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watsonm's avatar
watsonm
Aspirant
Nov 14, 2016
Solved

Upgrading Netgear ReadyNAS Disks

I have a ReadyNAS DUO V2 a with 2 x  2TB disks purchased in 2013 which are getting close to capacity. The right hand disk is a system copy of the left hand disk.   I just wanted to check as to the di...
Installation & Upgrade
readynas DUO V2 disk upgrade
  • watsonm's avatar
    watsonm
    Nov 15, 2016

    Thanks Stephen, 

     

    Ok so there is no concept of a master and a slave disk.  If I remove the left hand 2Tb disk the right hand 2Tb will be copied across when the new 4Tb disk  is installed.  For some reason I had assumed the left hand disk was a master. 

     

     I understand I will still only have 2Tb available until the second 4Tb disk is installed and copied to (some days later!)

     

    (The removed 2Tb disk will be my backup)

     

    Thanks again for you comments and help... Mike

watsonm's avatar
watsonm
Aspirant
Nov 15, 2016

Jennc ,

 

Many thanks.  I was intending to go 4Tb and the WD RED WD40EFRX as per the HCL.  I can see some sites still stock it.

 

I have a 2 disk  X-RAID2 setup so based on the article you linked to it doesn't seem to matter what order I swap out the disks.

So my workflow described above seems OK.

 

Thanks for your input. (and thank you too StephenB)

 

Mike

StephenB's avatar
StephenB
Guru - Experienced User
Nov 15, 2016
watsonm wrote:

So my workflow described above seems OK.

 

Your workflow isn't quite right.

 

You need to 

(a) hot-replace the first drive with the NAS running, and wait for resync.

(b) hot-replace the second drive with the NAS running, and wait for resync.

 

Normally there will be a reboot half-way through step b.  It doesn't matter which drive is "first" and which is "second".  It is wise to make a backup first.

  • watsonm's avatar
    watsonm
    Aspirant
    Nov 15, 2016

    Thanks Stephen, 

     

    Ok so there is no concept of a master and a slave disk.  If I remove the left hand 2Tb disk the right hand 2Tb will be copied across when the new 4Tb disk  is installed.  For some reason I had assumed the left hand disk was a master. 

     

     I understand I will still only have 2Tb available until the second 4Tb disk is installed and copied to (some days later!)

     

    (The removed 2Tb disk will be my backup)

     

    Thanks again for you comments and help... Mike

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