}
		if diskIndex != 0 && disk == nil {
			t.Errorf("Drive erroneously filtered, driveIndex: %d", diskIndex)
		}
	}
	partsMetadata[0] = partsMetadataBackup // Revert before going to the next test

	// Test 3: Not synchronized DataDir
	partsMetadataBackup = partsMetadata[1]
	partsMetadata[1].DataDir = "foo-random"

	errs = make([]error, len(erasureDisks))

	)

	ErrInvalidConfigDecryptionKey = newErrFn(
		"Incorrect encryption key to decrypt internal data",
		"Please set the correct default KMS key value or the correct root credentials for older MinIO versions.",
		`Revert MINIO_KMS_KES_KEY_NAME or MINIO_ROOT_USER/MINIO_ROOT_PASSWORD (for older MinIO versions) to be able to decrypt the internal data again.`,
	)

	ErrInvalidCredentials = newErrFn(
		"Invalid credentials",

	BaseOptions
	Recursive bool `msg:"r"`
	Immediate bool `msg:"i"`
	UndoWrite bool `msg:"u"`
	// OldDataDir of the previous object
	OldDataDir string `msg:"o,omitempty"` // old data dir used only when to revert a rename()
}

// BaseOptions represents common options for all Storage API calls
type BaseOptions struct{}

// RenameOptions represents rename API options, currently its same as BaseOptions
type RenameOptions struct {

		if globalCustomErasureDriveCount && len(formatErasure.Erasure.Sets[0]) != setDriveCount {
			return fmt.Errorf("%s drive is already formatted with %d drives per erasure set. This cannot be changed to %d, please revert your MINIO_ERASURE_SET_DRIVE_COUNT setting", disks[i], len(formatErasure.Erasure.Sets[0]), setDriveCount)
		}
	}
	return nil
}

// Get backend Erasure format in quorum `format.json`.