[DRBD-user] initial formatting of /dev/drbd0 device (with internal metadata)
hbbolen at yahoo.com
Tue Mar 22 16:36:41 CET 2005
If I want to setup drbd on a blank disk, do I need to compute
the size of the partition ( or does the drbd drive do this for
Say I have a 1 GB partition on moe's /dev/sda1, and something similar
on larrys /dev/sdb1.
When I initially format moe's drive, can I just
mke2fs -j /dev/sda1
or do something like
mke2fs -j /dev/sda1 <nnnn>
where n = ( 1G - 128 M) / 4096
( 1024^3 - 128*1024^2) / 4096
( 1073741824 - 134217728) / 4096
alternatively, If I have an existing file system,
I can use
resize2fs /dev/sda1 <nnnn>
Where <nnnn> is computed the same as above?
Where do I find the initial size of the partition? df
gives me one number ( in 1k blocks), and fdisk gives me another
In fact, dump2efs give me a third number.
here's my numbers for my real hdisk ( not the example I gave above):
df -> 15480832 ( 1K blocks) => 15480832
fdisk -> 15727635 => 15727635
dumpe2fs -> 3931908 ( 4k blocks) => 15727632
What is the correct way to determine these numbers?
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