Mailing List Archive: Quizz : Time to sync ?

Hi,

On Tue, 6 Jun 2000, Thomas Mangin wrote:
) Does anyone have a idea of the time needed to REPL 10 Gigabytes
)
) If I consider this size on kb 1024*1024*1024 and the fact that a block is
) normaly
) one kb (or 4 if you want) on ext2 I have more or less between
) 25 000 000 and 1 000 000 000 block to write ..

ok, 10GB == 10 * 1024 * 1024 * 1024. A drbd block is 4K, so you have:

number of blocks to send = 10 * 1024 * 1024 * 1024 / 4 * 1024

you easily see that:

number of blocks to send = 10 * 256 * 1024 (cut a 1024 and avoid dividing
10 by 4 when you have another factor that divides better :).

So number of blocks to send = 2.621.440

Go get some coffee and wait... :)

( Fábio Olivé Leite -* ConectivaLinux *- olive@example.com[.br] )
( PPGC/UFRGS MSc candidate -*- Advisor: Taisy Silva Weber )
( Linux - Distributed Systems - Fault Tolerance - Security - /etc )