Use OPTI-FLASH-NVME for boot disks, databases, production apps and anything I/O-heavy. Use OPTI-COLD-HDD for archives, backups and data you rarely read. In Miami (US1), OPTI-FLASH-NVME costs $0.10 per GB per month and OPTI-COLD-HDD costs $0.03 per GB per month.
Compare the two disks
| Disk | Media | Price | Best for |
|---|---|---|---|
| OPTI-FLASH-NVME | NVMe | $0.10 per GB per month | Databases, production apps, logs and I/O-heavy services |
| OPTI-COLD-HDD | HDD (NLSAS) | $0.03 per GB per month | Archives, backups and data you rarely access |
List prices from the Optidata console catalog, Miami (US1), USD, as of September 22, 2026.
When to use each
OPTI-FLASH-NVME
- The default and recommended disk for new volumes and boot disks in the pricing calculator.
- Managed database nodes where tables are latency-sensitive.
- Application data, logs and services with heavy reads and writes.
OPTI-COLD-HDD
- Archives and backup copies you keep on a server.
- Large datasets you read rarely, where cost per GB matters more than latency.
- Cold data on a managed database node, such as archive tables.
Storing files to serve over HTTP or share between servers? Object Storage may fit better than a disk. See Object Storage.
Size limits
| Where | Size | Notes |
|---|---|---|
| Block Storage volume | 10 GB to 10,240 GB | Steps of 10 GB, up to ten volumes per server in the pricing calculator |
| Managed database node | 50 GB to 10,000 GB | Per node, billed per GB. Replicas get their own disk |
Every Compute instance starts with a root volume, created automatically. Add volumes as data grows, without moving to a larger instance first. Volumes are priced per provisioned GB.
Cost examples
Monthly list price per volume, at the price per GB above.
| Size | OPTI-FLASH-NVME | OPTI-COLD-HDD |
|---|---|---|
| 100 GB | $10.00 | $3.00 |
| 500 GB | $50.00 | $15.00 |
| 1,000 GB | $100.00 | $30.00 |
| 5,000 GB | $500.00 | $150.00 |
| 10,240 GB | $1,024.00 | $307.20 |
Size a full server, with volumes, in the pricing calculator.
Names in the console and API
The disks were renamed on September 23, 2026. The console catalog and the API may still return the previous names. The offering codes did not change.
| Name | Previous name | Offering code |
|---|---|---|
| OPTI-FLASH-NVME | OPTI-NVME | opti-nvme |
| OPTI-COLD-HDD | OPTI-HDD | opti-hdd |
Frequently asked questions
What is the difference between OPTI-FLASH-NVME and OPTI-COLD-HDD?
OPTI-FLASH-NVME is NVMe storage for low-latency I/O, at $0.10 per GB per month. OPTI-COLD-HDD is lower-cost HDD (NLSAS) capacity for cold data, at $0.03 per GB per month. Both are Block Storage volumes in Miami (US1).
Which disk should I use for a database?
OPTI-FLASH-NVME. It is the disk meant for databases, production apps, logs and I/O-heavy services. Use OPTI-COLD-HDD for archives, backups and data you rarely access.
How big can a volume be?
Between 10 GB and 10,240 GB, in steps of 10 GB, with up to ten volumes per server in the pricing calculator. Managed database nodes take 50 GB to 10,000 GB.
How much does 1 TB on OPTI-FLASH-NVME cost?
Counting 1 TB as 1,000 GB, as the pricing calculator does, OPTI-FLASH-NVME costs $100.00 per month and OPTI-COLD-HDD $30.00 per month, at the list prices in Miami (US1).
Were these disks called something else before?
Yes. OPTI-FLASH-NVME was called OPTI-NVME and OPTI-COLD-HDD was called OPTI-HDD until September 23, 2026. The console catalog and the API may still show the previous names.