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Computer Freezes When Raid Array Powers Up

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6 replies to this topic

#1
BigXor

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I have an Adaptec 5445 + HP Expander v2.08 connected to a Raid 6 array of 8 Hitachi 5k3000 2TB drives and when the array powers up from sleep it freezes the graphics or the computer until the drives are fully spinning and the controller puts them online.

It's not the expander as it also does it if the drives are connected to the controller directly.

More than likely it could be the computer as the speakers buzz also, and they are not connected to the graphics card.

The latest firmware and drivers for everything in the computer are current.
CASE - Norco RPC-4224 4U Rack Server (4 for SATA / 20 for RAID Sets)
MB - MSI 790FX-GD70
CPU - AMD Phenom II 740 Unlocked 4th core and o/c to 3.6Ghz
P/S - Corsair 750 Watt
Graphics - Sapphire HD 4670
SSD - Mushkin Callisto Deluxe 60GB for OS
Adaptec 5445 + HP 24 Port Expander
8 - Hitachi 2TB 5k3000 Raid 6 Data Array
OS - Win XP Pro x64


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#2
5eraph

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Hard drives use the most power when they spin up. Does your controller have an option for staggered spin up? You may also want to consider a power supply with a higher rating.

#3
BigXor

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My drives do stagger up.

My computer goes back to completely normal after it freezes.

Edited by BigXor, 27 September 2011 - 12:37 PM.

CASE - Norco RPC-4224 4U Rack Server (4 for SATA / 20 for RAID Sets)
MB - MSI 790FX-GD70
CPU - AMD Phenom II 740 Unlocked 4th core and o/c to 3.6Ghz
P/S - Corsair 750 Watt
Graphics - Sapphire HD 4670
SSD - Mushkin Callisto Deluxe 60GB for OS
Adaptec 5445 + HP 24 Port Expander
8 - Hitachi 2TB 5k3000 Raid 6 Data Array
OS - Win XP Pro x64

#4
jaclaz

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More than likely it could be the computer as the speakers buzz also, and they are not connected to the graphics card.

Additionally, are you sure that is the speaker that "buzz" and not the PSU that "whines"?

Have a look at:
http://en.wikipedia....ndard_connector
http://en.wikipedia....taggered_spinup

the 5K3000
http://www.hitachigs...deskstar-5k3000
http://www.hitachigst.com/tech/techlib.nsf/techdocs/02D9197756A273D0862577D50024EC1D/$file/DS5K3000_ds.pdf
though "overall" a "grrenish" drive, has impressive needs at spin up:

Startup (max. A) 1.2 (+5V) & 2.0 (+12V)

8 :w00t: of them spinning up simultaneously can bring to it's knees *any* average PSU. :ph34r:

The peak in itself can be as much as 8*(1.2*5+2.0*12)/0.9=266 W

Also, even if oversll the PSU can stand it as Watts, you need ot check tha actual Amperes the single "rails" (at 5 V and 12 V) can deliver.
http://en.wikipedia....wer_supply_rail

Theoretically you need more than 8*1.2=9.6 A @ 5 V AND more than 8*2=16 A @ 12 V concurrently and besides the other needs of the PC, that if you have a fast GPPU card can be also demanding.....

jaclaz

P.S.: cross posting, if your drives are already staggered spinning up, then it is possible that the PSU is failing. Just try a new adequately rated PSU.

Edited by jaclaz, 27 September 2011 - 12:45 PM.


#5
BigXor

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Interesting, I have a 750w single rail psu, but I also have an overclocked 4 core cpu, graphics card, sas expander, raid controller and five other drives. I will connect another psu to the 8 drives by themselves and the rest of the computer will be on the regular psu. This should help identify if I need a larger supply.

I will be back with a reply later.
CASE - Norco RPC-4224 4U Rack Server (4 for SATA / 20 for RAID Sets)
MB - MSI 790FX-GD70
CPU - AMD Phenom II 740 Unlocked 4th core and o/c to 3.6Ghz
P/S - Corsair 750 Watt
Graphics - Sapphire HD 4670
SSD - Mushkin Callisto Deluxe 60GB for OS
Adaptec 5445 + HP 24 Port Expander
8 - Hitachi 2TB 5k3000 Raid 6 Data Array
OS - Win XP Pro x64

#6
allen2

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In my experience, nothing good ever come from making a raid array sleep. The problem you encounter is quite normal, if the array is getting out of sleep that's because you tried to access it and when an OS try to access to a drive not responding fast enough it freeze (i've seen often this behavior).
Also as already said the psu might be having a hard time when the hard drives are waking up, but unless your hard drives have very short spin up sequence there will still be a small freeze when you try to access your raid array.
But i already warned you about this behavior.

#7
BigXor

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I connected a separate 630 watt psu to the array and it still freezes until the array becomes available.

I think I will take allen2 advice and just leave it on.
CASE - Norco RPC-4224 4U Rack Server (4 for SATA / 20 for RAID Sets)
MB - MSI 790FX-GD70
CPU - AMD Phenom II 740 Unlocked 4th core and o/c to 3.6Ghz
P/S - Corsair 750 Watt
Graphics - Sapphire HD 4670
SSD - Mushkin Callisto Deluxe 60GB for OS
Adaptec 5445 + HP 24 Port Expander
8 - Hitachi 2TB 5k3000 Raid 6 Data Array
OS - Win XP Pro x64




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