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 has been

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 mi...@task.gda.pl 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

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 jan-som...@gmx.de To: zfs-discuss@opensolaris.org Subject: Re: [zfs-discuss] HP ProLiant N36L Message-ID:

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

Re: [zfs-discuss] A few questions

2011-01-09 Thread Richard Elling
On Jan 9, 2011, at 4:19 PM, Edward Ned Harvey opensolarisisdeadlongliveopensola...@nedharvey.com 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

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 opensolarisisdeadlongliveopensola...@nedharvey.com wrote: From: Pasi Kärkkäinen [mailto:pa...@iki.fi] Other OS's have had

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

[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

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