search for: ddt

...les are written in a matrix or a vector and have the calculated output added to the matrix or written in a vector? To specify my case in particular I continue: I would like R to calculate for me a value for ‘t’ which is function of input parameters A and B, which are comprised in a matrix called ‘ddt’ and some other constants. q,p,u,v in this example. The equation (q*(1-exp(u*B*t))+( p*(1-exp(v*B*t)-A) A and B may sometimes be ‘missing values’ (NA (not a number)) because there isn’t always a result for each time step. The matrix ddt looks like this Datetime B A t [772,] 12/12/2005 15:27:1...

...rtly, i send my data (totalsinatipicos) that i just try to fit with the nonlinear models. Next, i have the following script where i called the data as totalsinatipicos. I made selfstarting each nonlinear model. ###Library library(NRAIA) ###Data d<-totalsinatipicos f=unique(d$TRAT) dia=unique(d$DDT) REG=4:15 ###Models monomolecular=function(x,a,b,c){return(a*(1-exp(-b*(x-c))))} gompertz=function(x,a,b,c){return(a*exp(-exp(-b*(x-c))))} logistico=function(x,a,b,c){return(a/(1+exp(-b*(x-c))))} gauss=function(x,a,b,c){return(a*exp((-((x-c)*(x-c))/(2*(b*b)))))} richards=function(x,a,b,c){return(a*...

...of the system panicking when it tries to - I believe - deferred-release the corrupted deduped blocks which are no longer referenced by the userdata/blockpointer tree. As I previously wrote in my thread on unfixeable corruptions vs. dedup, there may be some single- or multiple-block references from DDT pointing into "nowhere" - the block pointed to contains non-matching data, and now the BP tree does not point to those blocks either. And there are other blocks with same recorded checksums (repaired from another source). I am not really sure what and how breaks the system into panic. I...

Two related questions: - given an existing pool with dedup''d data, how can I find the current size of the DDT? I presume some zdb work to find and dump the relevant object, but what specifically? - what''s the expansion ratio for the memory overhead of L2ARC entries? If I know my DDT can fit on a ssd of size X, that''s good - but how much RAM do I need for that ssd to be usable...

...I see the file size as 51,193,782,290 bytes. The alloc size reported by zpool along with the DEDUP of 1.13x does not addup to 51,193,782,290 bytes. According to the DEDUP (Dedupe ratio) the amount of data copied is 21.58G (19.1G * 1.13) Here is the output from zdb -DD Prompt:~# zdb -DD TestPool DDT-sha256-zap-duplicate: 33536 entries, size 272 on disk, 140 in core DDT-sha256-zap-unique: 278241 entries, size 274 on disk, 142 in core DDT histogram (aggregated over all DDTs): bucket allocated referenced ______ ______________________________ ______________...

I tried the deduplication feature but the performance of my fileserver dived from writing 50MB/s via CIFS to 4MB/s. what happens to the deduped blocks when you set dedup=off? are they written back to disk? is the deduptable deleted or is it still there? thanks -- This message posted from opensolaris.org

I created a zfs pool with dedup with the following settings: zpool create data c8t1d0 zfs create data/shared zfs set dedup=on data/shared The thing I was wondering about was it seems like ZFS only dedup at the file level and not the block. When I make multiple copies of a file to the store I see an increase in the deup ratio, but when I copy similar files the ratio stays at 1.00x. -- This

On Sun, Dec 27, 2009 at 12:55 AM, Stephan Budach <stephan.budach at jvm.de> wrote: > Brent, > > I had known about that bug a couple of weeks ago, but that bug has been files against v111 and we''re at v130. I have also seached the ZFS part of this forum and really couldn''t find much about this issue. > > The other issue I noticed is that, as opposed to the

Hello list, I''m having trouble with a server holding a lot of data. After a few months of uptime, it is currently rebooting from a lockup (reason unknown so far) but it is taking hours to boot up again. The boot process is stuck at the stage where it says: mounting zfs filesystems (1/5) the machine responds to pings and keystrokes. I can see disk activity; the disk leds blink one after

I have been google for a few days now trying to get the Citrix PV Drivers to work on a server 2008 R2 HVM guest. I get the machine up and running then I install the cirtix PV drivers. I have tried both making and not making the registry change. Once I reboot the server I get stuck at the boot screen. The xen log says: XENUTIL: WARNING: CloseFrontend: timed out in

...BasicBlockIntoOnlyPred 2. lib/Transforms/Utils/BasicBlockUtils.cpp : MergeBlockIntoPredecessor (+cc some of the folks who touched at least one of these either originally or recently) Brief overview: 1. MergeBasicBlockIntoOnlyPred 2. MergeBlockIntoPredecessor Update DT Update DT Update either DT or DDT Updates LI and MemoryDependenceResults Move all instructions from Pred to BB, delete Pred Move all instruction from BB to Pred, delete BB assert BB has single predecessor return if BB doesn't have a single predecessor Can I get some background on why there are two methods with such similar fun...

I was writing my blob at http://railsblob.blogspot.com/ which is for new people who are new to Rubby and I was learning if Mongril or Lighthttttp? or Web Rick is better for me. Have you any advice. Thanks? Rails Blobber -- Posted via http://www.ruby-forum.com/.

Dear ZFS-Users, I want to switch to ZFS, but still want to encrypt my data. Native Encryption for ZFS was added in "ZFS Pool Version Number 30<http://en.wikipedia.org/wiki/ZFS#Release_history>", but I''m using ZFS on FreeBSD with Version 28. My question is how would encfs (fuse encryption) affect zfs specific features like data Integrity and deduplication? Regards

Hi, I was suffering for weeks from the following problem: a zfs dataset contained an automatic snapshot (monthly) that used 2.8 TB of data. The dataset was deprecated, so I chose to destroy it after I had deleted some files; eventually it was completely blank besides the snapshot that still locked 2.8 TB on the pool. ''zfs destroy -r pool/dataset'' hung the machine within seconds

...since we is been here last. I has put up some leet coder on deisgn pattrens for yoo to use in your Rails Appslications. http://railsblob.blogspot.com/2006/08/uisng-design-pattrens-in-yor-rails.html Don''t tell the Javacs, as they might Steal Them and we is not winnning that battle since DDT has made us upgarde our Rails under vieled threats of violance (I is not dissing you DDT - I repsects you) Pease. Rails Blog -- Posted via http://www.ruby-forum.com/.

...n data files. I need to migrate it, going to release 6.2.0 of acucobol. In my tests it seems that I get some errors regarding files access: the program actually doesn't give particular errors, neither samba backend... (the problem resides in having some vcprint layout models for invoices and/or ddt not updated, so that when you want a printout of a ddt, you get the model for customer confirmation...) the application uses AcuCobol Vision files and searching through the web it seems that some problems about locking could exist http://www.codecomments.com/Cobol/message1025566.html The sw vendor...

Hi all My S4 is configured as a file server. The AD DC is a 2003 win server. My users are talking about slow speed on open pst file or other largest file. I have this in my smb.conf socket options = TCP_NODELAY SO_RCVBUF=32768 SO_SNDBUF=32768 I tranfer a 3GB file on the server and I see variations in speed transfer. Generally it cost 28% of my bandwith (1 Gb/s) but, after a while, it

................... | This would *possibly* map to the files of your | driver like this: | | Long Printer Name:\ --> lp:\ |........................... | missing: should be "RAW" !! ##### | | Yeah, you're right. I've missed the RAW DDT. Now | when I complied I got the error from the subject | line. | | Sorry? I didn't get that: you forgot the "RAW" when | you quoted the adddriver command in the mail, or you | forgot it in the command itself? In the command. When I added it, I got other error. | Somethin...

...eatures / UI what is the core OS difference if we move to Nexenta from OpenSolaris b134? These DeDup bugs are my main frustration - if a staff member does a rm * in a directory with dedup you can take down the whole storage server - all with 1% cpu load and relatively little disk i/o due to DeDup DDT not fitting in the SSD + RAM (l2arc+arc). This is rediculous, something must be single threaded and it can''t be that difficult to at least allow reads from other files.. Writes perhaps are more complex - But in our case the "other files" don''t even have DeDup enabled on...

...oth the updater class and DT in a single function somewhere in the > codebase. In such cases it is possible to have some pending updates that > will eventually change DT, but do .dominates() queries on the outdated tree. > However, this problem exists even today to some extend (with DT and DDT) and > I don't think it's very serious. > >> After I read the comments on D41302[1], in which Dave(dmgreen) >> mentions there is a need to preserve the PostDomTree in the future. I >> am wondering whether we need to preserve a PostDomTree all the time in >> the...