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    Recent Best Controversial
    • RE: VM migration time

      @Greg_E At this time we do not have the financial resources to purchase new boards.

      posted in Management
      cairotiC
      cairoti
    • RE: VM migration time

      @nikade @olivierlambert I created two Linux VMs and ran the below bandwidth and disk tests:

      Testing using Dell Storage Network and local server volumes:

      # iperf -c IPServer -r -t 600 -i 60
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size:  128 KByte (default)
------------------------------------------------------------
------------------------------------------------------------
Client connecting to IPServer, TCP port 5001
TCP window size: 16.0 KByte (default)
------------------------------------------------------------
[  1] local IPClient port 54762 connected with IPServer port 5001 (icwnd/mss/irtt=14/1448/1321)
[ ID] Interval       Transfer     Bandwidth
[  1] 0.0000-60.0000 sec  51.6 GBytes  7.39 Gbits/sec
[  1] 60.0000-120.0000 sec  50.9 GBytes  7.28 Gbits/sec
[  1] 120.0000-180.0000 sec  51.2 GBytes  7.33 Gbits/sec
[  1] 180.0000-240.0000 sec  49.1 GBytes  7.03 Gbits/sec
[  1] 240.0000-300.0000 sec  50.8 GBytes  7.27 Gbits/sec
[  1] 300.0000-360.0000 sec  48.8 GBytes  6.99 Gbits/sec
[  1] 360.0000-420.0000 sec  51.7 GBytes  7.41 Gbits/sec
[  1] 420.0000-480.0000 sec  49.2 GBytes  7.05 Gbits/sec
[  1] 480.0000-540.0000 sec  50.1 GBytes  7.17 Gbits/sec
[  1] 540.0000-600.0000 sec  50.0 GBytes  7.16 Gbits/sec
[  1] 0.0000-600.0027 sec   503 GBytes  7.21 Gbits/sec
[  2] local IPClient port 5001 connected with IPServer port 33924
[ ID] Interval       Transfer     Bandwidth
[  2] 0.0000-60.0000 sec  50.8 GBytes  7.28 Gbits/sec
[  2] 60.0000-120.0000 sec  51.4 GBytes  7.36 Gbits/sec
[  2] 120.0000-180.0000 sec  52.4 GBytes  7.51 Gbits/sec
[  2] 180.0000-240.0000 sec  50.3 GBytes  7.21 Gbits/sec
[  2] 240.0000-300.0000 sec  50.4 GBytes  7.22 Gbits/sec
[  2] 300.0000-360.0000 sec  51.0 GBytes  7.30 Gbits/sec
[  2] 360.0000-420.0000 sec  50.6 GBytes  7.24 Gbits/sec
[  2] 420.0000-480.0000 sec  50.4 GBytes  7.22 Gbits/sec
[  2] 480.0000-540.0000 sec  50.1 GBytes  7.18 Gbits/sec
[  2] 540.0000-600.0000 sec  50.9 GBytes  7.29 Gbits/sec
[  2] 0.0000-600.0125 sec   508 GBytes  7.28 Gbits/sec

      Test using Dell Storage volumes and networking:

      # iperf -c IPServer -r -t 600 -i 60
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size:  128 KByte (default)
------------------------------------------------------------
------------------------------------------------------------
Client connecting to IPServer, TCP port 5001
TCP window size: 16.0 KByte (default)
------------------------------------------------------------
[  1] local IPClient port 50006 connected with IPServer port 5001 (icwnd/mss/irtt=14/1448/4104)
[ ID] Interval       Transfer     Bandwidth
[  1] 0.0000-60.0000 sec  33.7 GBytes  4.82 Gbits/sec
[  1] 60.0000-120.0000 sec  33.3 GBytes  4.77 Gbits/sec
[  1] 120.0000-180.0000 sec  33.4 GBytes  4.78 Gbits/sec
[  1] 180.0000-240.0000 sec  36.1 GBytes  5.16 Gbits/sec
[  1] 240.0000-300.0000 sec  36.7 GBytes  5.25 Gbits/sec
[  1] 300.0000-360.0000 sec  32.8 GBytes  4.69 Gbits/sec
[  1] 360.0000-420.0000 sec  33.4 GBytes  4.78 Gbits/sec
[  1] 420.0000-480.0000 sec  34.5 GBytes  4.93 Gbits/sec
[  1] 480.0000-540.0000 sec  35.3 GBytes  5.05 Gbits/sec
[  1] 540.0000-600.0000 sec  34.3 GBytes  4.91 Gbits/sec
[  1] 0.0000-600.0239 sec   343 GBytes  4.92 Gbits/sec
[  2] local IPClient port 5001 connected with IPServer port 52714
[ ID] Interval       Transfer     Bandwidth
[  2] 0.0000-60.0000 sec  35.7 GBytes  5.12 Gbits/sec
[  2] 60.0000-120.0000 sec  31.6 GBytes  4.53 Gbits/sec
[  2] 120.0000-180.0000 sec  30.3 GBytes  4.34 Gbits/sec
[  2] 180.0000-240.0000 sec  35.1 GBytes  5.02 Gbits/sec
[  2] 240.0000-300.0000 sec  37.9 GBytes  5.42 Gbits/sec
[  2] 300.0000-360.0000 sec  37.5 GBytes  5.37 Gbits/sec
[  2] 360.0000-420.0000 sec  37.5 GBytes  5.37 Gbits/sec
[  2] 420.0000-480.0000 sec  37.1 GBytes  5.31 Gbits/sec
[  2] 480.0000-540.0000 sec  33.9 GBytes  4.86 Gbits/sec
[  2] 540.0000-600.0000 sec  35.0 GBytes  5.00 Gbits/sec
[  2] 0.0000-600.0036 sec   352 GBytes  5.03 Gbits/sec

      Dell storage disk testing for each VM:

      dd if=/dev/zero of=/tmp/teste1.img bs=1G count=1 oflag=dsync
1+0 records in
1+0 records out
1073741824 bytes (1,1 GB, 1,0 GiB) copied, 15,3566 s, 69,9 MB/s

      dd if=/dev/zero of=/tmp/teste1.img bs=1G count=1 oflag=dsync
1+0 records in
1+0 records out
1073741824 bytes (1,1 GB, 1,0 GiB) copied, 19,0043 s, 56,5 MB/s

      Server local disk test for each VM:

      dd if=/dev/zero of=/tmp/teste1.img bs=1G count=1 oflag=dsync
1+0 records in
1+0 records out
1073741824 bytes (1,1 GB, 1,0 GiB) copied, 6,88148 s, 156 MB/s

      dd if=/dev/zero of=/tmp/teste1.img bs=1G count=1 oflag=dsync
1+0 records in
1+0 records out
1073741824 bytes (1,1 GB, 1,0 GiB) copied, 5,83594 s, 184 MB/s
      posted in Management
      cairotiC
      cairoti
    • RE: VM migration time

      @nikade Broadcom NetXtreme II BCM57810 10 Gigabit Ethernet

      posted in Management
      cairotiC
      cairoti
    • RE: VM migration time

      I will try to list more information.

      posted in Management
      cairotiC
      cairoti
    • RE: VM migration time

      @olivierlambert See the settings:

      • Network for pool:

      Network_pool.png

      • Network for host 1 of Pool:

      host1.png

      • Network for host 2 of Pool:

      host2.png

      • Switch Dell: MTU 9216

      • MTU on all Storage SCSI interfaces:

      interfaceStorage.png

      posted in Management
      cairotiC
      cairoti
    • RE: VM migration time

      @nikade Yes, the VM is using shared storage. My storage network is 10G with the MTU of 9000. I don't use multipathing for interfaces. I'm thinking there's something wrong with the settings.

      posted in Management
      cairotiC
      cairoti
    • RE: VM migration time

      @olivierlambert The interface used for direct communication with storage is eth5.

      fig1.png

      fig2.png

      posted in Management
      cairotiC
      cairoti
    • VM migration time

      Hi. I created a Linux VM for testing. It has a 10 GB disk. The MTU of the communication network between the hosts in the pool and the Dell storage is 9000.

      When I try to migrate this VM between storage volumes, using XO, the time is more than 6 minutes. Is this time normal for the size of the VM?

      Could I check some settings to try to improve this time?

      I saw the links below, but I still have questions:

      https://xcp-ng.org/forum/topic/6639/mtu-change
      https://xcp-ng.org/forum/topic/9193/help-with-iscsi-in-xcp-ng?_=1734355541195

      posted in Management
      cairotiC
      cairoti
    • RE: XO Lite: building an embedded UI in XCP-ng

      @olivierlambert Your company is fantastic! Since I started testing XCP-NG and XO, I've seen a lot of new things. Congratulations again.

      posted in XO Lite
      cairotiC
      cairoti
    • RE: XO Lite: building an embedded UI in XCP-ng

      @olivierlambert Thanks for sharing this tool. I'll test it!

      When reading the documentation, I had a question. If my internet link becomes unavailable, I will not be able to get XO Lite as I will not be able to download the code from Vates' servers to fully run the application. In the final version of XO Lite, do you intend to make the application completely available so that it can be run on the server side?

      posted in XO Lite
      cairotiC
      cairoti
    • Questions about backup features

      I saw the video about Xen Orchestra's backup and restore features. From this video I learned a lot.

      https://xcp-ng.org/docs/backup.html#xen-orchestra

      Simple Backup and Disaster Recovery (DR) perform full backups. The difference is that Simple Backup saves to a remote drive like NFS and Disaster Recovery (DR) saves to a local SR so that data is recovered faster. Delta Backup and Continuos Replication (CR) initially perform a full backup and then incremental backups (Delta).

      Now the questions follow:

      1. In Delta Backup and Continuos Replication (CR), if the “Force full backup” option is selected in Schedule, will the results be identical to those of Simple Backup and Disaster Recovery (DR)?

      2. In Continuos Replication (CR), although the first backup is full and the rest are incremental backups of the Delta type, why when deleting the first backup can I later restore other backups without problems?

      posted in Backup
      cairotiC
      cairoti
    • RE: How to enable dvd drive on Xo?

      @AtaxyaNetwork Thanks for your guidance. I can create a lightweight Debian VM with an NFS share for the ISOs.

      But even so it is strange that the drive is not known by the XO. Maybe other people can comment on this later.

      posted in Xen Orchestra
      cairotiC
      cairoti
    • How to enable dvd drive on Xo?

      I want to use the dvd drive for installing GNU/Debian 11. But the drive on the XO Community interface is not shown. In XCP-ng Center the drive is displayed without any problems.

      I'm forgetting something ?

      Versions: xo-server 5.103.1 and xo-web 5.104.0

      drivedvd.png

      posted in Xen Orchestra
      cairotiC
      cairoti