dell proedge 1950 hard drive rotating green/amber light

Dell ProEdge 1950
(4) 146GB 10k drives
RAID 5 with hot spare
Hyper-V 2012, with one guest OS running server 2012

I have a Dell proedge server with a raid 5 (4) drives including a hot spare.  The hot spare is blinking amber and green at equal internals on the leds.  These are used drives, and a new raid set.  I looked up the lights online and it says it could be indicating failure of the drive.  If I go into bios, the smart data says the drive has no problems, and while in bios the drive is solid green on the led.  In fact, it stays green until the guest OS completely boots, then it switches to the green/amber.  

Is the drive going bad or does this mean something else?
icecom4Asked:
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Scott CSenior EngineerCommented:
I wouldn't trust it.  Not an expensive thing to replace to keep your data safe.
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Wayne88Commented:
It's predictive failure for the drive - blinks green, then amber, and then off, repeating this sequence every two seconds.

Please see Hard-Drive Indicator Codes for the Dell PowerEdge: https://cs.uwaterloo.ca/~brecht/servers/docs/PowerEdge-2600/en/Pe2600/IT/5j721c20.htm
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Seth SimmonsSr. Systems AdministratorCommented:
flashing between amber and green indicates predictive failure though a bit odd it only does it when the OS is running
if it is just the hot spare doing that, not a huge concern though you want to still get that drive replaced

do you have open manage installed?  that is a better tool to work with

http://downloads.dell.com/FOLDER02020149M/1/OM-SrvAdmin-Dell-Web-WINX64-7.4.0-866_A00.exe

once you can look at it through OMSA, if the drive is predictive failure, you should remove that drive as a hot spare, replace the drive, then assign the new drive as a hot spare.  i would also make sure the drive firmware is up to date
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icecom4Author Commented:
Thank you.  Curious then, what is the recommended way to replace a hot spare?  Do I have to power down, boot in bios, then remove as a hot spare in the raid set?  Or can I just replace it while on the fly?
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Wayne88Commented:
If the hot spare is not active and going bad while in stand-by mode then it won't make a difference.  If it's active, as a general rule you don't power down the server when hot-swapping.  You risk higher chance of data corruption this way.

For RAID cards that support hot swapping, you hot swap when the machine is powered on.  Hope that helps.

Wayne
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