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Forum Discussion
ReadyNAS Balance and ESXI hosts
Model ReadyNAS 4312 (did not have that in Model selection, when creating this discussin). Firmware 6.7.5 *My "setup" ESXi 6.0 EMC SAN for Production Servers (10GB Base-T) Readynas 4312 is use...
Just an update, since I really dont like when people dont update a discussion.
On firmeware 6.8.0, and have had a Balance and defrag without issues. (so it seems Netgear has fixed the issue IMO)
Retired_Member wrote:
I am assuming the balance may be saturating the wrong network with iScsi traffic, but I wanted to see if anyone else has any issues when running a balance?
The BTRFS balance won't saturate any network interface, but it is stressful for the volume, so it may increase read and write latency, which maybe leads to issues. You said you lose access to ESXi hosts and that the RR4312 hosts datastore(s) and SMB shares. I'm not sure why you would lose access to the ESXi hosts while still reaching VMs, I would understand why some VMs would hang, but hosts? Are you running a nested environment? I don't understand why a balance on a storage device would cut you off from the hosts while you can still reach some VMs running on it.
Can you download the logs of the RR4312 and post here an extract of btrfs.log?
I am guessing at this too, since the ReadyNAS is the only new thing added to my network...when I had my support ticket with VMware the only thing I did to bring back my ESXi hosts....was turn off the ReadyNAS. A few days later I did a "Balance" again.....with same resutls...In vCenter the ESXi hosts stated "not responding"...I could not log into the hosts of each ESXi server. I again shut off the ReadyNAS and all came back online.
Your volume doesn't need balancing. It's well balanced looking at the output you've provided.
Well I did 2 balancing within a week, the second was really only a test to see if the "issue" would happen again, and it did.
I first did a balance by suggestion from Netgear support.
I will do some testing and disable NIC's on my next balance, I will post updates.
Metadata allocation is a bit high. Are you using bit rot protection, compression, etc?
You should disable the quotas on the volume (if you don't have any quotas on the shares).
If you're running databases, maybe you need a faster volume, like RAID10.
That said, I still don't see the connection between the balance and your ESXi hosts.
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