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Forum Discussion
Duo V2 one disk expansion
Hi all , I have a duo V2 with 1 disk 1Tb installed in X-RAID2. I wanted to expand and bought a brand new 3Tb disk Added the new 3Tb disk to the NAS , sync started and anded after 5 hours successfu...
So I had two disks, both JBOD and separate volumes both 3TB. My 2nd Volume Disk 2 died and I replaced it with a 4TB. However, the JBOD detected it ONLY as a 3TB and created a new 2.7TB volume instead of the 3.7TB.
It did NOT auto-expand from the original settings. I have the latest software and firmware.
This software is very pathetic.
We recommend sticking with the default X-RAID2. With non-redundant volumes if a disk fails and you have no backup you may lose all your data.
You could try backign up your data, doing a factory default (wipes all data, settings, everything), choose JBOD and then restore your data from backup.
The RAID is not useful because you put in 6TB and get 3TB of usable space. I don't want to pay 2x as much for the same amount of space for a backup drive. I don't need a backup of my backup.
The whole purpose of JBOD rather than a raid stripe is that if one drive failes you lose only 1 volume, not both.
JBOD is the best configuration because one drive failed but I could use my 2nd drive for months before replacing the first.
I know I can do a factory reset but then that just means that Netgear software is defective. The whole point of having a JBOD is that you shouldn't have to do a factory reset.
As as an engineer I get asked a lot for the best companies for hardware and I am so far not impressed with the limitations of Netgear at all.
The Netgear manual website says the drive will "expand" automatically so if it doesn't does this mean the NAS hardware is defective?
lforbes wrote:
... The whole point of having a JBOD is that you shouldn't have to do a factory reset.
But you didn't choose to use JBOD, and you certainly knew you were set up for XRAID.
The Netgear manual website says the drive will "expand" automatically so if it doesn't does this mean the NAS hardware is defective?
The hardware is fine. Your link is clearly for Flex-Raid, and you were using XRAID- which is explained quite clearly on page 19 of the software manual (http://www.readynas.com/download/documentation/UM/RAIDiator5-3_Home_SW_en_Nov711.pdf):
With X-RAID2, you can start out with one hard disk, add a second disk for data protection, then add more disks for additional capacity, and X-RAID2 accommodates the new disks automatically.
If you are saying that you should have been able to convert xraid to jbod before you inserted the second drive, then I'd agree. Netgear has provided a non-destructive control to switch between flexraid and xraid on the newer OS-6 NAS, but chose not to retrofit the older Raidiator 4.x and 5.x firmware with that particular feature.
But here you simply added the disk without taking the time to read the manual. So I'm thinking this is really on you, not Netgear.
That said, it would be convenient to be able to downgrade raid-1 back to jbod. It is a corner case (you couldn't downgrade a 3 disk RAID-5 array to a 2 disk RAID-1 array, and most other disk-adds simply can't be undone w/o data loss). However, the corner case would still be worth implementing in a future version of OS 6.
I don't think you understood my post? I am a senior computer engineer who manages corporate servers at work so I had no problems setting up JBOD within the first 10min using RAIDr. I didn't use ANY type of raid at all as I did not want redundancy and I still don't.
I had a JBOD with two 3TB drives on two volumes and then one drive died so I plugged a 4TB drive in and it detected it but the NAS incorrectly created it as a 3TB volume when it should have created it as a 4TB volume.
The link to the document was for the section that says JBOD are created to the volume size which in actuality is completely incorrect.
It it appears that the NAS is incapable of detecting a different size in an existing JBOD configuration unless a factory reset is done.
I will probably have to switch to Qnap or Synology because they actually have the ability to manage the hardware properly.
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