Oracle VM 3.1.1 vm guests autostart when dom0 reboots
Hi
Is it possible to make vm guests start when the OVM Server reboots? By default when the OVM Server restarts the vm guests stay offline, this is version 3.1.1
Thank you
you can add a line to the /etc/inittab of the OVM server
we use :
8:3:once:/usr/sbin/xm create /OVS/Repositories/0004fb000003000028bea91df1332359/VirtualMachines/0004fb0000060000292bfdf47a61bee1/vm.cfg
9:3:once:/usr/sbin/xm create /OVS/Repositories/0004fb000003000028bea91df1332359/VirtualMachines/0004fb00000600007ad64af712addb0f/vm.cfg
to start two VM's after a reboot/kernel panic of the XEN server.
8 and 9 are the order.
3 is the init
the bold is the subfolder for the VM
works fine!
installed:
libxml2.x86_64
2.6.26-2.1.2.8.0.2
installed
libxml2-python.x86_64
2.6.26-2.1.2.8.0.2
installed
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https://blogs.oracle.com/virtualization/entry/configuring_ntp_services_for_oracle
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IP Address:
Oracle VM Server: 172.16.8.100
VM Guest: 172.16.8.102
Debug on VM Guest:
# ntpdate -d 172.16.8.100
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Looking for host 172.16.8.100 and service ntp
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transmit(172.16.8.100)
receive(172.16.8.100)
transmit(172.16.8.100)
receive(172.16.8.100)
transmit(172.16.8.100)
receive(172.16.8.100)
transmit(172.16.8.100)
receive(172.16.8.100)
transmit(172.16.8.100)
server 172.16.8.100, port 123
stratum 3, precision -20, leap 00, trust 000
refid [172.16.8.100], delay 0.02585, dispersion 0.00037
transmitted 4, in filter 4
reference time: d31a8fd0.c06d7d27 Mon, Mar 26 2012 13:48:48.751
originate timestamp: d31a9168.774cbbe0 Mon, Mar 26 2012 13:55:36.466
transmit timestamp: d31a911b.138bdec5 Mon, Mar 26 2012 13:54:19.076
filter delay: 0.02725 0.02614 0.02585 0.02626
0.00000 0.00000 0.00000 0.00000
filter offset: 77.38879 77.38864 77.38926 77.38931
0.000000 0.000000 0.000000 0.000000
delay 0.02585, dispersion 0.00037
offset 77.389261
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High jitter to the server but actualyl they are on the single box
# ntpq -p
remote refid st t when poll reach delay offset jitter
==============================================================================
172.16.8.100 172.16.90.1 3 u 47 64 3 0.265 2704.42 2488.59
LOCAL(0) .LOCL. 10 l 44 64 3 0.000 0.000 0.004
Thanks.
Rgds,
JackyHi Avi,
Thanks for your reply. Due to we do not have Oracle VM Manager, I did configure the VM guest to point the internal NTP server (172.16.90.1) which is mapped by Oracle VM server, but the high jitter is still existed while the guest can ntpq the NTP server. Thanks.
Oracle VM Server
#ntpstat
synchronised to NTP server (172.16.90.1) at stratum 3
time correct to within 56 ms
polling server every 1024 s
#ntpq -p
remote refid st t when poll reach delay offset jitter
==============================================================================
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172.16.190.1 .INIT. 16 u - 1024 0 0.000 0.000 0.000
LOCAL(0) .LOCL. 10 l 46 64 377 0.000 0.000 0.001
VM Guest Oracle Linux
# ntpq -p
remote refid st t when poll reach delay offset jitter
==============================================================================
172.16.90.1 10.1.22.230 2 u 61 64 3 0.432 252.261 3169.53
172.16.190.1 .INIT. 16 u - 64 0 0.000 0.000 0.000
LOCAL(0) .LOCL. 10 l 34 64 7 0.000 0.000 0.008
# ntpstat
synchronised to local net at stratum 11
time correct to within 448 ms
polling server every 64 s
# ntpdate -d 172.16.90.1
26 Mar 15:47:15 ntpdate[27478]: ntpdate [email protected] Tue Dec 8 20:30:45 UTC 2009 (1)
Looking for host 172.16.90.1 and service ntp
host found : 172.16.90.1
transmit(172.16.90.1)
receive(172.16.90.1)
transmit(172.16.90.1)
receive(172.16.90.1)
transmit(172.16.90.1)
receive(172.16.90.1)
transmit(172.16.90.1)
receive(172.16.90.1)
transmit(172.16.90.1)
server 172.16.90.1, port 123
stratum 2, precision -20, leap 00, trust 000
refid [172.16.90.1], delay 0.02594, dispersion 0.00052
transmitted 4, in filter 4
reference time: d31aa515.a637fc1e Mon, Mar 26 2012 15:19:33.649
originate timestamp: d31aabaf.06173915 Mon, Mar 26 2012 15:47:43.023
transmit timestamp: d31aaba2.61117b52 Mon, Mar 26 2012 15:47:30.379
filter delay: 0.02631 0.02605 0.02594 0.02594
0.00000 0.00000 0.00000 0.00000
filter offset: 12.64269 12.64337 12.64397 12.64443
0.000000 0.000000 0.000000 0.000000
delay 0.02594, dispersion 0.00052
offset 12.643971
26 Mar 15:47:30 ntpdate[27478]: step time server 172.16.90.1 offset 12.643971 sec
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I have issue with disk performance during VM cloning.
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Edited by: user12925046 on Dec 25, 2012 9:48 PM
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I'm trying to load some data into a staging database via a CSV file using sqlldr, and am running into an issue where it doesn't like the date format I'm using.
Here is my input data:
2012-01-09 16:28:12 -05:00Here is the entry in the .ctl file:
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Set up the control and data files....
tubby@Tubbz:~/test$ cat >> WTPart.csv <<EOF
2012-01-09 16:28:12 -05:00
EOF
tubby@Tubbz:~/test$
tubby@Tubbz:~/test$ cat >> load.ctl <<EOF
LOAD DATA
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FIELDS TERMINATED BY '|' OPTIONALLY ENCLOSED BY '"'
TRAILING NULLCOLS
created TIMESTAMP WITH TIME ZONE 'yyyy-mm-dd HH24:MI:SS TZR'
EOF
tubby@Tubbz:~/test$
tubby@Tubbz:~/test$ /usr/lib/oracle/xe/app/oracle/product/10.2.0/server/bin/sqlldr tubby/pswd@xe control=load.ctl
SQL*Loader: Release 10.2.0.1.0 - Production on Tue Jan 10 10:21:28 2012
Copyright (c) 1982, 2005, Oracle. All rights reserved.
Commit point reached - logical record count 1
tubby@Tubbz:~/test$
{code}
Query the result from the database
{code}
ME_XE?select * from wtpart;
CREATED
09-JAN-12 04.28.12.000000 PM -05:00
1 row selected.
Elapsed: 00:00:00.01
ME_XE?
ME_XE?select * from v$version;
BANNER
Oracle Database 10g Express Edition Release 10.2.0.1.0 - Product
PL/SQL Release 10.2.0.1.0 - Production
CORE 10.2.0.1.0 Production
TNS for Linux: Version 10.2.0.1.0 - Production
NLSRTL Version 10.2.0.1.0 - Production
5 rows selected.
Elapsed: 00:00:00.01
ME_XE?
{code}
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