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idata
Community Manager
1,037 Views

Unable to rebuild raid 5

Report is below with details:

I have a raid 5 volume with 4 disks. Since they are Green drives, the drives normally have issues and I have to mark it as normal and then rebuild. Anyways, recently, I lost one drive and now I'm unable to rebuild. It keeps saying the drive is missing, no matter what. Therefore, I am unable to rebuild.

I bought a brand new drive and replaced it (exact same drive), but it just won't rebuild, no matter what I do. I am posting this from my secondary PC. My primary PC is ICH10R if that makes any difference.

All 5 drives are there and working just fine, but for some reason it won't read them properly and says it's "failed". It refuses to rebuild and just stays in the "failed" state with a missing drive. I've tried marking the drives as spare and available. As you can imagine, I have some extremely important and sentimental files on this RAID. Any help is GREATLY appreciated. I had a backup solution that died a few months ago

System Report

System Information

 

OS name: Microsoft Windows 7 Professional

 

OS version: 6.1.7600 7600

 

System name: Sameer-PC

 

System manufacturer: System manufacturer

 

System model: Maximus Formula

 

Processor: GenuineIntel Intel64 Family 6 Model 15 Stepping 11 2.394 GHz

 

BIOS: American Megatrends Inc., 1403

Intel® Rapid Storage Technology

 

Kit installed: 10.6.0.1002

 

User interface version: 10.6.0.1002

 

Language: English (United States)

 

Intel RAID controller: Intel(R) Desktop/Workstation/Server Express Chipset SATA RAID Controller

 

Number of SATA ports: 6

 

RAID option ROM version: 8.7.0.1007

 

Driver version: 10.6.0.1002

 

ISDI version: 10.6.0.1002

Device Information

 

Name: Array_0000

 

Size: 7.3 TB

 

Available space: 0 GB

 

Disk data cache: Enabled

 

Number of volumes: 1

 

Volume member: GrandCentral

 

Number of disks: 4

 

Array disk: WD-WCAVY3811045

 

Array disk: WD-WCAVY3641783

 

Array disk: WD-WCAVY3728931

 

Array disk: D-WCAVY3806666:0

Name: GrandCentral

 

Status: Failed

 

Type: RAID 5

 

Size: 5.5 TB

 

Data stripe size: 64 KB

 

Write-back cache: Disabled

 

System volume: No

 

Initialized: Yes

 

Verification errors found: 0

 

Blocks with media errors: 0

 

Physical sector size: 512 Bytes

 

Logical sector size: 512 Bytes

 

Parent array: Array_0000

 

Number of disks: 4

 

Array disk: WD-WCAVY3811045

 

Array disk: WD-WCAVY3641783

 

Array disk: WD-WCAVY3728931

 

Array disk: D-WCAVY3806666:0

Disk on port 0

 

Port location: Internal

 

Status: Normal

 

Type: Hard disk

 

Usage: Available

 

Size: 1.8 TB

 

Serial number: WD-WCAVY3806666

 

Model: WDC WD20EARS-00S8B1

 

Firmware: 80.00A80

 

System disk: No

 

Password protected: No

 

Disk data cache: Enabled

 

Native command queuing: Yes

 

SATA transfer rate: 3 Gb/s

 

Physical sector size: 512 Bytes

 

Logical sector size: 512 Bytes

Disk on port 1

 

Port location: Internal

 

Status: Normal

 

Type: Hard disk

 

Usage: Array disk

 

Size: 1.8 TB

 

Serial number: WD-WCAVY3811045

 

Model: WDC WD20EARS-00S8B1

 

Firmware: 80.00A80

 

System disk: No

 

Password protected: No

 

Disk data cache: Enabled

 

Native command queuing: Yes

 

SATA transfer rate: 3 Gb/s

 

Physical sector size: 512 Bytes

 

Logical sector size: 512 Bytes

Disk on port 2

 

Port location: Internal

 

Status: Normal

 

Type: Hard disk

 

Usage: Array disk

 

Size: 1.8 TB

 

Serial number: WD-WCAVY3641783

 

Model: WDC WD20EARS-00S8B1

 

Firmware: 80.00A80

 

System disk: No

 

Password protected: No

 

Disk data cache: Enabled

 

Native command queuing: Yes

 

SATA transfer rate: 3 Gb/s

 

Physical sector size: 512 Bytes

 

Logical sector size: 512 Bytes

Disk on port 3

 

Port location: Internal

 

Status: Normal

 

Type: Hard disk

 

Usage: Array disk

 

Size: 1.8 TB

 

Serial number: WD-WCAVY3728931

 

Model: WDC WD20EARS-00S8B1

 

Firmware: 80.00A80

 

System disk: No

 

Password protected: No

 

Disk data cache: Enabled

 

Native command queuing: Yes

 

SATA transfer rate: 3 Gb/s

 

Physical sector size: 512 Bytes

 

Logical sector size: 512 Bytes

Disk on port 4

 

Port location: Internal

 

Status: Normal

 

Type: Hard disk

 

Usage: Available

 

Size: 1.8 TB

 

Serial number: WD-WCAZAA974710

 

Model: WDC WD20EARS-00MVWB0

 

Firmware: 51.0AB51

 

System disk: No

 

Password protected: No

 

Disk data cache: Enabled

 

Native command queuing: Yes

 

SATA tran...
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3 Replies
Allan_J_Intel1
Employee
74 Views

Hi there!

A RAID 5 with "failed" status means that you need recreate your RAID structure by creating RAID from scratch. Unfortunately, the RAID BIOS does not offer recover options.

If you need to safe your data, you will need to contact a data recovery company.

Thanks

Allan.

idata
Community Manager
74 Views

How about a degraded RAID 5? How can that be recovered?

Allan_J_Intel1
Employee
74 Views

Hi Bob,

Same thing for a RAID 5 volume. The RAID cannot be recovered if this is under failed mode.

Reply