Date: Fri, 26 Feb 2016 19:15:57 +0100 From: =?UTF-8?Q?Roger_Pau_Monn=c3=a9?= <roger.pau@citrix.com> To: =?UTF-8?Q?Gustau_P=c3=a9rez?= <gustau.perez@gmail.com> Cc: FreeBSD XEN <freebsd-xen@freebsd.org> Subject: Re: Porting the block-iscsi hotplug script Message-ID: <56D0965D.1070400@citrix.com> In-Reply-To: <56D07392.60005@gmail.com> References: <553DEB97.5000300@entel.upc.edu> <5540A053.4080409@entel.upc.edu> <5540F3FC.80606@citrix.com> <5541FC8A.8080009@citrix.com> <5542365D.10403@entel.upc.edu> <55423ECD.6000404@citrix.com> <5556F21D.2050005@entel.upc.edu> <555EEFBA.5080902@citrix.com> <555EF542.3090002@citrix.com> <555F9B3F.1000600@entel.upc.edu> <55602512.1090702@citrix.com> <56C6FA2F.8040900@gmail.com> <56CAC8CB.8030107@gmail.com> <56CADEDA.4050007@citrix.com> <56CB0057.1060509@gmail.com> <56CB041E.1020009@citrix.com> <56CB2D90.5080809@gmail.com> <56CB34BA.6060809@citrix.com> <56CC24BD.6050609@gmail.com> <56CC32E5.5010101@citrix.com> <56CC7637.3080408@gmail.com> <56CF5668.6090605@citrix.com> <56D0091F.80408@gmail.com> <56D02863.7040100@citrix.com> <56D03D95.9090509@gmail.com> <56D04E5F.8070901@citrix.com> <56D07392.60005@gmail.com>
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(re-adding freebsd-xen) El 26/2/16 a les 16:47, Gustau Pérez ha escrit: > > > El 26/02/16 a les 14:08, Roger Pau Monné ha escrit: >> >> It shouldn't be too hard, as I said the code is already there. The only >> issue I foresee is that you will have to find somewhere to store the >> information about the disk you have locally-attached, so you can remove >> it when the guest is destroyed. > > I fear that keeping state externally could be dangerous if something > fails to destroy the association between a domain and the locally > attached storage when the guest finishes. > > In any case, I suppose there are no restrictions on which kind of > storage is used to track that information, right? I suppose easier to > read, easier to edit and common formats would be better, like json or > thing like, right? I'm not a maintainer of libxl myself, but my first suggestion would be to store this information inside of xenstore. There's already a "/libxl" directory used in order to stash some toolstack specific info, adding a new directory/hierarchy there to store the local attachments seems like the best option IMHO. Roger.
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