Seems likely that the initial wave is plateauing. Drive prices are silly and availablility is now terrible.
I have one local distributor that has a timeline of end 2022 for 16TB drives. I suspect this is because they just cant get a date from the manufacturer. For other sizes ETA's are July and Aug.
Unfortunately it takes 3 weeks or so to get Ebay items to me now which means the first items I initally bought have only just arrived but subsequent purchases are still slowely appearing.
On the up side I did get 4x 400GB HGST SAS SSD's yesterday for US$200 so will see how they look (TBW remaining) after they arrive.
Chia price is now 1/3 what it was when I started this journey
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My direction now will pretty much be;
- Wait for the last items to arrive from EBay / others.
- Final build, tuning & reporting.
- Only long term storage, replacement parts (burned up SSDs etc) and significant upgrades at low prices.
At around 20 plots a day I am barely keeping up with the predicted payout period. With 214 plots I have a estimated 5 month payout wait. Stopping plotting for 12 hours to rebuild a machine jumps back to 6 months. The other 62 plots I have on my 2 remote harvesters are not included in that calc.
Just as a guide for others...
I am currently runing two machines
- Supermicro X9DR3 - dual E5-2690, 192GB 1600MHz ram (Awaiting replacement Mboard due to falty mem channel, drives)
- HP ML350p G8 - Single E5-2690, 32GB 1600MHz ram (awaiting heasink, ram, 8bay 2.5" cage, HP420 controller, SAS 10k drives)
- My desktop - i7-7800X, 32GB ram.
One tmp per plot (parallel not staggered) is giving the following phase 1 timings using E5-2690's, &1600MHz ram with fairly standard ploting settings, not really tuned at all. Plotting is controlled via Swar plot manager on the E5 machines, manually on my desktop.
- NVME (Samsung) - 4h
- SSD (Intel / Samsung) - 4h
- HGST 2TB HDD - approx 5h
Total time is between 9.5h and 11h (NVME & SSD)
Total time is between 7h and 16h (SSD & Hard drive)
My plots have recently rolled over or I would have taken a screen shot.
The timings are pretty much the same for my E3-1270v1 / v2 machines (currently off-line due to fan noise and lack of drives).
Interenstingly, just taking a look at this... the plots with higher CPU (i.e. 130%) are over twice as fast against less CPU (71%). Understandable due to CPU intensive portions but how is 130% CPU provisiioned......
Will look closer at the logs tonight.
I have Splunk grabbing debug and plotter logs from one harvester but have not linked the others in yet and have not sorted out the props / transforms / searchs & dashboards. Another job on the list
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Would be interesting to see others current specs and timings.