Shared virtual media in a composed system
Shared virtual media in a composed system, including generating, in a switch of a fabric of the composed system, a virtual media device; associating media data with the virtual media device; and sending, by the switch, via the fabric, to one or more compute nodes of the composed system, the media data.
1. A method of shared virtual media in a composed system, the method comprising:
generating, in a switch of a fabric of the composed system, a virtual media device;
associating media data with the virtual media device, wherein the media data comprises data for completing instantiation of two or more compute nodes; and
providing access, by the switch, via the virtual media device, to the two or more compute nodes of the composed system, the media data to complete instantiation of the two or more compute nodes.
2. The method of claim 1 , wherein the fabric of the composed system comprises a Peripheral Component Interconnect Express (PCIe) fabric, and the switch comprises a PCIe switch, and wherein the media data comprises a disk image of an operating system.
3. The method of claim 1 , further comprising:
maintaining, by the switch, a cache comprising the media data; and
loading, from the cache, the media data,
wherein providing access to the media data comprises retrieving the media data from the cache and sending the retrieved media data to the two or more compute nodes of the composed system.
4. The method of claim 1 , further comprising loading the media data from local storage of the switch.
5. The method of claim 1 , further comprising receiving the media data from a management server.
6. The method of claim 1 , wherein providing access to the media data comprises sending, to the two or more compute nodes, the media data substantially in parallel.
7. The method of claim 1 , wherein providing access to the media data to the two or more compute nodes is independent of a management network of the composed system.
8. An apparatus for shared virtual media in a composed system, the apparatus comprising a computer processor, a computer memory operatively coupled to the computer processor, the computer memory having disposed within it computer program instructions that, when executed by the computer processor, cause the apparatus to perform operations comprising:
generating, in a switch of a fabric of the composed system, a virtual media device;
associating media data with the virtual media device, wherein the media data comprises data for completing instantiation of two or more compute nodes; and
providing access, by the switch, via the virtual media device, to the two or more compute nodes of the composed system, the media data to complete instantiation of the two or more compute nodes.
9. The apparatus of claim 8 , wherein the fabric of the composed system comprises a Peripheral Component Interconnect Express (PCIe) fabric, and the switch comprises a PCIe switch.
10. The apparatus of claim 8 , wherein the operations further comprise:
maintaining, by the switch, a cache comprising the media data; and
loading, from the cache, the media data, and
wherein providing access to the media data comprises retrieving the media data from the cache and sending the retrieved media data to the two or more compute nodes of the composed system.
11. The apparatus of claim 8 , wherein the operations further comprise loading the media data from local storage of the switch.
12. The apparatus of claim 8 , wherein the operations further comprise receiving the media data from a management server.
13. The apparatus of claim 8 , wherein providing access to the media data comprises sending, to the two or more compute nodes, the media data substantially in parallel.
14. The apparatus of claim 8 , wherein providing access to the media data to the two or more compute nodes is independent of a management network of the composed system.
15. A computer program product for shared virtual media in a composed system, comprising a non-volatile computer readable medium and computer program instructions stored therein, the computer program instructions being configured to, when executed, cause a computer to perform operations comprising:
generating, in a switch of a fabric of the composed system, a virtual media device;
associating media data with the virtual media device, wherein the media data comprises data for completing instantiation of two or more compute nodes; and
providing access, by the switch, via the virtual media device, to the two or more compute nodes of the composed system, the media data to complete instantiation of the two or more compute nodes.
16. The computer program product of claim 15 , wherein the fabric of the composed system comprises a Peripheral Component Interconnect Express (PCIe) fabric, and the switch comprises a PCIe switch.
17. The computer program product of claim 15 , wherein the operations further comprise:
maintaining, by the switch, a cache comprising the media data; and
loading, from the cache, the media data, and
wherein providing access to the media data comprises retrieving the media data from the cache and sending the retrieved media data to the two or more compute nodes of the composed system.
18. The computer program product of claim 15 , wherein the operations further comprise loading the media data from local storage of the switch.
19. The computer program product of claim 15 , wherein the operations further comprise receiving the media data from a management server.
20. The computer program product of claim 15 , wherein providing access to the media data comprises sending, to the two or more compute nodes, the media data substantially in parallel.