Re: [Moosefs-users] Is it possible to make separate mfs-mount points on different sets of hdd drives?

[Jun C. P. <jun...@gm...>]

Thanks for the comment.

Somehow my question seems not clear enough to get some help. Please,
let me clarify what I want. First of all, I am using mfs-1.6.15-2.

> mfsmount [-h master] [-p port] [-l path] [-w mount-point]

I think that the right command manual would be the following (the
current manual on mfsmount has conflicting guides). There is no -l
path option in mfsmount in my version.

mfsmount mountpoint [-d] [-f] [-s] [-m] [-n] [-p] [-H MASTER] [-P
PORT] [-S PATH] [-o OPT[,OPT...]]

Now let me describe what I want in detail. For example, suppose that I
have the following mfs-mount point using "mfsmount -H 10.1.2.22  -o
suid -o dev -o rw -o exec /mnt/mfs."

# cat /etc/mfs/mfshdd.cfg
/home/mfs-rdvol1
/home/mfs-rdvol2

# cat /etc/mfs/mfsexports.cfg
10.1.2.23-10.1.2.25	/home/mfs_rdvol1	rw,alldirs,maproot=nobody,password=test1
10.1.2.23-10.1.2.25	/home/mfs_rdvol2	rw,alldirs,maproot=nobody,password=test1

# df -h | grep mfs
mfs#10.1.2.22:9421     24T  399G   24T   2% /mnt/mfs

However, I want to let /mnt/mfs points out only to /home/mfs-rdvol1
while /mnt/mfs2 uses /home/mfs-rdvol2, illustrated below as an
example.

# df -h | grep mfs
mfs#10.1.2.22:9421     24T  399G   24T   2% /mnt/mfs
mfs#10.1.2.22:??         10T     1T   10T   10% /mnt/mfs2

However, I got the following error when I tried to add a separate mount point:

# mfsmount /mnt/mfs2 -H 10.1.2.22 -S /home/mfs-rdvol2 -o suid -o dev
-o rw -o exec
mfsmaster register error: No such file or directory

How can I get a separate mfs-mount point (/mnt/mfs2) that sits on a
different set of hdd drives?

-Jun