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Hi all, You will find in attachment to this mail some benchmarks we made on Linux with pios over ZFS-DMU. There are some interesting things about ZFS tuning and some ideas for breaking a bottleneck we identified in DMU. Thomas LEIBOVICI CEA/DAM - Ile de France -------------- next part -------------- A non-text attachment was scrubbed... Name: ZFS_benchs_Linux.pdf Type: application/pdf Size: 99215 by...

...by=list(dafSamp[,1]), FUN='mean') Ay Cy <- aggregate(x=dafSamp[,2], by=list(dafSamp[,1]), FUN='length') Cy vecAA <- dafSamp[,2] * Ay[which(Ay[,1]==dafSamp[,1]),2] / Ag University of Aarhus <http://www.au.dk/en> Danmarks Miljøundersøgelser <http://www.dmu.dk/> Hvidberg, Martin <http://www2.dmu.dk/1_Om_DMU/2_medarbejdere/cv/employee2_NH.asp?PersonID=MHV> Senior Geographer (Climatology, Spatial modeling) <http://www.geogr.ku.dk/> N 55°41m43.48s E 12°06m05.13s ETRS89 National Environmental Research Inst. <http://www.dmu.dk/In...

# HG changeset patch # User Ryan Grimm <grimm@us.ibm.com> # Date 1156190589 18000 # Node ID a19a066dea764a70f06b4e4341229db92c2eb5c3 # Parent 53c5bcecfcfdb70cb3a2aed0adb564312988fbdd dm-userspace internal libdmu support for userspace tool Signed-off-by: Ryan Grimm <grimm@us.ibm.com> Signed-off-by: Dan Smith <danms@us.ibm.com> diff -r 53c5bcecfcfd -r a19a066dea76 tools/Makefile --- a/tools/Makefile Mon Aug 21 15:03:07 2006 -0500 +++ b/tools/Makefile Mon Aug 21 15:03:09 2006 -0500 @@ -76,7 +76,...

...ents are welcomed. :-? Martin Hvidberg > ------ > Martin Hvidberg > M.Sc. Physical Geography, Researcher > > Danish Ministry of Environment > National Environmental Research Institute (NERI) > Department of Atmospheric Environment (ATMI) > > Email: mhv at dmu.dk > Url: www.dmu.dk > > -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not t...

Dear All, Can anyone please tell me where I can obtain uncompiled binary instalation files for R version 1.8. (i.e. rw1080.exe)? I can only find the uncompiled source code on CRAN today. Thank you, Mary Wisz msw@dmu.dk [[alternative HTML version deleted]]

Hi, I am soliciting input from the ZFS engineers and/or ZFS users on an extension to "zfs list". Thanks in advance for your feedback. Quick Background: The pNFS project (http://opensolaris.org/os/project/nfsv41/) is adding a new DMU object set type which is used on the pNFS data server to store pNFS stripe DMU objects. A pNFS dataset gets created with the "zfs create" command and gets displayed using "zfs list". Specific Question: Should the pNFS datasets show up in the default "zfs list" ou...

The slides from my ZFS presentation at OSCON (as well as some additional information) are available at http://www.meangrape.com/ 2007/08/oscon-zfs/ Jay Edwards jay at meangrape.com http://www.meangrape.com -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.opensolaris.org/pipermail/zfs-discuss/attachments/20070802/f2fa7b08/attachment.html>

...esystems. When I tried to "zpool import" my zfs filesystems I got a kernel panic: > debugging crash dump vmcore.0 (32-bit) from blackbird > operating system: 5.11 snv_28 (i86pc) > panic message: > ZFS: bad checksum (read on /dev/dsk/c1d0p0 off 24d5e000: zio d3d9d800 > [L0 DMU objset] vdev=0 offset=2495e000 size=400L/200P/200A fletcher4 > lzjb LE contiguous birth=2174 fill=17 cksum=82ee33d1a:38baba > dump content: kernel pages only I then bfu-ed up to b29 and tried to zpool import and get another kernel panic. > debugging crash dump vmcore.9 (32-bit) from b...

Good day, some time ago we discussed that it would be very helpful to store epoch in inode on mds. the perfect solution could be to store epoch in old inode body, but there is no much space for this in the body and with DMU we''ll have this problem again. given the minimal inode size we use on MDS is 512 bytes, we can store upto 13 stripes in the body. larger EAs go to a dedicated block. if we add 8 byte epoch, then we can store upto 12 stripes in the body. so, epoch stored in EA affects only files with exact...

Hi all, I've looked through the archives and I can't seem to find a solution, so here's my problem. I have three Win2k clients and one Samba server which I set up as a PDC (or at least I thought so.) The domain is "THEMOLE" yet when I try to join the domain from the clients it says; "The following error occured validaing the name "THEMOLE" The specified

In my testing, I''ve found the following error: zpool status -v pool: local state: ONLINE status: One or more devices has experienced an error resulting in data corruption. Applications may be affected. action: Restore the file in question if possible. Otherwise restore the entire pool from backup. see: http://www.sun.com/msg/ZFS-8000-8A scrub: none requested

...efore pool export Files: update: usr/src/cmd/mdb/common/modules/zfs/zfs.c update: usr/src/cmd/zdb/zdb.c update: usr/src/cmd/zpool/zpool_main.c update: usr/src/cmd/ztest/ztest.c update: usr/src/uts/common/fs/zfs/arc.c update: usr/src/uts/common/fs/zfs/dbuf.c update: usr/src/uts/common/fs/zfs/dmu.c update: usr/src/uts/common/fs/zfs/dmu_objset.c update: usr/src/uts/common/fs/zfs/dsl_pool.c update: usr/src/uts/common/fs/zfs/metaslab.c update: usr/src/uts/common/fs/zfs/spa.c update: usr/src/uts/common/fs/zfs/spa_misc.c update: usr/src/uts/common/fs/zfs/sys/arc.h update: usr/src/uts/comm...

...----------------------------- ----------------------------- Martin Hvidberg Geographer, M.Sc. National Environmental Research Institute Phone(direct): +45 46 30 11 55 Dept. of Atmospheric Environment Phone: +45 46 30 12 00 Frederiksborgvej 399 Fax: +45 46 30 12 14 Box 358 E-mail: mhv at dmu.dk DK-4000 Roskilde Location: 55?41'43.1"N 12?06'06.6"E Denmark

...b Nabe-Nielsen, PhD, MSc Scientist -------------------------------------------------- Section for Climate Effects and System Modelling Department of Arctic Environment National Enviornmental Research Institute Aarhus University Frederiksborgvej 399, Postbox 358 4000 Roskilde, Denmark email: nabe@dmu.dk fax: +45 4630 1914 phone: +45 4630 1944 [[alternative HTML version deleted]]

Hi There, I looked at the ZFS admin guide in attempt to find a way to leverage ZFS capabilities (storage pool, mirroring, dynamic stripping, etc.) for Xen domU file systems that are not ZFS. Couldn''t find an answer whether ZFS could be used only as a "regular" volume manager to create logical volumes for UFS or even a Linux ext2fs, with ideally, the ability to create

...os servicios municipales con DEA (packages deaR), y posteriormente identificar los determinantes de dicho nivel con una regresión truncada (packages truncreg). Para calcular la eficiencia utilizo inputs/outputs y en la regresión variables ambientales relacionadas con las características de las DMU. En esta segunda fase, es cuando surge el problema de separabilidad entre las variables ambientales y los inputs/output utilizados. Mi pregunta es, ¿conocéis algún test de separabilidad que sirva para esto (confirmar que las variables ambientales no condicionan la producción de eficiencia) y s...

I contacted the author of ''lsof'' regarding the missing ZFS support. The command works but fails to display any files that are opened by the process in a ZFS filesystem. He indicates that the required ZFS kernel structure definitions (header files) are not shipped with the OS. He further indicated that he rummaged through the OpenSolaris source tree and the files doesn''t

I have just recently (physically) moved a system with 16 hard drives (for the array) and 1 OS drive; and in doing so, I needed to pull out the 16 drives so that it would be light enough for me to lift. When I plugged the drives back in, initially, it went into a panic-reboot loop. After doing some digging, I deleted the file /etc/zfs/zpool.cache. When I try to import the pool using the zpool

...in /etc/system and restarted again and then proceeded with: Any attempt to import my pool "tank", including: zpool import -fFX tank zpool import -fFX -o readonly=on tank causes the same kernel panic message: ----- PANIC ---- panic[cpu2]/thread=ffffff00f8578c40: assertion failed: 0 == dmu_buf_hold_array(os, object, offset, size, FALSE, FTAG, &numbufs, &dbp), file: ../../common/fs/zfs/dmu.c, line: 796 ffffff00f8578880 genunix:assfail+7e () ffffff00f8578930 zfs:dmu_write+17f () ffffff00f85789e0 zfs:space_map_sync+295 () ffffff00f8578a70 zfs:metaslab_sync+2de () ffffff00f85...

Hi matt, I have some problems about understanding zfs COW implemention. Suppose b and c are both children dir of a, if c changes, there will be new versions of both a and c, namely c'' and a''. a a'' b c c'' Because ''..'' in b points to a before this change, shall we modify b to let ''..'' point to a''? If yes,