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RE: [Linux-cluster] Need help for Clustered NFS



Hi Jacob,

Have I to create a /etc/cluster.conf on the 2nd node and I put the 1st node as preferred node?

Thanks a lot

Haydar

From: <JACOB_LIBERMAN Dell com>
Reply-To: linux clustering <linux-cluster redhat com>
To: <linux-cluster redhat com>
Subject: RE: [Linux-cluster] Need help for Clustered NFS
Date: Wed, 20 Jul 2005 11:44:33 -0500

You need to start the clustering services on the 2nd node so it can join
the cluster. Otherwise it wont be able to access the disk protected by
the cluster services on node1. the cluster service controllers when and
whether the shared disk resources get mounted by a cluster host.

Thanks, jacob

> -----Original Message-----
> From: linux-cluster-bounces redhat com
> [mailto:linux-cluster-bounces redhat com] On Behalf Of haydar Ali
> Sent: Wednesday, July 20, 2005 9:11 AM
> To: linux-cluster redhat com
> Subject: [Linux-cluster] Need help for Clustered NFS
>
> Hi,
>
> I want to setup and configure clustered NFS.
> I have created 2 quorum partitions /dev/sdd2 and /dev/sdd3
> (100MB each) and formatted them
>
> mkfs -t ext2 -b 4096 /dev/sdd2
> mkfs -t ext2 -b 4096 /dev/sdd3
>
> I created another huge partition /dev/sdd4 (over 600GB) and
> formatted it in
> ext3 filesystem.
>
> I installed the cluster suite on the 1st node (RAC1) and I
> started the rawdevices on the two nodes RAC1 and RAC2 (it's OK).
>
> This the hosts file /etc/host on the node1 (RAC1)
>
> # Do not remove the following line, or various programs #
> that require network functionality will fail.
> 127.0.0.1              localhost.localdomain localhost
> #
> # Private hostnames
> #
> 192.168.253.3           rac1.domain.net     rac1
> 192.168.253.4           rac2.domain.net     rac2
> 192.168.253.10          rac1
> #
> # Hostnames used for Interconnect
> #
> 1.1.1.1                 rac1i.domain.net    rac1i
> 1.1.1.2                 rac2i.domain.net    rac2i
> #
> -----------------------
>
>
> I launched the command cluconfig and it generated
> /etc/cluster.conf, you can list its content:
>
> -------------------------------
> This file is automatically generated.  Do not manually edit!
>
> [cluhbd]
>   logLevel = 4
>
> [clupowerd]
>   logLevel = 4
>
> [cluquorumd]
>   logLevel = 4
>
> [cluster]
>   alias_ip = 192.168.253.10
>   name = project
>   timestamp = 1121804245
>
> [clusvcmgrd]
>   logLevel = 4
>
> [database]
>   version = 2.0
>
> [members]
> start member0
> start chan0
>   name = rac1
>   type = net
> end chan0
>   id = 0
>   name = rac1
>   powerSwitchIPaddr = rac1
>   powerSwitchPortName = unused
>   quorumPartitionPrimary = /dev/raw/raw1
>   quorumPartitionShadow = /dev/raw/raw2
> end member0
> start member1
> start chan0
>   name = rac2
>   type = net
> end chan0
>   id = 1
>   name = rac2
>   powerSwitchIPaddr = rac2
>   powerSwitchPortName = unused
>   quorumPartitionPrimary = /dev/raw/raw1
>   quorumPartitionShadow = /dev/raw/raw2
> end member1
>
> [powercontrollers]
> start powercontroller0
>   IPaddr = rac1
>   login = unused
>   passwd = unused
>   type = null
> end powercontroller0
> start powercontroller1
>   IPaddr = rac2
>   login = unused
>   passwd = unused
>   type = null
> end powercontroller1
>
> [services]
> start service0
>   checkInterval = 30
> start device0
> start mount
> start NFSexports
> start directory0
> start client0
>   name = rac1
>   options = rw
> end client0
>   name = /u04
> end directory0
> end NFSexports
>   forceUnmount = yes
>   fstype = ext3
>   name = /u04
>   options = rw,nosuid,sync
> end mount
>   name = /dev/sdd4
>   sharename = None
> end device0
>   name = nfs_project
>   preferredNode = rac2
>   relocateOnPreferredNodeBoot = yes
> end service0
> ------------------------------------
>
> I created a NFS share on /u04 using the following command cluadmin
>
> [root rac1 root]# cluadmin
> Wed Jul 20 10:02:20 EDT 2005
>
> You can obtain help by entering help and one of the following
> commands:
>
> cluster     service        clear
> help        apropos        exit
> version         quit
> cluadmin> service show
>   1) state
>   2) config
>   3) services
> service show what? 2
>   0) nfs_project
>   c) cancel
>
> Choose service: 0
> name: nfs_project
> preferred node: rac2
> relocate: yes
> monitor interval: 30
> device 0: /dev/sdd4
>   mount point, device 0: /u04
>   mount fstype, device 0: ext3
>   mount options, device 0: rw,nosuid,sync
>   force unmount, device 0: yes
>   samba share, device 0: None
> NFS export 0: /u04
>   Client 0: rac1, rw
> cluadmin> service show state
> =========================  S e r v i c e   S t a t u s
> ========================
>
>                                          Last
> Monitor  Restart
>   Service        Status   Owner          Transition
> Interval Count
>   -------------- -------- -------------- ----------------
> -------- -------
>   nfs_project       started  rac1        16:21:23 Jul 19  30       1
> cluadmin>
>
>
> And when I launched clustat, I expected this error message:
>
> clustat
> Cluster Status Monitor (Fileserver Test Cluster)
> 07:46:05
> Cluster alias: rac1
>
> ===================== M e m b e r   S t a t u s ================
>   Member         Status     Node Id    Power Switch
>   -------------- ---------- ---------- ------------
>   rac1           Up         0          Good
>   rac2           Down    1          Unknown
>
> =================== H e a r t b e a t   S t a t u s ===============
>   Name                           Type       Status
>   ------------------------------ ---------- ------------
>   rac1         <--> rac2         network    OFFLINE
>
> =================== S e r v i c e   S t a t u s ==================
>                                   	     Last
> Monitor      Restart
> Service         Status   Owner          Transition    Interval  Count
>
>   ------------- -------- ------------- ---------------- ------------
>   nfs_project          started  rac1          16:07:42 Jul 19
>  30
> 0
>
>
>
> And when I launched this command on RAC2:
> mount -t nfs rac1:/u04 /u04
> It list the following error message :
> Mount: rac1:/u04 failed, reason given by server: Permission denied
>
> Can someone help me to fix this problem in this configuration?
>
> Thanks
>
> Cheers!
>
> Haydar
>
>
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>

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