# Specifications

GreenNode's FileStorage storage service currently supports standard HDD **in** region **HCM04** . Below are details about the performance and specifications of this type of drive that we offer:

<table><thead><tr><th width="246">Specification</th><th>EFS HDD</th><th>EFS SSD</th><th>EFS High Performance</th></tr></thead><tbody><tr><td>Client connections</td><td>Recommended limit of 500</td><td>Recommended limit of 500</td><td>Recommended limit of 500</td></tr><tr><td>File Size</td><td>Up to 16 TiB</td><td>Up to 16 TiB</td><td>Up to 16 TiB</td></tr><tr><td>Number of files</td><td>5mil files per 1 TiB of capacity</td><td>5mil files per 1 TiB of capacity</td><td>5mil files per 1 TiB of capacity</td></tr><tr><td>Read throughput</td><td>120MiB/s</td><td>Up to 1024MiB/s</td><td>Up to 12GBps</td></tr><tr><td>Write througput</td><td>120MiB/s</td><td>Up to 500MiB/s</td><td>Up to 3GBps</td></tr><tr><td>Read IOPS</td><td>1500</td><td>Up to 10000</td><td>Up to 200,000</td></tr><tr><td>Write IOPS</td><td>500</td><td>Up to 3000</td><td>Up to 20,000</td></tr><tr><td>Protocol support</td><td>NFSv4+, SMBv2+</td><td>NFSv4+, SMBv2+</td><td>NFSv4+</td></tr><tr><td>Scaling direction</td><td>Up only</td><td>Up only</td><td>Up only</td></tr><tr><td>Minimum scaling units</td><td>1GiB</td><td>1GiB</td><td>1GiB</td></tr></tbody></table>