[sam-qfs-discuss] shared fs in cluster env

[Ted Pogue]

See Release Notes:
http://docs.sun.com/source/819-7938-10/index.html#35629

Under Chapter 6 of the Admin Guide:
http://docs.sun.com/source/819-7935-10/chapter6.html#94364

Also, quorum device should be using one of the mm devices.
MM and MR devices "HAVE" to be on physically different LUNS.

Ted
skuns at li.ru wrote:
> Hi there. Anybody implemented a shared qfs  with client outside of 
> cluster? I have a trouble with configuration with following.
> I have two external target, one is metadevice target and second a data 
> target. It is marked as mm and mr in mcf file. I have configured up and 
> running sun cluster 3.2 with two nodes. Metadevice marked as quourum 
> devie too.
> And about 6 servers, that not a cluster member and have a data target 
> only in his mcf file. So, the problem occured when one from two nodes if 
> going down. Alive node, preserve all device (meta and data) by  fencing 
> mechanics, and this prevent access to data target from client nodes. 
> They are log an 'OS call error, resevration conflict', that causing an 
> shared fs to stop working. I am not found any special configuration in 
> qfs or cluster guide, and have and manual edited did_instances file with 
> data target removed. After correcting checksum, cluster looks fully 
> operational, except of data target 'fail' in cldevice status output, and 
> small trouble with did device management. Anybody know right way to 
> prevent shared device reservation?
>
> vlad f halilov
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