Re: [zfs-discuss] Yager on ZFS

2007-12-13 Thread Robert Milkowski
Hello can, Thursday, December 13, 2007, 12:02:56 AM, you wrote: cyg On the other hand, there's always the possibility that someone cyg else learned something useful out of this. And my question about To be honest - there's basically nothing useful in the thread, perhaps except one thing -

Re: [zfs-discuss] Yager on ZFS

2007-12-13 Thread Eric Haycraft
People.. for the n-teenth time, there are only two ways to kill a troll. One involves a woodchipper and the possibility of an unwelcome visit from the FBI, and the other involves ignoring them. Internet Trolls: http://en.wikipedia.org/wiki/Internet_troll http://www.linuxextremist.com/?p=34

Re: [zfs-discuss] Yager on ZFS

2007-12-13 Thread can you guess?
Hello can, Thursday, December 13, 2007, 12:02:56 AM, you wrote: cyg On the other hand, there's always the possibility that someone cyg else learned something useful out of this. And my question about To be honest - there's basically nothing useful in the thread, perhaps except one

Re: [zfs-discuss] Yager on ZFS

2007-12-13 Thread Jim Mauro
Would you two please SHUT THE F$%K UP. Dear God, my kids don't go own like this. Please - let it die already. Thanks very much. /jim can you guess? wrote: Hello can, Thursday, December 13, 2007, 12:02:56 AM, you wrote: cyg On the other hand, there's always the possibility that someone

Re: [zfs-discuss] Yager on ZFS

2007-12-13 Thread can you guess?
Would you two please SHUT THE F$%K UP. Just for future reference, if you're attempting to squelch a public conversation it's often more effective to use private email to do it rather than contribute to the continuance of that public conversation yourself. Have a nice day! - bill This

Re: [zfs-discuss] Yager on ZFS

2007-12-12 Thread can you guess?
(apologies if this gets posted twice - it disappeared the first time, and it's not clear whether that was intentional) Hello can, Tuesday, December 11, 2007, 6:57:43 PM, you wrote: Monday, December 10, 2007, 3:35:27 AM, you wrote: cyg and it made them slower cyg That's the second

Re: [zfs-discuss] Yager on ZFS

2007-12-12 Thread can you guess?
Hello can, Tuesday, December 11, 2007, 6:57:43 PM, you wrote: Monday, December 10, 2007, 3:35:27 AM, you wrote: cyg and it made them slower cyg That's the second time you've claimed that, so you'll really at cyg least have to describe *how* you measured this even if the cyg detailed

Re: [zfs-discuss] Yager on ZFS

2007-12-12 Thread Robert Milkowski
Hello can, I haven't been wasting so much time as in this thread... but from time to time it won't hurt :) More below :) Wednesday, December 12, 2007, 4:46:42 PM, you wrote: Hello Bill, I know, everyone loves their baby... cyg No, you don't know: you just assume that everyone is as biased

Re: [zfs-discuss] Yager on ZFS

2007-12-12 Thread can you guess?
... Bill - I don't think there's a point in continuing that discussion. I think you've finally found something upon which we can agree. I still haven't figured out exactly where on the stupid/intellectually dishonest spectrum you fall (lazy is probably out: you have put some effort in to

Re: [zfs-discuss] Yager on ZFS

2007-12-12 Thread Tim Spriggs
Look, it's obvious this guy talks about himself as if he is the person he is addressing. Please stop taking this personally and feeding the troll. can you guess? wrote: Bill - I don't think there's a point in continuing that discussion. I think you've finally found something upon

Re: [zfs-discuss] Yager on ZFS

2007-12-11 Thread can you guess?
Monday, December 10, 2007, 3:35:27 AM, you wrote: cyg and it made them slower cyg That's the second time you've claimed that, so you'll really at cyg least have to describe *how* you measured this even if the cyg detailed results of those measurements may be lost in the mists of time.

Re: [zfs-discuss] Yager on ZFS

2007-12-11 Thread Robert Milkowski
Hello can, Tuesday, December 11, 2007, 6:57:43 PM, you wrote: Monday, December 10, 2007, 3:35:27 AM, you wrote: cyg and it made them slower cyg That's the second time you've claimed that, so you'll really at cyg least have to describe *how* you measured this even if the cyg detailed

Re: [zfs-discuss] Yager on ZFS

2007-12-11 Thread Toby Thain
On 11-Dec-07, at 9:44 PM, Robert Milkowski wrote: Hello can, ... What some people are also looking for, I guess, is a black-box approach - easy to use GUI on top of Solaris/ZFS/iSCSI/etc. So they don't have to even know it's ZFS or Solaris. Well... Pretty soon OS X will be exactly that -

Re: [zfs-discuss] Yager on ZFS

2007-12-11 Thread Al Hopper
On Tue, 11 Dec 2007, Robert Milkowski wrote: Hello can, Tuesday, December 11, 2007, 6:57:43 PM, you wrote: Monday, December 10, 2007, 3:35:27 AM, you wrote: cyg and it made them slower cyg That's the second time you've claimed that, so you'll really at cyg least have to describe *how*

Re: [zfs-discuss] Yager on ZFS

2007-12-10 Thread Robert Milkowski
Hello can, Monday, December 10, 2007, 3:35:27 AM, you wrote: cyg and it made them slower cyg That's the second time you've claimed that, so you'll really at cyg least have to describe *how* you measured this even if the cyg detailed results of those measurements may be lost in the mists of

Re: [zfs-discuss] Yager on ZFS

2007-12-09 Thread Selim Daoud
grand-dad, why don't you put your immense experience and knowledge to contribute to what is going to be the next and only filesystems in modern operating systems, instead of spending your time asking for specifics and treating everyone of ignorant..at least we will remember you in the after

Re: [zfs-discuss] Yager on ZFS

2007-12-09 Thread David Dyer-Bennet
can you guess? wrote: can you guess? wrote: can you run a database on RMS? As well as you could on must Unix file systems. And you've been able to do so for almost three decades now (whereas features like asynchronous and direct I/O are relative newcomers in the

Re: [zfs-discuss] Yager on ZFS

2007-12-09 Thread can you guess?
... I remember trying to help customers move their applications from TOPS-20 to VMS, back in the early 1980s, and finding that the VMS I/O capabilities were really badly lacking. Funny how that works: when you're not familiar with something, you often mistake your own

Re: [zfs-discuss] Yager on ZFS

2007-12-09 Thread can you guess?
why don't you put your immense experience and knowledge to contribute to what is going to be the next and only filesystems in modern operating systems, Ah - the pungent aroma of teenage fanboy wafts across the Net. ZFS is not nearly good enough to become what you suggest above, nor is it

Re: [zfs-discuss] Yager on ZFS

2007-12-08 Thread can you guess?
from the description here http://www.djesys.com/vms/freevms/mentor/rms.html so who cares here ? RMS is not a filesystem, but more a CAS type of data repository Since David begins his description with the statement RMS stands for Record Management Services. It is the underlying file

Re: [zfs-discuss] Yager on ZFS

2007-12-08 Thread Selim Daoud
from the description here http://www.djesys.com/vms/freevms/mentor/rms.html so who cares here ? RMS is not a filesystem, but more a CAS type of data repository On Dec 8, 2007 7:04 AM, Anton B. Rang [EMAIL PROTECTED] wrote: NOTHING anton listed takes the place of ZFS That's not surprising,

Re: [zfs-discuss] Yager on ZFS

2007-12-08 Thread Selim Daoud
can you run a database on RMS? I guess its not suited we are already trying to get ride of a 15 years old filesystem called wafl, and a 10 years old file system called Centera, so do you thing we are going to consider a 35 years old filesystem now... computer science made a lot of improvement

Re: [zfs-discuss] Yager on ZFS

2007-12-08 Thread can you guess?
can you run a database on RMS? As well as you could on must Unix file systems. And you've been able to do so for almost three decades now (whereas features like asynchronous and direct I/O are relative newcomers in the Unix environment). I guess its not suited And you guess wrong: that's

Re: [zfs-discuss] Yager on ZFS

2007-12-08 Thread David Dyer-Bennet
can you guess? wrote: can you run a database on RMS? As well as you could on must Unix file systems. And you've been able to do so for almost three decades now (whereas features like asynchronous and direct I/O are relative newcomers in the Unix environment). Funny, I remember

Re: [zfs-discuss] Yager on ZFS

2007-12-08 Thread can you guess?
can you guess? wrote: can you run a database on RMS? As well as you could on must Unix file systems. And you've been able to do so for almost three decades now (whereas features like asynchronous and direct I/O are relative newcomers in the Unix environment). nny, I

Re: [zfs-discuss] Yager on ZFS

2007-12-07 Thread Darren J Moffat
I believe the data dedup is also a feature of NTFS. -- Darren J Moffat ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss

Re: [zfs-discuss] Yager on ZFS

2007-12-07 Thread Anton B. Rang
NOTHING anton listed takes the place of ZFS That's not surprising, since I didn't list any file systems. Here's a few file systems, and some of their distinguishing features. None of them do exactly what ZFS does. ZFS doesn't do what they do, either. QFS: Very, very fast. Supports

Re: [zfs-discuss] Yager on ZFS

2007-12-07 Thread can you guess?
You have me at a disadvantage here, because I'm not even a Unix (let alone Solaris and Linux) aficionado. But don't Linux snapshots in conjunction with rsync (leaving aside other possibilities that I've never heard of) provide rather similar capabilities (e.g., incremental backup

Re: [zfs-discuss] Yager on ZFS

2007-12-07 Thread Anton B. Rang
There are a category of errors that are not caused by firmware, or any type of software. The hardware just doesn't write or read the correct bit value this time around. With out a checksum there's no way for the firmware to know, and next time it very well may write or read the correct bit

Re: [zfs-discuss] Yager on ZFS

2007-12-07 Thread Tim Cook
You have me at a disadvantage here, because I'm not even a Unix (let alone Solaris and Linux) aficionado. But don't Linux snapshots in conjunction with rsync (leaving aside other possibilities that I've never heard of) provide rather similar capabilities (e.g., incremental backup or

Re: [zfs-discuss] Yager on ZFS

2007-12-07 Thread can you guess?
Once again, profuse apologies for having taken so long (well over 24 hours by now - though I'm not sure it actually appeared in the forum until a few hours after its timestamp) to respond to this. can you guess? wrote: Primarily its checksumming features, since other open source solutions

Re: [zfs-discuss] Yager on ZFS

2007-12-07 Thread Tim Cook
If you ever progress beyond counting on your fingers you might (with a lot of coaching from someone who actually cares about your intellectual development) be able to follow Anton's recent explanation of this (given that the higher-level overviews which I've provided apparently flew

Re: [zfs-discuss] Yager on ZFS

2007-12-07 Thread can you guess?
So name these mystery alternatives that come anywhere close to the protection, If you ever progress beyond counting on your fingers you might (with a lot of coaching from someone who actually cares about your intellectual development) be able to follow Anton's recent explanation of this

Re: [zfs-discuss] Yager on ZFS

2007-12-07 Thread Wade . Stuart
Darren, Do you happen to have any links for this? I have not seen anything about NTFS and CAS/dedupe besides some of the third party apps/services that just use NTFS as their backing store. Thanks! Wade Stuart Fallon Worldwide P: 612.758.2660 C: 612.877.0385 [EMAIL PROTECTED] wrote on

Re: [zfs-discuss] Yager on ZFS

2007-12-06 Thread Ian Collins
can you guess? wrote: There aren't free alternatives in linux or freebsd that do what zfs does, period. No one said that there were: the real issue is that there's not much reason to care, since the available solutions don't need to be *identical* to offer *comparable* value

Re: [zfs-discuss] Yager on ZFS

2007-12-06 Thread Nicolas Williams
On Wed, Dec 05, 2007 at 09:45:55PM -0800, can you guess? wrote: There aren't free alternatives in linux or freebsd that do what zfs does, period. No one said that there were: the real issue is that there's not much reason to care, since the available solutions don't need to be If you

Re: [zfs-discuss] Yager on ZFS

2007-12-06 Thread Kyle McDonald
can you guess? wrote: There aren't free alternatives in linux or freebsd that do what zfs does, period. No one said that there were: the real issue is that there's not much reason to care, since the available solutions don't need to be *identical* to offer *comparable* value (i.e.,

Re: [zfs-discuss] Yager on ZFS

2007-12-06 Thread Tim Cook
Whoever coined that phrase must've been wrong, it should definitely be By billtodd you've got it. This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org

Re: [zfs-discuss] Yager on ZFS

2007-12-06 Thread Tim Cook
For the same reason he won't respond to Jone, and can't answer the original question. He's not trying to help this list out at all, or come up with any real answers. He's just here to troll. This message posted from opensolaris.org ___

Re: [zfs-discuss] Yager on ZFS

2007-12-06 Thread Tim Cook
As I explained, there are eminently acceptable alternatives to ZFS from any objective standpoint. So name these mystery alternatives that come anywhere close to the protection, functionality, and ease of use that zfs provides. You keep talking about how they exist, yet can't seem to come

Re: [zfs-discuss] Yager on ZFS

2007-12-06 Thread Dick Davies
On Dec 6, 2007 1:13 AM, Bakul Shah [EMAIL PROTECTED] wrote: Note that I don't wish to argue for/against zfs/billtodd but the comment above about no *real* opensource software alternative zfs automating checksumming and simple snapshotting caught my eye. There is an open source alternative

Re: [zfs-discuss] Yager on ZFS

2007-12-06 Thread Wade . Stuart
[EMAIL PROTECTED] wrote on 12/06/2007 09:58:00 AM: On Dec 6, 2007 1:13 AM, Bakul Shah [EMAIL PROTECTED] wrote: Note that I don't wish to argue for/against zfs/billtodd but the comment above about no *real* opensource software alternative zfs automating checksumming and simple

Re: [zfs-discuss] Yager on ZFS

2007-12-06 Thread can you guess?
apologies in advance for prolonging this thread .. Why do you feel any need to? If you were contributing posts as completely devoid of technical content as some of the morons here have recently been submitting I could understand it, but my impression is that the purpose of this forum is to

Re: [zfs-discuss] Yager on ZFS

2007-12-06 Thread can you guess?
can you guess? wrote: There aren't free alternatives in linux or freebsd that do what zfs does, period. No one said that there were: the real issue is that there's not much reason to care, since the available solutions don't need to be *identical* to offer *comparable*

Re: [zfs-discuss] Yager on ZFS

2007-12-06 Thread can you guess?
(Can we declare this thread dead already?) Many have already tried, but it seems to have a great deal of staying power. You, for example, have just contributed to its continued vitality. Others seem to care. *identical* to offer *comparable* value (i.e., they each have different

Re: [zfs-discuss] Yager on ZFS

2007-12-06 Thread Bakul Shah
The 45 byte score is the checksum of the top of the tree, isn't that right? Yes. Plus an optional label. ZFS snapshots and clones save a lot of space, but the 'content-hash == address' trick means you could potentially save much more. Especially if you carry around large files (disk

Re: [zfs-discuss] Yager on ZFS

2007-12-06 Thread Tim Cook
STILL haven't given us a list of these filesystems you say match what zfs does. STILL coming back with long winded responses with no content whatsoever to try to divert the topic at hand. And STILL making incorrect assumptions. This message posted from opensolaris.org

Re: [zfs-discuss] Yager on ZFS

2007-12-06 Thread can you guess?
can you guess? wrote: There aren't free alternatives in linux or freebsd that do what zfs does, period. No one said that there were: the real issue is that there's not much reason to care, since the available solutions don't need to be *identical* to offer *comparable* value

Re: [zfs-discuss] Yager on ZFS

2007-12-05 Thread can you guess?
I suspect ZFS will change that game in the future. In particular for someone doing lots of editing, snapshots can help recover from user error. Ah - so now the rationalization has changed to snapshot support. Unfortunately for ZFS, snapshot support is pretty commonly available

Re: [zfs-discuss] Yager on ZFS

2007-12-05 Thread Stefano Spinucci
On 11/7/07, can you guess? [EMAIL PROTECTED] wrote: As I said in the post to which you responded, I consider ZFS's ease of management to be more important (given that even in high-end installations storage management costs dwarf storage equipment costs) than its real but relatively

Re: [zfs-discuss] Yager on ZFS

2007-12-05 Thread Eric Haycraft
Why are we still feeding this troll? Paid trolls deserve no response and there is no value in continuing this thread. (And no guys, he isn't being paid by NetApp.. think bigger) The troll will continue to try to downplay features of zfs and the community will counter...and on and on. This

Re: [zfs-discuss] Yager on ZFS

2007-12-05 Thread can you guess?
my personal-professional data are important (this is my valuation, and it's an assumption you can't dispute). Nor was I attempting to: I was trying to get you to evaluate ZFS's incremental risk reduction *quantitatively* (and if you actually did so you'd likely be surprised at how little

Re: [zfs-discuss] Yager on ZFS

2007-12-05 Thread Tim Spriggs
trolling can you guess? wrote: he isn't being paid by NetApp.. think bigger O frabjous day! Yet *another* self-professed psychic, but one whose internal voices offer different counsel. While I don't have to be psychic myself to know that they're *all* wrong (that's an

Re: [zfs-discuss] Yager on ZFS

2007-12-05 Thread Toby Thain
On 5-Dec-07, at 4:19 AM, can you guess? wrote: On 11/7/07, can you guess? [EMAIL PROTECTED] wrote: However, ZFS is not the *only* open-source approach which may allow that to happen, so the real question becomes just how it compares with equally inexpensive current and potential

Re: [zfs-discuss] Yager on ZFS

2007-12-05 Thread Toby Thain
On 4-Dec-07, at 9:35 AM, can you guess? wrote: Your response here appears to refer to a different post in this thread. I never said I was a typical consumer. Then it's unclear how your comment related to the material which you quoted (and hence to which it was apparently responding).

Re: [zfs-discuss] Yager on ZFS

2007-12-05 Thread Bakul Shah
I have budget constraints then I can use only user-level storage. until I discovered zfs I used subversion and git, but none of them is designe d to manage gigabytes of data, some to be versioned, some to be unversioned. I can't afford silent data corruption and, if the final response is

Re: [zfs-discuss] Yager on ZFS

2007-12-05 Thread Al Hopper
-discuss@opensolaris.org In-Reply-To: [EMAIL PROTECTED] Subject: Re: [zfs-discuss] Yager on ZFS List-Id: zfs-discuss.opensolaris.org On 11/7/07, can you guess? [EMAIL PROTECTED] wrote: However, ZFS is not the *only* open-source approach which may allow that to happen, so the real

Re: [zfs-discuss] Yager on ZFS

2007-12-05 Thread can you guess?
I was trying to get you to evaluate ZFS's incremental risk reduction *quantitatively* (and if you actually did so you'd likely be surprised at how little difference it makes - at least if you're at all rational about assessing it). ok .. i'll bite since there's no ignore

Re: [zfs-discuss] Yager on ZFS

2007-12-05 Thread Tim Cook
That would require coming up with something solid. Much like his generalization that there's already snapshotting and checksumming that exists for linux. yet when he was called out, he responded with a 20 page rant because there doesn't exist such a solution. It's far easier to condescend

Re: [zfs-discuss] Yager on ZFS

2007-12-05 Thread Jonathan Edwards
On Dec 5, 2007, at 17:50, can you guess? wrote: my personal-professional data are important (this is my valuation, and it's an assumption you can't dispute). Nor was I attempting to: I was trying to get you to evaluate ZFS's incremental risk reduction *quantitatively* (and if you

Re: [zfs-discuss] Yager on ZFS

2007-12-05 Thread can you guess?
he isn't being paid by NetApp.. think bigger O frabjous day! Yet *another* self-professed psychic, but one whose internal voices offer different counsel. While I don't have to be psychic myself to know that they're *all* wrong (that's an advantage of fact-based rather than faith-based

Re: [zfs-discuss] Yager on ZFS

2007-12-05 Thread Al Hopper
On Wed, 5 Dec 2007, Eric Haycraft wrote: [... reformatted ] Why are we still feeding this troll? Paid trolls deserve no response and there is no value in continuing this thread. (And no guys, he isn't being paid by NetApp.. think bigger) The troll will continue to try to downplay

Re: [zfs-discuss] Yager on ZFS

2007-12-05 Thread can you guess?
... Hi bill, only a question: I'm an ex linux user migrated to solaris for zfs and its checksumming; So the question is: do you really need that feature (please quantify that need if you think you do), or do you just like it because it makes you feel all warm and safe?

Re: [zfs-discuss] Yager on ZFS

2007-12-05 Thread Kyle McDonald
can you guess? wrote: Primarily its checksumming features, since other open source solutions support simple disk scrubbing (which given its ability to catch most deteriorating disk sectors before they become unreadable probably has a greater effect on reliability than checksums in any

Re: [zfs-discuss] Yager on ZFS

2007-12-05 Thread can you guess?
On Tue, 4 Dec 2007, Stefano Spinucci wrote: On 11/7/07, can you guess? [EMAIL PROTECTED] wrote: However, ZFS is not the *only* open-source approach which may allow that to happen, so the real question becomes just how it compares with equally inexpensive current and potential

Re: [zfs-discuss] Yager on ZFS

2007-12-05 Thread Al Hopper
On Wed, 5 Dec 2007, can you guess? wrote: snip reformatted . Changing ZFS's approach to snapshots from block-oriented to audit-trail-oriented, in order to pave the way for a journaled rather than shadow-paged approach to transactional consistency (which then makes data

Re: [zfs-discuss] Yager on ZFS

2007-12-05 Thread Al Hopper
On Wed, 5 Dec 2007, Al Hopper wrote: On Wed, 5 Dec 2007, Eric Haycraft wrote: [... reformatted ] Why are we still feeding this troll? Paid trolls deserve no response and there is no value in continuing this thread. (And no guys, he isn't being paid by NetApp.. think bigger) The

Re: [zfs-discuss] Yager on ZFS

2007-12-05 Thread Tim Cook
Literacy has nothing to do with the glaringly obvious BS you keep spewing. Rather than answer a question, which couldn't be answered, because you were full of it, you tried to convince us all he really didn't know what he wanted. The assumption sure made an a$$ out of someone, but you should

Re: [zfs-discuss] Yager on ZFS

2007-12-05 Thread Stefano Spinucci
I have budget constraints then I can use only user-level storage. until I discovered zfs I used subversion and git, but none of them is designe d to manage gigabytes of data, some to be versioned, some to be unversioned. I can't afford silent data corruption and, if the final

Re: [zfs-discuss] Yager on ZFS

2007-12-05 Thread Jonathan Edwards
apologies in advance for prolonging this thread .. i had considered taking this completely offline, but thought of a few people at least who might find this discussion somewhat interesting .. at the least i haven't seen any mention of Merkle trees yet as the nerd in me yearns for On Dec

Re: [zfs-discuss] Yager on ZFS

2007-12-05 Thread Anton B. Rang
what are you terming as ZFS' incremental risk reduction? I'm not Bill, but I'll try to explain. Compare a system using ZFS to one using another file system -- say, UFS, XFS, or ext3. Consider which situations may lead to data loss in each case, and the probability of each such situation.

Re: [zfs-discuss] Yager on ZFS

2007-12-05 Thread Stefano Spinucci
Now, not being a psychic myself, I can't state with authority that Stefano really meant to ask the question that he posed rather than something else. In retrospect, I suppose that some of his surrounding phrasing *might* suggest that he was attempting (however unskillfully) to twist my

Re: [zfs-discuss] Yager on ZFS

2007-12-05 Thread Jonathan Edwards
On Dec 6, 2007, at 00:03, Anton B. Rang wrote: what are you terming as ZFS' incremental risk reduction? I'm not Bill, but I'll try to explain. Compare a system using ZFS to one using another file system -- say, UFS, XFS, or ext3. Consider which situations may lead to data loss in each

Re: [zfs-discuss] Yager on ZFS

2007-12-05 Thread can you guess?
Literacy has nothing to do with the glaringly obvious BS you keep spewing. Actually, it's central to the issue: if you were capable of understanding what I've been talking about (or at least sufficiently humble to recognize the depths of your ignorance), you'd stop polluting this forum with

Re: [zfs-discuss] Yager on ZFS

2007-12-05 Thread Tim Cook
Actually, it's central to the issue: if you were capable of understanding what I've been talking about (or at least sufficiently humble to recognize the depths of your ignorance), you'd stop polluting this forum with posts lacking any technical content whatsoever. I don't speak full of

Re: [zfs-discuss] Yager on ZFS

2007-12-05 Thread can you guess?
Now, not being a psychic myself, I can't state with authority that Stefano really meant to ask the question that he posed rather than something else. In retrospect, I suppose that some of his surrounding phrasing *might* suggest that he was attempting (however unskillfully) to twist

Re: [zfs-discuss] Yager on ZFS

2007-12-05 Thread can you guess?
I suppose we're all just wrong. By George, you've got it! - bill This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss

Re: [zfs-discuss] Yager on ZFS

2007-12-04 Thread can you guess?
Your response here appears to refer to a different post in this thread. I never said I was a typical consumer. Then it's unclear how your comment related to the material which you quoted (and hence to which it was apparently responding). If you look around photo forums, you'll see an

Re: [zfs-discuss] Yager on ZFS

2007-12-04 Thread Stefano Spinucci
On 11/7/07, can you guess? [EMAIL PROTECTED] wrote: However, ZFS is not the *only* open-source approach which may allow that to happen, so the real question becomes just how it compares with equally inexpensive current and potential alternatives (and that would make for an interesting

Re: [zfs-discuss] Yager on ZFS

2007-12-04 Thread can you guess?
On 11/7/07, can you guess? [EMAIL PROTECTED] wrote: However, ZFS is not the *only* open-source approach which may allow that to happen, so the real question becomes just how it compares with equally inexpensive current and potential alternatives (and that would make for an

Re: [zfs-discuss] Yager on ZFS

2007-12-03 Thread Tom Buskey
I never said I was a typical consumer. After all, I bought a $1600 DSLR. If you look around photo forums, you'll see an interest the digital workflow which includes long term storage and archiving. A chunk of these users will opt for an external RAID box (10%? 20%?). I suspect ZFS will

Re: [zfs-discuss] Yager on ZFS

2007-12-01 Thread can you guess?
[Zombie thread returns from the grave...] Getting back to 'consumer' use for a moment, though, given that something like 90% of consumers entrust their PC data to the tender mercies of Windows, and a large percentage of those neither back up their data, nor use RAID to guard against

Re: [zfs-discuss] Yager on ZFS

2007-11-29 Thread Tom Buskey
Getting back to 'consumer' use for a moment, though, given that something like 90% of consumers entrust their PC data to the tender mercies of Windows, and a large percentage of those neither back up their data, nor use RAID to guard against media failures, nor protect it effectively from

Re: [zfs-discuss] Yager on ZFS

2007-11-29 Thread Toby Thain
On 29-Nov-07, at 2:48 PM, Tom Buskey wrote: Getting back to 'consumer' use for a moment, though, given that something like 90% of consumers entrust their PC data to the tender mercies of Windows, and a large percentage of those neither back up their data, nor use RAID to guard against media

Re: [zfs-discuss] Yager on ZFS

2007-11-29 Thread Paul Kraus
On 11/29/07, Toby Thain [EMAIL PROTECTED] wrote: Xserve + Xserve RAID... ZFS is already in OS X 10.5. As easy to set up and administer as any OS X system; a problem free and FAST network server to Macs or PCs. That is a great theory ... we have a number of Xserves with Xraids. No ZFS

Re: [zfs-discuss] Yager on ZFS

2007-11-29 Thread Toby Thain
On 29-Nov-07, at 4:09 PM, Paul Kraus wrote: On 11/29/07, Toby Thain [EMAIL PROTECTED] wrote: Xserve + Xserve RAID... ZFS is already in OS X 10.5. As easy to set up and administer as any OS X system; a problem free and FAST network server to Macs or PCs. That is a great theory ...

Re: [zfs-discuss] Yager on ZFS

2007-11-29 Thread Paul Kraus
On 11/29/07, Toby Thain [EMAIL PROTECTED] wrote: That is a great theory ... we have a number of Xserves with Xraids. No ZFS on Mac OS X (yet), 10.5. Last I looked they were only supporting read only ZFS under 10.5. Also, based on the experiences of a number of my coworkers,

Re: [zfs-discuss] Yager on ZFS

2007-11-16 Thread Adam Leventhal
On Thu, Nov 08, 2007 at 07:28:47PM -0800, can you guess? wrote: How so? In my opinion, it seems like a cure for the brain damage of RAID-5. Nope. A decent RAID-5 hardware implementation has no 'write hole' to worry about, and one can make a software implementation similarly robust with

Re: [zfs-discuss] Yager on ZFS

2007-11-16 Thread Peter Schuller
Brain damage seems a bit of an alarmist label. While you're certainly right that for a given block we do need to access all disks in the given stripe, it seems like a rather quaint argument: aren't most environments that matter trying to avoid waiting for the disk at all? Intelligent prefetch

Re: [zfs-discuss] Yager on ZFS

2007-11-16 Thread can you guess?
can you guess? billtodd at metrocast.net writes: You really ought to read a post before responding to it: the CERN study did encounter bad RAM (and my post mentioned that) - but ZFS usually can't do a damn thing about bad RAM, because errors tend to arise either before ZFS ever

Re: [zfs-discuss] Yager on ZFS

2007-11-15 Thread Robert Milkowski
Hello can, Thursday, November 15, 2007, 2:54:21 AM, you wrote: cyg The major difference between ZFS and WAFL in this regard is that cyg ZFS batch-writes-back its data to disk without first aggregating cyg it in NVRAM (a subsidiary difference is that ZFS maintains a cyg small-update log which

Re: [zfs-discuss] Yager on ZFS

2007-11-15 Thread Andy Lubel
On 11/15/07 9:05 AM, Robert Milkowski [EMAIL PROTECTED] wrote: Hello can, Thursday, November 15, 2007, 2:54:21 AM, you wrote: cyg The major difference between ZFS and WAFL in this regard is that cyg ZFS batch-writes-back its data to disk without first aggregating cyg it in NVRAM (a

Re: [zfs-discuss] Yager on ZFS

2007-11-15 Thread can you guess?
... Well, ZFS allows you to put its ZIL on a separate device which could be NVRAM. And that's a GOOD thing (especially because it's optional rather than requiring that special hardware be present). But if I understand the ZIL correctly not as effective as using NVRAM as a more general kind

Re: [zfs-discuss] Yager on ZFS

2007-11-15 Thread can you guess?
Adam Leventhal wrote: On Thu, Nov 08, 2007 at 07:28:47PM -0800, can you guess? wrote: How so? In my opinion, it seems like a cure for the brain damage of RAID-5. Nope. A decent RAID-5 hardware implementation has no 'write hole' to worry about, and one can make a software implementation

Re: [zfs-discuss] Yager on ZFS

2007-11-15 Thread Marc Bevand
can you guess? billtodd at metrocast.net writes: You really ought to read a post before responding to it: the CERN study did encounter bad RAM (and my post mentioned that) - but ZFS usually can't do a damn thing about bad RAM, because errors tend to arise either before ZFS ever gets the

Re: [zfs-discuss] Yager on ZFS

2007-11-14 Thread can you guess?
some business do not accept any kind of risk Businesses *always* accept risk: they just try to minimize it within the constraints of being cost-effective. Which is a good thing for ZFS, because it can't eliminate risk either, just help to minimize it cost-effectively. However, the subject

Re: [zfs-discuss] Yager on ZFS

2007-11-14 Thread can you guess?
... And how about FAULTS? hw/firmware/cable/controller/ram/... If you had read either the CERN study or what I already said about it, you would have realized that it included the effects of such faults. ...and ZFS is the only prophylactic available. You don't *need* a

Re: [zfs-discuss] Yager on ZFS

2007-11-14 Thread can you guess?
can you guess? wrote: at the moment only ZFS can give this assurance, plus the ability to self correct detected errors. You clearly aren't very familiar with WAFL (which can do the same). ... so far as I can tell it's quite irrelevant to me at home; I can't

Re: [zfs-discuss] Yager on ZFS

2007-11-14 Thread Wade . Stuart
On 9-Nov-07, at 2:45 AM, can you guess? wrote: Au contraire: I estimate its worth quite accurately from the undetected error rates reported in the CERN Data Integrity paper published last April (first hit if you Google 'cern data integrity'). While I have yet to see any checksum

Re: [zfs-discuss] Yager on ZFS

2007-11-14 Thread Toby Thain
On 14-Nov-07, at 12:43 AM, Jason J. W. Williams wrote: Hi Darren, Ah, your CPU end was referring to the NFS client cpu, not the storage device CPU. That wasn't clear to me. The same limitations would apply to ZFS (or any other filesystem) when running in support of an NFS server.

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