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[Xen-API] tap-ctl commands

  • To: "xen-api@xxxxxxxxxxxxx" <xen-api@xxxxxxxxxxxxx>
  • From: Dave Scott <Dave.Scott@xxxxxxxxxxxxx>
  • Date: Fri, 25 May 2012 12:46:49 +0100
  • Accept-language: en-US
  • Acceptlanguage: en-US
  • Delivery-date: Fri, 25 May 2012 11:46:59 +0000
  • List-id: User and development list for XCP and XAPI <xen-api.lists.xen.org>
  • Thread-index: Ac06bBGB9dMJnsIcRumKCQfjbKQRUA==
  • Thread-topic: tap-ctl commands

(I think I sent this to the wrong list address, apologies if this comes through 


I'm building a proof-of-concept NFS/vhd driver-domain backend using the new 
xapi <-> storage interface. I'm about to hook this up to tapdisk to get .vhd 
support however I can't seem to find a manpage for "tap-ctl".

Could someone remind me what tap-ctl runes are needed to:

* get a block device suitable for blkback (i.e. "attach" a VDI in xapi-speak)
* connect a .vhd to a blktap block device via tapdisk /or unpause a paused 
tapdisk (i.e. "activate" a VDI)
* disconnect a .vhd from a block device /or pause and flush buffers (i.e. 
* remove the block device altogether (i.e. "detach")


PS for anyone who's interested the code is on github:


(the storage interface code is automatically generated)

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