Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Hello Everyone,
I always stuggle with linux paritions, and I am hoping you guys can
help e with this.
Following a few howtos to get wind of it all, on fresh installations I have:
/boot
/
/swap
/drbd -> /dev/sda7
/service -> /dev/sda8
fstab
proc /proc
proc defaults 0 0
/ ext3 errors=remount-ro 0 1
/boot ext3 defaults 0 2
/drbd ext3 defaults 0 2
/service ext3 noauto 0 0
none swap sw 0 0
/dev/scd0 /media/cdrom0 udf,iso9660 user,noauto 0 0
mtab
/dev/sda5 / ext3 rw,errors=remount-ro 0 0
tmpfs /lib/init/rw tmpfs rw,nosuid,mode=0755 0 0
proc /proc proc rw,noexec,nosuid,nodev 0 0
sysfs /sys sysfs rw,noexec,nosuid,nodev 0 0
udev /dev tmpfs rw,mode=0755 0 0
tmpfs /dev/shm tmpfs rw,nosuid,nodev 0 0
devpts /dev/pts devpts rw,noexec,nosuid,gid=5,mode=620 0 0
/dev/sda1 /boot ext3 rw 0 0
resource r0.res {
on mydrbd1 {
device /dev/drbd0;
disk /dev/sda8;
address 192.168.2.105:7789;
meta-disk /dev/sda7 [0];
}
on mydrbd2 {
device /dev/drbd0;
disk /dev/sda8;
address 192.168.2.106:7789;
meta-disk /dev/sda7 [0];
}
}
1) I created sda7 for meta disk, and sda8 as the disk that needs to be
replicated.
2) I had, and still having trouble with /dev/drbd0, where did this
little fellow come from? I was kind of taken by surprise
After switching the primary role from mydrbd1 to mydrbd2 and vice
versa, I was able to partition the drive on both nodes.
This was not documented anywhere. The partition is 46936 1K blocks.
I see that there is meta data information created in /dev/drbd I am
not sure where this partition came from either.
Grinidng forward. One of the nodes are mounted to /service the other
one is read only. Makes sense ext3... But still no replication
root at mydrbd2:/service# /etc/init.d/drbd status
drbd driver loaded OK; device status:
version: 8.3.7 (api:88/proto:86-91)
srcversion: EE47D8BF18AC166BE219757
m:res cs ro ds p mounted fstype
0:r0_res Connected Primary/Secondary UpToDate/UpToDate C /service ext3
version: 8.3.7 (api:88/proto:86-91)
srcversion: EE47D8BF18AC166BE219757
0: cs:Connected ro:Primary/Secondary ds:UpToDate/UpToDate C r----
ns:103660 nr:2473108 dw:2576768 dr:429 al:37 bm:145 lo:0 pe:0 ua:0
ap:0 ep:1 wo:b oos:0
Can some give me the bigger picture here please?
Cheers,
Nicholas.