[zfs-discuss] confused about zpool import -f and export
: 4 children[0]: type: 'disk' id: 0 guid: 2101335193002161906 path: '/dev/dsk/c0d0s0' devid: 'id1,c...@aqemu_harddisk=qm1/a' phys_path: '/p...@0,0/pci-...@1,1/i...@0/c...@0,0:a' whole_disk: 0 create_txg: 4 children[1]: type: 'disk' id: 1 guid: 1675033977484889918 path: '/dev/dsk/c0d1s0' devid: 'id1,c...@aqemu_harddisk=qm2/a' phys_path: '/p...@0,0/pci-...@1,1/i...@0/c...@1,0:a' whole_disk: 0 create_txg: 4 LABEL 3 version: 22 name: 'syspool' state: 0 txg: 11520 pool_guid: 15023076366841556794 hostid: 8399112 hostname: 'repository' top_guid: 12107281337513313186 guid: 2101335193002161906 vdev_children: 1 vdev_tree: type: 'mirror' id: 0 guid: 12107281337513313186 metaslab_array: 23 metaslab_shift: 32 ashift: 9 asize: 750041956352 is_log: 0 create_txg: 4 children[0]: type: 'disk' id: 0 guid: 2101335193002161906 path: '/dev/dsk/c0d0s0' devid: 'id1,c...@aqemu_harddisk=qm1/a' phys_path: '/p...@0,0/pci-...@1,1/i...@0/c...@0,0:a' whole_disk: 0 create_txg: 4 children[1]: type: 'disk' id: 1 guid: 1675033977484889918 path: '/dev/dsk/c0d1s0' devid: 'id1,c...@aqemu_harddisk=qm2/a' phys_path: '/p...@0,0/pci-...@1,1/i...@0/c...@1,0:a' whole_disk: 0 create_txg: 4 -- Bill McGonigle, Owner BFC Computing, LLC http://bfccomputing.com/ Telephone: +1.603.448.4440 Email, IM, VOIP: b...@bfccomputing.com VCard: http://bfccomputing.com/vcard/bill.vcf Social networks: bill_mcgonigle/bill.mcgonigle ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Mirroring USB Drive with Laptop for Backup purposes
On 05/07/2010 11:08 AM, Edward Ned Harvey wrote: I'm going to continue encouraging you to staying mainstream, because what people do the most is usually what's supported the best. If I may be the contrarian, I hope Matt keeps experimenting with this, files bugs, and they get fixed. His use case is very compelling - I know lots of SOHO folks who could really use a NAS where this 'just worked' The ZFS team has done well by thinking liberally about conventional assumptions. -Bill -- Bill McGonigle, Owner BFC Computing, LLC http://bfccomputing.com/ Telephone: +1.603.448.4440 Email, IM, VOIP: b...@bfccomputing.com VCard: http://bfccomputing.com/vcard/bill.vcf Social networks: bill_mcgonigle/bill.mcgonigle ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] ZFS - USB 3.0 SSD disk
On 05/06/2010 11:00 AM, Bruno Sousa wrote: Going on the specs it seems to me that if this device has a good price it might be quite useful for caching purposes on ZFS based storage. Not bad, they claim 1TB transfer in 47 minutes: http://www.google.com/search?hl=enq=1TB%2F47+minutes That's about double what I usually get out of a cheap 'desktop' SATA drive with OpenSolaris. Slower than a RAID-Z2 of 10 of them, though. Still, the power savings could be appreciable. -Bill -- Bill McGonigle, Owner BFC Computing, LLC http://bfccomputing.com/ Telephone: +1.603.448.4440 Email, IM, VOIP: b...@bfccomputing.com VCard: http://bfccomputing.com/vcard/bill.vcf Social networks: bill_mcgonigle/bill.mcgonigle ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Per-user home filesystems and OS-X Leopard anomaly
On Jun 5, 2008, at 17:03, Bill McGonigle wrote: Better late then never... this is now bug #5989285 (not that this will help most people; they're not open). Apple say: After further investigation it has been determined that this is a known issue, which is currently being investigated by engineering. This issue has been filed in our bug database under the original Bug ID# 5952818. So, somebody already knew about it, and they haven't rejected the bug, so it might get fixed sooner or later. -Bill - Bill McGonigle, Owner Work: 603.448.4440 BFC Computing, LLC Home: 603.448.1668 [EMAIL PROTECTED] Cell: 603.252.2606 http://www.bfccomputing.com/Page: 603.442.1833 Blog: http://blog.bfccomputing.com/ VCard: http://bfccomputing.com/vcard/bill.vcf ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Per-user home filesystems and OS-X Leopard anomaly
On May 21, 2008, at 13:14, Bill McGonigle wrote: They'll have ZFS on OSX Server eventually. Replying to myself again... :P It looks like 'eventually' is next year: http://www.apple.com/server/macosx/snowleopard/ ZFS For business-critical server deployments, Snow Leopard Server adds read and write support for the high-performance, 128-bit ZFS file system, which includes advanced features such as storage pooling, data redundancy, automatic error correction, dynamic volume expansion, and snapshots. I guess it'll trickle down to 'Client' in the subsequent revision. It'll be there via diskutil or something in Snow Leopard, if it follows historical trends, just not in the GUI - I think they like the alpha geeks to beat on new filesystem stuff for them this way. :) -Bill - Bill McGonigle, Owner Work: 603.448.4440 BFC Computing, LLC Home: 603.448.1668 [EMAIL PROTECTED] Cell: 603.252.2606 http://www.bfccomputing.com/Page: 603.442.1833 Blog: http://blog.bfccomputing.com/ VCard: http://bfccomputing.com/vcard/bill.vcf ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Per-user home filesystems and OS-X Leopard anomaly
On May 21, 2008, at 13:43, Bob Friesenhahn wrote: BTW, you should probably file a bug with Apple on this: https://bugreport.apple.com/cgi-bin/WebObjects/RadarWeb.woa/wa/signIn They'll have ZFS on OSX Server eventually. If you don't want to create an ADC account I can put one in for you (though less efficient, obviously). Feel free to do so on my behalf. :-) Better late then never... this is now bug #5989285 (not that this will help most people; they're not open). -Bill - Bill McGonigle, Owner Work: 603.448.4440 BFC Computing, LLC Home: 603.448.1668 [EMAIL PROTECTED] Cell: 603.252.2606 http://www.bfccomputing.com/Page: 603.442.1833 Blog: http://blog.bfccomputing.com/ VCard: http://bfccomputing.com/vcard/bill.vcf ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] disk names?
On Jun 3, 2008, at 16:35, Benjamin Ellison wrote: 've got 4 SATA drives in a hot-swap backplane hooked to my motherboard... where do I look or what command should I use to see what I should put after the zpool create [poolname] raidz bit? See if 'cfgadm' gives you a good list. You're about an hour behind me on the learning curve (building a Nexenta box here - ZFS found a problem disk that was causing troubles previously - sweet!). -Bill - Bill McGonigle, Owner Work: 603.448.4440 BFC Computing, LLC Home: 603.448.1668 [EMAIL PROTECTED] Cell: 603.252.2606 http://www.bfccomputing.com/Page: 603.442.1833 Blog: http://blog.bfccomputing.com/ VCard: http://bfccomputing.com/vcard/bill.vcf ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] disk names?
On Jun 3, 2008, at 16:50, Benjamin Ellison wrote: cfgadm shows the following: App_Id Type Receptacle Occupant Condition sata0/0 sata-port empty unconfigured ok sata0/1 sata-port empty unconfigured ok sata0/2 sata-port empty unconfigured ok sata0/3 sata-port empty unconfigured ok Just for the sake of comparison, mine looks like: [EMAIL PROTECTED]:~$ cfgadm Ap_Id Type Receptacle Occupant Condition sata0/0::dsk/c1t0d0disk connectedconfigured ok sata0/1::dsk/c1t1d0disk connectedconfigured ok --snip--- -Bill - Bill McGonigle, Owner Work: 603.448.4440 BFC Computing, LLC Home: 603.448.1668 [EMAIL PROTECTED] Cell: 603.252.2606 http://www.bfccomputing.com/Page: 603.442.1833 Blog: http://blog.bfccomputing.com/ VCard: http://bfccomputing.com/vcard/bill.vcf ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] ZFS problems with USB Storage devices
On Jun 3, 2008, at 18:34, Paulo Soeiro wrote: This test was done without the hub: FWIW, I bought 9 microSD's and 9 USB controller units for them from NewEgg to replicate the famous ZFS demo video, and I had problems getting them working with OpenSolaris (on VMWare on OSX, in this case). After getting frustrated and thinking about it for a while, I decided to test each MicroSD card and controller independently (using dd) and one of the adapters turned out to be flakey at just writing zeros. It also happened to be the #0 adapter which through me off for a while, since that's where I started. So, then I was still having problems (but I had tested the remaining units), so I went home for the weekend, and left them plugged into their hubs (i-rocks brand seems OK so far), and came back to a system log full of a second adapter dropping out several times over the weekend (though it survived a quick dd). Taking it off the hub, it did the same thing for me if I waited long enough (10 minutes or so - I assume it was getting warmed up). I've also had to replace a server mobo which had a faulty USB implementation (Compaq brand, one of the early USB2.0 chips). Just food for thought - there's a lot to go wrong before ZFS sees it and USB gear isn't always well-made. -Bill - Bill McGonigle, Owner Work: 603.448.4440 BFC Computing, LLC Home: 603.448.1668 [EMAIL PROTECTED] Cell: 603.252.2606 http://www.bfccomputing.com/Page: 603.442.1833 Blog: http://blog.bfccomputing.com/ VCard: http://bfccomputing.com/vcard/bill.vcf ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] ZFS Project Hardware
On May 28, 2008, at 05:11, James Andrewartha wrote: From what I can tell, all the vendors are only making SAS controllers for PCIe with more than 4 ports. Since SAS supports SATA, I guess they don't see much point in doing SATA-only controllers. For example, the LSI SAS3081E-R is $260 for 8 SAS ports on 8x PCIe, which is somewhat more expensive than the almost equivalent PCI-X LSI SAS3080X-R which is as low as $180. That's not a huge price difference when building a server - thanks for the pointer. Are there any 'gotchas' the list can offer when using a SAS card with SATA drives? I've been told that SATA drives can have a lower MTBF than SAS drives (by a guy working QA for BigDriveCo), but ZFS helps keep the I in RAID. For those downthread looking for full RAID controllers with battery backup RAM, Areca (who formerly specialised in SATA controlers) now do SAS RAID at reasonable prices, and have Solaris drivers. I've seen posts about misery with the sil and marvell drivers from about a year ago; is there a good way to pound an opensolaris driver to find its holes, in a ZFS context? On one hand I'd guess it shouldn't be too hard to simulate different kinds of loads, but on the other hand, if that were easy, the drivers' authors would have done that before unleashing buggy code on the masses. Thanks, -Bill - Bill McGonigle, Owner Work: 603.448.4440 BFC Computing, LLC Home: 603.448.1668 [EMAIL PROTECTED] Cell: 603.252.2606 http://www.bfccomputing.com/Page: 603.442.1833 Blog: http://blog.bfccomputing.com/ VCard: http://bfccomputing.com/vcard/bill.vcf ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] ZFS in S10U6 vs openSolaris 05/08
On May 23, 2008, at 22:21, Richard Elling wrote: Consider a case where you might use large, slow SATA drives (1 TByte, 7,200 rpm) for the main storage, and a single small, fast (36 GByte, 15krpm) drive for the L2ARC. This might provide a reasonable cost/performance trade-off. Ooh, neat; I hadn't considered that. Cool, thanks. :) -Bill - Bill McGonigle, Owner Work: 603.448.4440 BFC Computing, LLC Home: 603.448.1668 [EMAIL PROTECTED] Cell: 603.252.2606 http://www.bfccomputing.com/Page: 603.442.1833 Blog: http://blog.bfccomputing.com/ VCard: http://bfccomputing.com/vcard/bill.vcf ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] ZFS in S10U6 vs openSolaris 05/08
On May 22, 2008, at 19:54, Richard Elling wrote: The Adaptive Replacement Cache (ARC) uses main memory as a read cache. But sometimes people want high performance, but don't want to spend money on main memory. So, the Level-2 ARC can be placed on a block device, such as a fast [solid state] disk which may even be volatile. The remote-disk cache makes perfect sense. I'm curious if there are measurable benefits for caching local disks as well? NAND-flash SSD drives have good 'seek' and slow transfer, IIRC, but that might still be useful for lots of small reads where seek is everything. I'm not quite understanding the argument for a being read-only so it can be used on volatile SDRAM-based SSD's, though. Those tend to be much, much more expensive than main memory, right? So, why would anybody buy one for cache - is it so they can front a really massive pool of disks that would exhaust market-available maximum main memory sizes? -Bill - Bill McGonigle, Owner Work: 603.448.4440 BFC Computing, LLC Home: 603.448.1668 [EMAIL PROTECTED] Cell: 603.252.2606 http://www.bfccomputing.com/Page: 603.442.1833 Blog: http://blog.bfccomputing.com/ VCard: http://bfccomputing.com/vcard/bill.vcf ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Per-user home filesystems and OS-X Leopard anomaly
On May 21, 2008, at 11:15, Bob Friesenhahn wrote: The simple solution was to simply create a /home/.DS_Store directory on the server so that the mount request would succeed. What permissions do you have on /home/.DS_Store? I assume the clients fail quietly on their write attempts? Does the setup work well aside from this problem? I've just been mulling AFP vs. NFS vs. iSCSI for Mac clients to their ZFS homes, and AFP is the one I tried first and have ruled out as usable. :) BTW, you should probably file a bug with Apple on this: https://bugreport.apple.com/cgi-bin/WebObjects/RadarWeb.woa/wa/signIn They'll have ZFS on OSX Server eventually. If you don't want to create an ADC account I can put one in for you (though less efficient, obviously). -Bill - Bill McGonigle, Owner Work: 603.448.4440 BFC Computing, LLC Home: 603.448.1668 [EMAIL PROTECTED] Cell: 603.252.2606 http://www.bfccomputing.com/Page: 603.442.1833 Blog: http://blog.bfccomputing.com/ VCard: http://bfccomputing.com/vcard/bill.vcf ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] replace, restart, gone - HELP!
On May 21, 2008, at 02:53, Christopher Gibbs wrote: I got to thinking about how my data was fine before the replace so I popped the cable off of the new disk and walla! The spare showed back up and the pool imported in a degraded state. Good news. I'll be curious to hear if you ultimately determine that to have been a bad disk or not (once your backup is done!). -Bill - Bill McGonigle, Owner Work: 603.448.4440 BFC Computing, LLC Home: 603.448.1668 [EMAIL PROTECTED] Cell: 603.252.2606 http://www.bfccomputing.com/Page: 603.442.1833 Blog: http://blog.bfccomputing.com/ VCard: http://bfccomputing.com/vcard/bill.vcf ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] The ZFS inventor and Linus sitting in a tree?
On May 20, 2008, at 03:09, Erik Trimble wrote: That is, the ZFS on-disk format isn't IP protected, and the general concepts of how ZFS works (pools, CoW, snapshots, etc) are open, it's just _how_ the guts do these things which are. I'm also in the decidedly-not-a-lawyer camp too, but when I went and looked one time (at less than half of the patents - does anybody have a public list?) I think I saw things like on-disk file-tree representation, zero-fill and sparse file storage formats, multiple copies, extended attributes storage, the way you make snapshots, the way you express filesystems and pools hierarchically, the specific way write intents have to be done in ZFS - stuff like that. Again, being neither a lawyer nor a ZFS dev, I came away thinking it might be possible to make a read-only version that would be OK, or if maybe a handful of the patents didn't issue perhaps a low-performance version without some of the features. But then nobody would want to do a thing like that. :) Everything I've read from Sun folk indicates they'd like to see ZFS become ubiquitous, so I'm sure they're going to figure something out sooner or later. It's worth remembering that some people are still waiting for what they consider essential features, so we're really early in the game here, and if we're still in the Cathedral stage, the status quo may be the best bet for now. -Bill - Bill McGonigle, Owner Work: 603.448.4440 BFC Computing, LLC Home: 603.448.1668 [EMAIL PROTECTED] Cell: 603.252.2606 http://www.bfccomputing.com/Page: 603.442.1833 Blog: http://blog.bfccomputing.com/ VCard: http://bfccomputing.com/vcard/bill.vcf ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] ZFS and Linux
On May 6, 2008, at 12:54, eric kustarz wrote: Some of it has already been done: http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/grub/ grub-0.95/stage2/zfs-include/uberblock_impl.h That file says 'Copyright 2007 Sun Microsystems, Inc.', though, so Sun has the rights to do this. But being GPLv2 code, why do I have any patent rights to include/redistribute that grub code in my (theoretical) product (let's assume it does something that is covered by one of the ZFS patents)? GPLv3 makes this issue go away, but grub is v2 so it's still there. AFAIK, Sun hasn't granted me any patent rights to ZFS other than through the CDDL. (Though I'd love to be wrong on this). The problem, as I understand it, is that Sun currently licenses the patents only under the terms of the CDDL. It looks like Section 2.1.d, probably. So, as long as I'm working in the CDDL I get all the patent protections I'd ever need from Sun. But if I (for the sake of argument) were to re-implement ZFS, not under CDDL, by what grant has Sun offered me a patent license? The grants in the CDDL only apply to works distributed under the terms of the CDDL, as I read it. From skimming the porting paper, it looks like the BSD port uses the CDDL code directly and so doesn't have to worry about this. I assume Mac OS X does too? I'm sure this has been hashed before, but my search keywords are apparently sub-par. -Bill - Bill McGonigle, Owner Work: 603.448.4440 BFC Computing, LLC Home: 603.448.1668 [EMAIL PROTECTED] Cell: 603.252.2606 http://www.bfccomputing.com/Page: 603.442.1833 Blog: http://blog.bfccomputing.com/ VCard: http://bfccomputing.com/vcard/bill.vcf ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] ZFS and Linux
On May 6, 2008, at 14:59, Bob Friesenhahn wrote: By releasing this bit of code to Grub under the GPL v2 license, Sun has effectively transferred rights to use that scrap of code (in any context) regardless of any Sun patents which may apply. Ah, yes, I was wrong on this one - I see Section 11 of GPLv2 covers this adequately. However, it seems that the useful ZFS patents would be for writing/updating the filesystem rather than reading from it. You can be sure that Sun put as little ZFS code in Grub as was possible (and not just for license reasons). Well, yeah, the bootloader ought to be as minimal as possible, that just makes sense, any business cases aside. I was pleasantly surprised to boot up the latest OpenSolaris OS Live CD and see GRUB, though. :) -Bill - Bill McGonigle, Owner Work: 603.448.4440 BFC Computing, LLC Home: 603.448.1668 [EMAIL PROTECTED] Cell: 603.252.2606 http://www.bfccomputing.com/Page: 603.442.1833 Blog: http://blog.bfccomputing.com/ VCard: http://bfccomputing.com/vcard/bill.vcf ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] ZFS and Linux
Is it also true that ZFS can't be re-implemented in GPLv2 code because then the CDDL-based patent protections don't apply? This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
