Local disks

Last update: September 12 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

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

Fixed configurations⁠

Local disk performance and throughput in fixed configurations depends on the size of the disk.

Standard

	Disks up to 256 GB	Disks 512 GB	Disks 768 GB.	Disks 1 TB	Disks 1.5 TB	Disks 2 TB.
Throughput	400 MB/s.	500 MB/s	600 MB/s	700 MB/s.	800 MB/s	900 MB/s.
Performance (reading)	25,600 IOPS	40,000 IOPS	50,000 IOPS	60,000 IOPS	70,000 IOPS	80,000 IOPS
Performance (recording)	12,800 IOPS	20,000 IOPS	25,000 IOPS	30,000 IOPS	35,000 IOPS	40,000 IOPS

CPU

	Disks up to 256 GB	Disks 512 GB	Disks 768 GB.	Disks 1 TB	Disks 1.5 TB	Disks 2 TB.
Throughput	400 MB/s.	500 MB/s	600 MB/s	700 MB/s.	800 MB/s	900 MB/s.
Performance (reading)	25,600 IOPS	40,000 IOPS	50,000 IOPS	60,000 IOPS	70,000 IOPS	80,000 IOPS
Performance (recording)	12,800 IOPS	20,000 IOPS	25,000 IOPS	30,000 IOPS	35,000 IOPS	40,000 IOPS

Memory

	Disks up to 256 GB	Disks 512 GB	Disks 768 GB.	Disks 1 TB	Disks 1.5 TB	Disks 2 TB.
Throughput	400 MB/s.	500 MB/s	600 MB/s	700 MB/s.	800 MB/s.	900 MB/s.
Performance (reading)	25,600 IOPS	40,000 IOPS	50,000 IOPS	60,000 IOPS	70,000 IOPS	80,000 IOPS
Performance (recording)	12,800 IOPS	20,000 IOPS	25,000 IOPS	30,000 IOPS	35,000 IOPS	40,000 IOPS

HighFreq

	Disks 128 GB	Disks 256GB	Disks 512 GB	Disks 768 GB.	Disks 962 GB.	Disks 1.22 TB.	Disks 1.5 TB
Throughput	400 MB/s.	500 MB/s	600 MB/s	700 MB/s.	800 MB/s.	900 MB/s.	1,000 MB/s
Performance (reading)	25,600 IOPS	40,000 IOPS	50,000 IOPS	60,000 IOPS	70,000 IOPS	80,000 IOPS	90,000 IOPS
Performance (recording)	12,800 IOPS	20,000 IOPS	25,000 IOPS	30,000 IOPS	35,000 IOPS	40,000 IOPS	45,000 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

Arbitrary configurations⁠

Throughput	300 MB/s.
Performance (reading)	12,800 IOPS
Performance (recording)	6,400 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 reconfigure nodes;
• is deleted with all data when the node is deleted.