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0
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2answers
190 views

1.73 Gbps at best on an Amazon EC2 10 Gigabit instance?

When I test my own '10 Gigabit' instances (c3.8xlarge) with iperf I won't see transfer rates exceeding 1.73 Gbps. This is at least four times worse than what a blogger at scalablelogic reports where ...
-2
votes
1answer
41 views

How to manage load on OpenVpn server

How to manage the data transfer between two clients such that the clients can communicate peer to peer and load from the openvpn server can be minimized. By default when the clients communicates with ...
3
votes
2answers
88 views

Effect of distance on transfer speed (increases over time)

I'm in Europe and I'm running a web site in the Unites States. The service provider where the site is hosted offers large up/down bandwith (at good prices). The server now have very low load (on ...
26
votes
7answers
2k views

What's the maximum theoretical data transfer throughput of NTFS?

Recently I was at a local user group meeting where the presenter noted that the maximum throughput of the NTFS IO stack was 1 GBps. He substantiated his claim by simultaneously copying two large files ...
0
votes
0answers
29 views

Transport Large Directory Structure to AWS EC2

I need to transport just less than 6 TB of data from one Windows Server 2008 R2 (located locally) to a second instance on a customer AWS EC2 instance. The customer configuration does not allow Device ...
5
votes
1answer
232 views

Are network switch data transfer speed limits per port or per device?

Sorry in advance for the newbie question! When network switches report speeds of say 100 Mbit or 1 Gbit, are they referring to the maximum speed per Ethernet port or is this the physical limit of the ...
0
votes
2answers
79 views

Safely transfer files from pc with internet connection to lan without allowing any other form of communication

In the company that I work there are computers that are connected to the Internet and computers that are connected to a Local Area Network. The LAN is considered a "safe zone" and the files that ...
1
vote
0answers
28 views

Easiest way to migrate an entire server to a new machine by only having remote access to the machines?

That's a use case: you have two machines NEW and OLD, having root ssh access to both of them. Both of them are running the same distribution of Ubuntu. How can you transfer almost everything with ...
0
votes
1answer
136 views

Fastest way to move a sparsebundle

I've got a +900GB sparsebundle on one HDD that I'm trying to transfer to a NAS. Since the sparsebundle is essentially a folder, I've been using rsync but it's so damn slow! What's the fastest way to ...
2
votes
7answers
343 views

Huge data transfer over closed network

I have requirement to transfer huge data(say more than 10 TB) from one machine to another over a closed network(LAN)! is there any proven methods to do this? i`m thinking over FTP? is this a right ...
1
vote
2answers
460 views

How do I measure data transfer across a network interface related to a specifc user?

I have an Ubuntu server and I am interested in measuring how much data is being transferred (both in and out) across a network interface, by a specific user. How do I do it? N.B. I know how to ...
1
vote
1answer
247 views

Periodically run query to transfer data between two SQL Servers

I have two MS SQL Servers, let's call them Source and Destination. I need to bring some data from a database table in Source by making a simple query (a Select and a Sum) and bring the result to a ...
0
votes
3answers
479 views

Is there a fast method for exporting a large table from mysql to postgresql?

I've got a table with around 2.7 million records, 63 fields, and several indexes. I need to be able to get this table from mysql to postgresql quickly (say within an hour). I know mysql can export the ...
0
votes
1answer
633 views

SQL Server - Recovery models and amount of log file disk space needed

I'm tasked to import a database from PROGRESS to SQL Server. I'm about to establish a "Linked Server" using PROGRESS' ODBC driver. I need to go grab all tables and all their contents - some quite ...
4
votes
2answers
443 views

tar and ssh large file

I have running the following command for 5 hours and still going. mysql has gigabytes of data, but how can I make sure that the following command is actually transferring data. Can someone check the ...
1
vote
2answers
2k views

Calculating the maximum number of sectors per track for a hard disk

If you know the media transfer rate of a hard disk, how do you use that information to calculate the maximum number of sectors per track?
5
votes
6answers
427 views

How to transfer a Database on a weekly basis for analysis purposes

Just wondering what kind of processes you guys have for transferring production data offsite for analysis purposes? I have read some of the literature but I am not sure of the overheads involved and ...