For €5 ex. VAT/month, boost your storage performance by 500*!
*number of input/output operations per second (IOPS) on a HDD: up to 100 IOPS. On an SSD DC S3K: up to 75,000 IOPS for reads.
SSDs are definitely the future of storage: they're getting more affordable and offer more storage space than ever before. The lastest generation of SSDs designed for datacentres are now just as reliable as mechanical HDDs, but offer up to 500 times more performance.
Sequential bandwidth (Mb/s)
Hover your mouse over an image for more information.
An SSD can produce 75,000 IOPS (number of input/output operations per second), whereas an HHD can produce just 150.
Where write speed is 115 Mbps for writes on a traditional HDD, it can reach 430 Mbps on an SSD.
SSDs not only have reduced access time; the latency also remains stable, regardless of the load on the SSD. This performance gurantee is a major strength of datacentre SSDs.
Random Latency (ms)
Performance consistency and service quality
It is equally important for servers to have consistent performance as it is for them to have maximum performance. Performance consistency is one of the things that sets apart the SSD datacentre models - like those chosen by OVH - from the consumer SSDs.
Datacentre SSDs scale well in RAID configurations.
SSDs are physically as reliable as the top-end mechanical disks, with a mean time between failures (MTBF) of 2 million hours. The issue with SSDs concerns their durability, as memory cells only support a limited number of write cycles. But don't panic! SSD controllers check that the data is intact after every write. If it isn't, the data is blocked off and written elsewhere.
This process could potentially reduce the available space and reduce performance, but again the datacentre SSDs have capacitors to guarantee higher availability than that which is offered by the consumer models.
Lastly, Intel datacentre SSDs contain Power Loss Imminent (PLI) technology. These SSDs contain capacitors which, in the event of failure, continue to power the electrical circuits to complete any write cycles in progress and to prevent any data corruption.
Mean time between failures (MTBF)
Technologies and features
While classic hard drives are made of magnetic bands and steered by a mechanical arm, solid-state drives (SSDs) are only made of flash memory chips, which speed up the drives significantly.
Detailed spec. of drives available in the OVH Dedicated Server ranges:
|Storage capacity (GB)||Bandwidth (MB/s)||
Operations per second
(IOPS - 4 KB Blocks)
|300 GB||Up to 500 MB/s||Up to 315 MB/s||Up to 75,000 IOPS||Up to 9,000 IOPS||50 µs||50 µs|
|480 GB||Up to 500 MB/s||Up to 410 MB/s||Up to 75,000 IOPS||Up to 11,000 IOPS||50 µs||65 µs|
|800 GB||Up to 500 MB/s||Up to 450 MB/s||Up to 75,000 IOPS||Up to 11,500 IOPS||50 µs||65 µs|