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RAID5 Array problems

R

Raife1

n00b
Joined
Dec 31, 2012
Messages
27
(Title is wrong - it is a RAID6)

Good afternoon everyone,


BLUF - After over a year of flawless operation, my server's RAID6 is flipping out.


First the specs:
OS - Microsoft Windows Home Server 2011 64-bit OEM System Builder - OEM
HD for OS - Seagate Barracuda ST31000524AS 1TB 7200 RPM 32MB Cache SATA 6.0Gb/s 3.5
RAID Controller - HighPoint RocketRAID 2720SGL PCI-Express 2.0 x8 Low Profile SATA / SAS Controller Card
RAID Cables - HighPoint Int-MS-1M4S SFF-8087 to 4 SATA Fan Out Cable
Motherboard - ASUS P8Z68-V LX LGA 1155 Intel Z68 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard with UEFI BIOS
Processor - Intel Core i5-2500K Sandy Bridge 3.3GHz (3.7GHz Turbo Boost) LGA 1155 95W Quad-Core Desktop Processor Intel HD Graphics 3000 BX80623I52500K
Memory - G.SKILL Ripjaws Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model F3-12800CL9D-8GBRL
RAID Drives – (6) WD WD Green WDBAAY0020HNC-NRSN 2TB 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive
Power Supply - Antec NEO ECO 620C 620W Continuous Power ATX12V v2.3 / EPS12V 80 PLUS Certified Active PFC Power Supply

Second the situation
So I go into the basement this morning and hear an ear-splitting whine. So I shut down the server and boot it back up. I go into the WebGUI for my RAID controller and check the Event Log. Apparently between midnight and 1am, three disks failed - channels 1, 2, and 5. Channel 1 failed twice more around 7 am. So I do some research and find out the likely culprit is the disk on channel 1 has likely failed. However, depending on the reboot, sometimes channel 1 is ok, sometimes it is not. Other times the disk on channel 2 fails and of course there is the disk on channel 5 that was part of the original string of failures.

So given that Channel 1 disk had the highest number of failures, I determine I should replace the drive. I do some research and begin to discover that WD Green drives are not good for servers (despite several build guides I referenced when I was build the system in April of last year). So I chose a Seagate STBD2000101 as a replacement. Off to Best Buy.

So I get home, swap out the drive and have a dog of a time getting the RAID controller to add the drive to the array. Get that done and then begin the process of trying to rebuild the array. I start getting more failures on Drive 2 and hence failed rebuilds. Each time I reboot I get a different situation of what is failing and what isn't.

After a couple more tries, I think it is on its way to a successful array rebuild - but I have 5 hours remaining so who knows.

I did read somewhere that normal desktop drives can have issues in RAID due to the TLER (Time-Limited Error Reporting). There were several suggestions to get drive that specifically have TLER, but they are twice the price - to replace/rebuild the entire array would cost me over $1,200.

Any other thoughts on what might be going on. Again - rock stable for over a year and then bam...

Thank for your help.
 
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