FSX custom backup cloud formation template Failing to create stack

Thanks for bringing this to our attention. A fix to the template has been published that resolves this issue. Please launch a new CloudFormation stack using the updated version of the template - (https://s3.amazonaws.com/solution-references/fsx/backup/fsx-scheduled-backup.template). Let us know if this resolves your issue.

Thanks, I will try this out today!

I was able to create a backup plan using the cloud formation template and setting the backup frequency to 1-hour intervals.

I would like to set to 30 min intervals. I tried changing the 6 to a 0.5 in the CRON schedule (shown below) and the cloud formation template errored out (so I set it to 1-hr instead and that was fine).

How would I get backups every 30 min?

# Schedule for creating backups (and purging expired)
CronSchedule:
Description: CRON schedule for backups (default every 6 hours)
Type: String
Default: "0 0/6 ** ** ? *"

Hi BTS,

You can specify the following string for the CRON schedule to take backups every 30 minutes:
0/30 ** ** ** ? **

As described in the Amazon CloudWatch documentation page about Schedule Expressions for Rules (https://docs.aws.amazon.com/AmazonCloudWatch/latest/events/ScheduledEvents.html):

• The CRON schedule string specifies values for six fields: Minutes, Hours, Day-of-month, Month, Day-of-week, and Year.
• The / (forward slash) wildcard specifies increments. The 0/30 value for the Minutes field specifies every thirtieth minute, starting from the first minute of the hour.
  ** The ? (question mark) wildcard specifies one or another. You can't specify the Day-of-month and Day-of-week fields in the same cron expression. If you specify a value (or a **) in one of the fields, you must use a ? (question mark) in the other.

You can also see the Examples section of the page referenced above for more examples of schedule expressions.

Thank you,
Amazon FSx team

Thanks

The cloud formation template is working great now, thanks.