PR2100 Dying HDD

My Cloud OS 5 Personal & Network Attached Storage My Cloud
1

Hi ;

I have a PR2100 running 2 x WD60EFAX (6TB) (RAID 1)

Disk 1 goes out every couple of weeks (starts blinking red) - so i decided to replace it

1- What are the steps to replace a faulty HDD without losing the data ? couldn’t find anything in the manual
2- i received a new 6 TB HDD but its WD60EFPX and not WD60EFAX (guessing WD60EFPX is the newer version) - is it OK to mix EFPX and EFAX together in the same PR2100 or they have to be exactly identical

Thank you
Hadi

2

Simply remove the bad drive and insert the new one. Once the EX2 detects the new drive, it will start to rebuild the mirror. While your files are still accessible during the rebuild, access will be a bit slower. How long it takes to rebuild depends on how much stuff you have.

As far as the drives, the original one appears to be an WD Red (SMR), the replacement is a WD Red Plus (CMR). CMR is far better for NAS’s but they should be OK together. If you’re not familiar with SMR vs CMR, try a web search so you understand better.

However, assuming the old drives are about the same age, I would proactively replace the other one with another WD Red Plus (or Pro) as soon as practical. Once the rebuild has completed, you would simply swap out the other drive.

3

@HadiTannous, there is a specific subforum for the PR2100 where you may get more help from those who have a PR series device. This subforum (My Cloud) generally discusses a different device, the single bay/single drive second generation My Cloud.

OS5 My Cloud Pro Series
http://wdstagingsplit.staged-by-discourse.com/c/os5/my-cloud-pro-series/256

WD Support has several knowledge base articles that may be relevant to your question(s) if you haven’t seen the already.
Steps to Replace Internal Drives in a 2 and 4 Bay My Cloud
Steps to Upgrade the Drives on a My Cloud to Using RAID Expansion
My Cloud RAID Online User Guide and Solutions
RAID Volume Damaged on My Cloud