From memory, I'm going to say 8-10 seconds or so? I definitely remember it being faster than a fresh boot. But again, I'm only running two drives, so not sure how the numbers might change for some of the large arrays that many are running.
Of course, after several days of glorious S3 / WOL use - I dug back into this to write-up my FB,BB (For Beginners, By Beginners) Guide to S3 / WOL . . . and I somehow got things all goofed up. So, this weekend I get to wrestle with two things:
1. Server is no longer responding to magic packet. I'm hoping I just made a bad BIOS tweak - I don't remember doing that but I was in the BIOS the other day and it's plausible.
2. When it is sleeping and waking properly, I noticed that the server no longer negotiates a gigabit connection upon wake-up. It's 1000Mb/s off of cold-boot, but if I check it after wake from sleep, it seems to be coming back at 100Mb/s. It's onboard Realtek 8168b NIC, so I suspect a driver issue - which means I probably won't be able to do much about it other than hope a driver update in next unRAID release cleans it up. Or buy a NIC, but I'm inclined not to go that route if I can help it.
AGW
AGW - Hope you get it sorted out.
Thx BQ for your comments - very helpful.