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SoftNAS® System Requirements

Listed below is a table to assist with the setup decisions during the configuration required to accomplish various tasks and goals.


Configuration Note


For more in-depth guidance on instance size recommendations, see

Small Workloads


Standard: a good starting point in regards to memory and CPU resources.  This category is suited to handle the processing and caching with minimal requirements for network bandwidth.

Medium Workloads


Medium: good for workloads that are read intensive will benefit from the larger memory-based read cache for this category.  The additional CPU will also provide better performance when deduplication, encryption, compression and/or RAID is enabled.

Heavier Workloads

r5.12xlarge or r5.24xlarge

High: This category can be used for workloads that require a very high speed network connection due to the amount of data transferred over a network connection.  In addition to the very high speed network, this level of instance gives you a lot more storage, CPU and memory capacity.


Base RAM


Required for kernel and system operations.

System RAM

16 GB or more for best results

Paired with CPU by instance

Additional RAM

1 GB per 1 TB of deduplicated storage.

Recommended for best performance

e.g.: 50 TB deduplicated storage = 50 additional GB for deduplication tables.


Boot Disk

256 GB Hard disk for Linux boot and system disk (all EC2 instance types provide enough space to install and use SoftNAS®)

Data Disks

Elastic Block Storage (EBS) provides block data storage on Amazon EC2.

Software RAID

Recommended to configure EBS disks using SoftNAS software RAID for increased performance and data durability.


Up to 120 MB/sec

1 GbE

Small to Large instances provide up to 1GbE connectivity. Use High I/O instances to increase network throughput.

HA Networking

Not supported in Amazon EC2.

HA Host Failover

Configure multiple redundant SoftNAS® instances in separate availability zones or different geographic regions.

CRITICAL: Do not use ephemeral disks for write logs. Ephemeral disks are local instance disks providing a much larger second-level read cache than RAM, and are typically more than twice as fast as standard EBS volumes. However, the data stored here is temporary and therefore lost upon each reboot.

Note: Refer to AWS for specific SSD performance metrics.

SoftNAS® System Capacities

Listed below is a table representing the capabilities of the SoftNAS® for Amazon Web Services.

SoftNAS® Capacity

Configuration Note




No capacity limits



No capacity limits


RAM Cache

16 GB to 100 GB

Defaults to 50% total RAM for read cache

SSD Cache

low-speed level 2 cache


Ephemeral Cache

low-speed level 2 cache

Optional for read cache


Maximum Storage

16 PB

Maximum usable storage capacity with SoftNAS®, contingent on license.

#of Storage Pools


#of Volumes


#of Snapshots


#of Snapshot Clones



Unlimited Pools & Volumes

SnapReplicate Throttle

56Kb/sec to Unlimited bandwidth

Active Directory

Kerberos Integration

Files and Directories





NFS Exports:

Linux Default

iSCSI Targets

Linux Default

CIFS Shares

Linux Default

Firewall Ports:

22 (ssh), 443 (https)

Plus NFS, iSCSI, and CIFS as required by network

IP Tables Firewall

Off by default

May be configured but is not required. Use an alternative method to set Security Groups unless added firewall protection on a SoftNAS® instance is required.