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Type: Posts; User: cloudtech

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    I search this from Google, people says "dd only...

    I search this from Google, people says "dd only does sequential I/O". The iozone results are sequential read and write too.

    Also, the disk performance test tool in DSS V6 console use "dd" command...
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    The write performance using dd and iozone

    I ran the "dd" command and "iozone" tool respectively on a CentOS VM. The write speed with "dd" is only 132MB/S, but "iozone" can get 430MB/s to 530MB/s. I am wondering why there's so much big...
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    I had made the adjustments, the write performance...

    I had made the adjustments, the write performance is a little better. But the overall speed is still in 100MB level. Could you tell a range of the write speed base on my hardware? Like 300MB to...
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    Write performance

    Hello,

    I have two Open-E SANs for OnApp Cloud and they are using Multipath with Failover. From a VM, I use dd command to test the write performance, the speed is between 70MB/s to 140MB/s. I...
  5. Sorry for late reply. I haven't had a chance to...

    Sorry for late reply. I haven't had a chance to test it since I could not apply the patch to existing build b5794 or upgrade to the latest build . Gr-R suggest me to re-install the DSS software, but...
  6. Thanks. I received the file. I am going to test...

    Thanks. I received the file. I am going to test it.
  7. 6.0up85.8601.5794 64bit

    6.0up85.8601.5794 64bit
  8. Thanks. I had submitted the ticket. I am using...

    Thanks. I had submitted the ticket. I am using the DSS V6.
  9. How to avoid stopping the failover when adding a new failover task?

    Currently, I have two SAN servers in cluster with failover with multipath setup. In the initial setup, I only have one failover task running. When the failover service is running, I can't add another...
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    I am having this problem too. The web panel was...

    I am having this problem too. The web panel was working fine(but slow) before. Just now, I want to create a new volume. Usually, it takes a few seconds to create the volume, but this time it hang...
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    The volumes will be used by OnApp Cloud. The OS...

    The volumes will be used by OnApp Cloud. The OS may be varies.
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    Best Practise for the Volume Size

    I have a Unit with 11TB in RAID 6. What factors to consider when creating the Volume? Should I create a large Volume(11TB) or some small Volumes(2TB)? Thanks for any advice.

    I will use the...
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    It's my network setup problem. My hypervisor...

    It's my network setup problem. My hypervisor server is using 192.168.2.4, but my SAN virtual IP was 192.168.100.100. I switched the virtual IP with the Storage access IP and now the failover is...
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    Please ignore my last reply. I may found the...

    Please ignore my last reply. I may found the problem.
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    The failover status shows the Communication via...

    The failover status shows the Communication via Storage link is OK. I am not sure how the gateway is handling the virtual IP. Do I need to do any special setup in the Switch(both SAN are connecting...
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    Sorry to bother you again. I have the following...

    Sorry to bother you again. I have the following setup, but I am not able to ping the virtual IP from both SAN servers. In the video, I see they can ping each other. Should I setup 192.168.100.254 as...
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    I just watched the video and found out the...

    I just watched the video and found out the answer. Thank you for your support.:D
  18. Replies
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    Thanks. I have Virtual IP on Client Storage...

    Thanks. I have Virtual IP on Client Storage Access network. Do you mean I need to use the Virtual IP on onapp cloud instead of the actual IP of the Storage Access network? I don't use CHAP...
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    If both SAN nodes are connecting to one switch,...

    If both SAN nodes are connecting to one switch, can open-e swap the Client storage Access link IP ?

    Eg:

    Primary node:
    Client Storage Access: 192.168.2.220

    Secondary node:
    Client Storage...
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    open-e failover for onapp cloud

    Hello,

    I have two SAN servers with volume replication with failover setup(active/passive). The failover status looks fine on both primary and secondary nodes. When I manually switch the primary...
  21. Hi Gr-R, I have re-installed the SAN servers,...

    Hi Gr-R,

    I have re-installed the SAN servers, now the failover is working fine. Thank you.
  22. I will send you the screenshot and logs when it's...

    I will send you the screenshot and logs when it's ready. Thanks. :)
  23. I disable the failover and re-enable it. Now the...

    I disable the failover and re-enable it. Now the status changed to starting failover service(it's over 10 mins). Also, there's an even in primary node shows the failover completed. The primary node...
  24. The nodes can ping each other on all networks. I...

    The nodes can ping each other on all networks. I have double checked the Virtual IP and Auxiliary connections on both servers, I don't see any problem.

    Primary node Network settings:
    Interface 1:...
  25. Yes, I am using VLAN to separate the 3 network I...

    Yes, I am using VLAN to separate the 3 network I have. Any problem? Thanks.
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