*`<bucket>` is [GCS bucket](https://cloud.google.com/storage/docs/creating-buckets) name.
*`<path/to/backup>` is the path to backup made with [vmbackup](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/app/vmbackup/README.md) on GCS bucket.
*`<local/path/to/restore>` is the path to folder where data will be restored. This folder must be passed
to VictoriaMetrics in `-storageDataPath` command-line flag after the restore process is complete.
The original `-storageDataPath` directory may contain old files. They will be susbstituted by the files from backup,
i.e. the end result would be similar to [rsync --delete](https://askubuntu.com/questions/476041/how-do-i-make-rsync-delete-files-that-have-been-deleted-from-the-source-folder).
Path to file with GCS or S3 credentials. Credentials are loaded from default locations if not set.
See https://cloud.google.com/iam/docs/creating-managing-service-account-keys and https://docs.aws.amazon.com/general/latest/gr/aws-security-credentials.html
Whether to enable reading flags from environment variables additionally to command line. Command line flag values have priority over values from environment vars. Flags are read only from command line if this flag isn't set
-envflag.prefix string
Prefix for environment variables if -envflag.enable is set
Whether to use pread() instead of mmap() for reading data files. By default mmap() is used for 64-bit arches and pread() is used for 32-bit arches, since they cannot data files bigger than 2^32 bytes in memory
Allowed percent of system memory VictoriaMetrics caches may occupy. Too low value may increase cache miss rate, which usually results in higher CPU and disk IO usage. Too high value may evict too much data from OS page cache, which will result in higher disk IO usage (default 60)
-skipBackupCompleteCheck
Whether to skip checking for 'backup complete' file in -src. This may be useful for restoring from old backups, which were created without 'backup complete' file
Source path with backup on the remote storage. Example: gcs://bucket/path/to/backup/dir, s3://bucket/path/to/backup/dir or fs:///path/to/local/backup/dir
Destination path where backup must be restored. VictoriaMetrics must be stopped when restoring from backup. -storageDataPath dir can be non-empty. In this case the contents of -storageDataPath dir is synchronized with -src contents, i.e. it works like 'rsync --delete' (default "victoria-metrics-data")
