Local disks

Last update: September 06 2024

Local disks

The local disk is connected directly to the Compute Server via the PCIe interface using the NVMe protocol. Therefore, a local disk can only be created with cloud database cluster.

The local disk has no network latency, so it is suitable for tasks that are sensitive to read and write speeds.

Performance and throughput⁠

Local disk performance and throughput in fixed Standard and HighFreq configurations is dependent on disk size.

To see a list of available configurations, see the instructions Versions and configurations.

Standard

	Disks up to 700 GB	Disks 700 GB.
Throughput	300 MB/s.	350 MB/s.
Performance (reading)	12,800 IOPS	19,200 IOPS
Performance (recording)	6,400 IOPS	9,600 IOPS

HighFreq

	Disks up to 700 GB	Disks 700 GB.
Throughput	300 MB/s.	350 MB/s.
Performance (reading)	12,800 IOPS	19,200 IOPS
Performance (recording)	6,400 IOPS	9,600 IOPS

Dedicated

	Medium	Large
Throughput	7,000 MB/s.	7,000 MB/s.
Performance (reading)	1,500,000 IOPS	1,500,000 IOPS
Performance (recording)	750,000 IOPS	750,000 IOPS

Local disk features⁠

• SSD NVMe disk;
• The disk subsystem is configured in RAID 1 for the Dedicated line and RAID 10 for the other lines;
• a cloud database can only have one local disk;
• cannot be disconnected from the cloud database and connected to another database;
• you can't enlarge only the local disk, you can only reconfigure nodes;
• is deleted with all data when the node is deleted.