NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.
Forum Discussion
ReadyNAS Pro 6 has become unstable and regularly hangs
My ReadyNAS Pro has started hanging after running fine for many years. Currently running firmware 6.9.2 but have had the same problem with the last few versions released. I've tried disablin...
As I have the exact same issue since some months, but my /dev/md0 shows more than 20% I wonder if that is giving a hint and possible action to try?
Filesystem Size Used Avail Use% Mounted on
/dev/md0 4.0G 1.3G 2.4G 36% /
What’s special about the md0 mount? I’m not familiar with it’s relevance and the 20% ?
That ist what I was hoping to get out of my question. StephenB mentioned in his initial reply to your problem description it should be about 20% and I wonder if my 36% might be a possible cause for the hangs happening about every two weeks.
budda1 wrote:
What’s special about the md0 mount? I’m not familiar with it’s relevance and the 20% ?
budda1 wrote:
What’s special about the md0 mount? I’m not familiar with it’s relevance and the 20% ?The md0 mount is the OS partitiion (holding linux, the readynas application, and the logs). It's pretty small (4 GB on OS-6 systems), though it's enough for its intended purpose.
But when it gets too full, the operating system can hang, and even fail to boot. If it's completely full, then the system can't store configuration changes, and that can result in an inconsistent or corrupted configuration.
Usually the OS partition is only about 20% full. 36% shouldn't be a problem in itself - around 60% would be moving into the danger zone. But if it's higher than usual because you've been using SSH to modify the system (installing packages, etc), then perhaps those mods are creating the instability.
Since my last check in early March 2018 the md0 partition (for me) has crept up to 23%
=== df -h === Filesystem Size Used Avail Use% Mounted on udev 10M 4.0K 10M 1% /dev /dev/md0 4.0G 824M 2.9G 23% /
What I have noticed is that disabling all 4 installed apps, specifically Plex, seems to have kept my ReadyNAS running stable for 8 days at least. I'm seeing if it will stay up for a good 3-4 weeks without any apps on first then introduce one app at a time.
budda1 wrote:
Since my last check in early March 2018 the md0 partition (for me) has crept up to 23%
Not a concern, it will float up and down some.
budda1 wrote:
I'm seeing if it will stay up for a good 3-4 weeks without any apps on first then introduce one app at a time.
Are you using the stock 1 GB of RAM in the Pro? Current OS-6 systems have at least 2 GB. One thing you might consider is adding more memory. But I wouldn't introduce another variable into the mix just yet. Gradually enabling apps sounds like the right plan.
NETGEAR Academy
Boost your skills with the Netgear Academy - Get trained, certified and stay ahead with the latest Netgear technology!
Join Us!
