I have a hardware Adaptec ASR8405 RAID controller on which I have 15 disk RAID6 Array. One of the disks broke and after the replacement the Controller did not pick up on it, did not start the rebuild but went into Failed state instead (see below):
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Logical device information
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Logical Device number 0
Logical Device name : LogicalDrv 0
Block Size of member drives : 512 Bytes
RAID level : 6 Reed-Solomon
Unique Identifier : A0E20532
Status of Logical Device : Failed
Additional details : Initialized with Build/Clear
Size : 74347510 MB
Parity space : 11438080 MB
Stripe-unit size : 256 KB
Interface Type : Serial ATA
Device Type : HDD
Read-cache setting : Enabled
Read-cache status : On
Write-cache setting : Enabled
Write-cache status : Off
Partitioned : No
Protected by Hot-Spare : No
Bootable : Yes
Failed stripes : No
Power settings : Disabled
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Logical Device segment information
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Segment 0 : Present (5723166MB, SATA, HDD, Enclosure:0, Slot:0) K1JG4N8D
Segment 1 : Present (5723166MB, SATA, HDD, Enclosure:0, Slot:1) K1JGHL7D
Segment 2 : Missing
Segment 3 : Present (5723166MB, SATA, HDD, Enclosure:0, Slot:3) K1JGE6ZD
Segment 4 : Present (5723166MB, SATA, HDD, Enclosure:0, Slot:4) K1JEWTND
Segment 5 : Present (5723166MB, SATA, HDD, Enclosure:0, Slot:5) K1JENR3D
Segment 6 : Present (5723166MB, SATA, HDD, Enclosure:0, Slot:6) K1JG2U0D
Segment 7 : Present (5723166MB, SATA, HDD, Enclosure:0, Slot:7) K1JG66ED
Segment 8 : Present (5723166MB, SATA, HDD, Enclosure:0, Slot:8) K1JGHJ6D
Segment 9 : Present (5723166MB, SATA, HDD, Enclosure:0, Slot:9) K1JGELLD
Segment 10 : Present (5723166MB, SATA, HDD, Enclosure:0, Slot:10) K1JG5XYD
Segment 11 : Present (5723166MB, SATA, HDD, Enclosure:0, Slot:11) K1JGSTJD
Segment 12 : Present (5723166MB, SATA, HDD, Enclosure:0, Slot:12) K1JG339D
Segment 13 : Present (5723166MB, SATA, HDD, Enclosure:0, Slot:13) K1JG16KD
Segment 14 : Present (5723166MB, SATA, HDD, Enclosure:0, Slot:14) K1JEX09D
As you can see the disk in Segment2 of the Logical Device is reported as missing, however it shows up when checking for Physical Devices (with ready state):
Device #2
Device is a Hard drive
State : Ready
Block Size : 512 Bytes
Supported : Yes
Programmed Max Speed : SATA 6.0 Gb/s
Transfer Speed : SATA 12.0 Gb/s
Reported Channel,Device(T:L) : 0,6(6:0)
Reported Location : Enclosure 0, Slot 2(Connector 0)
Reported ESD(T:L) : 2,0(0:0)
Vendor : ATA
Model : HGST HUS726060AL
Firmware : T907
Serial number : K1GVY99D
World-wide name : 5000CCA255CC3FA3
Reserved Size : 4225560 KB
Used Size : 0 MB
Unused Size : 5719040 MB
Total Size : 5723166 MB
Write Cache : Enabled (write-back)
FRU : None
S.M.A.R.T. : No
S.M.A.R.T. warnings : 0
Power State : Full rpm
Supported Power States : Full rpm,Powered off,Reduced rpm
SSD : No
Temperature : 42 C/ 107 F
NCQ status : Enabled
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Device Phy Information
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Phy #0
PHY Identifier : 0
SAS Address : 50000D1701875C02
Attached PHY Identifier : 2
Attached SAS Address : 50000D1701875C3F
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Runtime Error Counters
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Hardware Error Count : 0
Medium Error Count : 0
Parity Error Count : 0
Link Failure Count : 0
Aborted Command Count : 0
SMART Warning Count : 0
- Question 1: How do I make the Logical Device recognize the disk? I've tried rescan on the LD, clear, verify and initialize on the disk itself but nothing helps...
Question 2: Is there any chance to fix this and recover the data? I have a backup but there is over 40TB of data and recovering this from backup will not be funny.
Question 3: Is there any chance that if I change the LD state to OPTIMAL i will fix itself?
Question 4: Any other ideas on how to fix it?
Many thanks in advance for any hints!
