Re: [zfs-discuss] (Fletcher+Verification) versus (Sha256+No Verification)

2011-01-08 Thread Bob Friesenhahn
On Thu, 6 Jan 2011, David Magda wrote: If you're not worried about disk read errors (and/or are not experiencing them), then you shouldn't be worried about has collisions. Except for the little problem that if there is a collision then there will always be a collision for the same data and it

Re: [zfs-discuss] A few questions

2011-01-08 Thread Garrett D'Amore
On 01/ 8/11 10:43 AM, Stephan Budach wrote: Am 08.01.11 18:33, schrieb Edward Ned Harvey: From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss- boun...@opensolaris.org] On Behalf Of Garrett D'Amore When you purchase NexentaStor from a top-tier Nexenta Hardware Partner, you get a produc

[zfs-discuss] pool metadata corrupted - any options?

2011-01-08 Thread David Stein
Running "zpool status -x" gives the results below. Do I have any options besides restoring from tape? David $ zpool status -x pool: home state: FAULTED status: The pool metadata is corrupted and the pool cannot be opened. action: Destroy and re-create the pool from a backup source. see: ht

Re: [zfs-discuss] A few questions

2011-01-08 Thread Stephan Budach
Am 08.01.11 18:33, schrieb Edward Ned Harvey: From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss- boun...@opensolaris.org] On Behalf Of Garrett D'Amore When you purchase NexentaStor from a top-tier Nexenta Hardware Partner, you get a product that has been through a rigorous qualificat

Re: [zfs-discuss] (Fletcher+Verification) versus (Sha256+No Verification)

2011-01-08 Thread Edward Ned Harvey
> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss- > boun...@opensolaris.org] On Behalf Of Robert Milkowski > > What if you you are storing lots of VMDKs? > One corrupted block which is shared among hundreds of VMDKs will affect > all of them. > And it might be a block containing met

Re: [zfs-discuss] A few questions

2011-01-08 Thread Edward Ned Harvey
> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss- > boun...@opensolaris.org] On Behalf Of Garrett D'Amore > > When you purchase NexentaStor from a top-tier Nexenta Hardware Partner, > you get a product that has been through a rigorous qualification process How do I do this, exactly

Re: [zfs-discuss] A few questions

2011-01-08 Thread Fajar A. Nugraha
On Thu, Jan 6, 2011 at 11:36 PM, Garrett D'Amore wrote: > On 01/ 6/11 05:28 AM, Edward Ned Harvey wrote: >> See my point?  Next time I buy a server, I do not have confidence to >> simply expect solaris on dell to work reliably.  The same goes for solaris >> derivatives, and all non-sun hardware.  

Re: [zfs-discuss] A few questions

2011-01-08 Thread Garrett D'Amore
On 01/ 6/11 05:28 AM, Edward Ned Harvey wrote: From: Khushil Dep [mailto:khushil@gmail.com] I've deployed large SAN's on both SuperMicro 825/826/846 and Dell R610/R710's and I've not found any issues so far. I always make a point of installing Intel chipset NIC's on the DELL's and disabling

Re: [zfs-discuss] (Fletcher+Verification) versus (Sha256+No Verification)

2011-01-08 Thread Robert Milkowski
On 01/ 7/11 09:02 PM, Pawel Jakub Dawidek wrote: On Fri, Jan 07, 2011 at 07:33:53PM +, Robert Milkowski wrote: Now what if block B is a meta-data block? Metadata is not deduplicated. Good point but then it depends on a perspective. What if you you are storing lots of VMDKs? One corrupte