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Forum Discussion
ssands
Mar 15, 2016Guide
Ultra 2 - RAID 0 volume not expanding
Hi all, Apologies in advance if this is covered elsewhere, but I did not find it. I have an Ultra 2 with Frontview 4.2.26 (I think that's correct, it's not in front of me now, but it is the l...
- Mar 16, 2016
Hi ssands,
Welcome to the community!
If the RAID volume is set to 0 and you started with just single (1) drive and planning to add a new one, there's no other way but to back up the data and reset the system with both drives installed.
Kind regards,
BrianL
NETGEAR Community Team
BrianL2
Mar 16, 2016NETGEAR Employee Retired
Hi ssands,
Welcome to the community!
If the RAID volume is set to 0 and you started with just single (1) drive and planning to add a new one, there's no other way but to back up the data and reset the system with both drives installed.
Kind regards,
BrianL
NETGEAR Community Team
ssands
Mar 16, 2016Guide
Thanks for the response.
Probably too much of a hassle to backup somewhere (I use the cloud backup for emergencies). So, I guess I'll just go with two distinct volumes.
Was this somewhere in the manuals and I missed it, or it is just a limitation learned by hard knocks?
Thanks again.
Stu
- StephenBMar 16, 2016Guru - Experienced User
Page 38 of the user manual ( http://documentation.netgear.com/ultra/enu/202-10654-01/usermanual_1.pdf ) implies that you can add a disk to an existing RAID-0 volume.
Though I don't recommend doing that, because the resulting RAID-0 volume is quite fragile. If either disk fails, you lose everything.
- cpu8088Mar 16, 2016Virtuoso
StephenB wrote:Though I don't recommend doing that, because the resulting RAID-0 volume is quite fragile. If either disk fails, you lose everything.
not if u have external backup or another nas as backup.
been using raid 0 many years with backup. at most the volume collapse and u destroy the faulty volume, swap the bad drive with good one and then recreate the volume then restore from backup.
- StephenBMar 16, 2016Guru - Experienced User
cpu8088 wrote:
not if u have external backup or another nas as backup.
Of course you should have backups anyway.
If someone is aware of the consequences of disk failure, and is ok with them, then it's perfectly fine to use spanning raid-0. Many users aren't.
I've used the mode myself (because I had shares that were bigger than the max disk size my duo v1 would hold). But as disks have gotten larger, I've found that it is no longer necessary, so I have switched to jbod.
- ssandsMar 16, 2016Guide
StephenB wrote:Page 38 of the user manual ( http://documentation.netgear.com/ultra/enu/202-10654-01/usermanual_1.pdf ) implies that you can add a disk to an existing RAID-0 volume.
Though I don't recommend doing that, because the resulting RAID-0 volume is quite fragile. If either disk fails, you lose everything.
Yes, that is the page I've poured over, and can't understand why I can't add a disc and expand my logical volume. Quite perplexing. It seems that the manual is in fact, stating that I can do that.
I do understand that raid 0 offers nothing in the way of resiliance and am ok with that. It holds my media, which is backed up to the cloud, and is recoverable, even it if takes a bit of time to get it all back.
So, I am confused by the earlier comment that you can't do what I want to do when you start with a single disc as Raid 0 when the manual does seem to imply otherwise.
It sure seems like a feature of the software.
- mdgm-ntgrMar 17, 2016NETGEAR Employee Retired
I believe only RAID-5 and RAID-6 are supported for Flex-RAID expansion on the Ultra. The screenshot in the manual shows it for RAID-5.
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