Stabalize Calibration network (calibnet)

[BigLep]

Background

At least as of 2025-11-25, one SP has more than 50% of the power.

If that SP is temporarily down, the time to get messages on the chain takes longer. (This happened on 2025-10-28.)

We want to have enough power here that it’s non-trivial for non-implementation teams to fork the calibration network.

Done Criteria

3 "just right" sized miner from 3 different organizations so there is enough of a moat while having some resiliency to one SP being down.

Specifically, this translates to:

• Venus keep their miner t04040 at ~250 TiB of QAP
• Curio reducing miner t0143103 to 250 TiB of QAP
• Chainsafe bringing up a miner with 250 TiB of QAP. (Curio should be able to help seal 25 TiBs of sectors.)

As a bonus, since this is about calibnet stability, we'd like to have Probelab add monitoring for calibnet to https://probelab.io/filecoin

Why Important

This is coming at a time where there is a lot of development and testing on calibration with Filecoin Onchain Cloud.

Notes

1. This was discussed at FDS-7 (session notes)
2. Slack thread in #fil-net-calib-discuss

[BigLep]

Ccing @ianconsolata and @lanzafame because it was mentioned in FDS-7 that you were interested in being kept in the loop on this topic.

[ianconsolata]

Thanks! Will you coordinate directly with the Venus and Chainsafe teams on this, or do you want us to bring it up in our meetings with them?

[BigLep]

ChainSafe Infra is the long poll here with setting up new hardware and onboarding new sectors. A status update was requested in https://filecoinproject.slack.com/archives/C01D42NNLMS/p1769143019743889?thread_ts=1764221330.392239&cid=C01D42NNLMS

[BigLep]

@joshdougall: any update on the ChainSafe infra side?

[joshdougall]

hey @BigLep, apologies for the delay on this one - ChainSafe is currently re-scoping costs with updated server specs specific to this deployment. We are also working with Curio to receive the sealed sectors, which we are still discussing the best transfer format. @liveder will update shortly with more details!

[liveder]

Hi There,
As Josh already mentioned, we are already in touch with Curio regarding data transfer (S3). I hope by tomorrow we will initiate the transfer. For the server, we received one offer from the server provider, but it was a bit costly, so today/tomorrow we are waiting for another offer. Also, we will look into other possibilities.
Will keep updated.

[BigLep]

@joshdougall @liveder : FYI that the criticality of this initiative has increased. FOC in it's current configuration and their only being one main SP (thus causing less block production) is meaning we're near our max chain capacity. We will do things on the FOC side (see FilOzone/filecoin-services#409 ), but this is one more reason why we need to get Calibration stabilized as soon as possible. Is there an estimate on when the Chainsafe Infra side will be done?

[liveder]

@BigLep At this point, we’re targeting to have it up and running around mid next week. We’ll keep you posted with progress.

[BigLep]

@liveder : how isthis going?

[liveder]

We had a small issue this week, but we will do our best to make it up by mid this week.

[liveder]

Here is a small update.
The server is up and running.
At the moment we are working with Curio team to receive the sealed sectors.