To upgrade from Acronis Storage 2.4 to Acronis Software-Defined Infrastructure 2.5, follow this guide:

The document describes manual update for Acronis Storage v. 2.x and all the additional components to the latest available update of Acronis Storage 2.4 and how to update Acronis Software-Defined Infrastructure 2.5 to later updates.

The following requirements must be met before installing upgrade to Acronis Cyber Infrastructure 3.0:

Upgrade requires restart of all nodes.

System requirements for v.2.5

Storage only nodes (the same as in 2.4) or Storage + Management

Type Minimal Recommended

You are trying to update the Storage certificate via CLI according to the article and the following error occurs:

GET '' failed: can't read a response: gzip: invalid header

You have installed Acronis Cyber Infrastructure (Acronis Storage) and registered it in Acronis Cyber Cloud.

You try to register Backup Agent in Acronis Cyber Protect Cloud, but registration fails with:

"Outgoing connections are not available for the following ports: hostname:44445"

The article describes step-by-step how to register new Acronis Backup Gateway (ABGW) with existing ID and connect it to existing NFS share storing existing backup archives remained from the previous installation of ABGW.

In WebCP, some nodes or disks are marked as FAILED and the storage icon is shown in red.

In the output of vstorage -c <clustername> top command some of CSs are in the Failed state.

One or more of the following events are found in the vstorage -c <clustername> get-event output:
MDS WRN: CS#1025 have reported IO error on pushing chunk 1cee of 'data.0', please check disks
MDS ERR CS#1026 detected back storage I/O failure
MDS ERR CS#1026 detected journal I/O failure
MDS WRN: Integrity failed accessing 'data.0' by the client at
MDS WRN: CS#1025 is failed permanently and will not be used for new chunks allocation

On July 16, 2019, Acronis has released a new version of Acronis Software-Defined Infrastructure. The product has been renamed into Acronis Cyber Infrastructure. The product version to this point was 3.0. Current version is 4.7.

You can find release notes for the latest version of Acronis Cyber Infrastructure and earlier versions here.

You can find documentation for the latest version here.

This article explains how to open Acronis Backup Gateway logs. It is required for the troubleshooting storage-related issues.

In Acronis Storage 2.0, logs were written to a .gz file. Since Acronis Storage 2.1, Acronis Software-Defined Infrastructure and Acronis Cyber Infrastructure, logs are written to a .zst file. 

Log location, format and default rotation can be checked in Acronis Backup Gateway configuration file, e.g.:


This article describes upgrade path for Acronis Storage 2.x (AS) / Acronis Software-Defined Infrastructure (SDI) / Acronis Cyber Infrastructure (ACI) Clusters to the latest version.

More information regarding Acronis Support Lifecycle Policy for Infrastructure Products may be found on Acronis Portal.