Look at /opt/xensource/sm/nfs.py
The nfs mount options are hard coded in the soft_mount function. You can change the options in there.
From: xen-users-bounces@xxxxxxxxxxxxx [mailto:xen-users-bounces@xxxxxxxxxxxxx]
On Behalf Of Kelvin Vanderlip
Sent: Friday, July 05, 2013 6:17 PM
To: xen-users@xxxxxxxxxxxxx
Subject: [Xen-users] Xen SR NFS mount options = soft
Dear Xen community,
We are running XenServer 6.02 and 6.1, using NFS mounts from a Nexenta ZFS file system as our Storage Repositories.
Occasionally, the Nexenta system freezes for up to 50 to 2 minutes seconds (no idea on that yet), which should not hurt the Xen guests as its just a temporary freeze of an NFS share.
However, the XenServer hypervisor mounts its NFS storage repositories with the option "soft", so the SRs just disconnect. Major mayhem ensues as the virtual guests put their root file systems into read-only mode.
I have not figured out how to NFS mount a Xen Storage Repository on a Xenserver with the "hard" option.
Here is what "nfsstat -m" shows for our hypervisor's NFS mount options (note the 'soft' item on each SR)
[root@new-ucsc1b1 ~]# nfsstat -m
/var/run/sr-mount/92bf4ab7-8ce9-ed6a-a04a-e7b3c0e3348b from 10.10.15.247:/volumes/dev0/XEN_6.1_SR/92bf4ab7-8ce9-ed6a-a04a-e7b3c0e3348b
Flags: rw,sync,relatime,vers=3,rsize=131072,wsize=131072,namlen=255,acregmin=0,acregmax=0,acdirmin=0,acdirmax=0,soft,noac,proto=tcp,port=65535,timeo=133,retrans=0,sec=sys,mountport=65535,local_lock=none,addr=10.10.15.247
/var/run/sr-mount/95144379-5caf-cc1b-1861-39825b4bbe7b from 10.10.8.137:/backup
Flags: rw,sync,relatime,vers=3,rsize=131072,wsize=131072,namlen=255,acregmin=0,acregmax=0,acdirmin=0,acdirmax=0,soft,noac,proto=tcp,port=65535,timeo=133,retrans=0,sec=sys,mountport=65535,local_lock=none,addr=10.10.8.137
/var/run/sr-mount/6bcb8d28-99bd-a803-f6b0-5c43a1cdbb96 from 10.10.15.247:/volumes/dev0/XEN_6.1_SR_hard/6bcb8d28-99bd-a803-f6b0-5c43a1cdbb96
Flags: rw,sync,relatime,vers=3,rsize=131072,wsize=131072,namlen=255,acregmin=0,acregmax=0,acdirmin=0,acdirmax=0,soft,noac,proto=tcp,port=65535,timeo=133,retrans=0,sec=sys,mountport=65535,local_lock=none,addr=10.10.15.247
Does anyone know how to NFS mount a Xen Storage Repository 'hard'?
Kelvin Vanderlip
I.T. Systems Administration
Sunrider Torrance
"The biggest single problem in communication is the illusion that it has taken place"
CONFIDENTIALITY NOTICE: This message is intended only for the use of the individual or entity to which it is addressed, and may contain information that is privileged, confidential, and exempt from disclosure under applicable law. If you have received this email in error, please immediately notify the sender by return email and delete this email and any attachments from your system.
|
