Hi,
I originally had a 3 x 1.5 TB based RAID 5 setup. The HDDs were Seagate 7200 RPM drives. The motherboard is an Asus P5Q, (Chipset Type: Intel P45 Express / Intel ICH10R). When I was running low on space, I decided to expand the array with another 1.5 TB Seagate HDD.
Sadly I did not backup my data before this. Post initiating the RAID expansion, the RAID migration process took about 3 weeks. To complicate things, after the first 2 weeks, the system shutdown for no specific reason. It was not power failure related, as the system is hooked to a UPS. On powering-on the system, my OS (Windows 7 64-bit) did a CHKDSK. The CHKDSK took several hours, and once back in Windows, approximately 850 GB of data, from the 2.72 TB RAID 5 array had gone missing. The drive appeared to have over 900 GB of free space, while previously it had less than 100 GB of free space.
At this point the RAID migration was not done, and had about a week left. Once done I restarted the system as prompted. Again prior to boot-up Win7 did a CHKDSK. Once back in Windows, it displayed a 2.72 TB drive, which was completely free.
What I have done:
1) Tried several data recovery programs: Zero Assumption Recovery / Get Data Back For NTFS 4.0 / iCare Data Recovery Software 4.5 / EASEUS Data Recovery Wizard Professional 5.0.1 / Recover My Files Pro 4.6.8.1012
Some of them are unsuited for recovery from RAID. Most of them show that the HDD is almost full in terms of filesystem structures, but after lengthy scans are unable to find any useful information.
Two programs were able to find around 150 GB of data. On recovery all the files were corrupt and unusable.
What I am yet to do:
1) The Disk Management section (Control Panel-Administrative Tools-Computer Management-Disk Management) now shows a Basic disk with 4191.79 GB. Of which 1397.26 is unallocated. I am yet to extend the partition and use this space.
Assistance Needed:
1) Any suggestions to recover my data?
2) Should I extend the partition to include the unallocated space and re-run the data recovery programs. Will this help?
3) My online research had led me to notes of recovery through Linux. While I’m unfamiliar with the process, is that something that will work? If yes, could I get some guidance on it?
Thanks in advance.
I originally had a 3 x 1.5 TB based RAID 5 setup. The HDDs were Seagate 7200 RPM drives. The motherboard is an Asus P5Q, (Chipset Type: Intel P45 Express / Intel ICH10R). When I was running low on space, I decided to expand the array with another 1.5 TB Seagate HDD.
Sadly I did not backup my data before this. Post initiating the RAID expansion, the RAID migration process took about 3 weeks. To complicate things, after the first 2 weeks, the system shutdown for no specific reason. It was not power failure related, as the system is hooked to a UPS. On powering-on the system, my OS (Windows 7 64-bit) did a CHKDSK. The CHKDSK took several hours, and once back in Windows, approximately 850 GB of data, from the 2.72 TB RAID 5 array had gone missing. The drive appeared to have over 900 GB of free space, while previously it had less than 100 GB of free space.
At this point the RAID migration was not done, and had about a week left. Once done I restarted the system as prompted. Again prior to boot-up Win7 did a CHKDSK. Once back in Windows, it displayed a 2.72 TB drive, which was completely free.
What I have done:
1) Tried several data recovery programs: Zero Assumption Recovery / Get Data Back For NTFS 4.0 / iCare Data Recovery Software 4.5 / EASEUS Data Recovery Wizard Professional 5.0.1 / Recover My Files Pro 4.6.8.1012
Some of them are unsuited for recovery from RAID. Most of them show that the HDD is almost full in terms of filesystem structures, but after lengthy scans are unable to find any useful information.
Two programs were able to find around 150 GB of data. On recovery all the files were corrupt and unusable.
What I am yet to do:
1) The Disk Management section (Control Panel-Administrative Tools-Computer Management-Disk Management) now shows a Basic disk with 4191.79 GB. Of which 1397.26 is unallocated. I am yet to extend the partition and use this space.
Assistance Needed:
1) Any suggestions to recover my data?
2) Should I extend the partition to include the unallocated space and re-run the data recovery programs. Will this help?
3) My online research had led me to notes of recovery through Linux. While I’m unfamiliar with the process, is that something that will work? If yes, could I get some guidance on it?
Thanks in advance.