Available Storage Classes

This page describes the different storage classes available on APPUiO Cloud zones.

The available storage classes differ depending on the cloud provider hosting the APPUiO Cloud zone.

Block & File storage

Block (RWO) and File (RWX) storage backed persistent volumes are available on all APPUiO Cloud zones:

cloudscale.ch

On cloudscale.ch we provide RWO storage using the csi-cloudscale CSI driver. Additionally, we provide RWX storage on CephFS managed via APPUiO Managed Storage Cluster. The APPUiO Managed Storage Cluster is deployed on encrypted disks.

The following storage classes are available on cloudscale.ch:

Storage Class Access Modes Description

Storage Class	Access Modes	Description
`ssd`	`RWO`	This storage class provides cloudscale.ch `ssd` volumes. If you don’t require `RWX` storage, we recommend using the `ssd` storage class.
`ssd-encrypted`	`RWO`	This storage class provides encrypted cloudscale.ch `ssd` volumes. See the Setup Encrypted Volumes guide.
`bulk`	`RWO`	This storage class provides cloudscale.ch `bulk` volumes. You may want to consider using the `bulk` storage class, if you’re working with very large amounts of data but read/write performance isn’t critical.
`bulk-encrypted`	`RWO`	This storage class provides encrypted cloudscale.ch `bulk` volumes. See the Setup Encrypted Volumes guide.
`cephfs-fspool-cluster`	`RWX`	This storage class provides CephFS volumes. Use this storage class if your application requires `RWX` storage.

ssd

RWO

This storage class provides cloudscale.ch ssd volumes.

If you don’t require RWX storage, we recommend using the ssd storage class.

ssd-encrypted

RWO

This storage class provides encrypted cloudscale.ch ssd volumes.

See the Setup Encrypted Volumes guide.

bulk

RWO

This storage class provides cloudscale.ch bulk volumes.

You may want to consider using the bulk storage class, if you’re working with very large amounts of data but read/write performance isn’t critical.

bulk-encrypted

RWO

This storage class provides encrypted cloudscale.ch bulk volumes.

See the Setup Encrypted Volumes guide.

cephfs-fspool-cluster

RWX

This storage class provides CephFS volumes.

Use this storage class if your application requires RWX storage.

cloudscale.ch bulk

Please be aware that you can only provision bulk volumes in steps of 100GB, since cloudscale.ch doesn’t provide more fine-grained volume sizes for bulk storage.

CephFS encryption

The APPUiO Managed Storage Cluster doesn’t offer volume-level encryption since the CephFS CSI driver doesn’t support volume-level encryption.

Performance

We show representative performance numbers (IOPS and bandwidth) for each storage class below. Please note that we show the best case for write performance here.

Please see the APPUiO Managed Storage Cluster product documentation for an explanation of the benchmarking methodology and a more detailed breakdown of performance numbers.

Exoscale

On Exoscale, we provide both RWO and RWX storage using the APPUiO Managed Storage Cluster. In the APPUiO Managed Storage Cluster, RWO storage is backed by Ceph-RBD, and RWX storage is backed by CephFS. The APPUiO Managed Storage Cluster is deployed on encrypted disks.

The following storage classes are available:

Storage Class Access Modes Description

Storage Class	Access Modes	Description
`rbd-storagepool-cluster`	`RWO`	This storage class provides RBD volumes. If you don’t require `RWX` storage, we recommend using the `rbd-storagepool-cluster` storage class.
`cephfs-fspool-cluster`	`RWX`	This storage class provides CephFS volumes. Use this storage class if your application requires `RWX` storage.

rbd-storagepool-cluster

RWO

This storage class provides RBD volumes.

If you don’t require RWX storage, we recommend using the rbd-storagepool-cluster storage class.

cephfs-fspool-cluster

RWX

This storage class provides CephFS volumes.

Use this storage class if your application requires RWX storage.

Volume-level encryption

The APPUiO Managed Storage Cluster currently doesn’t offer volume-level encryption.

The CephFS CSI driver doesn’t support volume-level encryption, and the RBD CSI driver volume encryption is currently not supported by APPUiO Managed Storage Cluster.

Performance

We show representative performance numbers (IOPS and bandwidth) for each storage class below. Please note that we show the best case for write performance here.

Please see the APPUiO Managed Storage Cluster product documentation for an explanation of the benchmarking methodology and a more detailed breakdown of performance numbers.

The numbers shown here and the numbers shown in the APPUiO Managed Storage Cluster product documentation were collected on different clusters.

Object storage

S3-compatible object storage is available on all APPUiO Cloud zones. See the VSHN Application Catalog documentation for usage and examples.