SR_BACKEND_FAILURE_73

[kim eng]

Hi,

Previously i got 2 xenserver which i had mounted and now i add a new xenserver and i want try mount it and it show this error message.

Internal error: Failure("Storage_access failed with: SR_BACKEND_FAILURE_73: [ ; NFS mount error [opterr=mount failed with return code 32]; ]")

I saw from forum but seem like dont have any solution for me.

guys, any solution for this?

[Tobias Kreidl]

That's generally due to the inability to get NFS access. Can you do a "showmount -e" from the XenServers to the NFS host and see the exports OK? Any firewall or other network issue that is interfering? Did any network configuration change meanwhile?
-=Tobias

[kim eng]

showmount -e 10.1.1.191
Export list for 10.1.1.191:
/Users
/USBDisk1
/Qweb
/Qusb
/Qrecordings
/Qmultimedia
/Qdownload
/Public
/Primary
/Network Recycle Bin 1
/Backup

here is my showmount and so far i didn't change any firewall or configuration

[Tobias Kreidl]

Can you do a manual (temporary) mount to your XenServer? Any issues with NFS daemons?
When did that SR work OK last?

[kim eng]

because i already got another 2 previously machine which mounted and that 2 machine is working fine just only this new machine is not working only.

i had check firewall and the connection all ok

[Tobias Kreidl]

Di you include it in the exports list from your NFS server?
-=Tobias

[kim eng]

df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda1 4.0G 1.9G 2.0G 49% /
none 380M 0 380M 0% /dev/shm
/opt/xensource/packages/iso/XenCenter.iso
51M 51M 0 100% /var/xen/xc-install
//10.1.1.191/Qweb 1.8T 994G 838G 55% /var/run/sr-mount/f6ddb8bd-3741-02ae-b0b4-7002cd2ee616
//10.1.1.191/Qweb 1.8T 994G 838G 55% /var/run/sr-mount/a0842525-f1a8-0953-e218-05b2641dd2b0
//10.1.1.191/Qweb 1.8T 994G 838G 55% /var/run/sr-mount/2dca3850-5ebb-af59-5388-772da9a66404

this is my disk free

[Helmut Igl]

Hello

we have similar issue on XenServer 7 after we installed these hotfixes:

XS70E019 / 020 / 021

We run Atlantis ILIO Software on a single XenServer . SR is mounted via NFS.
It was working without any problems until we installed the hotfixes.
 

 

[Ghanshyam Patel]

This is an issue of both xenserver and qnap:

1st of all QNAP:

The NFS Host Access seems to be limited to allow ONE (the first) IP address entry after updating from 4.3.5.0760(20181114) to 4.3.6.0867(20190228).

The edit shared folder permission -> NFS Host Access allows multiple entries, but when trying to access only the first entry is allowed, the rest are not allowed. 

 

cat /etc/exports

shows the same issue

only the first IP address has received an entry, the remaining addresses have been ignored

 

A temporary fix is to put a wild card in the entry like * or 192.168.0.* (not secure though)

 

2nd xenserver:

showmount -e x.x.x.x

was showing ok but 

 

xe sr-probe type=nfs device-config:server=x.x.x.x device-config:serverpath=/xen

was giving:
Error code: SR_BACKEND_FAILURE_73
Error parameters: , NFS mount error [opterr=mount failed with return code 32],

 

after adding wildcard to qnap 1st entry in NFS Host Access:

xe sr-probe type=nfs device-config:server=x.x.x.x device-config:serverpath=/xen

Now I can create New SRs on this NFS (which wasn't possible till I added wildcard) and all of xen servers in the pool are able to see it

but none of the servers in the pool will talk to the existing NFS SR.

There seems to be no way to fix this!!!