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3ware/LSI RAID

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SerratedAuto

Registered
Joined
Sep 20, 2010
Hi guys,

I just saw a configuration failed error on one of my disks in a RAID5 array. I'm not exactly sure what that means - if the metadata for the RAID got screwed up on the drive or if the drive is failing. The disk in question is a relatively new (purchased in February or March) WDC Red 2TB drive, so I'm hoping it's not failing.

I'm not actually in front of my server right now, but here's a dump from running tw_cli via putty on the controller in question:

/c0 Driver Version = 5.01.00.046
/c0 Model = 9750-8i
/c0 Available Memory = 488MB
/c0 Firmware Version = FH9X 5.12.00.016
/c0 Bios Version = BE9X 5.11.00.007
/c0 Boot Loader Version = BT9X 6.00.00.003
/c0 Serial Number = SV00505828
/c0 PCB Version = Rev 001
/c0 PCHIP Version = B2
/c0 ACHIP Version = 05000e00
/c0 Controller Phys = 8
/c0 Connections = 4 of 128
/c0 Drives = 4 of 127
/c0 Units = 1 of 127
/c0 Active Drives = 3 of 127
/c0 Active Units = 1 of 32
/c0 Max Drives Per Unit = 32
/c0 Total Optimal Units = 0
/c0 Not Optimal Units = 1
/c0 Disk Spinup Policy = 1
/c0 Spinup Stagger Time Policy (sec) = 1
/c0 Auto-Carving Policy = off
/c0 Auto-Carving Size = 2048 GB
/c0 Auto-Rebuild Policy = on
/c0 Rebuild Mode = Adaptive
/c0 Rebuild Rate = 1
/c0 Verify Mode = Adaptive
/c0 Verify Rate = 1
/c0 Controller Bus Type = PCIe
/c0 Controller Bus Width = 8 lanes
/c0 Controller Bus Speed = 5.0 Gbps/lane

Unit UnitType Status %RCmpl %V/I/M Stripe Size(GB) Cache AVrfy
------------------------------------------------------------------------------
u0 RAID-5 INITIALIZING - 33% 256K 3725.27 RiW ON

VPort Status Unit Size Type Phy Encl-Slot Model
------------------------------------------------------------------------------
p0 CFG-OP-FAIL - 1.82 TB SATA 0 - WDC WD20EFRX-68AX9N0
p1 OK u0 1.82 TB SATA 1 - WDC WD2002FAEX-007B
p2 OK u0 1.82 TB SATA 2 - WDC WD20EFRX-68AX9N0
p3 OK u0 1.82 TB SATA 3 - WDC WD20EARX-008FB0

Name OnlineState BBUReady Status Volt Temp Hours LastCapTest
---------------------------------------------------------------------------
bbu On Yes OK OK OK 121 15-Mar-2013

Thanks!
 

Automata

Destroyer of Empires and Use
Joined
May 15, 2006
When you get back to the console, check the drive's SMART data to see if it is reporting early signs of failure. The logs of the RAID card should also indicate why it is marking the drive as failed. The information you have given so far only allows us to speculate. It could be as simple as a broken cable or as bad as full drive failure.
 
OP
S

SerratedAuto

Registered
Joined
Sep 20, 2010
All I see is "CONFIG FAILURE" on the list of disks attached to the controller. Looking at the alarms, I see no warning or errors (only INFO). The only strange thing I see is:

May 14, 2013 08:01:03PM (0x04:0x0001): Controller reset occurred: resets=1

which it immediately started rebuilding the array after that (presumably on the spare disk for that controller).

The 3ware gives SMART data, but it is in hex format. The controller software is throwing no errors or warnings, and it appears the drive is still working okay, but with a bad configuration (I'm not sure what that means).
 

Automata

Destroyer of Empires and Use
Joined
May 15, 2006
Do you have the UI to access the card or have you tried accessing it through the RAID card's BIOS? It should give more useful information than from a command line.