SSD drives provide excellent performances with a really low latency. They perform especially well with random access patterns. Our SSD storage provide an average latency of 550 μs (550 microseconds) when a traditional rotating drive has a latency of several milliseconds.
We provide 2000 IOPS (an IO is a 4K random read or write access) per 50GB chunk you buy. It means that if you buy a 150GB volume (3 chunks), you will get about 6000 IOPS (3x2000).
To enjoy the performance of your volume, your application needs to use parallel IO.
Each server has access to a pool of local drives. These drives are exported to servers via the NBD protocol which effectively makes them network drives. However, network between these drives and C1 nodes are dedicated PCB tracks which ensures minimal latency and avoids network congestion.
There is no redundancy on these volumes, you need to handle redundancy on your side! They are archived to a permanent storage when you start and stop your server.
Local volumes are 100% SSD drives which are able to deliver a lot of IOPS and are perfect for random read/write patterns. The maximum size of LSSD volumes is 150GB.
The total bandwidth of your local volumes is limited by the network link.
The C2L has a special type of volume called
DSSD. DSSD are directly connected to the server through a SATA port. They offer excellent performances and are ideal for distributed databases or caching.
They are unmanaged and tied to the physical server. If you archive your server, we won’t copy the content of the DSSD and the content will be destroyed. Make sure to save the content before stopping the server!
We plan to support distributed redundant volumes in a near future. Stay tuned!
All volumes provide storage backed by SSDs. Our Next Generation Virtual Cloud Server provide blazing fast NVMe SSD storage.
We already got requests about this feature, this will come sooner than later! You will be able to read and modify them as raw devices.