Displaying 20 results from an estimated 81 matches for "dmu".
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2008 Jan 15
1
ZFS-DMU benchmark on Linux
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
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2008 Jun 10
2
How to join data.frames and vectors of different length, in an inteligent way?
...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...
2006 Aug 21
1
[PATCH 3 of 6] dm-userspace internal libdmu support for userspace tool
# 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,...
2002 Nov 25
2
Q: Segmentation fault at all commands ?
...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...
2005 Apr 13
2
easy question: obtaining rw1080.exe
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
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2009 Mar 03
8
zfs list extentions related to pNFS
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...
2007 Aug 02
3
ZFS, ZIL, vq_max_pending and OSCON
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
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2006 Jan 04
8
Using same ZFS under different kernel versions
...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...
2008 Feb 19
32
storing SOM epoch in EA
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...
2002 Nov 21
5
PDC Problems...
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
2006 May 19
11
tracking error to file
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
2006 Oct 31
0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
...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...
2003 Feb 17
2
Q: libreadline.so.4.1 problems on Alpha/Linux
...-----------------------------
-----------------------------
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
2009 Aug 12
1
Simulating points from GLM corresponding to new x-values
...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
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2006 Aug 01
5
ZFS, block device and Xen?
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
2020 Feb 06
2
TEST DE SEPARABILIDAD CON R
...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...
2007 Feb 14
5
Need help making lsof work with ZFS
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
2006 Oct 05
13
Unbootable system recovery
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
2011 Nov 25
1
Recovering from kernel panic / reboot cycle importing pool.
...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...
2008 Nov 08
9
How does zfs COW deal with ''..'' in brother directory?
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,