[zfs-discuss] zvol wrapped in a vmdk by Virtual Box and double writes?

2012-11-20 Thread Nathan Kroenert
but it doesn't seem to change the behavious Again - I'm looking for thoughts here - as I have only really just started looking into this. Should I happen across anything interesting, I'll followup this post. Cheers, Nathan. :) ___ zfs-discuss mailing

Re: [zfs-discuss] zvol wrapped in a vmdk by Virtual Box and double writes?

2012-11-20 Thread nathan
* configuration, as I have just the one SSD, but I'll persist and see what I can get out of it. Thanks for the thoughts thus far! Cheers, Nathan. On 21/11/2012 8:33 AM, Fajar A. Nugraha wrote: On Wed, Nov 21, 2012 at 12:07 AM, Edward Ned Harvey (opensolarisisdeadlongliveopensolaris

Re: [zfs-discuss] Advanced Format HDD's - are we there yet? (or - how to buy a drive that won't be teh sux0rs on zfs)

2012-05-29 Thread Nathan Kroenert
the current ones...) I might just have to bite the bullet and try something with current SW. :). Nathan. On 05/29/12 08:54 PM, John Martin wrote: On 05/28/12 08:48, Nathan Kroenert wrote: Looking to get some larger drives for one of my boxes. It runs exclusively ZFS and has been using Seagate 2TB

Re: [zfs-discuss] Advanced Format HDD's - are we there yet? (or - how to buy a drive that won't be teh sux0rs on zfs)

2012-05-29 Thread nathan
On 29/05/2012 11:10 PM, Jim Klimov wrote: 2012-05-29 16:35, Nathan Kroenert wrote: Hi John, Actually, last time I tried the whole AF (4k) thing, it's performance was worse than woeful. But admittedly, that was a little while ago. The drives were the seagate green barracuda IIRC

[zfs-discuss] Advanced Format HDD's - are we there yet? (or - how to buy a drive that won't be teh sux0rs on zfs)

2012-05-28 Thread Nathan Kroenert
called 'advanced format' drives (which as far as I can tell are in no way actually advanced, and only benefit HDD makers and not the end user). Cheers! Nathan. ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman

Re: [zfs-discuss] Convert pool from ashift=12 to ashift=9

2012-03-20 Thread Nathan Kroenert
Jim Klimov wrote: It is is hard enough already to justify to an average wife that...snip That made my night. Thanks, Jim. :) On 03/20/12 10:29 PM, Jim Klimov wrote: 2012-03-18 23:47, Richard Elling wrote: ... Yes, it is wrong to think that. Ok, thanks, we won't try that :) copy out,

Re: [zfs-discuss] Bad performance (Seagate drive related?)

2012-02-04 Thread Nathan Kroenert
the stack. Hope this helps somewhat. Let us know how you go. Cheers! Nathan. On 02/ 1/12 04:52 AM, Mohammed Naser wrote: Hi list! I have seen less-than-stellar ZFS performance on a setup of one main head connected to a JBOD (using SAS, but drives are SATA). There are 16 drives (8 mirrors

Re: [zfs-discuss] Can I create a mirror for a root rpool?

2011-12-18 Thread Nathan Kroenert
Do note, that though Frank is correct, you have to be a little careful around what might happen should you drop your original disk, and only the large mirror half is left... ;) On 12/16/11 07:09 PM, Frank Cusack wrote: You can just do fdisk to create a single large partition. The attached

Re: [zfs-discuss] Very poor pool performance - no zfs/controller errors?!

2011-12-18 Thread Nathan Kroenert
considering something different ;) Cheers! Nathan. On 12/19/11 09:05 AM, Jan-Aage Frydenbø-Bruvoll wrote: Hi, On Sun, Dec 18, 2011 at 22:00, Fajar A. Nugrahaw...@fajar.net wrote: From http://www.solarisinternals.com/wiki/index.php/ZFS_Best_Practices_Guide (or at least Google's cache of it, since

Re: [zfs-discuss] Improving L1ARC cache efficiency with dedup

2011-12-11 Thread Nathan Kroenert
sequentially), I'd have thought it should be a lot faster than 12x. Can we really only pull stuff from cache at only a little over one gigabyte per second if it's dedup data? Cheers! Nathan. ___ zfs-discuss mailing list zfs-discuss@opensolaris.org

Re: [zfs-discuss] Replacement disks for Sun X4500

2011-07-07 Thread nathan
to claim more available space for the same device, and to be lazy in the CRC generation/checking arena. And to profoundly impact the time it takes to read or update anything less than 4K. But - then again, maybe I'm missing something. Cheers! Nathan

Re: [zfs-discuss] zpool import hangs - pls help

2011-06-14 Thread Nathan Kroenert
this helps at least a little. Cheers, Nathan. On 06/14/11 03:20 PM, Maximilian Sarte wrote: Hi, I am posting here in a tad of desperation. FYI, I am running FreeNAS 8.0. Anyhow, I created a raidz1 (tank1) with 4 x 2Tb WD EARS hdds. All was doing ok until I decided to up the RAM to 4 Gb since

Re: [zfs-discuss] zpool scrub on b123

2011-04-16 Thread Nathan Kroenert
Hi Karl, Is there any chance at all that some other system is writing to the drives in this pool? You say other things are writing to the same JBOD... Given that the amount flagged as corrupt is so small, I'd imagine not, but thought I'd ask the question anyways. Cheers! Nathan. On 04

Re: [zfs-discuss] Slices and reservations Was: Re: How long should an empty destroy take? snv_134

2011-03-08 Thread Nathan Kroenert
when you disable the disk cache. Nathan. On 8/03/2011 11:53 PM, Edward Ned Harvey wrote: From: Jim Dunham [mailto:james.dun...@oracle.com] ZFS only uses system RAM for read caching, If your email address didn't say oracle, I'd just simply come out and say you're crazy, but I'm trying to keep

Re: [zfs-discuss] How long should an empty destroy take? snv_134

2011-03-06 Thread Nathan Kroenert
something administratively silly... ;) Nathan. On 7/03/2011 12:14 PM, Edward Ned Harvey wrote: From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss- boun...@opensolaris.org] On Behalf Of Yaverot We're heading into the 3rd hour of the zpool destroy on others. The system isn't locked up

Re: [zfs-discuss] sorry everyone was: Re: External SATA drive enclosures + ZFS?

2011-02-26 Thread Nathan Kroenert
Actually, I find that tremendously encouraging. Lots of internal Oracle folks still subscribed to the list! Much better than none... ;) Nathan. On 02/26/11 03:29 PM, Yaverot wrote: Sorry all, didn't realize that half of Oracle would auto-reply to a public mailing list since they're out

Re: [zfs-discuss] SIL3114 and sparc solaris 10

2011-02-25 Thread Nathan Kroenert
pretty much flat out on a PCI-X 133 3124 based card. (note that there was a pci and a pci-x version of the 3124, so watch out.) Cheers! Nathan. On 02/24/11 02:10 AM, Andrew Gabriel wrote: Krunal Desai wrote: On Wed, Feb 23, 2011 at 8:38 AM, Mauricio Tavares raubvo...@gmail.com wrote: I

Re: [zfs-discuss] External SATA drive enclosures + ZFS?

2011-02-25 Thread Nathan Kroenert
- using eSATA. Note: All of this is with the 'cheap' view... You can most certainly buy much better hardware... But bang for buck - I have been happy with the above. Cheers! Nathan. On 02/26/11 01:58 PM, Brandon High wrote: On Fri, Feb 25, 2011 at 4:34 PM, Rich Teerrich.t...@rite-group.com

Re: [zfs-discuss] ZFS read/write fairness algorithm for single pool

2011-02-14 Thread Nathan Kroenert
zfs_vdev_max_pending... Nonetheless, I'm now at a far more balanced point than when I started, so that's a good thing. :) Cheers, Nathan. On 15/02/2011 6:44 AM, Richard Elling wrote: Hi Nathan, comments below... On Feb 13, 2011, at 8:28 PM, Nathan Kroenert wrote: On 14/02/2011 4:31 AM, Richard

[zfs-discuss] ZFS read/write fairness algorithm for single pool

2011-02-13 Thread Nathan Kroenert
observing is not great... I'm also happy to supply lockstats / dtrace output etc if it'll help. Thoughts? Cheers! Nathan. ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss

Re: [zfs-discuss] ZFS read/write fairness algorithm for single pool

2011-02-13 Thread Nathan Kroenert
raid controller is actually *slowing* my reads and writes to disk! ;) Cheers! Nathan. On 14/02/2011 4:08 AM, gon...@comcast.net wrote: Hi Nathan, Maybe it is buried somewhere in your email, but I did not see what zfs version you are using. This is rather important, because the 145

Re: [zfs-discuss] ZFS read/write fairness algorithm for single pool

2011-02-13 Thread Nathan Kroenert
On 14/02/2011 4:31 AM, Richard Elling wrote: On Feb 13, 2011, at 12:56 AM, Nathan Kroenertnat...@tuneunix.com wrote: Hi all, Exec summary: I have a situation where I'm seeing lots of large reads starving writes from being able to get through to disk. snip What is the average service time

[zfs-discuss] hard drive choice, TLER/ERC/CCTL

2009-12-10 Thread Nathan
http://en.wikipedia.org/wiki/Time-Limited_Error_Recovery Is there a way except for buying enterprise (RAID specific) drives for a array to use normal drives? Does anyone have any success stories regarding a particular model? The TLER cannot be edited on newer drives from Western Digital

Re: [zfs-discuss] hard drive choice, TLER/ERC/CCTL

2009-12-10 Thread Nathan
Sorry I probably didn't make myself exactly clear. Basically drives without particular TLER settings drop out of RAID randomly. * Error Recovery - This is called various things by various manufacturers (TLER, ERC, CCTL). In a Desktop drive, the goal is to do everything possible to recover the

Re: [zfs-discuss] hard drive choice, TLER/ERC/CCTL

2009-12-10 Thread Nathan
http://www.stringliterals.com/?p=77 This guy talks about it too under Hard Drives. -- This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss

[zfs-discuss] White box server for OpenSolaris

2009-09-25 Thread Nathan
While I am about to embark on building a home NAS box using OpenSolaris with ZFS. Currently I have a chassis that will hold 16 hard drives, although not in caddies - down time doesn't bother me if I need to switch a drive, probably could do it running anyways just a bit of a pain. :) I am

[zfs-discuss] Procedure for Initial ZFS Replication to Remote Site by External HDD?

2009-08-12 Thread Nathan Hudson-Crim
What is the best way to use an external HDD for initial replication of a large ZFS filesystem? System1 had filesystem; System2 needs to have a copy of filesystem. Used send/recv on System1 to put filesys...@snap1 on connected external HDD. Exported external HDD pool and connected/imported on

Re: [zfs-discuss] Procedure for Initial ZFS Replication to Remote Site by External HDD?

2009-08-12 Thread Nathan Hudson-Crim
I figured out what I did wrong. The filesystem as received on the external HDD had multiple snapshots, but I failed to check for them. So I had created a snapshot in order to send/recv on System2. That doesn't work, obviously. A new local send/recv of the filesystem's correct snapshot did the

Re: [zfs-discuss] Finding SATA cards for ZFS; was Lundman home NAS

2009-08-03 Thread Nathan Fiedler
I have not carried out any research into this area, but when I was building my home server I wanted to use a Promise SATA-PCI card, but alas (Open)Solaris has no support at all for the Promise chipsets. Instead I used a rather old card based on the sil3124 chipset. n On Mon, Aug 3, 2009 at 9:35

Re: [zfs-discuss] [storage-discuss] ZFS and deduplication

2009-08-03 Thread Nathan Hudson-Crim
this before. What you have to do is ask James each question 3 times and on the third time he will tell the truth. ;) I know it's not in the preview of 2010.2 (build 118). On a serious note, James - do you know the status of the presentation recording on ZFS deduplication? Many thanks, Nathan

Re: [zfs-discuss] [storage-discuss] ZFS and deduplication

2009-08-03 Thread Nathan Hudson-Crim
, Nathan -- 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] Lundman home NAS

2009-07-31 Thread Nathan Fiedler
Yes, please write more about this. The photos are terrific and I appreciate the many useful observations you've made. For my home NAS I chose the Chenbro ES34069 and the biggest problem was finding a SATA/PCI card that would work with OpenSolaris and fit in the case (technically impossible without

Re: [zfs-discuss] deduplication

2009-07-30 Thread Nathan Hudson-Crim
I'll maintain hope for seeing/hearing the presentation until you guys announce that you had NASA store the tape for safe-keeping. Bump'd. -- This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org

Re: [zfs-discuss] Motherboard for home zfs/solaris file server

2009-07-21 Thread Nathan Fiedler
Regarding the SATA card and the mainboard slots, make sure that whatever you get is compatible with the OS. In my case I chose OpenSolaris which lacks support for Promise SATA cards. As a result, my choices were very limited since I had chosen a Chenbro ES34069 case and Intel Little Falls 2

Re: [zfs-discuss] ZFS Honesty after a power failure

2009-03-24 Thread Nathan Kroenert
Score one more for ZFS! This box has a measly 300GB mirrored, and I have already seen dud data. (heh... It's also got non-ecc memory... ;) Cheers! Nathan. Dennis Clarke wrote: On Tue, 24 Mar 2009, Dennis Clarke wrote: You would think so eh? But a transient problem that only occurs after

Re: [zfs-discuss] reboot when copying large amounts of data

2009-03-12 Thread Nathan Kroenert
definitely time to bust out some mdb -k and see what it's moaning about. I did not see the screenshot earlier... sorry about that. Nathan. Blake wrote: I start the cp, and then, with prstat -a, watch the cpu load for the cp process climb to 25% on a 4-core machine. Load, measured for example

Re: [zfs-discuss] reboot when copying large amounts of data

2009-03-12 Thread Nathan Kroenert
definitely time to bust out some mdb -K or boot -k and see what it's moaning about. I did not see the screenshot earlier... sorry about that. Nathan. Blake wrote: I start the cp, and then, with prstat -a, watch the cpu load for the cp process climb to 25% on a 4-core machine. Load, measured

Re: [zfs-discuss] reboot when copying large amounts of data

2009-03-12 Thread Nathan Kroenert
! Nathan. On 13/03/09 09:21 AM, Dave wrote: Tim wrote: On Thu, Mar 12, 2009 at 2:22 PM, Blake blake.ir...@gmail.com mailto:blake.ir...@gmail.com wrote: I've managed to get the data transfer to work by rearranging my disks so that all of them sit on the integrated SATA controller

Re: [zfs-discuss] reboot when copying large amounts of data

2009-03-11 Thread Nathan Kroenert
your memory, and your physical backing storage is taking a while to catch up? Nathan. Blake wrote: My dump device is already on a different controller - the motherboards built-in nVidia SATA controller. The raidz2 vdev is the one I'm having trouble with (copying the same files

Re: [zfs-discuss] schedulers [was: zfs related google summer of code ideas - your vote]

2009-03-04 Thread Nathan Kroenert
ZIL and L2ARC would be interesting, though, given the propensity for SSD's to be either fast read or fast write at the moment, you may well require some whacky knobs to get it to do what you actually want it to... hm. Nathan. Bill Sommerfeld wrote: On Wed, 2009-03-04 at 12:49 -0800, Richard

Re: [zfs-discuss] destroy means destroy, right?

2009-01-29 Thread Nathan Kroenert
to one minute to undo. That will catch 80% of the mistakes? ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss -- // // Nathan

Re: [zfs-discuss] New RAM disk from ACARD might be interesting

2009-01-29 Thread Nathan Kroenert
device... Seems a little pricey for what it is though. It's going onto my list of what I'd buy if I had the money... ;) Nathan. On 01/30/09 12:10, Janåke Rönnblom wrote: ACARD have launched a new RAM disk which can take up to 64 GB of ECC RAM while still looking like a standard SATA drive

Re: [zfs-discuss] New RAM disk from ACARD might be interesting

2009-01-29 Thread Nathan Kroenert
You could be the first... Man up! ;) Nathan. Will Murnane wrote: On Thu, Jan 29, 2009 at 21:11, Nathan Kroenert nathan.kroen...@sun.com wrote: Seems a little pricey for what it is though. For what it's worth, there's also a 9010B model that has only one sata port and room for six dimms

Re: [zfs-discuss] destroy means destroy, right?

2009-01-28 Thread Nathan Kroenert
, but it would have it's merits... Cheers! Nathan. Jacob Ritorto wrote: Hi, I just said zfs destroy pool/fs, but meant to say zfs destroy pool/junk. Is 'fs' really gone? thx jake ___ zfs-discuss mailing list zfs-discuss@opensolaris.org

Re: [zfs-discuss] Is Disabling ARC on SolarisU4 possible?

2009-01-28 Thread Nathan Kroenert
to test the *actual* disk performance, you should just use the underlying disk device like /dev/rdsk/c0t0d0s0 Beware, however, that any writes to these devices will indeed result in the loss of the data on those devices, zpools or other. Cheers. Nathan. Richard Elling wrote: Rob Brown wrote

Re: [zfs-discuss] destroy means destroy, right?

2009-01-28 Thread Nathan Kroenert
-- // // Nathan Kroenert nathan.kroen...@sun.com // // Systems Engineer Phone: +61 3 9869-6255 // // Sun Microsystems Fax:+61 3 9869-6288 // // Level 7, 476 St. Kilda Road

Re: [zfs-discuss] cifs perfomance

2009-01-22 Thread Nathan Kroenert
Are you able to qualify that a little? I'm using a realtek interface with OpenSolaris and am yet to experience any issues. Nathan. Brandon High wrote: On Wed, Jan 21, 2009 at 5:40 PM, Bob Friesenhahn bfrie...@simple.dallas.tx.us wrote: Several people reported this same problem

Re: [zfs-discuss] cifs perfomance

2009-01-22 Thread Nathan Kroenert
Interesting. I'll have a poke... Thanks! Nathan. Brandon High wrote: On Thu, Jan 22, 2009 at 1:29 PM, Nathan Kroenert nathan.kroen...@sun.com wrote: Are you able to qualify that a little? I'm using a realtek interface with OpenSolaris and am yet to experience any issues. There's a lot

Re: [zfs-discuss] hot spare not so hot ??

2009-01-20 Thread Nathan Kroenert
An interesting interpretation of using hot spares. Could it be that the hot-spare code only fires if the disk goes down whilst the pool is active? hm. Nathan. Scot Ballard wrote: I have configured a test system with a mirrored rpool and one hot spare. I powered the systems off, pulled one

Re: [zfs-discuss] ZFS tale of woe and fail

2009-01-18 Thread Nathan Kroenert
Hey, Tom - Correct me if I'm wrong here, but it seems you are not allowing ZFS any sort of redundancy to manage. I'm not sure how you can class it a ZFS fail when the Disk subsystem has failed... Or - did I miss something? :) Nathan. Tom Bird wrote: Morning, For those of you who

Re: [zfs-discuss] Odd network performance with ZFS/CIFS

2009-01-13 Thread Nathan Kroenert
... It would be interesting to see if you see the same issues using a Solaris or other OS client. Hope this helps somewhat. Let us know how it goes. Nathan. fredrick phol wrote: I'm currently experiencing exactly the same problem and it's been driving me nuts. Tried open soalris and am currently

Re: [zfs-discuss] Can the new consumer NAS devices run OpenSolaris?

2009-01-12 Thread Nathan Kroenert
compression, which might, on the slower Atom style chips, get in the way. Looking forward to any reports. Nathan. On 13/01/09 01:47 PM, JZ wrote: ok, was I too harsh on the list? sorry folks, as I said, I have the biggest ego. no one can hurt that by trying to fight me, but yes, it can be hurt

Re: [zfs-discuss] Need Help Recovering Zpool

2008-12-15 Thread Nathan Hand
I have moved the zpool image file to an OpenSolaris machine running 101b. r...@opensolaris:~# uname -a SunOS opensolaris 5.11 snv_101b i86pc i386 i86pc Solaris Here I am able to attempt an import of the pool and at least the OS does not panic. r...@opensolaris:~# zpool import -d /mnt pool:

Re: [zfs-discuss] Need Help Invalidating Uberblock

2008-12-15 Thread Nathan Hand
I don't know if this is relevant or merely a coincidence but the zdb command fails an assertion in the same txg_wait_synced function. r...@opensolaris:~# zdb -p /mnt -e zones Assertion failed: tx-tx_threads == 2, file ../../../uts/common/fs/zfs/txg.c, line 423, function txg_wait_synced Abort

Re: [zfs-discuss] Need Help Recovering Zpool

2008-12-15 Thread Nathan Hand
Thanks for the reply. I tried the following: $ zpool import -o failmode=continue -d /mnt -f zones But the situation did not improve. It still hangs on the import. -- This message posted from opensolaris.org ___ zfs-discuss mailing list

Re: [zfs-discuss] Need Help Invalidating Uberblock

2008-12-15 Thread Nathan Hand
I've had some success. I started with the ZFS on-disk format PDF. http://opensolaris.org/os/community/zfs/docs/ondiskformat0822.pdf The uberblocks all have magic value 0x00bab10c. Used od -x to find that value in the vdev. r...@opensolaris:~# od -A x -x /mnt/zpool.zones | grep b10c 00ba

[zfs-discuss] Need Help Invalidating Uberblock

2008-12-14 Thread Nathan Hand
I have a ZFS pool that has been corrupted. The pool contains a single device which was actually a file on UFS. The machine was accidentally halted and now the pool is corrupt. There are (of course) no backups and I've been asked to recover the pool. The system panics when trying to do anything

Re: [zfs-discuss] Is a manual zfs scrub neccessary?

2008-11-09 Thread Nathan Kroenert
once every month or so, depending on the system. So, in direct answer to your question, No - You don't *need* to scrub. But - It's better if you do. ;) My 2c. Nathan. On 10/11/08 11:38 AM, Douglas Walker wrote: Hi, I'm running a 3Tb RAIDZ2 array and was wondering about the zfs scrub

Re: [zfs-discuss] boot -L

2008-11-06 Thread Nathan Kroenert
A quick google shows that it's not so much about the mirror, but the BE... http://opensolaris.org/os/community/zfs/boot/zfsbootFAQ/ Might help? Nathan. On 7/11/08 02:39 PM, Krzys wrote: What am I doing wrong? I have sparc V210 and I am having difficulty with boot -L, I was under

Re: [zfs-discuss] FYI - proposing storage pm project

2008-11-04 Thread Nathan Kroenert
Not wanting to hijack this thread, but... I'm a simple man with simple needs. I'd like to be able to manually spin down my disks whenever I want to... Anyone come up with a way to do this? ;) Nathan. Jens Elkner wrote: On Mon, Nov 03, 2008 at 02:54:10PM -0800, Yuan Chu wrote: Hi

Re: [zfs-discuss] add autocomplete feature for zpool, zfs command

2008-10-10 Thread Nathan Kroenert
are available in that current zfs / zpool version... That way, you would never need to do anything to bash/zfs once it was done the first time... do it once, and as ZFS changes, the prompts change automatically... Or - is this old hat, and how we do it already? :) Nathan. On 10/10/08 05:06 PM, Boyd

Re: [zfs-discuss] ZSF Solaris

2008-09-30 Thread Nathan Kroenert
the utilities that work on and in it to perform at a reasonable rate... which for the most part is around the 100K files or less... Perhaps you are using larger hardware than I am for some of this stuff? :) Nathan. On 1/10/08 07:29 AM, Toby Thain wrote: On 30-Sep-08, at 7:50 AM, Ram Sharma

Re: [zfs-discuss] CF to SATA adapters for boot device

2008-08-20 Thread Nathan Kroenert
I second that question, and also ask what brand folks like for performance and compatibility? Ebay is killing me with vast choice and no detail... ;) Nathan. Al Hopper wrote: On Wed, Aug 20, 2008 at 12:57 PM, Neal Pollack [EMAIL PROTECTED] wrote: Ian Collins wrote: Brian Hechinger wrote

Re: [zfs-discuss] help me....

2008-08-04 Thread Nathan Kroenert
It starts with Z, which makes it the one of the last to be considered if it's listed alphabetically? Nathan. Rahul wrote: hi can you give some disadvantages of the ZFS file system?? plzz its urgent... help me. This message posted from opensolaris.org

Re: [zfs-discuss] Supermicro AOC-USAS-L8i

2008-08-04 Thread Nathan Kroenert
of hassle getting it working, but in the ZFS space, it works great pretty much out of the box (plus ethernet address change if the nvidia driver is still busted... ;) Cheers! Nathan. *Going like stink means going like a hairy goat - like lightning - like s*it off a shovel - like a zyrtec - fast

Re: [zfs-discuss] How to delete hundreds of emtpy snapshots

2008-07-17 Thread Nathan Kroenert
experiment :) so I'll be watching this thread with renewed interest to see who else is doing what... Nathan. Bob Friesenhahn wrote: On Thu, 17 Jul 2008, Ben Rockwood wrote: zfs list is mighty slow on systems with a large number of objects, but there is no foreseeable plan that I'm aware

Re: [zfs-discuss] ZFS deduplication

2008-07-07 Thread Nathan Kroenert
Even better would be using the ZFS block checksums (assuming we are only summing the data, not it's position or time :)... Then we could have two files that have 90% the same blocks, and still get some dedup value... ;) Nathan. Charles Soto wrote: A really smart nexus for dedup is right when

Re: [zfs-discuss] ZFS write / read speed and traps for beginners

2008-06-15 Thread Nathan Kroenert
... Awesome. Now to work on audio... heh. Nathan. Nathan Kroenert wrote: Hey all - Just spent quite some time trying to work out why my 2 disk mirrored ZFS pool was running so slow, and found an interesting answer... System: new Gigabyte M750sli-DS4, AMD 9550, 4GB memory and 2 X Seagate

[zfs-discuss] ZFS write / read speed and traps for beginners

2008-06-14 Thread Nathan Kroenert
. With 4 cores @ 2.2Ghz (phenom 9550) it's looking like it'll do what I wanted quite nicely. Later... Nathan. -- // // Nathan Kroenert [EMAIL PROTECTED] // // Systems Engineer Phone: +61 3 9869-6255

Re: [zfs-discuss] SATA controller suggestion

2008-06-07 Thread Nathan Kroenert
but cannot get 'em in Australia any more... :) Cheers! Nathan. ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss

Re: [zfs-discuss] More USB Storage Issues

2008-06-05 Thread Nathan Kroenert
a couple of 'better' USB hubs (Mine are pretty much the cheapest I could buy) and see how that goes. For gags, take ZFS out of the equation and validate that your hardware is actually providing a stable platform for ZFS... Mine wasn't... Nathan. Evan Geller wrote: So, I've been stuck in kind

Re: [zfs-discuss] Get your SXCE on ZFS here!

2008-06-04 Thread Nathan Kroenert
to ring true. Not at all sure about SAS. If I'm wrong here, hopefully someone else will provide the complete set of logic for determining cache enabling semantics. :) Nathan. Brian Hechinger wrote: On Wed, Jun 04, 2008 at 09:17:05PM -0400, Ellis, Mike wrote: The FAQ document ( http

Re: [zfs-discuss] ZFS root finally here in SNV90

2008-06-04 Thread Nathan Kroenert
know many don't consider this an issue these days, but I'd still be inclined to keep /var (and especially /var/tmp) separated from / In ZFS, this is, of course, just two filesystems in the same pool, with differing quotas... :) Nathan. Rich Teer wrote: On Wed, 4 Jun 2008, Bob Friesenhahn wrote

Re: [zfs-discuss] x4500 Thumper panic

2008-05-11 Thread Nathan Kroenert - Server ESG
, when you get the chance, deliberately panic the box to make sure you can actually capture a dump... dumpadm is your friend as far as checking where you are going to dump to, and it it's one side of your swap mirror, that's bad, M'Kay? :) Nathan. Jorgen Lundman wrote: OK, this is a pretty damn

Re: [zfs-discuss] zfs data corruption

2008-04-27 Thread Nathan Kroenert - Server ESG
. Does any of this make you feel any better (or worse)? Nathan. Mark A. Carlson wrote: fmd(1M) can log faults to syslogd that are already diagnosed. Why would you want the random spew as well? -- mark Carson Gaspar wrote: [EMAIL PROTECTED] wrote: It's not safe to jump to this conclusion

Re: [zfs-discuss] zfs data corruption

2008-04-23 Thread Nathan Kroenert
caffeine... :) Nathan Vic Engle wrote: I'm hoping someone can help me understand a zfs data corruption symptom. We have a zpool with checksum turned off. Zpool status shows that data corruption occured. The application using the pool at the time reported a read error and zoppl status (see below

Re: [zfs-discuss] Zfs send takes 3 days for 1TB?

2008-04-09 Thread Nathan Kroenert
. :) Nathan. Nicolas Williams wrote: On Wed, Apr 09, 2008 at 11:38:03PM -0400, Jignesh K. Shah wrote: Can zfs send utilize multiple-streams of data transmission (or some sort of multipleness)? Interesting read for background http://people.planetpostgresql.org/xzilla/index.php?/archives/338-guid.html

Re: [zfs-discuss] ZFS on Sun X2100?

2008-03-19 Thread Nathan Kroenert
Did you do anything specific with the drive caches? How is your ZFS performance? Nathan. :) Rich Teer wrote: On Wed, 19 Mar 2008, Terence Ng wrote: I am new to Solaris. I have Sun X2100 with 2 x 80G harddisks (run as email server, run tomcat, jboss and postgresql) and want to run

Re: [zfs-discuss] zfs 32bits

2008-03-06 Thread Nathan Kroenert
sort of issues. An external 500GB disk + external USB enclosure runs for what - $150? That's what I use anyways. :) Nathan. Paul Kraus wrote: On Thu, Mar 6, 2008 at 10:22 AM, Brian D. Horn [EMAIL PROTECTED] wrote: ZFS is not 32-bit safe. There are a number of places in the ZFS code where

Re: [zfs-discuss] Dealing with Single Bit Flips - WAS: Cause for data corruption?

2008-03-03 Thread Nathan Kroenert
Bob Friesenhahn wrote: On Tue, 4 Mar 2008, Nathan Kroenert wrote: It does seem that some of us are getting a little caught up in disks and their magnificence in what they write to the platter and read back, and overlooking the potential value of a simple (though potentially

Re: [zfs-discuss] Dealing with Single Bit Flips - WAS: Cause for data corruption?

2008-03-03 Thread Nathan Kroenert
going to shutup now. I think I have done this to death, and I don't want to end up in everyone's kill filter. Cheers! Nathan. Bob Friesenhahn wrote: On Tue, 4 Mar 2008, Nathan Kroenert wrote: The circus trick can be handled via a user-contributed utility. In fact, people can compete

Re: [zfs-discuss] ZFS vs. Novell NSS

2008-02-28 Thread Nathan Kroenert - Server ESG
Hm - Based on this detail from the page: Change lever for switching between Rotation + Hammering , Neutral and Hammering only I'd hope it could still hammer... Though I'd suspect the size of nails it would hammer would be somewhat limited... ;) Nathan. Boyd Adamson wrote: Richard Elling

Re: [zfs-discuss] Can ZFS be event-driven or not?

2008-02-26 Thread Nathan Kroenert
minute snapshots. Nathan. Uwe Dippel wrote: atomic view? Your post was on the gory details on how ZFS writes. Atomic View here is, that 'save' of a file is an 'atomic' operation: at one moment in time you click 'save', and some other moment in time it is done. It means indivisible

Re: [zfs-discuss] Can ZFS be event-driven or not?

2008-02-26 Thread Nathan Kroenert
? Nathan. Nicolas Williams wrote: On Tue, Feb 26, 2008 at 06:34:04PM -0800, Uwe Dippel wrote: The rub is this: how do you know when a file edit/modify has completed? Not to me, I'm sorry, this is task of the engineer, the implementer. (See 'atomic', as above.) It would be a shame if a file

Re: [zfs-discuss] Cause for data corruption?

2008-02-25 Thread Nathan Kroenert
for it, just in case it's one for which there was a known problem. (which was worked around in the driver) I *think* there was an issue with at least one or two... Cheers! Nathan. Sandro wrote: hi folks I've been running my fileserver at home with linux for a couple of years and last week I

Re: [zfs-discuss] Can ZFS be event-driven or not?

2008-02-25 Thread Nathan Kroenert
And would drive storage requirements through the roof!! I like it! ;) Nathan. Jonathan Loran wrote: David Magda wrote: On Feb 24, 2008, at 01:49, Jonathan Loran wrote: In some circles, CDP is big business. It would be a great ZFS offering. ZFS doesn't have it built-in, but AVS made

Re: [zfs-discuss] 100% random writes coming out as 50/50 reads/writes

2008-02-15 Thread Nathan Kroenert
What about new blocks written to an existing file? Perhaps we could make that clearer in the manpage too... hm. Mattias Pantzare wrote: If you created them after, then no worries, but if I understand correctly, if the *file* was created with 128K recordsize, then it'll keep that

Re: [zfs-discuss] 100% random writes coming out as 50/50 reads/writes

2008-02-15 Thread Nathan Kroenert
files are updated as well... hm. Cheers! Nathan. Richard Elling wrote: Nathan Kroenert wrote: And something I was told only recently - It makes a difference if you created the file *before* you set the recordsize property. Actually, it has always been true for RAID-0, RAID-5, RAID-6

Re: [zfs-discuss] 100% random writes coming out as 50/50 reads/writes

2008-02-14 Thread Nathan Kroenert
I understand correctly. Hopefully someone else on the list will be able to confirm. Cheers! Nathan. Richard Elling wrote: Anton B. Rang wrote: Create a pool [ ... ] Write a 100GB file to the filesystem [ ... ] Run I/O against that file, doing 100% random writes with an 8K block size

[zfs-discuss] ZFS taking up to 80 seconds to flush a single 8KB O_SYNC block.

2008-02-06 Thread Nathan Kroenert
. If anyone has ideas on specific incantations I should use or some specific D or anything else, I'd be most appreciative. Cheers! Nathan. ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss

Re: [zfs-discuss] Sun 5220 as a ZFS Server?

2008-02-05 Thread Nathan Kroenert
. (A single thread of an N2 is only so fast... Just think of what you could do with 64 of them ;) I'll be interested to see what the others have to say. :) Hope this helps. Nathan. Michael Stalnaker wrote: We’re looking at building out sever ZFS servers, and are considering an x86 platform vs

Re: [zfs-discuss] 30 seond hang, ls command....

2008-01-30 Thread Nathan Kroenert
Any chance the disks are being powered down, and you are waiting for them to power back up? Nathan. :) Neal Pollack wrote: I'm running Nevada build 81 on x86 on an Ultra 40. # uname -a SunOS zbit 5.11 snv_81 i86pc i386 i86pc Memory size: 8191 Megabytes I started with this zfs pool many

Re: [zfs-discuss] hardware for zfs home storage

2008-01-14 Thread Nathan Kroenert
I see a business opportunity for someone... Backups for the masses... of Unix / VMS and other OS/s out there. any takers? :) Nathan. Jonathan Loran wrote: eric kustarz wrote: On Jan 14, 2008, at 11:08 AM, Tim Cook wrote: www.mozy.com appears to have unlimited backups for 4.95

Re: [zfs-discuss] Clearing partition/label info

2007-12-17 Thread Nathan Kroenert
format -e then from there, re-label using SMI label, versus EFI. Cheers Al Slater wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hi, What is the quickest way of clearing the label information on a disk that has been previously used in a zpool? regards - -- Al Slater

Re: [zfs-discuss] ZFS + DB + fragments

2007-11-13 Thread Nathan Kroenert
of these would require non-sparse file creation for the DB etc, but would it be plausible? For very read intensive and position sensitive applications, I guess this sort of capability might make a difference? Just some stabs in the dark... Cheers! Nathan. Louwtjie Burger wrote: Hi After a clean

Re: [zfs-discuss] ZFS very slow under xVM

2007-11-01 Thread Nathan Kroenert
on occasion... Maybe it's not just me... Unfortunately, I'm still running old nv and xen bits, so I can't speak to the 'current' situation... Cheers. Nathan. Martin wrote: Hello I've got Solaris Express Community Edition build 75 (75a) installed on an Asus P5K-E/WiFI-AP (ip35/ICH9R based

[zfs-discuss] characterizing I/O on a per zvol basis.

2007-10-17 Thread Nathan Kroenert
Hey all - Time for my silly question of the day, and before I bust out vi and dtrace... If there a simple, existing way I can observe the read / write / IOPS on a per-zvol basis? If not, is there interest in having one? Cheers! Nathan. ___ zfs

Re: [zfs-discuss] When I stab myself with this knife, it hurts... But - should it kill me?

2007-10-04 Thread Nathan Kroenert
pool... I'm ok(ish) with the panic on a failed write to a non-redundant storage. I expect it by now... Cheers! Nathan. Victor Engle wrote: Wouldn't this be the known feature where a write error to zfs forces a panic? Vic On 10/4/07, Ben Rockwood [EMAIL PROTECTED] wrote: Dick Davies

Re: [zfs-discuss] When I stab myself with this knife, it hurts... But - should it kill me?

2007-10-04 Thread Nathan Kroenert
Erik - Thanks for that, but I know the pool is corrupted - That was kind if the point of the exercise. The bug (at least to me) is ZFS panicing Solaris just trying to import the dud pool. But, maybe I'm missing your point? Nathan. eric kustarz wrote: Client A - import pool make

Re: [zfs-discuss] When I stab myself with this knife, it hurts... But - should it kill me?

2007-10-04 Thread Nathan Kroenert
step. :) Cheers. Nathan. Eric Schrock wrote: On Fri, Oct 05, 2007 at 08:20:13AM +1000, Nathan Kroenert wrote: Erik - Thanks for that, but I know the pool is corrupted - That was kind if the point of the exercise. The bug (at least to me) is ZFS panicing Solaris just trying to import

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