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ReadyNAS RN42200 hangs completely up during backup to RN31400
Hi everyone, I am trying now since already a year to do backups from my newer RN42200 (two 12TB Disks in RAID 1) to my older RN31400 (4 Disks, RAID 5). Both are on OS 6.10.3. I tried Backups via SMB, NFS, RSYNC, RSYNC over SSH....... The backup always crashed. It was also not possible to cancel the Backup-Job. After a longer time it always goes back from "cancelling" to "running". Only way is then to push the Power-Off button on the box.
Sometimes single files or Directories arrived at the RN31400. Finally it led to a file with ZERO bytes. E.g. a Backup from one of my Debian-Servers to the boxes is absolutely no problem. Also RSync works.
What I found today during another (unsuccessful) backup-test:
- Backup Job didnt work.
- Tried to cancel the job but after a while it went back to "running". BUT
- The two disks went to sleeping mode.
- Later on I connected via Terminal and a "ls -la" found also a file in the root "job_008" with permissions "d?????????", Group: "?", User "?", Size "?" and the message "ls: cannot access 'job_008': Host is down'.
Does somebody have an idea here?
Greetings, Worli
Hi Stephen, I think the MTU size (at 9000) was the root cause! After changing it on both boxes back to 1500 and a reboot everything worked. I successfully tried via NFS, SMB and Rsync.
But first I had to delete the existing backup-jobs and had to create new ones. The old ones were not working! Whyever...
Wow, this is really absolutely unexpected. Strange, because from all other devices on the network it was always working! No matter which OS, Windows as well as Linux.
However, many thanks Stephen for your help and especially also for your patience which I really appreciate. May be I get ometimes to opportunity to help you too!!!:smileyvery-happy:
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Are the NAS on the same network?
I run daily backups - one for each share. These are all set up for rsync.
Can you provide more information on the backup settings you are using? One thing I suggest is using the IP address for the remote NAS - not the host name.
Thank you, yes they are both on same net. Static-IP: 192.168.1.8 and 192.168.1.20. Initially I had also an both of them the second NIC active in VLAN 192.168.50.0. But I deactivated them in the meantime.
I did a lot of tries. Also tried the Hostname and/or IP-Address. No change. I always deleted the faulty backup jobs after the tries. But to take the simple one (SMB):
- Created on both boxes new Share.
- I just copied a few files for testing into the source. (Via Webinterface)
- Only SMB active.
- No Snapshots, nothing else.
- User rights: Everbody: Read/Write.
- Source is Local. Target is Remote.
- No Schedule. Only one time run.
- Via Hostname: I searched for the other box via Admin/Password and it was found: NAS3-Worli.local. So chech of connection was always successful.
- Via IP: I entered it manually.
- Only when I tried to see the Shares on the Abkup-Box I didnt see one of the about 20 Shares.
Sometimes the Backup Job created several empty directories on the Back-Box and started in one of the Dirs with a file but it had always ZERO byte and stopped.
May be somethnig with the file permissions? (I did also Reset to Default on the Share.)
Kind regards, Worli
Personally I use Rsync. I run the backups on the destination NAS, and as noted earlier I use one backup job per share.
The settings I use are:
I use these on several NAS (running daily backups), and they run very reliably.
Can you tell us more about your network setup?
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