Re: [zfs-discuss] Re: Difference between ZFS and UFS with one LUN froma SAN

2006-12-27 Thread Torrey McMahon
A LUN "going away" should not cause a panic. (The obvious exception being the boot LUN) If mpxio saw the LUN move and everything moved ... then it's a bug. The panic backtrace will point to the guilty party in any case. Jason J. W. Williams wrote: Hi Robert, MPxIO had correctly moved the pat

Re: [zfs-discuss] Re: Difference between ZFS and UFS with one LUN froma SAN

2006-12-23 Thread Torrey McMahon
Sounds like a bug. What was the panic message? Jason J. W. Williams wrote: Just for what its worth, when we rebooted a controller in our array (we pre-moved all the LUNs to the other controller), despite using MPXIO ZFS kernel panicked. Verified that all the LUNs were on the correct controller w

Re: [zfs-discuss] Re: Difference between ZFS and UFS with one LUN froma SAN

2006-12-22 Thread Jason J. W. Williams
is.org Subject: Re: [zfs-discuss] Re: Difference between ZFS and UFS with one LUN froma SAN Just for what its worth, when we rebooted a controller in our array (we pre-moved all the LUNs to the other controller), despite using MPXIO ZFS kernel panicked. Verified that all the LUNs were on the correct co

RE: [zfs-discuss] Re: Difference between ZFS and UFS with one LUN froma SAN

2006-12-22 Thread Tim Cook
, December 22, 2006 10:56 AM To: Tim Cook Cc: Shawn Joy; zfs-discuss@opensolaris.org Subject: Re: [zfs-discuss] Re: Difference between ZFS and UFS with one LUN froma SAN Just for what its worth, when we rebooted a controller in our array (we pre-moved all the LUNs to the other controller), despi

Re: [zfs-discuss] Re: Difference between ZFS and UFS with one LUN froma SAN

2006-12-22 Thread Jason J. W. Williams
Just for what its worth, when we rebooted a controller in our array (we pre-moved all the LUNs to the other controller), despite using MPXIO ZFS kernel panicked. Verified that all the LUNs were on the correct controller when this occurred. Its not clear why ZFS thought it lost a LUN but it did. We

Re: [zfs-discuss] Re: Difference between ZFS and UFS with one LUN froma SAN

2006-12-22 Thread Shawn Joy
No, I have not played with this. As I do not have access to my customer site. They have tested this themselves. It is unclear if they implemented this on a MPXIO/SSTM device. I will ask this question. Thanks, Shawn Tim Cook wrote: This may not be the answer you're looking for, but I don't k

RE: [zfs-discuss] Re: Difference between ZFS and UFS with one LUN froma SAN

2006-12-22 Thread Tim Cook
This may not be the answer you're looking for, but I don't know if it's something you've thought of. If you're pulling a LUN from an expensive array, with multiple HBA's in the system, why not run mpxio? If you ARE running mpxio, there shouldn't be an issue with a path dropping. I have the setup