices allowed
to attach to a single server.