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SR_BACKEND_FAILURE_73


kim eng

Question

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?

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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

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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

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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!!!

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