Re: [zfs-discuss] ZFS on Hitachi SAN, pool recovery

2008-09-25 Thread Richard Elling
Richard Elling wrote: > Tim Haley wrote: >> Vincent Fox wrote: >> >>> Just make SURE the other host is actually truly DEAD! >>> >>> If for some reason it's simply wedged, or you have lost console >>> access but the hostA is still "live", then you can end up with 2 >>> systems having access to s

Re: [zfs-discuss] ZFS on Hitachi SAN, pool recovery

2008-09-24 Thread alan baldwin
Good question. Well, the hosts are Netbackup Media servers. The idea behind the design is that we stream the RMAN stuff to disk, via NFS mounts, and then write to tape during the day. With the SAN attached disks sitting on these hosts and with disk storage units configured for NBU the data strea

Re: [zfs-discuss] ZFS on Hitachi SAN, pool recovery

2008-09-24 Thread Marcelo Leal
Just curiosity, why don“t use SC? Leal. -- This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss

Re: [zfs-discuss] ZFS on Hitachi SAN, pool recovery

2008-09-24 Thread alan baldwin
Thanks to all for your comments and sharing your experiences. In my setup the pools are split and then NFS mounted to other nodes, mostly Oracle DB boxes. These mounts will provide areas for RMAN Flash backups to be written. If I lose connectivity to any host I will swing the luns over to the al

Re: [zfs-discuss] ZFS on Hitachi SAN, pool recovery

2008-09-23 Thread Richard Elling
Tim Haley wrote: > Vincent Fox wrote: > >> Just make SURE the other host is actually truly DEAD! >> >> If for some reason it's simply wedged, or you have lost console access but >> the hostA is still "live", then you can end up with 2 systems having access >> to same ZFS pool. >> >> I have don

Re: [zfs-discuss] ZFS on Hitachi SAN, pool recovery

2008-09-23 Thread Tim Haley
Vincent Fox wrote: > Just make SURE the other host is actually truly DEAD! > > If for some reason it's simply wedged, or you have lost console access but > the hostA is still "live", then you can end up with 2 systems having access > to same ZFS pool. > > I have done this in test, 2 hosts acces

Re: [zfs-discuss] ZFS on Hitachi SAN, pool recovery

2008-09-23 Thread Vincent Fox
Just make SURE the other host is actually truly DEAD! If for some reason it's simply wedged, or you have lost console access but the hostA is still "live", then you can end up with 2 systems having access to same ZFS pool. I have done this in test, 2 hosts accessing same pool, and the result is