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[Xen-devel] VBD extents
| To: | xen-devel@xxxxxxxxxxxxxxxxxxxxx |
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| Subject: | [Xen-devel] VBD extents |
| From: | Eric Tessler <maiden1134@xxxxxxxxx> |
| Date: | Tue, 18 Jan 2005 18:24:10 -0800 (PST) |
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Can anyone tell me what exactly the VBD extents are used for in the XEN back-end block device driver? It almost looks like each virtual disk is made up of multiple physical drives if I read the code correctly (for each VBD grow message received by blkback, it opens a device and retreives various info such as its size).
Thanks,
Eric
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