NFS and AutoFS - a how to question

2010-08-04 Thread Lionel Dyck
Here is a scenario that I was just asked about: NFS Server A exports /data NFS Server B exports /data Several client servers mount /data The questions are: How to keep NFS Server A and B in sync On the client servers, if NFS Server A is down, how to mount /data from NFS Server B (and vice

Re: NFS and AutoFS - a how to question

2010-08-04 Thread Mark Post
On 8/4/2010 at 04:30 PM, Lionel Dyck ld...@us.ibm.com wrote: Here is a scenario that I was just asked about: NFS Server A exports /data NFS Server B exports /data Several client servers mount /data The questions are: How to keep NFS Server A and B in sync On the client servers, if

Re: NFS and AutoFS - a how to question

2010-08-04 Thread Lionel Dyck
One other point - the two NFS Servers are on different CEC's/LPARs for availability and the storage may not be share-able . but yes - it is an HA cluster Thanks Lionel Lionel B. Dyck z/Linux Specialist IBM Corporation Global Technology Services - Kaiser Account Work: 925-926-5332 E-Mail:

Re: NFS and AutoFS - a how to question

2010-08-04 Thread Mark Post
On 8/4/2010 at 04:45 PM, Lionel Dyck ld...@us.ibm.com wrote: One other point - the two NFS Servers are on different CEC's/LPARs for availability and the storage may not be share-able . iSCSI will make it shareable. Mark Post

Re: NFS and AutoFS - a how to question

2010-08-04 Thread Lionel Dyck
Another point - the dasd is all mainframe (eckd) dasd :-) Thanks Lionel B. Dyck z/Linux Specialist IBM Corporation Global Technology Services - Kaiser Account Work: 925-926-5332 E-Mail: ld...@us.ibm.com AIM: lbdyck | Yahoo IM: lbdyck | GTalk: lbdyck From: Mark Post mp...@novell.com To:

Re: NFS and AutoFS - a how to question

2010-08-04 Thread Mark Post
On 8/4/2010 at 05:00 PM, Lionel Dyck ld...@us.ibm.com wrote: Another point - the dasd is all mainframe (eckd) dasd :-) Doesn't matter. iSCSI doesn't really care what the underlying architecture is, so long as it's a block device. Mark Post

Re: NFS and AutoFS - a how to question

2010-08-04 Thread Marcy Cortes
ECKD shop here... Nothing wrong with that - Where are your 2 lpars? Why can't they share? If you do not have physical access to both, you will need to replicate it over a network. What that network is depends... You can send it over an IP with DRBD. You can replicate it with HW with PPRC. I