Re: Redundant/failover NFS servers - stale NFS file handle

2006-08-18 Thread Bill Vermillion
While humming that old rock song Yackety Yacc - Dont Awk Back Oliver Fromme on Fri, Aug 18, 2006 at 11:14 sang or SED something like this: > Attila Nagy wrote: > > Oliver Fromme wrote: > > > We use NetApp Filer clusters (NAS) for that purpose. > > > They aren't cheap, but they work very well. >

Re: Redundant/failover NFS servers - stale NFS file handle

2006-08-18 Thread Oliver Fromme
Attila Nagy wrote: > Oliver Fromme wrote: > > We use NetApp Filer clusters (NAS) for that purpose. > > They aren't cheap, but they work very well. > > I don't like blackboxes with nice GUIs. :) But they do exactly what you need. I doubt that you can build the same functionality with Linux.

Re: Redundant/failover NFS servers - stale NFS file handle

2006-08-15 Thread Chuck Swiger
On Aug 15, 2006, at 12:37 PM, Brian Candler wrote: I think Solaris also makes a reliable NFS platform, and it even supports failover and replication for read-only mounts. For read/ write replicated filesystems, you're probably looking at AFS (Andrew File System, but an opensource version is at w

Re: Redundant/failover NFS servers - stale NFS file handle

2006-08-15 Thread Brian Candler
On Tue, Aug 15, 2006 at 11:20:47AM -0700, Chuck Swiger wrote: > On Aug 15, 2006, at 5:30 AM, Phil Regnauld wrote: > >Brian Candler (B.Candler) writes: > >>So to make an update, you would have to unmount from box 2, > >>remount RW on > >>box 1, make the change, remount RO on box 1, and mount RO ag

Re: Redundant/failover NFS servers - stale NFS file handle

2006-08-15 Thread Chuck Swiger
On Aug 15, 2006, at 5:30 AM, Phil Regnauld wrote: Brian Candler (B.Candler) writes: So to make an update, you would have to unmount from box 2, remount RW on box 1, make the change, remount RO on box 1, and mount RO again on box 2. To make it short: if you want a reliable NFS head,

Re: Redundant/failover NFS servers - stale NFS file handle

2006-08-15 Thread Attila Nagy
On 08/15/06 16:47, Brian Candler wrote: On Tue, Aug 15, 2006 at 02:44:52PM +0200, Attila Nagy wrote: I can solve this problem with Linux How? With a shared filesystem of course. Specifically, which one? If there is a good filesystem for this application perhaps it could be ported. Any of them

Re: Redundant/failover NFS servers - stale NFS file handle

2006-08-15 Thread Brian Candler
On Tue, Aug 15, 2006 at 02:44:52PM +0200, Attila Nagy wrote: > >>I can solve this problem with Linux > >How? > With a shared filesystem of course. Specifically, which one? If there is a good filesystem for this application perhaps it could be ported. ___

Re: Redundant/failover NFS servers - stale NFS file handle

2006-08-15 Thread Attila Nagy
On 08/15/06 14:25, Brian Candler wrote: On Mon, Aug 14, 2006 at 08:43:28PM +0200, Attila Nagy wrote: We use NetApp Filer clusters (NAS) for that purpose. They aren't cheap, but they work very well. I don't like blackboxes with nice GUIs. :) They have a command-line interface too :) Seriously,

Re: Redundant/failover NFS servers - stale NFS file handle

2006-08-15 Thread Phil Regnauld
Brian Candler (B.Candler) writes: > > So to make an update, you would have to unmount from box 2, remount RW on > box 1, make the change, remount RO on box 1, and mount RO again on box 2. To make it short: if you want a reliable NFS head, you need NetApp. If you want to make failo

Re: Redundant/failover NFS servers - stale NFS file handle

2006-08-15 Thread Brian Candler
On Mon, Aug 14, 2006 at 08:43:28PM +0200, Attila Nagy wrote: > >We use NetApp Filer clusters (NAS) for that purpose. > >They aren't cheap, but they work very well. > I don't like blackboxes with nice GUIs. :) They have a command-line interface too :) Seriously, these are really excellent devices.

Re: Redundant/failover NFS servers - stale NFS file handle

2006-08-14 Thread Attila Nagy
On 2006. 08. 14. 20:43, Attila Nagy wrote: that a little bit hackish. I can solve this problem with Linux, but I would like to do it with FreeBSD, that's why I'm asking. Maybe somebody has a clever idea, which can make it possible on FreeBSD, without the above hassles. BTW, is there a feature,

Re: Redundant/failover NFS servers - stale NFS file handle

2006-08-14 Thread Attila Nagy
On 2006. 08. 14. 17:55, Oliver Fromme wrote: We use NetApp Filer clusters (NAS) for that purpose. They aren't cheap, but they work very well. I don't like blackboxes with nice GUIs. :) NFS file handles are based on the inode number. That means if you want to have a fail-over that's transparen

Re: Redundant/failover NFS servers - stale NFS file handle

2006-08-14 Thread Oliver Fromme
Attila Nagy <[EMAIL PROTECTED]> wrote: > I would like to run diskless clients (they are actually servers) from > FreeBSD, but I don't like having a SPoF at the NFS server level and > don't want to use expensive out of the box solutions, like a NAS with a > SAN behind it. We use NetApp Filer