kermlin 2017-01-14 03:45:19
krashan: Ah! Didn't think about that; But these are intel Gigabit channels. Shouldn't they be faster than USB?
krashan 2017-01-14 03:45:48
kermlin: Compared to USB mass storage, networked filesystem adds a few layers of abstraction
krashan 2017-01-14 03:46:08
kermlin: Also you probably want to have your bandwidth free for other uses.
kermlin 2017-01-14 03:47:27
krashan: I did't know that. Could you explain more, or give me a source I could read to understand that?
kermlin 2017-01-14 03:48:06
krashan: Umm.. wait, is the total bandwidth that the router can handle, fixed?
kermlin 2017-01-14 03:48:58
krashan: ...because the harddisk will be sitting inside the local gigabit -net of the router... so isn't that a lot of bandwidth?
krashan 2017-01-14 03:48:59
kermlin: I guess so. As it is a router (not just a switch), it runs TCP/IP stack in software. What operating system it uses?
kermlin 2017-01-14 03:49:19
krashan: OpenBSD
krashan 2017-01-14 03:50:19
kermlin: So quite advanced stack with many functions. I guess that bandwidth limit imposed by CPU speed is lower than hardware limit of Ethernet interfaces.
krashan 2017-01-14 03:51:13
kermlin: Each IP packet is processed by software. You also need to run network file system node on your router.
krashan 2017-01-14 03:53:11
kermlin: Also for mostly random access performed by Bitcoin Core, drive seek time is important more than read/write bandwidth. While total seek time of USB drive would be longer than SATA, network drive may be order of magnitude slower.
Chillum 2017-01-14 03:53:58
using 2 SSDs striped together it took only 32 hours to sync the entire blockchain for me
Chillum 2017-01-14 03:54:21
with a platter drive it takes forever to get anywhere
Xenogenesis 2017-01-14 03:54:28
Is this value static?
Xenogenesis 2017-01-14 03:55:06
Like if you strip 4 drives 2gether it takes 16h?
Chillum 2017-01-14 03:55:15
probably not as there are other bottlenecks
kermlin 2017-01-14 03:55:19
krashan: I see, so you're saying that no matter how fast the harddisk, the network will still be the limiting factor?
Chillum 2017-01-14 03:55:24
I was using most of 2 cores the entire time
Chillum 2017-01-14 03:55:37
and was downloading about 2-5megs a second
Chillum 2017-01-14 03:56:09
if you have lots of cpu and a giant connection the internet then faster drives will probably give more benefit
Chillum 2017-01-14 03:56:29
but really you only need to catch up once then you have more than enough to keep up with a block every 10 minutes
kermlin 2017-01-14 03:57:23
Chillum: even with a regular HDD connected to the router via LAN?
Chillum 2017-01-14 03:57:48
once caught up you should be able to keep up with a network drive, but it will take forever to catch up
Chillum 2017-01-14 03:58:30
you can always catch up on one system then copy the files to another
Chillum 2017-01-14 03:58:45
gotta go, be back later
kermlin 2017-01-14 03:58:51
Chillum: Ah, I see... thanks
krashan 2017-01-14 03:59:23
Chillum: Yes. Using platter drive on USB 2.0 full sync takes 4 to 5 days.
krashan 2017-01-14 04:00:13
Anyway USB will be still better than netdrive IMHO.
krashan 2017-01-14 04:00:21
In absence of SATA.
Chillum 2017-01-14 04:01:04
expect it to dominate your network
cluelessperson 2017-01-14 04:11:48
Question, how do you make small public addresses?
cluelessperson 2017-01-14 04:11:56
I've seen somewhere having one that's like 14 chars long
arubi 2017-01-14 04:12:38
shortest is 26
arubi 2017-01-14 04:12:47
26 chars that is
knocte 2017-01-14 04:16:01
cluelessperson: maybe that was testnet?
arubi 2017-01-14 04:16:26
shortest one for testnet is probably even longer than 26
arubi 2017-01-14 04:17:37
cluelessperson, addresses are made out of 25 bytes encoded in base58. I don't think they can be shorter than 26 characters
cluelessperson 2017-01-14 04:25:00
okay
grubles 2017-01-14 04:26:00
you might be thinking of first bits
grubles 2017-01-14 04:26:04
which no one uses anymore
Xenogenesis 2017-01-14 04:28:31
Hi SleepwalkerDo
kermlin 2017-01-14 04:31:05
krashan: the pcengines board does have a SATA port & power, inside (http://pcengines.ch/pdf/apu2.pdf); so if I get an external hardisk that has a SATA cable, I'd have a better setup, eh?
piqure 2017-01-14 04:31:07
^^^ WARNING: any URL may lead directly or indirectly to COIN-STEALING MALWARE! ^^^
krashan 2017-01-14 04:32:27
kermlin: Definitely.
bitcoin23832 2017-01-14 04:34:38
is it possible to run bitcoin-core on a virtual private server?
kermlin 2017-01-14 04:37:59
krashan: earlier, you said that seeking and reading/writing are different. Could you explain?
krashan 2017-01-14 04:40:05
kermlin: Core reads small fragments of data from different offsets in different files. Then the drive has to jump constantly to different locations. For mechanical drives it slows the operation down. It is also true for networked drives, as each seek means sending a command and receiving response.
krashan 2017-01-14 04:40:58
kermlin: Then seek time in general has two components: physical drive response and delay introduced by interface.
krashan 2017-01-14 04:41:21
kermlin: To reduce physical response time one uses solid state drives (SSD)
krashan 2017-01-14 04:41:37
kermlin: To reduce interface delay, one uses fast, direct interfaces like SATA
