PERC H710 - RAID broken Why?

Question

Initially I have Server having (5 x 1TB) Sata drives with RAID-5 Configuration. Data nearly 3.5TB on it.

We have to save the Data as well as change the configuration with (4 x 1TB) Sata Drives RAID-5.

To backup the data we added (2 x 3TB) SAS drives in rest of the free bays with RAID-0 configuration.

The data successfully copied on new RAID-0.

Deleted the RAID-5 VD, removed the 1 disk and our new configuration is (4 x 1TB) Sata Drives.
Created RAID-5 as per new requirement.

OS Deployment(Windows 2008 Server R2) done on it. Checked the Backup RAID-0 drives in Windows Manager no visibility.

Checked from RAID Configuration, Both Disk which we created for backup (RAID-0), shows in ready state and configured RAID broken.

All the Data lost. Question is Why this happened?

As per my understanding RAID-0 drives should be in-contact, either of 1st RAID-5 change configuration and new OS Deployment.

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Server: Dell PowerEdge R720

RAID Controller: PERC H710

OS: Windows 2008 Server R2

Jordy Dalstra · Answer

Could you post a screenshot of your Windows Disk Manager and your raid controller config

asdaqmalik · Answer

Running Configuration RAID-5 (5 x 1TB) VD1

New Design RAID-5 to make (4 x 1TB) VD1'

For Backup purpose RIAD-0 (2 x 3TB) VD2

only VD1 Storage showing in the Window Disk Manager.

I dont have screen shots right now.

RAID Controller broken the VD2 (2 x 3TB) after the installation of OS on VD1 and the both Disk now in ready state.

I just want to know that either its a RAID normal behavior or something went wrong.

PowerEdge HDD/SCSI/RAID