[Lustre-discuss] howto make a lvm, or virtual lvm?
Eudes PHILIPPE
eudes at cisneo.fr
Wed Dec 15 09:06:17 PST 2010
Hello
I’m newbie on lustre ☺
Currently, i make some test on virtual machines.
I’ve:
- Server mds1 for mdt mgs
- Server ost1 for data, with 2 drives 1Go (for test, it's some virtual machines)
- Server client to mount mds
On server mds1
/dev/sda3 93G 461M 87G 1% /mds
On server ost1
/dev/sdc 1008M 64M 967M 2% /home/ost2
/dev/sdb 1008M 957M 68K 100% /home/ost1
(
Or
On server ost1
/dev/sdb 1008M 957M 68K 100% /home/ost1
On server ost2
/dev/sdb 1008M 64M 967M 2% /home/ost2
}
On client
192.168.45.20 at tcp0:/large-fs 2,0G 1,3G 629M 68% /home
At the end, I want (if it's possible), a raid 5 over Ethernet, or, 1 physical raid 5 on each ostX and a big lvm I can extend as I want....
For my first test, I upload on client a file (1.8 Go) (each ost have 1 Go)
The problem, is, when sdb is full, he stop the copy, and don't continue on ost2
Maybe I must create a lvm, but I don't found howto to (maybe it's possible to create lvm without format when I add others ost later..)
Questions:
- it's the good way?
- How I can write a 1.8Go (one file) on the 2 os, one part on ost1, one and final part on ost2
Regards
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