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idata
Community Manager
1,745 Views

queuePriorityEnable Registry setting - what does it do?

Hi guys,

simple question: with the Intel Rapid Storage (RST) drivers, I have found the following Reg key at

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\iaStor\Parameters

DWORD: "queuePriorityEnable"=0x00000000

Does anyone know what this does? I am not using an SSD if that matters- just a plain ol' spinning disk (WD 1TB Caviar Black 1001FALS)

RST version is 9.6.5.1001

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3 Replies
idata
Community Manager
99 Views

Hmm...do you want to go first and set it?

idata
Community Manager
99 Views

I am guessing that this wouldn't make any difference in a single-disk setup. It probably means, when the disk queue is full, to give priority to a specific disk and service its I/O requests ahead of any others. Not sure if this is a simple boolean 0/1 setting or if it accepts a range of numbers, perhaps the higher the number the higher the priority, or vice-versa. Who knows, in any case maybe someone who knows for sure can comment?

idata
Community Manager
99 Views

It sure has been awhile -- still nobody has the answer to this one? Anyone from Intel who can shed a little light?

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