Re: [zfs-discuss] A few questions

2011-01-09 Thread Pasi Kärkkäinen
On Sat, Jan 08, 2011 at 12:33:50PM -0500, Edward Ned Harvey wrote: > > 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

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

2011-01-09 Thread Pawel Jakub Dawidek
On Fri, Jan 07, 2011 at 03:06:26PM -0800, Brandon High wrote: > On Fri, Jan 7, 2011 at 11:33 AM, Robert Milkowski wrote: > > end-up with the block A. Now if B is relatively common in your data set you > > have a relatively big impact on many files because of one corrupted block > > (additionally f

Re: [zfs-discuss] zfs-discuss Digest, Vol 63, Issue 22

2011-01-09 Thread webdawg
I assume you md5 sumed the image? Web.. Orig text: -- Message: 2 Date: Fri, 07 Jan 2011 10:50:55 PST From: Jan Sommer To: zfs-discuss@opensolaris.org Subject: Re: [zfs-discuss] HP ProLiant N36L Message-ID: <565254261.81294426286037.javamail.tweb...@sf-app1> Content-

Re: [zfs-discuss] A few questions

2011-01-09 Thread Edward Ned Harvey
> From: Pasi Kärkkäinen [mailto:pa...@iki.fi] > > Other OS's have had problems with the Broadcom NICs aswell.. Yes. The difference is, when I go to support.dell.com and punch in my service tag, I can download updated firmware and drivers for RHEL that (at least supposedly) solve the problem. I

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

2011-01-09 Thread Edward Ned Harvey
> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss- > boun...@opensolaris.org] On Behalf Of Pawel Jakub Dawidek > > Dedupditto doesn't work exactly that way. You can have at most 3 copies > of your block. Dedupditto minimal value is 100. The first copy is > created on first write, the

Re: [zfs-discuss] Migrating zpool to new drives with 4K Sectors

2011-01-09 Thread Matthew Angelo
Hi Benji, I did take a read of your blog before posting this. But it didn't have the exact answer I was looking for. OS Version is Solaris 10 U9 x86. Your blog was highly informative, but didn't say if you can zfs replace into a 4kb drive - it was more discussing the ability to detect the WD d

Re: [zfs-discuss] A few questions

2011-01-09 Thread Richard Elling
On Jan 9, 2011, at 4:19 PM, Edward Ned Harvey wrote: >> From: Pasi Kärkkäinen [mailto:pa...@iki.fi] >> >> Other OS's have had problems with the Broadcom NICs aswell.. > > Yes. The difference is, when I go to support.dell.com and punch in my > service tag, I can download updated firmware and d

Re: [zfs-discuss] A few questions

2011-01-09 Thread Michael Sullivan
Just to add a bit to this, I just love sweeping generalizations... On 9 Jan 2011, at 19:33 , Richard Elling wrote: > On Jan 9, 2011, at 4:19 PM, Edward Ned Harvey > wrote: > >>> From: Pasi Kärkkäinen [mailto:pa...@iki.fi] >>> >>> Other OS's have had problems with the Broadcom NICs aswell.. >>

Re: [zfs-discuss] A few questions

2011-01-09 Thread Brad Stone
> As for certified systems, It's my understanding that Nexenta themselves don't > "certify" anything.  They have systems which are recommended and supported by > their network of VAR's. The certified solutions listed on Nexenta's website were certified by Nexenta. ___

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

2011-01-09 Thread Peter Taps
Thank you all for your help. I am the OP. I haven't looked at the link that talks about the probability of collision. Intuitively, I still wonder how the chances of collision can be so low. We are reducing a 4K block to just 256 bits. If the chances of collision are so low, *theoretically* it i

[zfs-discuss] How to increase iometer reading?

2011-01-09 Thread Peter Taps
Hello, We are building a zfs-based storage system with generic but high-quality components. We would like to test the new system under various loads. If we find that the iometer reading has started to reduce under certain loads, I am wondering what performance counters we should look for to ide

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

2011-01-09 Thread Eric D. Mudama
On Sun, Jan 9 at 22:54, Peter Taps wrote: Thank you all for your help. I am the OP. I haven't looked at the link that talks about the probability of collision. Intuitively, I still wonder how the chances of collision can be so low. We are reducing a 4K block to just 256 bits. If the chances of

Re: [zfs-discuss] How to increase iometer reading?

2011-01-09 Thread Eric D. Mudama
On Sun, Jan 9 at 23:07, Peter Taps wrote: Hello, We are building a zfs-based storage system with generic but high-quality components. We would like to test the new system under various loads. If we find that the iometer reading has started to reduce under certain loads, I am wondering what perf