Forum Discussion

Luminary

Nov 03, 2015

Solved

Readynas Pro 6 X-RAID 2 Dual Redundancy Proactive Drive Swap

Hi all, I have a Pro 6 running 4.2.27 with 4x1TB Hitachi drives (approved on HCL) and am planning to proactively replace 2 of them so from a mechanical / wear perspective the drives in the volume...

Adding Disks

Installation & Upgrade

JennC
Nov 04, 2015
Hello steveoelliott,

I see. It should still be one at a time, same procedure with expansion. Replace one, let it resync and once done, replace the next disk and so on and so forth.

This might help: How do I replace a disk in my ReadyNAS Ultra, Ultra Plus, NVX or Pro series storage system?

Regards,

steveoelliott

Luminary

Nov 04, 2015

Hi,

I will be using identical drives for replacement so there should not be any expansion... Just a re-sync.

I presume this should be faster...

Thanks...

JennC

NETGEAR Employee Retired

Nov 04, 2015

Hello steveoelliott,

I see. It should still be one at a time, same procedure with expansion. Replace one, let it resync and once done, replace the next disk and so on and so forth.

This might help: How do I replace a disk in my ReadyNAS Ultra, Ultra Plus, NVX or Pro series storage system?

Regards,

steveoelliott
Luminary
Nov 17, 2015
All - Just so I have an idea of the time involved, how long ball park would an X-RAID 2 rebuild take on a pro 6 after I swap one of the disks? I will do this one at a time.

I have 4x1TB in an X-RAID2 dual redundancy and am looking to proactively swap two of them so mechanically the disks are different from a wear perspective. I have exactly the same models since I kept some back when the installation was initially completed.
- StephenB
  Guru - Experienced User
  Nov 17, 2015
  steveoelliott wrote:
  
  All - Just so I have an idea of the time involved, how long ball park would an X-RAID 2 rebuild take on a pro 6 after I swap one of the disks? I will do this one at a time.
  
  I'm thinking at most 3 hours per 1 TB disk. I've seen a log posted some time ago that showed about 7 hours to resync 6x2TB RAID-6. That's 3x the disk I/O that is needed for 4x1TB RAID-6.
  - steveoelliott
    Luminary
    Nov 17, 2015
    OK Thanks... Some folks on here talk about hundreds of hours but I suspect something is going wrong then. I will verify all SMART data before starting and have a secondary unit acting as a backup.