Acronis Cyber Protect 15: Operations with archives stored on SFTP fail with a CRC error

Symptoms

You are backing up to an SFTP Storage
Backing up to or restoring from this storage fails with "Data is corrupted: CRC mismatch or internal data structures mismatch"

Full error message

2022-08-09T00:30:04:948+08:00 140256878757632 W00000000: Failed to hold meta info state: Error 0x40002e: Failed to open the backup location.

| line: 0x7650af95bed5e7ba
| file: d:/300/enterprise/backup/places2/impl/sftp_place.cpp:412
| function: DoOpenDir
| path: sftp://10.50.9.25/jbod/ACRONIS_NEW/logs/mstore03/
| user: root
| $module: disk_bundle_lxa64_16428
|
| error 0x40015: Network disconnected.
| line: 0x996f332d1a06a67a
| file: d:/300/core/network/ssh/api.cpp:283
| function: OpenSFTP
| $module: disk_bundle_lxa64_16428
2022-08-09T00:30:04:970+08:00 140256878757632 I00000000: Read SSH configuration: Ciphers=<default> MACs=<default>.
2022-08-09T00:30:08:021+08:00 140256878757632 I00000000: ReindexArchive failed: Error 0x1350016: TOL: Failed to execute the command. Reindexing archive
| line: 0x8d165e86fb819597
| file: d:/300/enterprise/common/tol/command/command.cpp:457
| function: MakeFailResult
| CommandID: DCEA4CED-01A8-4D40-8EBA-D7EEEF96764C
| $module: mms_lxa64_16428
|
| error 0x1350016: TOL: Failed to execute the command. Reindexing archive
| line: 0x8d165e86fb819597
| file: d:/300/enterprise/common/tol/command/command.cpp:457
| function: MakeFailResult
| CommandID: DCEA4CED-01A8-4D40-8EBA-D7EEEF96764C
| $module: staging_command_lxa64_16428
|
| error 0xa100d4: Failed to find archive 'mstore03.army.mil.ph-3CF9BDCF-A099-497B-8F9D-D04316216102-B494AE9D-595B-4C3A-BBE0-394855B5EB83A'.
| line: 0xb320396adfe3e01
| file: d:/300/enterprise/mms/managers/archive/impl/private_manager.cpp:860
| function: FindArchive
| IsReturnCode: 0x1
| $module: disk_bundle_lxa64_16428
|
| error 0xa100c9: Failed to get information about the archives.
| line: 0xd5796a33131eeb98
| file: d:/300/enterprise/mms/managers/archive/meta_info_cache/meta_info_cache.cpp:162
| function: GetArchivesInfo
| $module: disk_bundle_lxa64_16428
|
| error 0x40002e: Failed to open the backup location.
| line: 0x7650af95bed5e7ba
| file: d:/300/enterprise/backup/places2/impl/sftp_place.cpp:412
| function: DoOpenDir
| path: sftp://10.50.9.25/jbod/ACRONIS_NEW/logs/mstore03/
| user: root
| $module: disk_bundle_lxa64_16428

Cause

Backup archives get corrupted when SFTP protocol is used. The issue is going to be fixed in the future releases.

Workaround

The issue has been fixed in P15U5, build 31227.

There are 2 reliable workarounds for earlier builds:

use SMB instead of SFTP;
always recreate an archive whenever you run a backup if SFTP is crucial for a security concept.

Knowledge Base

71509: Acronis Cyber Protect 15: Operations with archives stored on SFTP fail with a CRC error

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Symptoms

Cause

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