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[Xen-devel] How many block device in domU supports?

  • To: xen devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: MaoXiaoyun <tinnycloud@xxxxxxxxxxx>
  • Date: Sat, 14 Jan 2012 00:58:01 +0800
  • Delivery-date: Fri, 13 Jan 2012 16:58:28 +0000
  • Importance: Normal
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>

       I've been thought this for a while, I want to build 1000 linux containeres in a HVM,
and each container owns 1 block device, so there will 1000 tapdev and 1000 tapdisk
       My question is
       1. How many devices domU support?
       2. How many tapdev device blktap2 support?
       3, Would it be a performance issue in this case?
       4. Basically, I want each container's data is write to different VHD file, since
           it is convenient to transfer data. For ex. I can use this VHD to start a new VM.
       Any comments or any other better idea?
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