With Update 1, the Acronis flagship backup product offers enhancements and addresses issues found in the previous releases.
What's new in Acronis Backup
Improvements added in build 50088
Support for new operating systems:
Windows Storage Server 2016
Windows 10 IoT Enterprise edition
Linux kernel versions 4.6-4.14
Red Hat Enterprise Linux 7.3 and 7.4
Oracle Linux 7.3 and 7.4
CentOS 7.2-7.4
Debian 8.6
Fedora 25-27
Support for new virtualization platforms:
Red Hat Virtualization (RHV) 4.0
VMware vSphere 6.5
Citrix XenServer 7
64-bit Agent for VMware (Virtual Appliance). The agent is designed for VMware vSphere 6.5, is provided as a separate .msi file, and can be imported to an ESXi host as an OVF template.
Support for SMB2 and SMB3 in Agent for Linux, Linux-based bootable media, and Agent for VMware (Virtual Appliance). In Windows, SMB2 and SMB3 are natively supported.
Improvements added in build 50054
Installation
Microsoft SQL Server 2016 can be used to store the databases of Acronis Backup Management Server.
By default, Microsoft SQL Server 2008 Express is installed with Acronis Backup Management Server in Windows earlier than Windows 8.
Applications support
Recovery of Exchange 2016 mailboxes and their contents from database backups.
Protection of Oracle data with disk-level and database-level backups. For database backups, Acronis enables integration of Acronis Backup backup plans with Oracle Recovery Manager (RMAN). More information is available in the "Protecting Oracle Database with Acronis Backup" white paper.
Virtualization
Support for Red Hat Enterprise Virtualization 3.6
Support for Windows Server 2016 with Hyper-V role (agent-less backup of Hyper-V virtual machines)
Supported operating systems
Support for Debian 8.3-8.5, CentOS 7.1, Ubuntu 16.04, and Fedora 24
Support for Linux kernel version 4.5
Other
Updated Linux kernel for Acronis Bootable Media environment to support more modern hardware.
Support for Windows Assessment and Deployment Kit (ADK) for Windows 10, version 1607.
Backups to FTP are no longer automatically split into 2-GB files.
Fixed issues
This section describes issues that have been fixed in Acronis Backup.
Issues fixed in build 50088
[ABR-144209] Recovering a Hyper-V virtual machine fails. The following error appears: "Failed to prepare operations. Error code: 3 'Internal error: Script is inconsistent."
[ABR-144052] Recovering a virtual machine via the management console fails. The following error appears: "Unexpected server behavior".
[ABR-143804] Sometimes, recovering a virtual machine via acrocmd fails. The following error appears: "invalid usage of RestorePartitionChanges."
[ABR-142159] The systeminfo utility crashes on a physical server.
[ABR-141723] Sometimes, Acronis Managed Machine Service crashes in Microsoft Windows Server 2012.
[ABR-139983] Backing up a virtual machine to the first location fails if the second location is not available.
[ABR-138256] USB Attached SCSI Protocol is not supported by Linux-based bootable media.
[ABR-138090] Clicking the Browse button when extracting installation files hangs the setup program.
[ABR-136113] Recovering from a backup of a virtual machine with SAS disks creates a virtual machine with IDE disks.
[ABR-127009] Creating a managed vault without encryption and deduplication fails. The following errors appear: "Failed to add vault", "The vaults are not initialized yet. Please try again later after the storage node is completely initialized."
[ABR-124721] If the disk runs out of space when the metadata of archives stored in a managed vault is being updated after a backup, the entire archive is deleted.
[ABR-123778] Acronis Backup Management Server shows an incorrect operating system version for a managed machine running Microsoft Windows Server 2016.
[ABR-117878] Virtual machines from the same vCenter are not displayed in the Management Console if one of these virtual machines has an empty ID.
[ABR-113547] Sometimes, reindexing a vault cannot find an archive.
[ABR-111478] Backup to SFTP or validation of a backup stored on SFTP hangs in case of network issues.
[ABR-110106] Sending email notifications via Gmail fails on Windows 10. The following error appears: "Failed to connect to the mail server."
[ABR-108372] When backing up virtual machines to FTP, log files are not cleaned up.
[ABR-107264] Acronis Storage Node Service consumes too much memory.
[ABR-98818] Sending email notifications via Yahoo or AT&T SMTP (SSL + port 465) fails. The following error appears: "Failed to connect to the mail server."
[ABR-88455] In case of unstable network connection between Agent for VMware and the vCenter it manages, changes made in the vCenter (renaming a virtual machine, moving a machine to another host, etc.) are not reflected on the management server. As a result, operations with the affected virtual machines, like virtual machine binding, work incorrectly.
[ABR-65978, ABR-69047, ABR-119118] Under WinPE-based bootable media, Acronis Managed Machine Service crashes if a recovery is performed after a backup during the same session.
Issues fixed in build 50073
[ABR-136635] Under Windows XP Professional SP3 (32-bit) and Windows Server 2003 R2, the web installer with a certificate check fails right after start.
[ABR-136528] Rescanning archives fails if the archives are spanned across several tapes.
[ABR-136283] Disk recovery from an archive downloaded via Large Scale Recovery fails.
[ABR-134387] Recovery from the cloud storage fails after the uploading of the initial seeding backup was interrupted, continued, and then successfully completed. The following error appears: "Archive is corrupted."
[ABR-133723] Security improvements for installers: the web installer should download files via https, the installer should check certificates of files.
[ABR-131646] Acronis Removable Storage Management service crashes under Linux.
[ABR-128794] A full Microsoft Exchange data backup is created instead of a transaction log backup.
[ABR-126216, ABR-119317] When backing up a Hyper-V cluster, MMS memory consumption is constantly increasing.
[ABR-121782] Orphaned activities are present on the management server.
[ABR-121294] Acronis Removable Storage Management service crashes after updating from Acronis Backup 11.7.
[ABR-121018] A machine is removed from a dynamic group if it is present in another dynamic group.
[ABR-120652] In some cases, a virtual appliance hangs.
[ABR-120090] In some cases, the management console crashes.
[ABR-119902] The Archives report on the management server shows deleted backups.
[ABR-119815] An indexing operation fails. The following error appears: "Not enough space for deduplication of vault."
[ABR-119520] The storage node deadlocks if a backup deletion is run right after a consolidation fails.
[ABR-119275] After a management server restarts, activities of different agents from one run of a centralized backup plan are shown as separate runs.
[ABR-119113] If one of the backups stored on tapes is invalid, the archive to which this backup belongs is not displayed after a rescanning operation.
[ABR-117997] service_process.exe crashes during a simultaneous backup of multiple virtual machines by the virtual appliance.
[ABR-117338] When backing up Ext4 volumes, the following warning is displayed: "Block bitmap is corrupt."
[ABR-117195] Backup of a network share fails if the share contains locked files.
[ABR-116155] mms.exe aborts after editing a centralized backup plan that backs up a network share.
[ABR-115639] The management server crashes when browsing a Microsoft Exchange database-level backup (list of mailboxes > certain mailbox > Inbox).
[ABR-113392] A Linux machine shows a kernel panic at the startup after an agent installation.
Issues fixed in build 50064
[ABR-118454] A backup or replication to Acronis Backup Storage Node fails after several retries caused by network disconnects. The following error appears: "Operation Not Supported".
[ABR-116419] Overwriting a tape during a full backup fails if the Overwrite a tape in the drive when creating a full backup option is enabled. The following error appears: "Failed to overwrite the data on the tape".
[ABR-115502] A recovered Hyper-V Generation 2 virtual machine running Linux is not bootable.
[ABR-115008] In some cases, a backup or replication to Acronis Backup Storage Node hangs.
[ABR-114961] If a machine running Linux has several modules with the same name installed to different directories, the machine is not bootable after recovery.
[ABR-114855, ABR-114467] In some cases, a recovered machine running Red Hat Enterprise Linux 7 is not bootable.
[ABR-106800] Applying Universal Restore on a machine running Linux succeeds with warning "Failed to patch RAM disk 'initramfs-3.10.0-327.18.2.el7.x86_64.img'".
[ABR-72996] A single-pass backup of Microsoft SQL data completes with warnings if the collation of the system database is case-sensitive and the recovery model of a database is Full.
[ABR-71017] Tape vault browsing performance degrades as the number of full backups in the vault increases. Browsing of 2000 backups takes about 15 minutes.
[ABR-113725] StorageServer.exe crashes during a validation of a deduplicating vault with a corrupted datastore.
[ABR-113880] Acronis Backup Management Server service does not start after a Windows reboot.
Issues fixed in build 50054
Installation
[ABR-108740] The ClientConnectionLimit registry value is reset to default after updating Acronis Backup Storage Node.
Local management
[ABR-109360] Automatic reattempts in case of a network disconnection do not work during a backup to an SFTP server.
[ABR-109183] Validation of an archive that is split between multiple CD/DVD fails.
[ABR-107904] Recovery of a 2 TB+ dynamic LDM/LVM volume to an empty non-initialized disk may result in initializing the target disk as MBR instead of GPT and in reducing the recovered volume size to 2 TB.
[ABR-107732] WinPE 5.0-based bootable media fails to access a network share. The following error appears: "Access to the file is denied."
[ABR-107651] Recovery of the entire machine or individual volumes fails if the following conditions are met simultaneously: a reboot is required, the backup is located on a USB flash drive, and the Fixed drive mode was selected during the backup plan creation. The following error appears: "Cannot recover from the specified backup archive. The archive resides in a location that becomes inaccessible after reboot that is required for recovery."
[ABR-106079] Under bootable media, a recovery from an archive received from Acronis Cloud via the Large Scale Recovery service may fail.
[ABR-106836] Backing up a file with Alternate Data Streams (ADS) that is located on a network share requires user interaction. The following message appears: "The process cannot access file because it is being used by another process."
[ABR-104349] A backup stored on multiple DVDs cannot be detected during the recovery task configuration.
[ABR-103227] Recovering all contents from a file-level backup of an entire volume (for example, C:\ ) does not recover any data.
[ABR-102788] Browsing a vault takes too long if the vault is located on a network share accessible via both NFS and SMB.
[ABR-102152] During a disk-level backup of a volume that contains a huge amount of files (around 100 million), processing the source files exclusion takes too long. The issue occurs even if no exclusions are specified by the user, i.e. when only the default exclusions are applied. As a result, the backup task hangs at 20%.
[ABR-100808] Acronis Managed Machine Service starts slower than expected due to excessive usage of Windows Management Instrumentation (WMI).
[ABR-99999] It is not possible to create a vault on an SFTP server managed by a Mac machine.
[ABR-90055] A touch screen and an additional keyboard are not detected on a Microsoft SurfacePro device under bootable media.
[ABR-85890] Service_process.exe randomly crashes during a backup to an RDX drive.
[ABR-83670] It is not possible to recover a file from a folder via Data view if the folder contains more than 5000 subfolders or files and if the file is not shown in Data view.
[ABR-68252] A single-pass backup of a machine running Active Directory fails after SYSVOL migration (for example, via the dfsrmig tool).
[ABR-60281] During a file-level backup via the command-line interface, the information about folders specified for backup and missing at the time of the backup is not logged. As a result, it is not possible to find out from the log whether a certain folder was backed up or not, only browsing the archive helps.
Centralized management
[ABR-110632] Results in the Tasks' runs report are shifted by 1 day, except for the current day statistics that are correct.
[ABR-110002] During a consolidation or a replication in a deduplicating vault, service_process.exe on Acronis Backup Storage Node consumes too much RAM.
[ABR-109044] While indexing huge (8 TB+) backups stored in a deduplicating vault, Acronis Backup Storage Node consumes too much memory.
[ABR-107612] The Backup plans report shows a wrong backup plan status (for example, OK for plans with errors or warnings).
[ABR-107435] Incremental backups saved to a personal vault append to a wrong full backup if the vault contains more than one full backup and a consolidation was performed earlier.
[ABR-104712] A machine running Windows 2012 with Remote Desktop Services enabled is sometimes shown as offline on Acronis Backup Management Server.
[ABR-104614] When replicating backups between vaults managed by different storage nodes, the replication activity does not show the progress.
[ABR-104102] When backing up a huge (>2 TB) virtual machine to a deduplicating vault, service_process.exe on Virtual Appliance may crash.
[ABR-102653] If a centralized backup plan is applied to two or more machines, subactivities are duplicated as separate activities in the plan details.
[ABR-98809] When multiple backup deletion or consolidation activities are executed simultaneously, the storage node service is deadlocked.
[ABR-98793] A validation of an encrypted deduplicating vault fails if the vault contents were exported from another encrypted deduplicating vault created by Acronis Backup 11.5.
[ABR-96509] After a network share was accessed by using net use from the machine with Acronis Backup Storage Node, creating a managed vault on the network share fails. The following error appears: "Multiple connections to a server or shared resource by the same user, using more than one user name, are not allowed…"
[ABR-96090] In some cases, Acronis Backup Management Server crashes.
[ABR-89456] Simultaneous backups of several virtual machines to a managed vault hang.
[ABR-89440] If the backup consolidation is disabled in the retention rules of a backup plan, Acronis Backup Storage Node nevertheless consolidates backups instead of marking them for deletion.
[ABR-70274] Validation of archives stored in an encrypted deduplicating vault is too slow.
Applications support
[ABR-105005] Recovering a folder with emails from a database-level Exchange backup fails after the following sequence of actions: creating a backup, deleting the folder, creating another backup, trying to recover the folder from the first backup.
[ABR-101531] Recovering application (for example, SQL Server) data from a tape device takes much longer than recovering files of the same total size.
[ABR-102473] When using Acronis SharePoint Explorer to extract a big file (>1 GB) from a single-pass backup, the operation fails.
[ABR-87348] Acronis backup files (.tib) become locked after using Acronis SharePoint Explorer to recover some data from them.
Linux
[ABR-110942] Under bootable media, Acronis Universal Restore does not detect Red Hat Enterprise Linux 7.
[ABR-109444] Under bootable media in the Linux-style volume representation mode, a validation after a backup fails if the backup is saved to DVD.
[ABR-109231] In some cases, browsing files in a backup of an XFS volume fails. The following error appears: "The file is corrupted."
[ABR-108108] Browsing a CIFS network share on a specific NetApp NAS device fails.
[ABR-107978] MultiMediaCards (including NVMe SSD) are not detected properly under bootable media based on kernel 4.4.
[ABR-107442] XFS volumes larger than 16 TB are not recognized properly in the Acronis Backup GUI. It shows that the free space available is 0 bytes.
[ABR-107038] Backup of a huge XFS volume (>16 TB) fails. The following error appears: "Cannot read the snapshot of the volume."
[ABR-106552] Bootable media does not detect Intel fake (half software) RAID 1 built on 3 TB+ disks.
[ABR-105653] Acronis SnapAPI module cannot be compiled under kernel 4.6.
[ABR-103270] It is not possible to browse NFS shares located on specific Fujitsu NAS devices in Linux and under bootable media.
[ABR-100341] Booting a Hyper-V virtual machine with 7 or more NICs into bootable media fails.
[ABR-96081] A specific Linux machine with the GRUB 2 loader is not bootable after recovery.
[ABR-72005] Linux systems running on fake RAID (for example, on Intel Matrix RAID) cannot be recovered to dissimilar hardware.
Tapes
[ABR-106958] In some cases, the information about archives located on a tape is not updated after the tape is erased or overwritten.
[ABR-105906] After upgrading Acronis Backup to version 11.7, it is required to inventory every tape loaded into a standalone tape drive even if this tape was used by Acronis Backup before.
[ABR-103483] Linux-based bootable media crashes while browsing an archive stored on a locally attached tape device.
[ABR-102619] A backup to tapes hangs and fails on certain tape devices.
[ABR-102333] A tape is not ejected during a full inventory operation. The following SCSI error appears: "UNLOAD TAPE FAILURE."
[ABR-102191] All backup plans that save backups to a tape-based managed vault fail if there is one corrupted archive in the vault.
[ABR-101750] If an archive name contains non-English letters, replicating the archive to a tape-based managed vault fails.
[ABR-101431] The information about bytes saved and bytes processed is not saved when backing up to a tape-based managed vault.
[ABR-101315] After updating Acronis Backup from version 11.5 Update 3 or earlier, tape-based managed vaults become unreadable. As a result, a rescanning operation is required to rebuild the tape database.
[ABR-90072] Unexpected 0-size recovery points appear in a DAG Exchange cluster archive saved to a tape-based managed vault.
[ABR-86110] Under bootable media, non-empty write-protected tapes are not properly inventoried and rescanned.
Virtualization
[ABR-101003] Backups of Hyper-V virtual machines may fail due to excessive usage of WMI on a Hyper-V host.
[ABR-100427] Acronis Backup does not detect that an agent is running inside a KVM virtual machine if KVM is running on Red Hat Enterprise Linux 7. As a result, a single Acronis Backup Advanced Universal license or Acronis Backup Advanced for RHEV license cannot be used to back up an unlimited number of virtual machines running on KVM.
[ABR-92178] Acronis Backup does not detect that an agent is running inside a XEN virtual machine if it has the Viridian option enabled. As a result, a single Acronis Backup Advanced Universal license or Acronis Backup Advanced for Citrix XenServer license cannot be used to back up an unlimited number of virtual machines running on XEN.
[ABR-85612] An LVM volume that occupies an entire disk of a virtual machine is not shown in the acrocmd list content command output if the backup of this machine was created by Agent for VMware or Agent for Hyper-V.
[ABR-85413] VMware vCenter integration enabled on Acronis Backup Management Server may incorrectly reflect the changes in the vSphere infrastructure if some of the virtual machines have vSphere annotations specified in the following format: <value 1><space character>=<space character><value 2>.
Known issues
This section describes issues that are currently known and provides solutions to avoid the issues where possible.
Installation
[ABR-102251] Components for Remote installation are not installed if the Acronis Backup setup program is started from a network share.
Solution: Uninstall Components for Remote installation via Control Panel > Programs and Features; copy the setup program to a local folder; repeat the installation of Components for Remote installation.
[ABR-33952] Cannot remotely upgrade Acronis Backup & Recovery 11 Agent for Linux if the upgrade license is added to the license server but the full Acronis Backup & Recovery 11 license is not.
When installing Acronis Backup Management Server to Windows 10, where no Microsoft SQL Server instance is pre-installed, Acronis Backup setup would deploy Microsoft SQL Server 2008 Express. Although Microsoft SQL Server 2008 Express is not officially supported on Windows 10 by Microsoft, such setup was verified and no known issues were found. Workaround: before running Acronis Backup setup, install Microsoft SQL Server 2014 Express or any other edition on the target machine // use pre-installed Microsoft SQL Server 2014 on the target machine or on another machine on the network.
Local management
There is no agentless single-pass disk and application backup of virtual machines (the Microsoft SQL metadata is not cataloged).
Solution: Such VMs should be backed up as physical ones. To do so, the required agents need to be installed into the guest OS.
[ABR-68306] Linux-based bootable media does not detect OCZ RevoDrive 350. Open source Linux drivers for this device are not available.
Solution: Use WinPE-based bootable media.
[ABR-66910] It is not possible to choose a LiveDrive FTP server as a backup location.
Root cause: A LiveDrive FTP server does not comply with the FTP standard concerning the "LIST" command when the command is applied to a specific file. The command execution hangs while waiting for a response from a server.
[ABR-32785] Acronis Backup Management Console displays a disk number instead of a storage space name in the Archive view tab, the Backup Content window, and the Disk management view.
[ABR-31544] No warnings in the log after recovery of files to a ReFS volume if the files have a compressed attribute. Such files are not supported.
[ABR-31547] Recovery of files to a ReFS volume fails if the files have an encrypted attribute.
[ABR-32851] It is impossible to browse and back up volumes on dynamic disks that have a sector size of 4 KB (known as dynamic Advanced Format disks).
[ABR-31348] In Windows 8/Windows Server 2012: Disks that are made members of a storage pool disappear from Acronis Backup Management Console only after restarting Agent for Windows to which Acronis Backup Management Console is connected.
[ABR-32573] The "E00060106: Failed to save data of backup being edited" error appears when mounting a ReFS volume from a disk backup in the Read only access mode.
Solution: Click Ignore.
[ABR-31884] The Backup and Recover items are not disabled in the Windows context menu if only Acronis Backup Agent for Exchange is installed on the machine. The Recover item is also not disabled in the Windows context menu if an Exchange backup is selected in the system.
[ABR-30600] The Wake-on-LAN functionality does not work in Windows 8/Windows Server 2012.
[ABR-35418] A backup of a large amount of data under Linux-based bootable media with the Linux-style volume representation fails if the destination folder name contains a space character.
[ABR-34769] If Acronis Backup is installed in a folder whose name contains non-Latin characters (for example, Cyrillic), backups fail.
[ABR-34665] If Acronis Backup is installed in a folder whose name contains non-Latin characters (for example, Kanji), generating a disaster recovery plan fails.
[ABR-34269] Under bootable media based on WinPE 4.0, the Disk Management view must be absent.
[ABR-32792] Under bootable media, an unclear error message "The file is read-only" is shown while trying to create a folder on a ReFS volume during the recovery task setup.
[ABR-65418] Acronis Startup Recovery Manager fails to start on Linux systems with the XFS file system (e.g, 64-bit CentOS 7.0).
[ABR-32106] When backing up a volume that contains an SQL database in the single-user mode and in use, the backup fails. The error is "Failed to start creating the volume snapshot."
[ABR-28582] During a recovery from a backup stored on FTP, a Linux-based bootable media reboots if the machine has less than 724 MB of RAM.
[ABR-111646] A Hyper-V virtual machine cannot boot into 32-bit bootable media.
Solution: Use 64-bit bootable media.
[ABR-70817] If an entire machine is recovered with reboot and the recovery is initiated from some Linux distributions (for example, Ubuntu 15.10, Red Hat Enterprise Linux 7.2, and Debian 8.1), the operating system is unbootable.
Solution: Recover by using bootable media.
Centralized management
[ABR-27698] The When there is insufficient space while backing up setting for the Clean up archive parameter within the Custom backup scheme does not work if an archive is stored in a managed vault.
[ABR-29591] Storage node settings changed in the Windows registry are not applied until the storage node service restart.
Virtualization
[ABR-112520] In Red Hat Enterprise Virtualization 3.6, it is not possible to add machines for remote installation via From RHEV environment when the username is specified in a non-domain format. The following error appears: "Failed to enumerate datacenters."
Solution: Specify credentials in the following format: "admin@internal".
[ABR-77204] After a Hyper-V virtual machine with a fixed MAC address is recovered to ESX(i), the resulting machine cannot be powered on.
Solution: Adjust the MAC address of the recovered machine manually.
[ABRXII-3548] Acronis Backup Command-Line Tool fails to back up individual disks or volumes of a virtual machine by using Acronis Management Server Service (--service=ams).
Solution: Back up the entire virtual machine instead (do not specify the --disk or --volume parameters).
[ABR-38392] Letters of dynamic volumes of virtual machines are shown incorrectly in the Data to Back Up window.
[ABR-38395] Letters of volumes A and B of virtual machines are shown incorrectly in the Data to Back Up window.