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Forum Discussion
Can I populate a ReadyNAS Ultra 4 with 10 TB HDDs?
RNDU4000 - ReadyNAS Ultra 4, 4 x 3TB WD Reds, firmware 4.2.31. OK, so I’m looking into the possibility of replacing 4 x 3TB WD Reds in my ReadyNAS RNDU4000 Ultra 4 with 4 x 10TB WD Reds. I’d back...
rmgalley wrote:
Does that mean there is a restriction in either hardware or software that would mean 10 TB HDDs either wouldn’t work at all, or I wouldn’t be able to achieve the full 27.2 TiB as indicated by the Raid Calculator?
There are two expansion limits -
- you cannot expand a volume over 16 TiB
- you cannot grow a volume more than 8 TB from it's original size
You will therefore need to do a fresh factory install if you stick with 4.2.31. It should create the full 30 TB (27.2 TiB) volume, since all disks are of equal size, so no vertical expansion is needed. I say should because I don't recall any posts here from anyone using this disk size with OS 4.2.x. You wouldn't be able to expand after that (because of the first constraint).
Since you are going to need a fresh install anyway, you'd be better off switching to OS-6. That would give you the ability to expand later on, plus OS-6 features. It also gives you SMBv3 support, which is becoming more and more important as Microsoft is deprecating the SMBv1 protocol used in OS 4.2.x.
If you do switch to OS-6, you should install the currently shipping version (6.9.1 at the moment, with 6.9.2 in beta).
rmgalley wrote:
I am currently using Logitech Media Server, but I do not see a version specifically for OS6.
There is an app for it here: http://apps.readynas.com/pages/?page_id=9 Though I haven't used it. Hopefully someone who does will confirm if it installs with the current firmware.
Hi StephenB,
Thank you for the very helpful advice. I will make changes in a step wise fashion.
I’ll initially purchase two 10 TB WD Reds to verify there are no problems. This arrangement will provide slightly more capacity than I currently have. Once data is backed up I’ll stay with 4.2.31 to begin with. If all is OK I’ll start afresh and try upgrading to OS-6 for its more up-to-date security features.
If I’m starting with unpopulated, unformatted disks do I access the NAS in the usual way via RAIDar/Frontview ‘Setup’ - then ‘System/Update/Local’ and navigate to the 6.9.1 image then ‘Upload and verify’? Are there any other steps which need to be taken prior to attempting this?
I’ll try out the version of Logitech Media Server NT from the Get Apps page.
Another thought occurs to me. If OS-6 is more resource intensive would doubling the RAM in the Ultra 4 to 2 GB be possible or of benefit?
I finances allow I’d eventually like to change to a RN424. If the Ultra 4 had been upgraded to OS-6 would I be able to simply transfer, in order, the HDDs from the Ultra 4 to the RN424 or would backing up and starting from scratch again be necessary?
Thanking you in anticipation.
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