When' creating a file based VM backup using VCB the "Cannot create temporary redo log directory" error is seen. This occurs with either vcbMounter or the generic/pre-command.wsf scripts. FullVM backups work without issue.

A details log follows:

[YYYY-MM-DD HH:MM:SS.SSS 'App' 800 info] Current working directory: C:\Program Files\VMware\VMware Consolidated Backup Framework
[YYYY-MM-DD HH:MM:SS.SSS 'BaseLibs' 800 info] HOSTINFO: Seeing Intel CPU, numCoresPerCPU 2 numThreadsPerCore 1.
[YYYY-MM-DD HH:MM:SS.SSS 'BaseLibs' 800 info] HOSTINFO: This machine has 1 physical CPUS, 2 total cores, and 2 logical CPUs.
[YYYY-MM-DD HH:MM:SS.SSS 'BaseLibs' 800 info] Using system libcrypto, version 90709F
[YYYY-MM-DD HH:MM:SS.SSS 'BaseLibs' 800 warning] SSLVerifyCertAgainstSystemStore: Subject mismatch: virtualcenter.domain.com vs localhost
[YYYY-MM-DD HH:MM:SS.SSS 'BaseLibs' 800 warning] SSLVerifyCertAgainstSystemStore: The remote host certificate has these problems:
* The host name used for the connection does not match the subject name on the host certificate
[YYYY-MM-DD HH:MM:SS.SSS 'BaseLibs' 800 warning] SSLVerifyIsEnabled: failed to read registry value. Assuming verification is disabled. LastError = 0
[YYYY-MM-DD HH:MM:SS.SSS 'BaseLibs' 800 warning] SSLVerifyCertAgainstSystemStore: Certificate verification is disabled, so connection will proceed despite the error
[YYYY-MM-DD HH:MM:SS.SSS 'vcbMounter' 800 error] Error: Cannot open disk blklst://snapshot-1164[PROD-FC-R10-01] VM/VM.vmdk@localhost?xxxx/xxxx. Cannot open disk file: Error : Cannot create temporary redo log directory.
Unable to check for the existence of an old redo log or failure to choose a filename for a new redo log for disk 'blklst://snapshot-1164[PROD-FC-R10-01] VM/VM.vmdk@localhost'.
Failed to configure disk scsi0:0.
[YYYY-MM-DD HH:MM:SS.SSS 'vcbMounter' 800 error] An error occurred, cleaning up...
Deleted directory d:\mnt\VM

The temporary directory set in the System environmental variables does not exist.

- Select Control Panel | System
- Select the Advanced tab
- Click Environmental Variables
- Under System Variables scroll down to TEMP and TMP
- Ensure this directory exists, or change to an existing directory