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New 316 (diskless) and upgrading to 6.2 before I start

bdl99
Aspirant

New 316 (diskless) and upgrading to 6.2 before I start

Just purchased a 316 to replace an original Readynas, I also have a Readynas Pro Pioneer edition too.

The diskless 316 box is labelled as having V6.1.6 firmware

Questions:
Should I upgrade to V6.2 before I start and if so do I need to install at least one disk to do that?
I have 2 x 6Tb disks to start with raid1 mirroring, will I be able to add two more disks later and switch to Raid6 or would that require a wipe?

Thanks in advance for any advice,
Brian
Message 1 of 18
RX
Luminary
Luminary

Re: New 316 (diskless) and upgrading to 6.2 before I start

You will need to initially setup your RN316 with at least one drive inserted. After it has been initially setup, then you may either do an automatic or manual update of the firmware to v6.2.0.

You may start with your 2x6TB disks and you may add drives later one-at-a-time with XRAID.

With XRAID, if ever you will be adding 2 more drives one-at-a-time, it will have an XRAID-RAID5 type config and of course that's single redundancy.

If you want dual-redundancy, here are the steps:

1. You have started with 2x6TB disks initially with XRAID. Just add another 1x6TB and let ther resync process complete. This will be an XRAID-RAID5 type config and of course it has single parity.
2. Once the resync process has completed, turn off XRAID. You will now be on FLEX-RAID.
3. Insert the another 1x6TB then select the option to Add Parity.
4. You could switch back to XRAID or remain at FLEX-RAID.
Message 2 of 18
bdl99
Aspirant

Re: New 316 (diskless) and upgrading to 6.2 before I start

Thank you! That is exactly what I needed to know.

In step 4, if I switch back to XRAID I'm assuming that if/when I added a 5th 6TB drive it would auto expand, giving me another 6TB of space with dual-redundancy.
Message 3 of 18
RX
Luminary
Luminary

Re: New 316 (diskless) and upgrading to 6.2 before I start

Yup! it should provide you with additional storage capacity.
Message 4 of 18
bdl99
Aspirant

Re: New 316 (diskless) and upgrading to 6.2 before I start

So I have the two drives in, is it normal for the syncing/rebuilding to take 12+hours for 2 new/blank disks?
Message 5 of 18
StephenB
Guru

Re: New 316 (diskless) and upgrading to 6.2 before I start

bdl99 wrote:
So I have the two drives in, is it normal for the syncing/rebuilding to take 12+hours for 2 new/blank disks?
On my pro-6 it usually takes about 10-12 hours to resync a 3 TB drive (using xraid/RAID-5).

Though you might think that syncing/building an empty volume should be faster than a full one, that is not the case. RAID is between the physical storage and the file system. So even if the file system is empty, it still requires rewriting every sector in the volume. And replacing a drive also requires reading every sector of the remaining drives, and writing every sector of the new one.
Message 6 of 18
bdl99
Aspirant

Re: New 316 (diskless) and upgrading to 6.2 before I start

StephenB wrote:
bdl99 wrote:
So I have the two drives in, is it normal for the syncing/rebuilding to take 12+hours for 2 new/blank disks?
On my pro-6 it usually takes about 10-12 hours to resync a 3 TB drive (using xraid/RAID-5).

Though you might think that syncing/building an empty volume should be faster than a full one, that is not the case. RAID is between the physical storage and the file system. So even if the file system is empty, it still requires rewriting every sector in the volume. And replacing a drive also requires reading every sector of the remaining drives, and writing every sector of the new one.


Thanks, makes sense when you think about it that way.
Message 7 of 18
rovingmedic
Tutor

Re: New 316 (diskless) and upgrading to 6.2 before I start

I have just started this process with my RN316. It took about 12 hours to build my X-Raid array consisting of 5 x 4TB WD F9YZ disks after upgrading to OS6.2. I then turned X-Raid off and added the 6th disk. I then selected the option to add parity. The RN316 is now busy rebuilding the array. What concerns me is that the unit is reporting that this will take 206 hours. Is this correct, or should I suspect this duration will drop once the unit gets up to speed?
Message 8 of 18
vandermerwe
Master

Re: New 316 (diskless) and upgrading to 6.2 before I start

When switching from Xraid to flexraid and then back again for the purposes of changing to dual redundancy, it is not necessary to wait for resyncs to complete between each switch from Xraid -flexraid and flexraid-Xraid. The resync can be allowed to complete at the final stage when back in Xraid.
206 hours is too long, but I'd wait for about 6 hours or so to see if this comes down. You don't have encryption do you?
If it doesn't come down, I'd check all the disks using vendor tools.
Message 9 of 18
StephenB
Guru

Re: New 316 (diskless) and upgrading to 6.2 before I start

It almost always completes much faster than the estimate, but probably will take longer than the original 12 hours. All the data is being shifted around to create space for the "Q" parity blocks, which are being computed and written. If you look at the pictures for raid-5 and raid-6 here you will get some sense of the work involved: http://en.wikipedia.org/wiki/Standard_RAID_levels

It is a low-priority background process, so if the NAS is doing other stuff it will take longer than if it is otherwise idle.

Leave it overnight at least before you panic.
Message 10 of 18
rovingmedic
Tutor

Re: New 316 (diskless) and upgrading to 6.2 before I start

Thanks for the feedback.

I waited for the initial X-Raid Raid 5 build to complete before switching to Flex-Raid and adding the new disk. I then started the rebuild and switched back to X-Raid. The unit has continued the rebuild overnight. It has been churning away for 12 hours and has completed 5.89% of the rebuild. It is still reporting that the process will take more than 200 hours. I'm not doing anything else with the unit at the moment and will wait until the rebuild is finished before adding data.
Message 11 of 18
rovingmedic
Tutor

Re: New 316 (diskless) and upgrading to 6.2 before I start

Another question: Is it safe to shut the unit down before the rebuild is finished? I need to rearrange some power cables.
Message 12 of 18
vandermerwe
Master

Re: New 316 (diskless) and upgrading to 6.2 before I start

Well it should just continue the resync when you boot up again.
That resync time is to long. I have a 316 with five 4tb drives in Xraid with dual redundancy, a resync takes <24 hours.
When you power down I would also test all the disks using vendor tools. I do this with all new ( and used) disks before use in the nas.
Message 13 of 18
jsdeprey
Aspirant

Re: New 316 (diskless) and upgrading to 6.2 before I start

Hello, I also just bought a 316 and 4 x 4TB WD Reds.
I also wanted to know if I should start on 6.2 or go on a later 6.1 release.
I do not want any issues and wondering if I can get any recommendations from people already running 6.2.
Message 14 of 18
mdgm-ntgr
NETGEAR Employee Retired

Re: New 316 (diskless) and upgrading to 6.2 before I start

What will you be using your 316 for?
Message 15 of 18
rovingmedic
Tutor

Re: New 316 (diskless) and upgrading to 6.2 before I start

From what I've learned so far, here is my 2c worth of advice:
- upgrading to 6.2 at the start is recommended (a number of issues with 6.1 have been addressed and additional functionality added, see release notes)
- downgrading from 6.2 to 6.1 is not possible after upgrading to 6.2
- enable SSH once the initial installation is complete (this will enable problem solving if something goes wrong later)
- If you decide to install addon apps, DO NOT uninstall any addon apps as this could disable the GUI / web admin (this bug is also present in 6.1, can be fixed using SSH or Remote Access)

Good luck with getting your new NAS set up.
Message 16 of 18
rovingmedic
Tutor

Re: New 316 (diskless) and upgrading to 6.2 before I start

Okay, my RN316 has just been repaired by Tech Support after the GUI crash due to an App uninstall and corrupted volume during migration from RAID5 to RAID6. I have just learned how to get the unit set up in RAID6 from the start. This is way more efficient than trying to do an expansion.

1. Start with a factory default boot and all drive bays populated. All data will be erased.
2. Login to the admin GUI and complete the initial setup wizard.
3. Go to the Volume tab, click on the X-RAID button to put the unit in Flex-RAID mode
4. Click on the Setting gear next to the blue volume circle and then on the Destroy tab in the popup window.
5. Select all drives and click on the create volume button
6. Select RAID6 from the drop-down list in the popup window that opens, and click OK
7. You can choose to leave the unit in Flex-RAID or switch back to X-RAID now.

At the end of this process, my unit reported that it would take 34 hours to build a RAID 6 array consisting of six 4TB disks. Much faster than my earlier attempt that took 14 hours to build a 5 disk RAID5 array and then reported that it would take over 200 hours to expand this to a 6 disk RAID6 array.

Thanks again to the Netgear Tech Support team for their help in getting my RN up and running again.
Message 17 of 18
NetworkedinPA
Aspirant

Re: New 316 (diskless) and upgrading to 6.2 before I start

rovingmedic wrote:
Okay, my RN316 has just been repaired by Tech Support after the GUI crash due to an App uninstall and corrupted volume during migration from RAID5 to RAID6. I have just learned how to get the unit set up in RAID6 from the start. This is way more efficient than trying to do an expansion.

1. Start with a factory default boot and all drive bays populated. All data will be erased.
2. Login to the admin GUI and complete the initial setup wizard.
3. Go to the Volume tab, click on the X-RAID button to put the unit in Flex-RAID mode
4. Click on the Setting gear next to the blue volume circle and then on the Destroy tab in the popup window.
5. Select all drives and click on the create volume button
6. Select RAID6 from the drop-down list in the popup window that opens, and click OK
7. You can choose to leave the unit in Flex-RAID or switch back to X-RAID now.

At the end of this process, my unit reported that it would take 34 hours to build a RAID 6 array consisting of six 4TB disks. Much faster than my earlier attempt that took 14 hours to build a 5 disk RAID5 array and then reported that it would take over 200 hours to expand this to a 6 disk RAID6 array.

Thanks again to the Netgear Tech Support team for their help in getting my RN up and running again.


^^This^^ needs to be a sticky!

Just followed it, worked perfectly! (Minor differences like 'ok' was really 'Create' in 6.2.2 but very easy to follow)

THANKS FOR POSTING THIS PROCEDURE!!!
Message 18 of 18
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