Maximizing a pool’s length

A math project I am doing asks the following:

Blammo is to be fired at ground level with a muzzle velocity of 35 m/s over a flaming wall that is 15 m high and a ground level shark pool. The pool will be made as long as possible. Determine the length of the pool, how far to place the cannon from the wall, and what elevation angle to use to ensure that Blammo clears the pool.

y(x)=tan(a)x-(x^2)((.004)/((cos(a))^2)) represents the trajectory of Blammo, where a=the elevation angle. Initially I thought using a 45 degree elevation angle would result in the longest pool length, but I forgot that the pool length was blammo’s horizontal distance (which can be modeled as 125sin(2a)) minus the distance from the flaming wall to the cannon. I graphed Blammos trajectory and y=15, and the first place they intersect is how far the cannon is from the flaming wall. Anyhow, after testing other elevation angles, I found the the one that would give the longest pool length (not the longest total distance of Blammo) was around 49 degrees. How can I find the exact angle? Do I need to use optimization somehow? Is there an equation I can set up?

SupremeVPS – Cloud SSD VPS Resource Pools starting from $19/yr for 2 VPS & more in Los Angeles, Chicago, and NY!

SupremeVPS’ own Mike recently contacted us with some exclusive deals on SSD VPS resource pools. The resource pools allow you to deploy in Los Angeles, Chicago, and/or New York. As always, we want to hear your feedback/reviews so please be sure to comment and share below if you decide to buy one!

Their WHOIS is public, and you can find their ToS/Legal Docs here. They accept PayPal, Credit Cards, Bitcoin, Litecoin and Ethereum as payment methods.

Here’s what they had to say: 

“A Cloud VPS Resource Pool is a new way of VPS Hosting – it’s essentially a pool of resources that you can mix and match your resources with, depending on your available resources within your plan. Whether you wish to allocate all resources into one giant VM, or split them up between multiple VMs – it’s up to you!

We also added a new datacenter location option a couple months ago – New York. If you order one of these, you’ll now be able to deploy VPS instances on demand in three locations, Los Angeles, Chicago and New York. In addition, as we continue to expand and grow as a company, you will automatically gain access to deploy in additional locations as they become available!”

Here’s the offers: 

2x SSD Cloud VPS Pool

  • Create Up To 2 VPS’s
  • 2 vCPU Cores
  • 2GB RAM
  • 30GB SSD Storage
  • 2TB Monthly Transfer
  • 1Gbps Port
  • 2x IPv4 Addresses
  • Linux OS Options
  • Resource Manager Panel
  • OpenVZ
  • Deploy in 3 Locations
  • $ 19/yr
  • [ORDER]

4x SSD Cloud VPS Pool

  • Create Up To 4 VPS’s
  • 4 vCPU Cores
  • 4GB RAM
  • 50GB SSD Storage
  • 5TB Monthly Transfer
  • 1Gbps Port
  • 4x IPv4 Addresses
  • Linux OS Options
  • Resource Manager Panel
  • OpenVZ
  • Deploy in 3 Locations
  • $ 35/yr
  • [ORDER]

8x SSD Cloud VPS Pool

  • Create Up To 8 VPS’s
  • 8 vCPU Cores
  • 8GB RAM
  • 100GB SSD Storage
  • 10TB Monthly Transfer
  • 1Gbps Port
  • 8x IPv4 Addresses
  • Linux OS Options
  • Resource Manager Panel
  • OpenVZ
  • Deploy in 3 Locations
  • $ 69/yr
  • [ORDER]

16x SSD Cloud VPS Pool

  • Create Up To 16 VPS’s
  • 16 vCPU Cores
  • 16GB RAM
  • 300GB SSD Storage
  • 30TB Monthly Transfer
  • 1Gbps Port
  • 16x IPv4 Addresses
  • Linux OS Options
  • Resource Manager Panel
  • OpenVZ
  • Deploy in 3 Locations
  • $ 120/yr
  • [ORDER]


NETWORK INFO:

Los Angeles, California (530 W. 6th St. Datacenter Facility)
Test IPv4: 107.175.180.6
Test file: http://107.175.180.6/1000MB.test

Chicago, Illinois (2200 Busse Rd., Elk Grove Village Facility)
Test IPv4: 172.245.240.34
Test file: http://172.245.240.34/1000MB.test

Buffalo, New York (325 Delaware Ave. Buffalo, NY Facility)
Test IPv4: 192.3.180.103
Test file: http://192.3.180.103/1000MB.test

Please let us know if you have any questions/comments and enjoy!

BigFootServers – VPS Pools starting at 4 VPS for $29/year with ability to deploy in Los Angeles & Dallas!

Alex from BigFootServers, sent in some new year deals on VPS pools that we felt was deal-worthy to display to you! They are offering discounted packages on VPS resource pools. With these VPS pools, they’re giving customers the ability to create VPS’s on-demand, in both Los Angeles and Dallas. We were told that as they continue to expand and add additional regions, existing customers will be able to get access to them within their resource pool at no additional charge.

Their WHOIS is public, and you can find their ToS/Legal Docs here. They accept PayPal, Credit Cards and Bitcoin as payment methods.

Here’s what they had to say: 

“BigFootServers was founded when we saw a need for a simpler solution for small businesses to get started online. Our service-first business model sets us apart from the rest. At BigFootServers, we treat you with the utmost respect that you deserve, as our valued customer.

We provide a wide variety of different web hosting services to fit everyone’s budget. The solutions we provide are unique (in a good way), because they put you in control over your resources and environment, unlike conventional hosting solutions. These are unlike your traditional & conventional hosting solutions, because the services we’re providing here put you in control.”

Here’s the offers: 

4 x VPS Pool

  • 4 CPU Cores
  • 100GB RAID-10 Disk
  • 4GB RAM
  • 5TB Monthly Bandwidth
  • 4 IPv4 Addresses
  • Create Up To 4 VPS’s
  • Los Angeles + Dallas
  • OpenVZ Virtualization
  • $ 29/year
  • [ORDER]

8 x VPS Pool

  • 8 CPU Cores
  • 200GB RAID-10 Disk
  • 8GB RAM
  • 10TB Monthly Bandwidth
  • 8 IPv4 Addresses
  • Create Up To 8 VPS’s
  • Los Angeles + Dallas
  • OpenVZ Virtualization
  • $ 55/year
  • [ORDER]

15 x VPS Pool

  • 16 CPU Cores
  • 500GB RAID-10 Disk
  • 16GB RAM
  • 30TB Monthly Bandwidth
  • 15 IPv4 Addresses
  • Create Up To 15 VPS’s
  • Los Angeles + Dallas
  • OpenVZ Virtualization
  • $ 99/year
  • [ORDER]

Product Description: Create, manage, resize or delete servers on demand within a few clicks! We provide you with a resource pool, and you determine how they are used! Please be sure to check out these screenshots of our easy to use and intuitive VPS Pools Interface here!

NETWORK/HARDWARE INFO:

ColoCrossing – Los Angeles, CA, USA
Test IPv4: 107.175.180.6
Test file: http://107.175.180.6/100MB.test

ColoCrossing – Dallas, TX, USA
Test IPv4: 192.3.237.150
Test file: http://192.3.237.150/100MB.test


– Intel Xeon E3 Processors
– 32GB to 64GB RAM
– 4x 2TB HDDs
– Hardware RAID10 with Caching
– 1Gbps uplink

Please let us know if you have any questions/comments and enjoy!

How wide (data + parity) would you go for erasure coded pools / raid 6?

I am currently doing k=8 and m=2

or in other words data = 8 + parity = 2 shards

I am using an all hdd ceph cluster.

I have thought about going data = 11 + parity = 2 which would save a lot of data.

Theoretically, you can keep on going up but what would you suggest is a good balance for the purposes of storing data such as images (200kb-1mb in size) + smaller thumnails of 30-50kb and icons of around 10kb.

What block size would you go for?

[CHRISTMAS] SparkVPS – 6GB KVM SSD VPS for $69/yr, SSD VPS Resource Pools & MORE w/ 3 MONTHS FREE!

Dylan from SparkVPS sent in some very nice special offers for Christmas! They are offering KVM SSD VPS’s as well as SSD VPS Resource Pools powered by OpenVZ – and best of all, all exclusive for LowEndBox readers!

Their WHOIS is public, and you can find their ToS/Legal Docs here. They accept PayPal and Cryptocurrency (Bitcoin, Litecoin, Ethereum, Monero, Bitcoin Cash) as payment methods.

Here’s what they had to say: 

“SparkVPS is a faster-than-SSD VPS provider. Here at SparkVPS, we specialize in providing VPS hosting. We are able to deliver unparalleled performance in the industry via our proprietary technology, which we call “MaxIO,” combined with our optimized local RAID-10 pure SSD access storage allows us to deliver VPS hosting that is twice as fast as traditional SSD VPS hosting.

Our new SSD VPS Resource Pools allow you to create VPS’s whenever you need them, and allow you to destroy them whenever you’re done with it. Within your resource pool, you are in control of how you wish to utilize your resource capacities. At the moment, customers are given the option to deploy in Dallas, Atlanta, and New York – with more locations coming soon!

In addition, we have some KVM SSD VPS offers, which support Docker, Custom Kernel Builds, and so much more!” We are sure we have the right solution for you whether you are looking for an OpenVZ or KVM based VPS solution!”

Here’s the offers: 

All Orders Get One Month Free – Open A Ticket After Your Order To Claim A Free Month Extension. *

Want more free months?
Prepay 2 Years (Biennially) – Get 2 Additional Months Free *
Prepay 3 Years (Triennially) – Get 3 Additional Months Free *
* Must order on or before 12/31/2018 to be eligible for the respective bonus. Please open a support ticket after your order in order to claim your free month(s).

2GB KVM SSD VPS

  • 2 CPU Cores
  • 2048MB RAM
  • 20GB SSD Storage
  • 2500GB Bandwidth
  • 1Gbps
  • KVM/SolusVM
  • $ 25/yr
  • [ORDER]

3GB KVM SSD VPS

  • 2 CPU Cores
  • 3072MB RAM
  • 50GB SSD Storage
  • 5000GB Bandwidth
  • 1Gbps
  • KVM/SolusVM
  • $ 35/yr
  • [ORDER]

6GB KVM SSD VPS

  • 6 CPU Cores
  • 6144 MB RAM
  • 60GB SSD Storage
  • 20000GB Bandwidth
  • 1Gbps
  • KVM/SolusVM
  • $ 69/yr
  • [ORDER]

4x SSD VPS Pool

  • Create up to 4 VPS’s
  • 4 CPU Cores
  • 4GB’s RAM
  • 60GB SSD Storage
  • 5TB Bandwidth
  • 4 x IPv4
  • Deploy in Dallas/NY/ATL
  • TUN/TAP/PPP Supported
  • Pool Resource Manager
  • OpenVZ
  • $ 39/yr
  • [ORDER]

8x SSD VPS Pool

  • Create up to 8 VPS’s
  • 8 CPU Cores
  • 8GB’s RAM
  • 120GB SSD Storage
  • 10TB Bandwidth
  • 8 x IPv4
  • Deploy in Dallas/NY/ATL
  • TUN/TAP/PPP Supported
  • Pool Resource Manager
  • OpenVZ
  • $ 69/yr
  • [ORDER]

12x SSD VPS Pool

  • Create up to 12 VPS’s
  • 12 CPU Cores
  • 12GB’s RAM
  • 200GB SSD Storage
  • 20TB Bandwidth
  • 12 x IPv4
  • Deploy in Dallas/NY/ATL
  • TUN/TAP/PPP Supported
  • Pool Resource Manager
  • OpenVZ
  • $ 99/yr
  • [ORDER]

16x SSD VPS Pool

  • Create up to 16 VPS’s
  • 16 CPU Cores
  • 16GB’s RAM
  • 400GB SSD Storage
  • 50TB Bandwidth
  • 16 x IPv4
  • Deploy in Dallas/NY/ATL
  • TUN/TAP/PPP Supported
  • Pool Resource Manager
  • OpenVZ
  • $ 120/yr
  • [ORDER]

NETWORK INFO:

Dallas, TX, USA
Test IPv4: 192.3.237.150
Test file: http://192.3.237.150/1000MB.test

Buffalo, NY, USA
Test IPv4: 192.3.180.103
Test file: http://192.3.180.103/1000MB.test

Atlanta, GA, USA
Test IPv4: 192.3.16.134
Test file: http://192.3.16.134/1000MB.test


OpenVZ Nodes:
– Intel Xeon E3 Series Processors
– 32GB DDR3 RAM
– Samsung Enterprise SSD’s
– Dual/Redundant Power Supply
– 1Gbps Network Uplink

KVM Host Nodes
– Intel Dual Xeon E5 Series Processors
– 128GB DDR3 RAM
– Samsung Enterprise SSD’s
– Dual/Redundant Power Supply
– 1Gbps Network Uplink

Please let us know if you have any questions/comments and enjoy! Merry Christmas!

[CHRISTMAS EVE] BigFootServers – VPS Pools starting at 2 VPS for $18/year! (3-MONTHS FREE!)

With 2018 soon coming to an end, Alex from BigFootServers has sent in some attractive year-end deals on VPS pools that we’d like to showcase with you today. They are offering discounted packages on VPS pools, plus a Year End incentive that allows you to get up to 3 months free on top. With these VPS pools, they’re giving customers the ability to create VPS’s in Los Angeles and Dallas. We were told that as they continue to expand and add additional regions, existing customers will be able to get access to them within their resource pool at no additional charge.

Their WHOIS is public, and you can find their ToS/Legal Docs here. They accept PayPal, Credit Cards and Bitcoin as payment methods.

Here’s what they had to say: 

“BigFootServers was founded when we saw a need for a simpler solution for small businesses to get started online. Our service-first business model sets us apart from the rest. At BigFootServers, we treat you with the utmost respect that you deserve, as our valued customer.

We provide a wide variety of different web hosting services to fit everyone’s budget. The solutions we provide are unique (in a good way), because they put you in control over your resources and environment, unlike conventional hosting solutions. These are unlike your traditional & conventional hosting solutions, because the services we’re providing here put you in control.”

Year End INCENTIVE:
– All Orders Get 1 Month Free
– Prepay Biennially (Every 2 Years) and get 2 Months Free
– Prepay Triennially (Every 3 Years) and get 3 Months Free
* Please open a support ticket after ordering to claim your respective incentive! Must order before End of 2018 to claim incentive. *

Here’s the offers: 

2 x VPS Pool

  • 2 CPU Cores
  • 60GB RAID-10 Disk
  • 2GB RAM
  • 3TB Monthly Bandwidth
  • 2 IPv4 Addresses
  • Create Up To 2 VPS’s
  • Los Angeles + Dallas
  • OpenVZ Virtualization
  • $ 18/year
  • $ 36/2 years
  • $ 54/3 years
  • [ORDER]

3 x VPS Pool

  • 3 CPU Cores
  • 80GB RAID-10 Disk
  • 3GB RAM
  • 5TB Monthly Bandwidth
  • 3 IPv4 Addresses
  • Create Up To 3 VPS’s
  • Los Angeles + Dallas
  • OpenVZ Virtualization
  • $ 25/year
  • $ 50/2 years
  • $ 75/3 years
  • [ORDER]

6 x VPS Pool

  • 6 CPU Cores
  • 150GB RAID-10 Disk
  • 6GB RAM
  • 8TB Monthly Bandwidth
  • 6 IPv4 Addresses
  • Create Up To 6 VPS’s
  • Los Angeles + Dallas
  • OpenVZ Virtualization
  • $ 45/year
  • $ 90/2 years
  • $ 135/3 years
  • [ORDER]

10 x VPS Pool

  • 10 CPU Cores
  • 300GB RAID-10 Disk
  • 12GB RAM
  • 20TB Monthly Bandwidth
  • 10 IPv4 Addresses
  • Create Up To 10 VPS’s
  • Los Angeles + Dallas
  • OpenVZ Virtualization
  • $ 79/year
  • $ 158/2 years
  • $ 237/3 years
  • [ORDER]

16 x VPS Pool

  • 16 CPU Cores
  • 750GB RAID-10 Disk
  • 24GB RAM
  • 30TB Monthly Bandwidth
  • 16 IPv4 Addresses
  • Create Up To 16 VPS’s
  • Los Angeles + Dallas
  • OpenVZ Virtualization
  • $ 119/year
  • $ 238/2 years
  • $ 357/3 years
  • [ORDER]

Product Description: Create, manage, resize or delete servers on demand within a few clicks! We provide you with a resource pool, and you determine how they are used! Please be sure to check out these screenshots of our easy to use and intuitive VPS Pools Interface here!

NETWORK/HARDWARE INFO:

ColoCrossing – Los Angeles, CA, USA
Test IPv4: 107.175.180.6
Test file: http://107.175.180.6/100MB.test

ColoCrossing – Dallas, TX, USA
Test IPv4: 192.3.237.150
Test file: http://192.3.237.150/100MB.test


– Intel Xeon E3 Processors
– 32GB to 64GB RAM
– 4x 2TB HDDs
– Hardware RAID10 with Caching
– 1Gbps uplink

Please let us know if you have any questions/comments and enjoy!

NFPHosting – VPS Resource Pools starting at 2 VPS @ $15/yr & much more in LA, NY, and CHI!

The folks over @ NFP Hosting has recently sent in a new offer for us! They are offering VPS Resource Pools starting at just $ 15/year for 2 VPS’s. We’ve been told that three locations are currently available for deployment within the pool (Los Angeles, New York, and Chicago) – however as they expand to additional locations, it will automatically be added to the pool for you to deploy in.

You can find their ToS/Legal Docs here. They accept PayPal, Credit Cards, Alipay, Ethereum and Bitcoin.

More about the company: 

“NFPHosting.com was founded in 2006 as an e-commerce hosting provider after seeing the lack of hosts who can deliver quality. Throughout the years of learning the ins and outs of running a hosting company, and seeing the opportunities to expand in the marketplace, NFP Hosting throughout the years added additional services to serve a wider variety of markets. NFP Hosting today offers everything the basic consumer looking to start a website may need, all the way up to the advanced (technical) user looking to set up a cluster of servers. At NFP Hosting, there is no waiting around. Services are instantly provisioned, and 24/7 customer support comes standard with our plans. No compromises. No excuses. It’s really as simple as that.”

HERE’S THE OFFERS:

VPS Pool #1

  • Create Up To 2 VPS!
  • 2 CPU Cores
  • 60GB Disk Space
  • 2GB RAM
  • 4GB vSwap
  • 3TB Monthly Bandwidth
  • 1000Mbps Network Port
  • 2 IPv4 Addresses
  • Chicago, Los Angeles and NY
  • Virtualizor Control Panel
  • $ 15/year
  • [ORDER]

VPS Pool #2

  • Create Up To 4 VPS!
  • 4 CPU Cores
  • 120GB Disk Space
  • 4GB RAM
  • 8GB vSwap
  • 5TB Monthly Bandwidth
  • 1000Mbps Network Port
  • 4 IPv4 Addresses
  • Chicago, Los Angeles and NY
  • Virtualizor Control Panel
  • $ 25/year
  • [ORDER]

VPS Pool #3

  • Create Up To 8 VPS!
  • 8 CPU Cores
  • 200GB Disk Space
  • 8GB RAM
  • 16GB vSwap
  • 6TB Monthly Bandwidth
  • 1000Mbps Network Port
  • 8 IPv4 Addresses
  • Chicago, Los Angeles and NY
  • Virtualizor Control Panel
  • $ 45/year
  • [ORDER]

VPS Pool #4

  • Create Up To 12 VPS!
  • 12 CPU Cores
  • 300GB Disk Space
  • 16GB RAM
  • 32GB vSwap
  • 10TB Monthly Bandwidth
  • 1000Mbps Network Port
  • 12 IPv4 Addresses
  • Chicago, Los Angeles and NY
  • Virtualizor Control Panel
  • $ 79/year
  • [ORDER]