June 27, 201016 yr Is it possible to pause rebuild power down and countinue at some other time? I've added a new parity drive and rebuild is in progress, but as it is summer couple of hdd's are going up to 40 C. I would like to do the rebuild at nighttime to save those old drives a little.
June 27, 201016 yr No, you can't pause - you only can cancel and restart later. btw. imho 40 C is nothing to worry about, it's absolutely inside the specs.
June 27, 201016 yr Author Ok, thanks! The added drive is 2Tb and it takes around 2500 minutes to rebuild...
June 26, 20188 yr A "PAUSE" would be nice to add, I am rebuilding and on the same boat. Drive is at 40 deg C and that's at 75 deg ambient. I want to be able to turn off A/C and when drives get a certain temp I would like to pause and sleep drives so I can resume later when they cool down. If I turn of A/C the drives rise to 45 deg C and that's not a good temp... Edited June 26, 20188 yr by m4f1050
June 26, 20188 yr While it's good to keep the average temperature lower, 45°C during rebuild isn't a problem.
June 26, 20188 yr 45C, IMO, is acceptable as a hottest temperature. I prefer 42C or 43C. 46C I start to look at adding more cooling. 45C is just under my limit. As I think was said, 40C is perfectly fine. I'd be careful looking at the specs. Some will indicate that temps of 60C+ are acceptable. Although a high temp may work out fine if the drive is maintained at that temp, for an unraid server where the drive temps are often very low when the drive is spun down, and are therefore bouncing between 25C and 60C frequently, the thermal cycles are going to cause lower life. If you are doing a lengthy operation and drive temps are going above your liking, you may be able to blow a fan on the server's air intake. Even better, open the case and blow a strong fan inside. Works quite well in a pinch.
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