Local disks

Last update: March 04 2024

Local disks

The local disk is connected directly to the compute server through the PCIe interface via 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 Line and HighFreq Line configurations depends on the disk size.

Standard Line

	Drives 256 GB	Drives 512 GB	Drives 768 GB	Drives 1 TB	Drives 1,5 TB
Throughput	400 MB/s	500 MB/s	600 MB/s	700 MB/s	800 MB/s
Performance (read)	25,600 IOPS	40,000 IOPS	50,000 IOPS	60,000 IOPS	70,000 IOPS
Performance (write)	12,800 IOPS	20,000 IOPS	25,000 IOPS	30,000 IOPS	35,000 IOPS

HighFreq Line

	Drives 128GB	Drives 256GB	Drives 512GB	Drives 768GB	Drives 962GB	Drives 1.22TB	Drives 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 (read)	25,600 IOPS	40 000 IOPS	50 000 IOPS	60 000 IOPS	70 000 IOPS	80 000 IOPS	90 000 IOPS
Performance (write)	12 800 IOPS	20 000 IOPS	25 000 IOPS	30 000 IOPS	35 000 IOPS	40 000 IOPS	45 000 IOPS

Custom configurations

Throughput	300 MB/s
Performance (read)	12,800 IOPS
Performance (write)	6,400 IOPS

Local Disk Features⁠

• SSD NVMe disk.
• The disk subsystem is configured in RAID 10.
• A cloud database can only have one local disk.
• You cannot disconnect from a cloud database and connect to another database.
• You can't maximize directly, you can only change node configuration.
• Deleted with all data when the node is deleted.