Re: [zfs-discuss] corruption of ZFS on iScsi storage

2010-03-15 Thread Ross Walker
On Mar 15, 2010, at 11:10 PM, Tim Cook wrote: On Mon, Mar 15, 2010 at 9:10 PM, Ross Walker wrote: On Mar 15, 2010, at 7:11 PM, Tonmaus wrote: Being an iscsi target, this volume was mounted as a single iscsi disk from the solaris host, and prepared as a zfs pool consisting of this single

Re: [zfs-discuss] corruption of ZFS on iScsi storage

2010-03-15 Thread Tim Cook
On Mon, Mar 15, 2010 at 9:10 PM, Ross Walker wrote: > On Mar 15, 2010, at 7:11 PM, Tonmaus wrote: > > Being an iscsi >>> target, this volume was mounted as a single iscsi >>> disk from the solaris host, and prepared as a zfs >>> pool consisting of this single iscsi target. ZFS best >>> practice

Re: [zfs-discuss] corruption of ZFS on iScsi storage

2010-03-15 Thread Ross Walker
On Mar 15, 2010, at 7:11 PM, Tonmaus wrote: Being an iscsi target, this volume was mounted as a single iscsi disk from the solaris host, and prepared as a zfs pool consisting of this single iscsi target. ZFS best practices, tell me that to be safe in case of corruption, pools should always be m

Re: [zfs-discuss] corruption of ZFS on iScsi storage

2010-03-15 Thread Tim Cook
On Mon, Mar 15, 2010 at 9:55 AM, Gabriele Bulfon wrote: > Hello, > I'd like to check for any guidance about using zfs on iscsi storage > appliances. > Recently I had an unlucky situation with an unlucky storage machine > freezing. > Once the storage was up again (rebooted) all other iscsi clients

Re: [zfs-discuss] corruption of ZFS on iScsi storage

2010-03-15 Thread Tonmaus
> Being an iscsi > target, this volume was mounted as a single iscsi > disk from the solaris host, and prepared as a zfs > pool consisting of this single iscsi target. ZFS best > practices, tell me that to be safe in case of > corruption, pools should always be mirrors or raidz > on 2 or more disks

Re: [zfs-discuss] corruption of ZFS on iScsi storage

2010-03-15 Thread Ross Walker
On Mar 15, 2010, at 12:19 PM, Ware Adams wrote: On Mar 15, 2010, at 12:13 PM, Gabriele Bulfon wrote: Well, I actually don't know what implementation is inside this legacy machine. This machine is an AMI StoreTrends ITX, but maybe it has been built around IET, don't know. Well, maybe I s

Re: [zfs-discuss] corruption of ZFS on iScsi storage

2010-03-15 Thread Ware Adams
On Mar 15, 2010, at 12:13 PM, Gabriele Bulfon wrote: > Well, I actually don't know what implementation is inside this legacy machine. > This machine is an AMI StoreTrends ITX, but maybe it has been built around > IET, don't know. > Well, maybe I should disable write-back on every zfs host connec

Re: [zfs-discuss] corruption of ZFS on iScsi storage

2010-03-15 Thread Gabriele Bulfon
Well, I actually don't know what implementation is inside this legacy machine. This machine is an AMI StoreTrends ITX, but maybe it has been built around IET, don't know. Well, maybe I should disable write-back on every zfs host connecting on iscsi? How do I check this? Thx Gabriele. -- This mes

Re: [zfs-discuss] corruption of ZFS on iScsi storage

2010-03-15 Thread Ross Walker
On Mar 15, 2010, at 10:55 AM, Gabriele Bulfon wrote: Hello, I'd like to check for any guidance about using zfs on iscsi storage appliances. Recently I had an unlucky situation with an unlucky storage machine freezing. Once the storage was up again (rebooted) all other iscsi clients were

Re: [zfs-discuss] corruption of ZFS on iScsi storage

2010-03-15 Thread Ware Adams
On Mar 15, 2010, at 10:55 AM, Gabriele Bulfon wrote: > - In this case, the storage appliance is a legacy system based on linux, so > raids/mirrors are managed at the storage side its own way. Being an iscsi > target, this volume was mounted as a single iscsi disk from the solaris host, > and p

[zfs-discuss] corruption of ZFS on iScsi storage

2010-03-15 Thread Gabriele Bulfon
Hello, I'd like to check for any guidance about using zfs on iscsi storage appliances. Recently I had an unlucky situation with an unlucky storage machine freezing. Once the storage was up again (rebooted) all other iscsi clients were happy, while one of the iscsi clients (a sun solaris sparc, run