Limitations

The following are a few limitations that you can encounter while using Block Storage:

  • We guarantee operation for the selected operating systems until the vendor or upstream support is available.

  • Microsoft Windows Server versions are also supported until vendor support is available. For more information, see Prerequisites.

  • The following volume minimum and maximum values apply based on the storage type.

Storage Volume

HDD Storage

SSD Premium

SSD Standard

Minimum size per volume

1 GB

1 GB

1 GB

Maximum size per volume

4 TB

4 TB

4 TB

Maximum Read/write speed, sequential

-

600 Mb/s per volume at 1 MB block size

300 Mb/s per volume at 1 MB block size

Maximum Read speed, full random

-

45,000 IOPS at 4 KB block size and minimum 4 Cores, 4 GB RAM per volume

24,000 IOPS at 4 KB block size and minimum 2 Cores, 2 GB RAM per volume

Maximum Write speed, full random

-

30,000 IOPS at 4 KB block size and minimum 4 Cores, 4 GB RAM per volume

18,000 IOPS at 4 KB block size and minimum 2 Cores, 2 GB RAM per volume

Larger volumes can be made available on request. For more information, contact IONOS Cloud Support.

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