Many use just HDDs. The load delay is usually because they don't want to spin up every disk just for one chunk of a file, so they collect jobs and schedule spin up and down times.
But there are dedicated services that indeed use tape.
Many use just HDDs. The load delay is usually because they don't want to spin up every disk just for one chunk of a file, so they collect jobs and schedule spin up and down times.
But there are dedicated services that indeed use tape.