Any server equip with more than 3 SSDs?

[Qinghao Hu]

Hi, 

Our project needs a single machine with over 3 SSDs. How can I obtain it from CloudLad?

Thanks,

Tony

[Mike Hibler]

How long do you need it for? And what do you need in the way of network
connectivity?

At the moment, we only have one machine type (d840) with 4 NVMe (PCIe v3),
not including the boot disk. But those are usually reserved for use in the
Powder testbed, so if they are available at all, you could only have one
for a day or two.

We have a fair number of c6525-100g nodes in the Utah cluster with 2 NVMe
(PCIe v4) SSDs each (not including boot disk). Those are generally available.

We have another one-off node with 4 SATA SSDs, but one of those is also
the boot disk. I am not sure what the experiment net connectivity is for
that node at the moment however.

Down the road there will be some nodes at Wisconsin with multiple NVMe
drives as well, but those have not even been ordered and could be 6 months
out.

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[Qinghao Hu]

Thanks for your detailed reply.

Both the d840 (with 4 NVMe) and one-off node (with 4 SATA SSDs) meet our requirements.

How can I get access to them? One or two days are acceptable for us.

Thanks,

Tony

[Mike Hibler]

Use 'pcap1' then.

As a general rule, you should create a reservation in advance for whatever
nodes you need. In this case, you will want to reserve one node at the
Utah Cloudlab cluster of type 'dl360'.

Even after you have the reservation, you will need to add a special "desire"
to your profile in order to allocate that node in an experiment:

node.Desire('pcap1','1.0')

We do this since the node also has 1TB of RAM, so we like to make sure
it isn't allocated unless it is specifically requested. A simple example
profile is:

"""Grab CloudLab Utah pcap1 node"""

import geni.portal as portal
import geni.rspec.pg as pg
import geni.rspec.emulab as emulab

pc = portal.Context()
request = pc.makeRequestRSpec()

node = request.RawPC('node')
node.component_id = 'urn:publicid:IDN+utah.cloudlab.us+node+pcap1'
node.Desire('pcap1','1.0')

pc.printRequestRSpec(request)

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