Re: RN204 How much storage should be free 4 x 1tb Raidar Report using raid 5
How much free space should this show using raid5 and 4 x 1tb drives. System shows healthy. See bottom three screen captures
Raidar diagnostics reports this below. Does this report indicate only 3 of the 4 volumes are functional?
Successfully completed diagnostics
System
Disk 2 has 1 Reallocated Sectors
Disk 2 has 1 Reallocation Events
Disk 3 has 2 Command Timeouts
Logs
2023-10-22 12:31:17: md/raid:md127: raid level 5 active with 3 out of 4 devices, algorithm 2
Accepted Solutions
All Replies
Test started but not completed by time finished composing this. May have to restart that in the morning.
Think my first use of the RN204 was on 21st 10 2023
It immediately informed it had one degraded volume on disk 4 that was noticed, bear in mind my not ever using any nas previously.
Alerts were setup that day but recall deleting bunch of stuff as got so many over period of days, below is a timeline of events still hold alert emails for.
Please bear in mind when you read them they are in the correct order they arrived in. The time never set correctly at first and had to alter the time zone, thought at first it was something to do with lack of any summer time setting, eventually switched out where it connected the time update location.
Sat 21/10/23 18.47 If you receive this message, the email alert notification is working properly.
20.54 Volume Vertig0 is resynced.
Sun 22/10/23 10.42 Volume Vertig0 is Degraded.
12.32 Volume Vertig0 is Degraded.
12.32 Resyncing started for Volume Vertig0.
15.25 Volume Vertig0 is resynced.
15.25 Volume Vertig0 health changed from Degraded to Redundant.
14.26 Disk in channel 4 (Internal) changed state from RESYNC to ONLINE.
15.25 Disk in channel 4 (Internal) changed state from RESYNC to ONLINE.
The next day after having disc 4 drop out both days another identical disc was ordered. It then seemingly has behaved itself since then and is in disc 3 slot now (noticed it’s ATA errors so know which disc is which by that) Why later after online reading thought maybe a drive bay fault which is said to be common hence bay switch for the disc. The ATA errors have not increased and disc 3 put into slot 4 has still got zero errors for that, as too the other discs. [nb the disc which was ordered was put into my Qnap temporarily to get that setup after the lack of apps on here and the cumbersome uploads to it. RAIDar makes doing that so much quicker, glad managed to find that and install it on 31/10/23.
Not been using it the last week or so for 2 reasons, getting the Qnap setup and to see if powering this RN204 off and unplugging it makes it lose the raid array or not over extended periods of time. Do not wish to waste money powering a device not being used.
On arrival all discs were clean formatted and no raid setup.
Do not understand why all the volumes show the green block indicating that they are “Spare” and not just all blue blocks as per the “Raid” square.
RAIDar was downloaded and installed 31/10/23.
Disc 1
Disc 2
Disc 3
This originally was disc 4 in the array when it arrived.
The ATA error count has not increased at all.
Disc 4
This originally was disc 3 in the array when it arrived.
Meant to include these screens from RAIDar too. Note the lower one reads exactly the same today as yesterday despite doing a rescan.
OK, The indicator square is now understood after reading again.
Green [as it is] - showing it is healthy,
Yellow for - The volume is degraded and finally
Red for - The volume is bad or faulty.
Disc test was run today and after a couple of hours went out to get stuff from shops, returned, still running, but in honesty no idea if it was even running so, attempted to start it again, got this
Much later noticed test had finished, so have following screens. Nothing really indicates anything not working correctly though as far as able see
"
What shows (from the NAS shell) /proc/mdstat ?
root@RNxxxx:~# cat /proc/mdstat"
My lack of knowledge using nas shell means could not get that to work despite setting it to SSH following netgear guides [since switched off, only open moments].
Does the antivirus still work? Always appears to be updating.
Completed a boot test on the discs, it shows this from logs, [personal info removed]
@ctxuk wrote:
"The tiny little green square does mimick the power LED. A spare disk would be all green, not blue. "
Apologies for my ignorance but do not understand what you mean here. That would indicate all 4 discs are "Spare", which not understanding that meaning of "Spare". With the array at first only showing 3 drives for awhile, and the 4th Degraded thought it indicated 4th drive was "Spare" as it not linked to the raid array. Also why thought all 4 should now show blue square to indicate the raid array is working.
Sorry, no. Your NAS does claim to have four active RAID members, thus the complete disk is shown in blue.
A spare disk would be black (not green as I wrote before), the label showing the green square is equally wrong - it should be dark grey or black instead.
The little green filed does mimic the HDD LED (e.g. green for powered and workable).
What I wanted you to do is login using ssh as root (same password you set for admin) to your NAS, and run the command as shown, and copy-paste the output to the thread. Needless to say, ssh must be enabled to allow this.
cat /proc/mdstat
"2023-10-22 12:31:17: md/raid:md127: raid level 5 active with 3 out of 4 devices, algorithm 2"
That interested myself also but as the tests come back fine, with the expected amount of space on the raid array being correct indicated by others had to think it was some form of glitch.
"Waste of time to me for an obsolete NAS."
Not sure how to interpret that comment in truth. If upset by my responses can only apologise if my ignorance or lack of knowledge irritates yourself, have to learn as go along.
Cannot un-buy the device and unable to afford new or better than this currently. Disappointed myself to a degree with my purchase but if it can do the basic function of storage for the things indicated by myself then it will still be usable.
Do not understand why disc tests run out of boot and with device loaded show no error and all 4 HDD's to be healthy if there is indeed a fault.
SSH.
The other poor purchase made by myself has its manufacturer state the will give no assistance to anyone using SSH on their device. Consequently read that it makes the device insecure to network attacks (making all attached devices vulnerable too???) so uneasy about either using it, or providing reading which are not understood by self to others (if that offends, would say sorry but without intending to be rude, security overrides the rest, that am certain you can understand).
As stated, found out after attempts made to use SSH in manner you indicated, though possibly incorrectly may have failed due to these below
Do know that no IPv6 gets allocated to this PC as have attempted to use it in the past, even if had tried these.
@ctxuk wrote:"2023-10-22 12:31:17: md/raid:md127: raid level 5 active with 3 out of 4 devices, algorithm 2"
That interested myself also but as the tests come back fine, with the expected amount of space on the raid array being correct indicated by others had to think it was some form of glitch.
It would be prudent to download the log zip from the logs page of the web ui. Then copy/paste mdstat.log in a reply on this thread.
@ctxuk wrote:
SSH.
The other poor purchase made by myself has its manufacturer state the will give no assistance to anyone using SSH on their device.
As stated, found out after attempts made to use SSH in manner you indicated, though possibly incorrectly may have failed due to these below
Port forwarding in your router isn't needed (and IMO isn't a good idea, as it potentially allows your NAS to be hacked over the internet).
All that is need on the NAS is to go to system->services->settings, select SSH, and then enter this:
No need to download an SSH key.
Then from a Windows PC, you can enter ssh root@nas-ip-address from the windows command line (using the real NAS IPv4 address of course). The first time you do this you will get a prompt to allow the connection (don't recall the preicse text, but I think it includes a mention of the fingerprint).
Once you get past that, you'll get a black text box on the PC, which will prompt you for the password. Enter the NAS admin password at that point.
You do need to be careful with ssh, especially if you aren't familiar with the linux command line. However, IMO it is still good to enable it, as it does make it easier for folks here to help you when troubleshooting. At that point we can give you specific commands to run.
