similar to: Poor performance on NFS-exported ZFS volumes

Hello all, After setting up a Solaris 10 machine with ZFS as the new NFS server, I''m stumped by some serious performance problems. Here are the (admittedly long) details (also noted at http://www.netmeister.org/blog/): The machine in question is a dual-amd64 box with 2GB RAM and two broadcom gigabit NICs. The OS is Solaris 10 6/06 and the filesystem consists of a single zpool stripe

As mentioned last night, we''ve been reviewing a proposal for hot spare support in ZFS. Below you can find a current draft of the proposed interfaces. This has not yet been submitted for ARC review, but comments are welcome. Note that this does not include any enhanced FMA diagnosis to determine when a device is "faulted". This will come in a follow-on project, of which some

We run our IMAP spool on ZFS that''s derived from LUNs on a Netapp filer. There''s a great deal of churn in e-mail folders, with messages appearing and being deleted frequently. I know that ZFS uses copy-on- write, so that blocks in use are never overwritten, and that deleted blocks are added to a free list. This behavior would spread the free list all over the zpool. As well,

Hey folks, Does anybody know if any of these are on the roadmap for ZFS, or have any idea how long it''s likely to be before we see them (we''re in no rush - late 2008 would be fine with us, but it would be nice to know they''re being worked on)? I''ve seen many people ask for the ability to expand a raid-z pool by adding devices. I''m wondering if it

Hello I'm running some tests to compare performance between Gluster FUSE mount and formated sparse files (located on the same Gluster FUSE mount). The Gluster volume is EC (same for both tests). I'm seeing HUGE difference and trying to figure out why. Here is an example: GlusterFUSE mount: # cd /mnt/glusterfs # rm -f testfile1 ; dd if=/dev/zero of=testfile1 bs=1G count=1 1+0 records

I realize batch mode is still experimental, but I was hoping there might be a workaround for a problem I am getting. I have been trying to run some tests and I get the below error when I use the --read-batch option to. I can successfully create an initial set of batch files, then a second set based upon a few modified test files from the first batch. When I first run the --read-batch option

Hi Xavi At this time I'm using 'plain' bricks with XFS. I'll be moving to LVM cached bricks. There is no RAID for data bricks, but I'll be using hardware RAID10 for SSD cache disks (I can use 'writeback' cache in this case). 'small file performance' is the main reason I'm looking at different options, i.e. using formated sparse files. I spent considerable

I have a set of data frames ds1, ds2, ... each having the same columns and column names: ds1 <- data.frame(x=c(1,2,3,4), y=c(5,6,7,8)) ds1 <- data.frame(x=c(9,10,11,12), y=c(13,14,15,16)) ... and I would like to combine them into just one data frame like ds <- rbind(ds1, ds2, ...) Because there are so many of them, I will have to use a character array nms <-

I have a simple program that read all HTML files from a directory and returns parts of the content and the file names which are HREFs to those file. I build the HREF string dynamicaly as PATH_TO_DOC_ROOT + "file_name". My PATH_TO_DOC_ROOT = http://127.0.0.1:3000/docman/public/docs. So, the final link that I am interested in might look like this:

I was wondering if someone can help me figure out the following: I have two patient datasets, ds1 and ds2. ds1 has fields "patid", "date", and "lab1". ds2 has "patid", "date", and "lab2". I want to find all the patids that have at least 2 dated records for each lab. I started by splitting each dataset by patid, to create ds1.list

I am just starting to code in R and need some help as I am used to doing this in SAS. I have a dataset that looks like this: Chemical Well1 Well2 Well3 Well4 BOD 13.2 14.2 15.5 14.2 O2 7.8 2.6 3.5 2.4 TURB 10.2 14.6 18.5 17.3 and so on with more chemicals.... I would like to transpose my data so that it looks like this: Chemical WellID Value BOD Well1 13.2 BOD Well2 14.2 BOD Well3 15.5 BOD

Hi Dmitri, On 22/09/17 17:07, Dmitri Chebotarov wrote: > > Hello > > I'm running some tests to compare performance between Gluster FUSE mount > and formated sparse files (located on the same Gluster FUSE mount). > > The Gluster volume is EC (same for both tests). > > I'm seeing HUGE difference and trying to figure out why. Could you explain what hardware

Hi, I was taken off guard by the following behavior in a lattice plot. I frequently want to add a predicted curve defined at more points than in the formula expression of xyplot. There have been numerous examples of how to do this on r-help, but I still often struggle to make this work. I just realized that specifying one of the axes on a log scale does not guarantee that the added data for a

Hi, I've been attempting to use rsync 3.1.2 to copy files from a macOS 10.12.2 system to an AFP mounted share. The command I'm using is: rsync -avAX -M--fake-super ./testDir ./mnt/testDir/ This works fine and all the extended attributes are copied and readable. I then try to use rsync to copy these files back with: rsync -avAX --fake-super -M--super ./mnt/testDir/ ./testDir2/ This

On Sat, Sep 19, 2020 at 8:17 PM Akemi Yagi <amyagi at gmail.com> wrote: > On Sat, Sep 19, 2020 at 8:04 PM William Markuske <wmarkuske at gmail.com> > wrote: > > > > Hello, > > > > I ... have come to find out that RedHat deprecated support for a number > of HBAs for 8 including all running the SAS2004 chip. > > > > Does anyone know if there

Dear all, I have a multiline plot with each line labeled with a different letter. But I'm not able to make the legend display the same kind of pattern '-a-', instead the letter is overwritten by the line. A simpler legend with only the letter is not very visible and the pt.bg does nothing with letters. Any idea? plot(1:10,10:1,lty=1,type='b', lwd=2,pch='a')

Have you done any testing with replica 2/3? IIRC my replica 2/3 tests out performed EC on smallfile workloads, it may be worth looking into if you can't get EC up to where you need it to be. -b ----- Original Message ----- > From: "Dmitri Chebotarov" <4dimach at gmail.com> > Cc: "gluster-users" <Gluster-users at gluster.org> > Sent: Tuesday,

Dear R experts, Wish you all a HAPPY NEW YEAR! How do I go about plotting (using lattice) overlays of an ID (group=ID) observed, fitted data in each panel of a multiple panel plot (each panel identified by DS1 + DS2 + DS3)? "x" variable is X1 in the accompanying section of a dataset. each individual is identified by color and Y's are identified by "pch" or "lty".

Hi! All, I am trying to fetch rows from a data frame which matches to first 2 columns of another data frame. Here is the example what I am trying to do: > ptable=read.table(file="All.txt",header=T,sep="\t") > ptable=as.matrix(ptable) > dim(ptable) [1] 9275 6 > head(ptable) Gene1 Gene2 PCC PCC3 PCC23 PCC123 [1,]

Hello, How do I import data from Excel onto R? I am using S-Plus Envstat module. I need to use some of the data that already exist in the Envstat and put it into R to make graphs, find basic informations like mean, median, standard deviation, etc. I have been reading the help links, but I don't see anything in reference to this. Please help me! -Maher Lina