Re: [zfs-discuss] ZFS failover without multipathing

2006-12-07 Thread Richard Elling
Luke Schwab wrote: Hi, I am running Solaris 10 ZFS and I do not have STMS multipathing enables. I have dual FC connections to storage using two ports on an Emulex HBA. In the Solaris ZFS admin guide. It says that a ZFS file system monitors disks by their path and their device ID. If a disk is

Re: [zfs-discuss] ZFS failover without multipathing

2006-12-06 Thread Jason J. W. Williams
Hi Luke, That's really strange. We did the exact same thing moving between two hosts (export/import) and it took maybe 10 secs. How big is your zpool? Best Regards, Jason On 12/6/06, Luke Schwab <[EMAIL PROTECTED]> wrote: Doug, I should have posted the reason behind this posting. I have 2 v2

Re: [zfs-discuss] ZFS failover without multipathing

2006-12-06 Thread Jason J. W. Williams
Hi Doug, Actually, our config is: 3 RAID-5 volume groups on the array (with 2 LUNs each). 1 RAID-Z zpool per physical host composed of one LUN from each of the 3 volume groups. This allows for loss of 3 drives in a worst case, and 4 drives in a best case. -J On 12/6/06, Douglas Denny <[EMAIL

Re: [zfs-discuss] ZFS failover without multipathing

2006-12-06 Thread Douglas Denny
On 12/6/06, Jason J. W. Williams <[EMAIL PROTECTED]> wrote: The configuration is a T2000 connected to a StorageTek FLX210 array via Qlogic QLA2342 HBAs and Brocade 3850 switches. We currently RAID-Z the LUNs across 3 array volume groups. For performance reasons we're in the process of changing to

Re: [zfs-discuss] ZFS failover without multipathing

2006-12-06 Thread Jason J. W. Williams
Hi Doug, The configuration is a T2000 connected to a StorageTek FLX210 array via Qlogic QLA2342 HBAs and Brocade 3850 switches. We currently RAID-Z the LUNs across 3 array volume groups. For performance reasons we're in the process of changing to striped zpools across RAID-1 volume groups. The pe

Re: [zfs-discuss] ZFS failover without multipathing

2006-12-06 Thread Douglas Denny
On 12/6/06, Jason J. W. Williams <[EMAIL PROTECTED]> wrote: We've been using MPXIO (STMS) with ZFS quite solidly for the past few months. Failover is instantaneous when a write operations occurs after a path is pulled. Our environment is similar to yours, dual-FC ports on the host, and 4 FC port

Re: [zfs-discuss] ZFS failover without multipathing

2006-12-06 Thread Jason J. W. Williams
Hi Luke, We've been using MPXIO (STMS) with ZFS quite solidly for the past few months. Failover is instantaneous when a write operations occurs after a path is pulled. Our environment is similar to yours, dual-FC ports on the host, and 4 FC ports on the storage (2 per controller). Depending on y

[zfs-discuss] ZFS failover without multipathing

2006-12-06 Thread Luke Schwab
Hi, I am running Solaris 10 ZFS and I do not have STMS multipathing enables. I have dual FC connections to storage using two ports on an Emulex HBA. In the Solaris ZFS admin guide. It says that a ZFS file system monitors disks by their path and their device ID. If a disk is switched between co