Re: [zfs-discuss] ZFS and dual-pathed A5200

2006-10-20 Thread Richard Elling - PAE
Victor Latushkin wrote: The next natural question is Richard Elling - PAE wrote: Isn't this in a FAQ somewhere? IIRC, if ZFS finds a disk via two paths, then it will pick one. Will it (try to) failover to another one if picked one fails? No, not automatically. MPXIO provides automatic path

Re: [zfs-discuss] ZFS and dual-pathed A5200

2006-10-20 Thread Bill Sommerfeld
On Thu, 2006-10-19 at 08:09 +0800, Hong Wei Liam wrote: > I understand that ZFS leaves multipathing to MPXIO or the like. For a > combination of dual-path A5200 with QLGC2100 HBAs ... I'd actually not bother with multipathing A5200's for ZFS I have a pair of A5200's which I'm using with zfs. I

Re: [zfs-discuss] ZFS and dual-pathed A5200

2006-10-20 Thread Victor Latushkin
The next natural question is Richard Elling - PAE wrote: Isn't this in a FAQ somewhere? IIRC, if ZFS finds a disk via two paths, then it will pick one. Will it (try to) failover to another one if picked one fails? Wbr, Victor -- richard Torrey McMahon wrote: Robert Milkowski wrote: This

Re: [zfs-discuss] ZFS and dual-pathed A5200

2006-10-20 Thread Richard Elling - PAE
Isn't this in a FAQ somewhere? IIRC, if ZFS finds a disk via two paths, then it will pick one. -- richard Torrey McMahon wrote: Robert Milkowski wrote: This of course does work. I guess the real question was what will happen if you now export your pool, then disable mpxio so you will see the

Re: Re[2]: [zfs-discuss] ZFS and dual-pathed A5200

2006-10-19 Thread Frank Cusack
On October 20, 2006 1:08:30 AM +0200 Robert Milkowski <[EMAIL PROTECTED]> wrote: This of course does work. I guess the real question was what will happen if you now export your pool, then disable mpxio so you will see the same disk at least twice and now you decide to import that pool. Would it c

Re: [zfs-discuss] ZFS and dual-pathed A5200

2006-10-19 Thread Torrey McMahon
Robert Milkowski wrote: This of course does work. I guess the real question was what will happen if you now export your pool, then disable mpxio so you will see the same disk at least twice and now you decide to import that pool. Would it confuse ZFS? That's what I was getting at. The origi

Re[2]: [zfs-discuss] ZFS and dual-pathed A5200

2006-10-19 Thread Robert Milkowski
Hello Frank, Thursday, October 19, 2006, 10:44:04 PM, you wrote: FC> On October 19, 2006 4:26:59 PM -0400 Torrey McMahon FC> <[EMAIL PROTECTED]> wrote: >> Do you have any multipathing enabled? FC> rewind ... >> >> Frank Cusack wrote: >>> I don't have any problems with a dual attached 3511 usin

Re: [zfs-discuss] ZFS and dual-pathed A5200

2006-10-19 Thread Frank Cusack
On October 19, 2006 4:26:59 PM -0400 Torrey McMahon <[EMAIL PROTECTED]> wrote: Do you have any multipathing enabled? rewind ... Frank Cusack wrote: I don't have any problems with a dual attached 3511 using qle2462 cards and mpxio. Not sure if that was the question or not. :-) yes, mpxio.

Re: [zfs-discuss] ZFS and dual-pathed A5200

2006-10-19 Thread Torrey McMahon
Do you have any multipathing enabled? Frank Cusack wrote: I don't have any problems with a dual attached 3511 using qle2462 cards and mpxio. Not sure if that was the question or not. :-) On October 19, 2006 3:46:55 PM -0400 Torrey McMahon <[EMAIL PROTECTED]> wrote: Try it and let us know. :)

Re: [zfs-discuss] ZFS and dual-pathed A5200

2006-10-19 Thread Frank Cusack
I don't have any problems with a dual attached 3511 using qle2462 cards and mpxio. Not sure if that was the question or not. :-) On October 19, 2006 3:46:55 PM -0400 Torrey McMahon <[EMAIL PROTECTED]> wrote: Try it and let us know. :) Seriously - Ya got me. It, along with the rest of the stac

Re: [zfs-discuss] ZFS and dual-pathed A5200

2006-10-19 Thread Torrey McMahon
Try it and let us know. :) Seriously - Ya got me. It, along with the rest of the stack, would see multiple drives. However, I'm not sure how the ZFS pool id, detection, and the like would come into play. Hong Wei Liam wrote: Hi, I understand that ZFS leaves multipathing to MPXIO or the like

[zfs-discuss] ZFS and dual-pathed A5200

2006-10-18 Thread Hong Wei Liam
Hi, I understand that ZFS leaves multipathing to MPXIO or the like. For a combination of dual-path A5200 with QLGC2100 HBAs (non-leadville stack), how would ZFS react in seeing this ? WL ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http: