FAQ - Storage, Templates, Snapshots

How does your storage system work?

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We completely rely on Enterprise SSD storage from well-known brand manufacturers such as Intel or Samsung. All data on our storage is replicated to at least three independently operating storage servers.
Our storage works independently of the server host systems, so that a highly available data storage is also guaranteed, if a server host system has failed. Your storages are always available at any data center location. We don’t want to distribute the data across the boundaries of a data center, so you can always decide 100% where your data is stored.

How much temporary "ephemeral" storage do I have per server?

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Our servers have no temporary, or ephemeral, storage. Every storage you create is always persistent block storage.

Is there a size limit for storages?

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We allow a maximum of 200 GB per storage as standard. However, our architecture also allows you to create storages with several terabytes. If you need to adjust your personal limits, just contact us.

Can I use other storages on a server besides the operating system storage?

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You can currently attach up to 8 storages to a cloud server. A new storage (without template) behaves like an empty hard disk. Before you can use the SSDs, a filesystem must be created (and partitions if necessary).

Can I assign servers, storages, snapshots, etc. to another user?

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No – this is not yet possible, but is planned for the near future.

How do I increase the size of my drive on the fly?

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You can adjust the storage space of the storage in the panel in the settings of your storage. In order for the new size to be usable, however, the filesystem has to be re-partitioned and enlarged. We show you how to do this in our tutorial Resize Storage on the fly – without rebooting your server.

Can I use a storage in multiple servers at the same time?

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Technically we have already implemented this function, but so far we lack the concrete purpose for it. Most file systems (EXT3/4, ReiserFS, BTRFS, NTFS etc…) are immediately damaged if they are integrated several times into one (or different) operating systems. To prevent accidental data loss, we have decided to leave the function deactivated for the time being.
Do you have a specific application or scenario for this function? Then feel free to contact us.

Can I use other storage than your SSD storage for my servers – e.g. for backup or archiving?

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For backups you can use our S3 Object Storage. However, the backup software you use must support this. For example, we have had very good experiences with “Duplicity” here. For VMs, we only offer our SSD-based storage in the familiar three speed classes.

When can I take a snapshot of my storage?

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At gridscale you can always create a new snapshot. It doesn’t matter if your storage is connected to a server or if the server has just started.
Please note that your file system may not be properly mapped in a snapshot when the connected server is running and data is read/written from your storage.

What do I have to consider with your Object Storage?

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You can use or configure the gridscale Object Storage via the panel: https://my.gridscale.io/ObjectStorage/.
Our object storage is S3 compatible, you only need to enter the host name through gos3.io
and connect you to Key and Secret. After the successful connection you will see your buckets.

What else can I do with snapshots?

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The snapshot function allows you to roll back a storage to an earlier state. You can also create a new, custom template from a snapshot and use it to install your servers. This allows you to create individual server templates that allow you to start new, pre-configured systems within seconds. You can also export your snapshots to the Object Storage, e.g. for backups and archives

Which tool can you recommend for uploading to object storage?

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If you want to upload larger data into your object storage, we recommend Cyberduck (Mac, Windows), S3cmd (Linux, Mac).

How can I restore a snapshot?

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When rolling back a storage to the previous state, it is important that you first shut down the server.
Then click on the affected storage and simply select the desired snapshot. Request the rollback and in a few seconds the storage is reset to the previous state. Please keep in mind that you will lose all changes made after the snapshot was taken.

Which virtualization software and storage do you use?

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We use KVM and a distributed SSD storage backend. Our provisioning stack is an in-house development, as this was the only way to meet our high standards of quality, performance and availability.

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