Hearing the range is 600-800 range (rumor!) although nothing has been posted on the California WARN site yet (which only identifies those laid off in CA). As I understand it (but cannot confirm) is that part of the reason Hitachi Vantara layoffs give 1-2 months on payroll (plus package) after layoff is so they can delay reporting until those impacted are no longer active but still on payroll. Sales got hit badly. As other posts note, engineers were hit earlier.
Morale is in the tank, badly.
Good luck friends.