check /var/lib/xen/suspend_evtchn_*_lock.d
Make sure there are different lock files for each domain.
And before starting, make sure there are no stray lock files.
Try this litmus test first. (do both commands simultaneously, in two
different
terminals)
terminal 1: xm save -c TestVM1 TestVM1.chkpt
terminal 2: xm save -c TestVM2 TestVM2.chkpt
If this fails, then your problem is something else.
Check the log files /var/log/xen/xend.log for errors.
Most important of all, you are not doing any disk replication!
So, when the VM recovers on backup, it will be running with an
older version of the disk and will possibly crash
it should be tap2:remus:backuphost:backupport|aio:....
shriram
On Wed, Jul 27, 2011 at 11:55 PM, Rajendar K <k.rajendar@gmail.com> wrote:
> Hi,
> Thanks for your kind reply.
> I have installed xen 4.0.2 in RHEL5 and tried remus. With a single
> remus command
> running for a single virtual machine, it works fine but when i tried for
> two virtual machine,
> the steps which i have tried is as follows,
>
> i have run remus command on two terminals
>
> (i) *remus --no-net 1 192.168.36.233
> *(ii) *remus --no-net 2 192.168.36.233*
>
>
> Terminal 1 :
> The following error i got where i run command
>
> *remus --no-net 1 192.168.36.233*
>
> SUSPEND shinfo 00076122
> delta 1ms, dom0 100%, target 0%, sent 0Mb/s, dirtied 2457Mb/s 75 pages
> 86: sent 72, skipped 0, delta 1ms, dom0 0%, target 0%, sent 2359Mb/s,
> dirtied 2359Mb/s 72 pages
> Total pages sent= 41424 (1.19x)
> (of which 0 were fixups)
> All memory is saved
> PROF: resumed at 1311824828.014423
> PROF: flushed memory at 1311824828.015603
> PROF: suspending at 1311824828.212492
> SUSPEND shinfo 00076122
> delta 1ms, dom0 100%, target 0%, sent 0Mb/s, dirtied 2359Mb/s 72 pages
> 87: sent 107, skipped 0, delta 1ms, dom0 0%, target 0%, sent 3506Mb/s,
> dirtied 3506Mb/s 107 pages
> Total pages sent= 41531 (1.19x)
> (of which 0 were fixups)
> All memory is saved
> PROF: resumed at 1311824828.215125
> PROF: flushed memory at 1311824828.216482
> PROF: suspending at 1311824828.426094
> domain 1 not shut down
> ERROR Internal error: Suspend request failed
> ERROR Internal error: Domain appears not to have suspended
> Save exit rc=1
>
>
> Terminal 2 :
> The following error i got where i run command
>
> *remus --no-net 2 192.168.36.233*
>
>
> Had 0 unexplained entries in p2m table
> 1: sent 32377, skipped 391, delta 14193ms, dom0 11%, target 0%, sent
> 74Mb/s, dirtied 1Mb/s 517 pages
> 2: sent 517, skipped 0, delta 219ms, dom0 11%, target 0%, sent 77Mb/s,
> dirtied 0Mb/s 0 pages
> 3: sent 0, skipped 0, Start last iteration
> PROF: suspending at 1311824828.327395
> domain 2 not shut down
> ERROR Internal error: Suspend request failed
> ERROR Internal error: Domain appears not to have suspended
> Save exit rc=1
>
>
> --------------------------------------
>
> On the host machine where i run remus command , i can see the two VMs in
> suspended state
> [root@globuscompute ~]# xm list
> Name ID Mem VCPUs State
> Time(s)
> Domain-0 0 1681 2 r-----
> 75.1
> TestVM1 1 128 1 ---s--
> 5.2
> TestVM2 2 128 1 ---s--
> 5.1
>
>
> And also the destination machine i can see one VM in "b" state
> [root@globushead ~]# xm list
> Name ID Mem VCPUs State
> Time(s)
> Domain-0 0 1684 2 r-----
> 215.4
> TestVM1 1 128 1 -b----
> 0.5
>
>
> Kindly help me in this situation..
>
> I hereby specify the configuration file which i have used for your
> reference..
>
> VM1:
>
>
kernel="/opt/euca-debian-5.0-i386/xen-kernel/vmlinuz-2.6.24-19-xen"
> memory=128
>
ramdisk="/opt/euca-debian-5.0-i386/xen-kernel/initrd.img-2.6.24-19-xen"
> disk >
[''tap2:tapdisk:aio:/opt/euca-debian-5.0-i386/debian.5-0.x86.img,xvda1,w'']
> name="TestVM1"
> root="/dev/xvda1 ro"
> vif=[''bridge=eth0'',]
>
>
> VM 2:
>
>
kernel="/opt/euca-debian-5.0-i386/xen-kernel/vmlinuz-2.6.24-19-xen"
> memory=128
>
ramdisk="/opt/euca-debian-5.0-i386/xen-kernel/initrd.img-2.6.24-19-xen"
> disk >
[''tap2:tapdisk:aio:/opt/euca-debian-5.0-i386/debian.5-0.x86_1.img,xvda2,w'']
> name="TestVM2"
> root="/dev/xvda2 ro"
> vif=[''bridge=eth0'',]
>
>
>
> On Wed, Jul 27, 2011 at 6:56 PM, Shriram Rajagopalan
<rshriram@cs.ubc.ca>wrote:
>
>>
>> Yes you certainly can. What kind of problem are you facing?
>> shriram
>>
>> On Wed, Jul 27, 2011 at 5:07 AM, Rajendar K
<k.rajendar@gmail.com> wrote:
>>
>>>
>>> Hi Sriram,
>>>
>>> Can we run REMUS for more than one VM
simultaneously ?
>>> I have tried it and found that it is not fruitful..
>>> Kindly help me for a solution.
>>>
>>>
>>> --
>>> Raj,
>>> CDAC.
>>>
>>
>>
>
>
> --
> Raj,
> CDAC.
>
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