wiki:GENIResources

Version 6 (modified by lnevers@bbn.com, 4 years ago) (diff)

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GENI Resources for Experimenters

There are various aggregate types in the GENI environment, some make compute and network resources available, such as InstaGENI, ExoGENI, and OpenGENI; while others make network-only resources available, such a AL2S, ION and MAX.

Slices

The aggregates that supply compute resources, generally make available both Virtual and bare metal nodes. You may requests any of these resources, as part of a slice, which is a container for all your requested resources. Each slice has an expiration date associated with it. When the slice expires, all your resources are released. The slice expiration defines to the amount of time your resources are allocated to you. Note, that the slice expiration is an overall expiration, but does not necessarily reflect the duration of your reservation at the aggregate. If you want to know when your slice expires, you can use the omni command as follows:

$ omni print_slice_expiration my-slice-name
...

 Result Summary: Slice urn:publicid:IDN+ch.geni.net:ln-test+slice+my-slice-name expires on 2015-02-23 20:47:28 UTC 

From the above you can see that the slice named 'my-slice-name' expires on '2015-02-23 20:47:28 UTC'. You can expand the amount of time that you request resources by renewing the slice, as follows:

$ omni renewslice my-slice-name 2015-02-28

Slivers

Resources requested at an individual aggregate are part of a sliver. I sliver can contain both compute and network resources that are part of your slice. Note that the slice expiration is not the same as the sliver expiration and that each aggregate has its own expiration, which may be significantly different than the slice.

To find the expiration date for a sliver you can use omni or stitcher as follows:

$stitcher --useSliceAggregates sliverstatus slice-name -o
....
Slice slice-name at AM ucd-eg has overall SliverStatus: ready.
 Resources in slice slice-name at AM ucd-eg expire at 2015-03-02T17:48:44 UTC.         <<---- Expiration date for sliver
 Saved sliverstatus on slice-name at AM ucd-eg to file slice-name-sliverstatus-exogeni-net-ucdvmsite.json. 
Slice slice-name at AM al2s has overall SliverStatus: ready.
 Resources in slice slice-name at AM al2s expire at 2015-08-20T17:47:53 UTC.           <<---- Expiration date for sliver
 Saved sliverstatus on slice-name at AM al2s to file slice-name-sliverstatus-al2s-internet2-edu.json. 
Slice slice-name at AM illinois-ig has overall SliverStatus: ready.
 Resources in slice slice-name at AM illinois-ig expire at 2015-05-17T17:48:46 UTC.    <<---- Expiration date for sliver
 Saved sliverstatus on slice-name at AM illinois-ig to file slice-name-sliverstatus-instageni-illinois-edu.json. 
Returned status of slivers on 5 of 5 possible aggregates.

Expiration by Aggregate type

This table captures the default and maximum duration available for resources by aggregate type:

Aggregate Resource Type Default Duration Max Duration
InstaGENI VM 6 days 90 days
InstaGENI Raw PC 7 days 90 days
ExoGENI VM 6 days 14 days
ExoGENI Bare Metal 7 days 14 days
ProtoGENI Utah VM 1 day 5 days
ProtoGENI Utah Raw PC 1 day 5 days
OpenGENI VM 7 day 185 days
AL2S network path 7 days 185 days duration
ION network path 6 days 180 days duration(*)

Note: Slice default duration is 7 day, but can be expanded to a maximum of 185 days.