Version 3.1.1-HF2 On-Premises

January 2026

Important

• Refer to the knowledge base article, How to Upgrade SonicCore and NSM in Closed Network for detailed instructions on upgrading NSM in closed network environment.
• Refer to the knowledge base article, Upgrade using management console for detailed instructions on a system upgrade. Prior to update, you need to create a system backup of the NSM on-premises system in case you need to roll back to the prior version. Refer to Backup and Restore an NSM On-Prem System for detailed instructions.

• Refer to knowledge base article, How to Upgrade On-Prem Network Security Manager firmware for detailed instructions on upgrading NSM firmware using SWI files.

Compatibility and Installation Notes

• Most popular browsers are supported, but Google Chrome is preferred for the real-time graphics display on the Dashboard.
• A MySonicWall account is required.

• Capacity Requirements: The capacity requirements for an NSM On-Premises deployment have changed:

  Supported Platforms

  Platform	Platform Details
  VMware	Supported versions: ESXi 7.0, 8.0
  Hyper-V	Windows 2019, 2022
  KVM	Linux Kernel 5.15 LTS
  Azure	Standard_D4_v2 Standard_D5_v2 Standard_D16as_v5 Standard_D8as_v5

  Management Only

  Number of Firewalls	CPU (Cores)
  100	4
  150	4
  250	8
  500	8
  750	8
  1000	8
  1000+	16

  Management Only

  Number of Firewalls	CPU (Cores)	RAM (GB)
  100	4	16
  150	4	16
  250	8	16
  500	8	16
  750	8	16
  1000	8	16
  1000+	16	32

  Management, Reporting and Analytics

  Number of Firewalls	CPU (Cores)	RAM (GB)
  100	4	24
  150	4	24
  250	8	24
  500	8	32
  750	8	32
  1000	8	32
  1000+	16	64

  Reporting Disk Space Requirements (Data Storage + Cache)/SSD

  Number of Firewalls	Data Retention 7 days	Data Retention 365 days
  50	600 GB	750 GB
  100	1.2 TB	1.5 TB
  150	1.7 TB	2.3 TB
  250	2.8 TB	4 TB

  Distributed Deployments Sizing Guideline

  Number of Firewalls	NSM Nodes
  ≤ 250	NSM Controller Node / Single Node Deployment
  > 250	Controller Node + 1 Reporting Agent per 250 firewall
  Reporting Agent resource requirements (CPU and RAM ) is the same as the controller node.

• Upgrade Instructions:

  • We strongly recommend using the system update method to upgrade NSM using steps captured in the Upgrade using management console.
  • Minimum 50% of the free disk space is required to upgrade.

  Current Build	Upgrade Path to 3.1.1 HF2 On-Prem
  NSM 3.1.0	NSM 3.1.0 > NSM 3.1.1 > NSM 3.1.1 HF2
  NSM 3.1.1	NSM 3.1.1 > NSM 3.1.1 HF2
  NSM 3.1.1 HF1	NSM 3.1.1 HF1 > NSM 3.1.1 HF2

What's New

• This hotfix provides the ability to delete uploaded firmware files for firewall upgrade from NSM. After installing the hotfix, users can delete firmware files from the All Tenant or a specific tenant scope by navigating to Manager View > Firewalls > Inventory table. At the top right of the table, click More Options and then Delete All Firmware Image.

• This hotfix has all the fixes available in 3.1.1-HF1.

Resolved Issues

No Resolved Issues in this release.

Known Issues

No Known Issues in this release.

Additional References

NSM-33436