Author Topic: AOC-SASLP-MV8 staggered spin up not working  (Read 2747 times)

Offline Cassius

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AOC-SASLP-MV8 staggered spin up not working
« on: November 24, 2011, 11:58:03 am »
Although I have changed the setting in the bios, all 6 hard disks are spinning up at the same time. I even set 1 drive per group. It shows on screen that each group is spinning up, but actually all drives have already spun-up.

Any ideas?

Drives are:
4 Samsung HD204UI
2 Seagate st2000dl003
« Last Edit: November 24, 2011, 12:06:25 pm by Cassius »

Offline Cassius

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Re: AOC-SASLP-MV8 staggered spin up not working
« Reply #1 on: November 27, 2011, 08:33:26 am »
Digging up some information, I found that PIN 11 of the sata power cable must be set to "high" for staggerd spin up to work. Since I am not using a backplane, I understand that regular power supply cables does not have PIN 11 set as high.

Wonder if there are any settings I could change using hard disk manufactures tools.

Offline Mondo

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Re: AOC-SASLP-MV8 staggered spin up not working
« Reply #2 on: November 27, 2011, 09:58:29 pm »
Cassius - shouldn't you post this over at SuperMicro tech support. Not really a FlexRaid issue.

Having said that I use the same cards and staggered spin up works for me out of the box, standard corsair TX 650 PSU into a backplane. Power derived from 4pin not SATA.

I think your issue could be with the SATA breakout cables you've used. Does everything else work? Full system specs please.



Norco RPC-4224 4U Rackmount Case (24 Hotswap Bays) | Supermicro X9SCM-F Motherboard (four PCI-E 8x slots @ 8x/8x/4x/4x)|4Gi RAM  | Core i3-2100 |2 x Supermicro AOC-SASLP-MV8 SAS Controller | Corsair TX650v2 PSU | Currently 12 TB array, 2 TB parity | WHS 2011

Offline Cassius

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Re: AOC-SASLP-MV8 staggered spin up not working
« Reply #3 on: November 28, 2011, 05:19:26 am »
Right, maybe this is not the right place.

As I said, I am not using a backplane. I am pretty sure regular powercables do not have PIN 11 set accordinly whereas backplanes do.
I have read that some people take the sata power connector apart and modify PIN 11.

Power supply is a Corsair cx600.