Running a system well
How many days of recording should my system store?
Start from the legal minimum for your location and premises type, then add margin: many UAE businesses work to at least 31 days, Saudi sites to 90 and Qatar to 120. Storage needed depends on camera count, resolution, frame rate, compression and whether recording is continuous or motion-based, so ask your installer to calculate it rather than guess.
General information, not legal advice. Rules change and vary by premises type: confirm with the relevant authority or an approved installer.