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Author Topic: [ANN] Sia - Decentralized Storage  (Read 1343906 times)
chrysophylax
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August 15, 2015, 12:48:32 PM
 #1521

Hey guys, sorry for the let-down, but the new wallet is going to need another week. Here's a list of what's going to be available:

1. Erasure coding! All files are now uploaded to 12 hosts, and the full file can be recovered from any 2 hosts. The redundancy overhead is 6 (compared to the previous redundancy overhead of 8 ). 6 is still very high, twice the industry average. We're doing this because we don't want anyone losing their files, and we still feel that the network is in an early stage. As the network matures, we will continue to reduce the amount of redundancy overhead.

2. Parallel downloads, smarter uploads! Previously, files were downloaded from a single host, and speeds were limited to that host's upload bandwidth. Now, downloads are done in parallel.

3. Encrypted wallet! Previously, the wallet secret keys were kept unencrypted on disk. The keys are now encrypted on disk, and the wallet can be locked and unlocked to enable spending. When the wallet is unlocked, the keys are kept decrypted in memory. When the wallet is locked again, the memory gets wiped.

4. Wallet recovery seeds. All new addresses are now made from a single seed, which means that, as long as you have the seed, you can recover your addresses if you lose your  wallet. Note that previously existing wallet addresses cannot be regenerated by a seed. If you want to enjoy the full protection of wallet seeds, you are going to need to send all of your coins to a seed-generated address.

5. Increased wallet safety. Previously, people had been losing coins because the wallet would sometimes get confused and obliterate addresses it had previously sent money to. This only happened when multiple instances of siad were running, or if the user started moving files around without closing siad first. But it still happened sometimes, and coins were lost as a result. Now, the wallet will never overwrite an existing file, and will never destroy addresses that have been saved to disk. The wallet will never give an address that isn't already saved to disk. Upgrading siad no longer puts your coins at risk.

5. Full wallet API, which means that Sia is now ready to be put on an exchange!

6. Siad uses a databse. Previously, the whole blockchain and output set was kept in memory. It has now been moved to disk. Siad's memory footprint is now around 40mb on Linux. Moving everything to disk made siad slower, but there are some pretty clear avenues to improve speeds. On an HDD (SSDs will be faster), it took me about 90 minutes to download the first 13,000 blocks.

7. Increased max filesize. The maximum filesize allowed by the client has been increased to 5GB. This is because of the more intelligent uploading and downloading algorithms, and the more intelligent host protocols.

8. Refreshed UI. While the UI looks very similar to how it did previously, the architecture has been completely re-written. Most importantly, strong plugin support has been added, which makes it easy for developers to write their own plugins for the UI that use Siad or even talk to other daemons. People who have been excited about things like a Sia-based video streaming now have a platform on which to build such a thing.

I think that covers all of the major changes that will be available in the next release. There have also been a handful of bugfixes that are being released. We are planning on adding support for tracking and uploading folders in 0.4.1, which should be released a week or two after 0.4.0.

Thanks for hanging tight.

As a reminder, everything that we've written to date is open source. The code for Siad can be found here: https://github.com/NebulousLabs/Sia

The related projects and libraries that we've built (such as the UI) can be found here: https://github.com/NebulousLabs

and THIS is why sia has the support it does ...

tanx a great deal taek ...

amazing bloody work mate ...

#crysx

Exchange - https://www.zapple.com/exchange/ . CWI-Thread - https://bitcointalk.org/index.php?topic=1563601 . EMail - crysx@gnxs.com . CWI-WebSite - https://chainworksindustries.com/ . CWI-Mine - http://chrysolite.chainworksindustries.com/ . CWI-Pyroxene (theMine) - http://pyroxene.chainworksindustries.com/ . GRN - Gfz2cXMkhMZYWSFvLEMnM8bXk7X5Mtq2J2
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TerraMaster
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August 16, 2015, 05:49:31 PM
 #1522

Taek,

That's a whole lot of improvements and new features! You got the extra week or more if needed  Smiley lol, this is some significant progress over the previous versions.. larger file uploads is great..  that in itself should increase demand for those hosting SIA. Look forward to folders.

Is the port forwarding issue (Host Announce)  being addressed in the 4.0?

Ready to see everyone rallying back in here to upgrade when released.

Thanks for the update.

BTC:1DiR25SPo84sThzTATr27EZEQZLt6hv6tG
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August 16, 2015, 10:40:17 PM
 #1523

6. Siad uses a databse. Previously, the whole blockchain and output set was kept in memory. It has now been moved to disk. Siad's memory footprint is now around 40mb on Linux. Moving everything to disk made siad slower, but there are some pretty clear avenues to improve speeds. On an HDD (SSDs will be faster), it took me about 90 minutes to download the first 13,000 blocks.

This is very good news. We have had Sia running on the Bitseed Server, bitseed.org, to test it for storage coins. It has been running fine with 1 Gb of RAM, 4 Gb eMMC onbaord flash, 160 Gb hard drive, and dual core ARM processor, but for future growth, having the data on the HDD will work much better. Crypti had problems using up the RAM on the unit before the blockchain was moved to the HDD. Now it runs fine with 768 Mb or more of RAM, and can run multiple instances on a single CPU.

We need a low cost source for large 1 Tb+ drives for it to be competitive with external drives. Our current source only goes to 320 GB.

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August 17, 2015, 06:09:31 AM
 #1524

We need a low cost source for large 1 Tb+ drives for it to be competitive with external drives. Our current source only goes to 320 GB.

Do you mean like a cloud storage provider? Or more like a VPS?

--------

If anyone is interested in running a "bootstrap node", please PM me. If you are running a bootstrap node, it means that you'll be in the list of nodes that people connect to first. It means  that you need 98-99% uptime for your node, and it also means that people will probably be downloading a lot of blocks from you and using up a small amount of bandwidth. If Sia grows by 10x in the next month, you can expect to upload around 20-50GB from your node - it's not that much but it's also not trivial.

You will need forwarded ports. Ideally I think we'd like to have 10-20 people step forward as volunteers. The more volunteers that we get, the less strain that each volunteer will experience on their node.

Thanks!
chrysophylax
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August 17, 2015, 06:18:42 AM
 #1525

We need a low cost source for large 1 Tb+ drives for it to be competitive with external drives. Our current source only goes to 320 GB.

Do you mean like a cloud storage provider? Or more like a VPS?

--------

If anyone is interested in running a "bootstrap node", please PM me. If you are running a bootstrap node, it means that you'll be in the list of nodes that people connect to first. It means  that you need 98-99% uptime for your node, and it also means that people will probably be downloading a lot of blocks from you and using up a small amount of bandwidth. If Sia grows by 10x in the next month, you can expect to upload around 20-50GB from your node - it's not that much but it's also not trivial.

You will need forwarded ports. Ideally I think we'd like to have 10-20 people step forward as volunteers. The more volunteers that we get, the less strain that each volunteer will experience on their node.

Thanks!

im happy to step forward taek ...

ill have a dedicated system ( or systems if we need more ) up and running specifically for this ...

let me know ...

#crysx

Exchange - https://www.zapple.com/exchange/ . CWI-Thread - https://bitcointalk.org/index.php?topic=1563601 . EMail - crysx@gnxs.com . CWI-WebSite - https://chainworksindustries.com/ . CWI-Mine - http://chrysolite.chainworksindustries.com/ . CWI-Pyroxene (theMine) - http://pyroxene.chainworksindustries.com/ . GRN - Gfz2cXMkhMZYWSFvLEMnM8bXk7X5Mtq2J2
bitseedmike
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August 17, 2015, 03:24:54 PM
 #1526

We need a low cost source for large 1 Tb+ drives for it to be competitive with external drives. Our current source only goes to 320 GB.

Do you mean like a cloud storage provider? Or more like a VPS?

--------

If anyone is interested in running a "bootstrap node", please PM me. If you are running a bootstrap node, it means that you'll be in the list of nodes that people connect to first. It means  that you need 98-99% uptime for your node, and it also means that people will probably be downloading a lot of blocks from you and using up a small amount of bandwidth. If Sia grows by 10x in the next month, you can expect to upload around 20-50GB from your node - it's not that much but it's also not trivial.

You will need forwarded ports. Ideally I think we'd like to have 10-20 people step forward as volunteers. The more volunteers that we get, the less strain that each volunteer will experience on their node.

Thanks!

This is for a stand-alone unit with internal storage which plugs into a LAN like a network attached storage (NAS) box, but runs as a personal server. You mentioned using RAID previously, but we have only one SATA port. There are 2 external USB ports so if these can be configured to use a pair of 3TB external drives then the unit could use the existing internal drive to store the blockchain and use the pair of external drives in RAID 0 for storage. Problem with external drives is they tend to have poor cooling though for continuous operation.

Part of it depends on the direction Sia wants to go - a large network of drives running in the home or a smaller network of clustered drives running in server farms.

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August 17, 2015, 03:46:36 PM
Last edit: August 17, 2015, 05:20:28 PM by okae
 #1527

i have a noob question that maybe have been already answered, but i will take the risk and ask it.

I care about if there is some type of protecction about what type of archives can be stored if we rent our HDD space, i mean, imagine that some type of hacker or pedofilo use our HD space to store his virus/photos, are we protected againts that?

because i dont want to rent my space if "users" will use it with malicious intent, dont know if you guys understand what im trying to say.

IMHO #1 of suspects, Hal Finney is/was Satoshi Nakamoto
bitspill
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August 17, 2015, 10:38:45 PM
 #1528

i have a noob question that maybe have been already answered, but i will take the risk and ask it.

I care about if there is some type of protecction about what type of archives can be stored if we rent our HDD space, i mean, imagine that some type of hacker or pedofilo use our HD space to store his virus/photos, are we protected againts that?

because i dont want to rent my space if "users" will use it with malicious intent, dont know if you guys understand what im trying to say.

All files are encrypted so you have no way of knowing what the user uploads. At the same time though all you're storing is random numbers since it's encrypted and no agency can prove it's cp/viruses or anything like that to get you in trouble.

In a later version you won't even be storing the entire file but a fragment of it

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August 17, 2015, 11:48:12 PM
 #1529

First at all thank you @bitspill for your reply, i really apreciate it.

In a later version you won't even be storing the entire file but a fragment of it

So with the current version, files arent fragmented in more than one hosts?

IMHO #1 of suspects, Hal Finney is/was Satoshi Nakamoto
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August 18, 2015, 02:11:51 AM
 #1530

In a later version you won't even be storing the entire file but a fragment of it

So with the current version, files arent fragmented in more than one hosts?

Currently there are 8 full copies stored on 8 different hosts. The future plan is to have dozens of hosts holding fragments with each fragment replicated a few times.

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Taek
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August 18, 2015, 09:51:43 AM
 #1531

Currently there are 8 full copies stored on 8 different hosts. The future plan is to have dozens of hosts holding fragments with each fragment replicated a few times.

Starting with 0.4.0, which is just days away, files will be fragmented. 6 full copies will be stored across 12 hosts, erasure coded such that the original file can be rebuilt from any 2 of the hosts. The files will be (as they have been up to this point) encrypted, so even if the hosts try to talk to eachother, they still can't determine the original content of the files.

Also, we setup the slackin on our own servers now!

slackin.siacoin.com
SpeedDemon13
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August 19, 2015, 03:30:06 AM
 #1532

How to mine this coin step by step? I can't seem to fine exact instructions on how to....

CRYPTSY exchange: https://www.cryptsy.com/users/register?refid=9017 BURST= BURST-TE3W-CFGH-7343-6VM6R BTC=1CNsqGUR9YJNrhydQZnUPbaDv6h4uaYCHv ETH=0x144bc9fe471d3c71d8e09d58060d78661b1d4f32 SHF=0x13a0a2cb0d55eca975cf2d97015f7d580ce52d85 EXP=0xd71921dca837e415a58ca0d6dd2223cc84e0ea2f SC=6bdf9d12a983fed6723abad91a39be4f95d227f9bdb0490de3b8e5d45357f63d564638b1bd71 CLAMS=xGVTdM9EJpNBCYAjHFVxuZGcqvoL22nP6f SOIL=0x8b5c989bc931c0769a50ecaf9ffe490c67cb5911
WilderX
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August 19, 2015, 11:27:59 AM
Last edit: August 19, 2015, 12:22:20 PM by WilderX
 #1533

How to mine this coin step by step? I can't seem to fine exact instructions on how to....

1. Download latest wallet:
https://github.com/NebulousLabs/Sia-UI/releases/download/v0.3.3.3-beta/Sia-UI-v0.3.3.3-beta-win64.zip

2. Extract wallet

3. Run wallet

4. Download GPU miner and extract it:
https://github.com/droghio/Sia-GPU-Miner/releases/download/1.02j/sia-gpu-winx64-1.02l.zip

5. Run miner in commandline with parameters: -I 26 -d 0
-I adjusts intensity (lower intensity if your crashing or want to do other stuff on the PC while mining) -d is the GPU device you want to use (for multiple GPU's on same PC you have to run another instance with -d 1 and so on)

The wallet has to be running before you start the miner and then found block rewards automatically is received in your wallet after some time...

Thats pretty much it. As reference with the miner I have linked and with 290x card you should get a little over 1000+ MH/s per card when intensity @ 26.

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August 20, 2015, 09:55:03 AM
 #1534

Hey guys,

I'm having an issue on the OS X wallet.

I simply can't copy the address. There is no context click menu available with a Copy option. Hitting Command+C does not copy the string of characters. I would have to manually type every character one by one. I'm not going to do that. I need to be able to copy and paste addresses.
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August 20, 2015, 11:28:30 AM
 #1535

Hey guys,

I'm having an issue on the OS X wallet.

I simply can't copy the address. There is no context click menu available with a Copy option. Hitting Command+C does not copy the string of characters. I would have to manually type every character one by one. I'm not going to do that. I need to be able to copy and paste addresses.

Hi, this is a known issue. We are working on a fix. There will be a new release in the next few days, we hope to have copy/paste working on Mac in some form by then. It works fine on all other operating systems as far as we are aware. We apologize for not having addressed the issue earlier.
Taek
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August 21, 2015, 06:42:06 AM
 #1536

Hi, this is a known issue. We are working on a fix. There will be a new release in the next few days, we hope to have copy/paste working on Mac in some form by then. It works fine on all other operating systems as far as we are aware. We apologize for not having addressed the issue earlier.

I don't have a mac to test it on, but I believe the issue has been fixed.   Smiley
Nautica
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August 21, 2015, 10:39:57 AM
 #1537

Hi, this is a known issue. We are working on a fix. There will be a new release in the next few days, we hope to have copy/paste working on Mac in some form by then. It works fine on all other operating systems as far as we are aware. We apologize for not having addressed the issue earlier.

I don't have a mac to test it on, but I believe the issue has been fixed.   Smiley
Cheers. Pasting doesn't seem to work either. So please make sure you have pasting working as well. Smiley Looking forward to the new release!
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August 22, 2015, 06:56:27 PM
 #1538

If I am not mistaken there was going to be a 0.4.0 release around 15th of August.
Taek
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August 22, 2015, 09:34:07 PM
 #1539

If I am not mistaken there was going to be a 0.4.0 release around 15th of August.

heh.

yeah we're behind on that. In the slack we've posted a teaser, everything is approx. working except for the renting and hosting. Renting and hosting are completely written, but are still being tested and debugged, not ready for the public yet.
chrysophylax
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August 23, 2015, 01:52:31 AM
 #1540

If I am not mistaken there was going to be a 0.4.0 release around 15th of August.

heh.

yeah we're behind on that. In the slack we've posted a teaser, everything is approx. working except for the renting and hosting. Renting and hosting are completely written, but are still being tested and debugged, not ready for the public yet.

stay strong to the cause and bring out a solid product - even if behind schedule ...

dont be a microsoft and just stick to deadlines with a dodgy product release ...

when i get back on next week - ill have a look at what ive been missing ...

great work taek and team ...

#crysx

Exchange - https://www.zapple.com/exchange/ . CWI-Thread - https://bitcointalk.org/index.php?topic=1563601 . EMail - crysx@gnxs.com . CWI-WebSite - https://chainworksindustries.com/ . CWI-Mine - http://chrysolite.chainworksindustries.com/ . CWI-Pyroxene (theMine) - http://pyroxene.chainworksindustries.com/ . GRN - Gfz2cXMkhMZYWSFvLEMnM8bXk7X5Mtq2J2
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