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Forum Discussion
Hot Spare status
All, I have always wondered what the hot spare is doing while waiting to be put into action. Is it powered up and eating power or is it powered down until needed. Hopefully the latter is true...
While I have no definitive answer, I would think not. If the drive were idle and not spinning, the OS could not keep track of it. I would think that it is all or nothing, either all spun down or all spun up.
However, since you have an Ultra, there is another thread where they determined that when spun down, only two are actually spun down and two stay active. This is due to the PSU limitation. When booting the drives are spun up one at a time, but when waking from the sleep (spun-down) mode, the PSU does not have enough power to spin all four simultaneously.
However, since you have an Ultra, there is another thread where they determined that when spun down, only two are actually spun down and two stay active. This is due to the PSU limitation. When booting the drives are spun up one at a time, but when waking from the sleep (spun-down) mode, the PSU does not have enough power to spin all four simultaneously.
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