■Reference http://wiki.linux-nfs.org/wiki/index.php/Configuring_pNFS/spnfsd http://osdir.com/ml/general/2010-05/msg10129.html ■My environment kernel-2.6.32.11-107.2.3.pnfs.fc12.x86_64.rpm kernel-devel-2.6.32.11-107.2.3.pnfs.fc12.x86_64.rpm kernel-firmware-2.6.32.11-107.2.3.pnfs.fc12.noarch.rpm kernel-headers-2.6.32.11-107.2.3.pnfs.fc12.x86_64.rpm nfs-utils-1.2.2-4.1.pnfs.x86_64.rpm MDS: 192.168.1.60 DS: 192.168.1.45 Client: 192.168.1.62 ( created on the KVM's virtual machine on the MDS ) ■/etc/exports - MDS's / *(rw,sync,pnfs,fsid=0,insecure,no_subtree_check,no_root_squash) - DS's / *(rw,sync,fsid=0,insecure,no_subtree_check,pnfs,no_root_squash) ■/etc/fstab - MDS's UUID=52ab88e8-5d93-440c-af45-0a85923898ec / ext4 defaults 1 1 UUID=90d25a9c-54b4-4db4-979a-26ea0d67fe60 swap swap defaults 0 0 tmpfs /dev/shm tmpfs defaults 0 0 devpts /dev/pts devpts gid=5,mode=620 0 0 sysfs /sys sysfs defaults 0 0 proc /proc proc defaults 0 0 192.168.1.45:/pnfs /spnfs/192.168.1.45 nfs4 minorversion=1 0 0 ■/etc/spnfsd.conf of the MDS [General] Verbosity = 1 Stripe-size = 8192 Dense-striping = 0 Pipefs-Directory = /var/lib/nfs/rpc_pipefs DS-Mount-Directory = /spnfs [DataServers] NumDS = 1 DS1_IP = 192.168.1.45 DS1_PORT = 2049 DS1_ROOT = /pnfs DS1_ID = 1 ■Preparation nad Assumption -The NFS related ports has opened and has confirmed - on the DS $mkdir /pnfs - on the MDS $mkdir /spnfs $mkdir /spnfs/192.168.1.45 $reboot $touch /spnfs/192.168.1.45/test <- write succeeded to the DS's /spnfs The MDS has mounted the exported directory of DS and able to read and write. The MDS's /proc/self/mountstats includes lines that means the PNFS has turned on like below PNFS_LAYOUTGET: 0 0 0 0 0 0 0 0 PNFS_LAYOUTCOMMIT: 0 0 0 0 0 0 0 0 PNFS_LAYOUTRETURN: 0 0 0 0 0 0 0 0 PNFS_GETDEVICELIST: 0 0 0 0 0 0 0 0 PNFS_GETDEVICEINFO: 0 0 0 0 0 0 0 0 PNFS_WRITE: 0 0 0 0 0 0 0 0 PNFS_COMMIT: 0 0 0 0 0 0 0 0 ■issue - on the client $mkdir /mnt/pnfs $modprobe nfslayoutdriver;modprobe blocklayoutdriver $mount -t nfs4 -o minorversion=1 192.168.1.60:/ /mnt/pnfs <- SUCCEEDED $echo "heeeeeeeeeeeeeeeey" >> /mnt/pnfs/hello.txt <- has not been wrote to the DS but has been worte under / of the MDS. -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
