similar to: bizarre problem with performance

I have a large set of Dell 620 blades fully populated with memory and duel socket CPUs, Centos6.4 image. I have a kickstart that I am using to pxe boot 36 blades. I have two internal drives which are raid1 (two disks formed into one, no redundancy), not san attached In the first set, 9 successfully completed. 7 more built correctly after trying another pxe boot. 2 just wont pxeboot In the

I have an intermittent problem with my Dell blades, out of 80 blades 69 of them kickstarted Centos 6 fine using PXE The other 11, I get a c0t0 not found error (indicating it is not finding the local disk on the blade). I can remote mount the iso image and do a basic install of centos on these blades, but when I go to do a pxe boot it gives me that error again. I have googled the issue and

I have googled, read the man page, and such. What I am trying to do is install applications to a NFS mounted drive, where the libraries and everything are locally installed on that filesystem so that it is portable across servers (I have over 100 servers which each need specific applications installed via yum and we do not want to install 100 copies). We tried the yum relocate and it was not

When I put export DISPLAY="IP address:0.0" ip address being my windows8 desktop then xhost + I get xhost: unable to open display "IP:0.0" when I try export DISPLAY=":0.0" I get the same thing. I have centos6.4 running on a late model Dell Blade Windows8 Alienware laptop I checked the xwin firewall setting and it is set to public network access (but strangely

I am a bit baffled on this. We recently rebuilt all our servers to CentOS release 6.8 (Final) from a prior 6.x centos release. We ran into a couple of problems such as Java not working (just had to yum install java). It was installed, but unable to create a java machine, until I yum install java solved the problem. But now a user (the big boss) is receiving xrdp errors. And it appears

I am looking for opinions and personal experience on CentOS7 for both grid and virtualized web environments. I am currently on CentOS6.5 in a production environment. I am about to add about 50 more servers to my grid and am trying to identify the advantages and disadvantages of going to CentOS7. The good part is, that I have some tolerance for backing out and installing CentOS6.5 if 7 does not

Hi, I am still trying to get kick-start centos in my vmware5 because pxe cannot find the pxe server. I do not control the dhcp or pxe server. I have both my kickstart file and my iso image for centos6.5 on my vmware datastore, but am trying to run my kickstart file from VMware guest. Can I tell the command line to run from the datastore in VMWare? Or must I convert my kickstart file to a

Hi, I have an interesting problem. I want to be able to verify that my hostname, ipaddress, and mac address are correct in the DNS/DHCP. I have the values, how do I compare. I am able to use NSLOOKUP for the hostname=ip confirmation How do I do the ip addresss = mac address comparison I tried arp and a few other things. Almost everything on google says either to logon to DHCP (which I do

This should be simple, but it's not, unless I'm forgetting something. Writing a script, an arg is a filename. So fname=$1 But I want that expanded to include the full path and filename, not just what is given as the arg on the command line. E.g., if the user's cwd is /home/joe/a/b/c/ and he specifies ../x/file-a.ext then the function/utility should transform that into the

My environment is "heterogeneous" my authentication and home server are currently stuck on a 1G shared network, the production servers and storage servers are on a bonded 40G network, all are in the same VLAN. I have about 100 servers on the 40GB bonded network each with 12cores and 128GB of memory. They are running centos 6.6 Except for my storage servers they are all just running

About 15% of my blades wont kickstart. I checked to see, and they all seem to be 100% compatible. I currently do not own/direct access the kickstart server, I will build one later. Is it possible they fat fingered the MAC address of the problem blades when they put them into the PXE server? As I can build them from a locally mounted virtual CD, but cannot build from PXE At first I was

Hello, I am moving LDAP from one domain to another We have moved off of a.wustl.edu network to b.school.edu network. I have searched vi /etc/nslcd.conf vi /etc/openldap/ldap.conf and removed all referances to "a" I restarted /etc/init.d/nscd restart this is redhat 6.7, and my ldap server is now ldap.b.wustl.edu:389 a.school.edu to b.school.edu I keep getting messages

<copied from opensolaris-dicuss as this probably belongs here.> I kept on trying to migrate my pool with children (see previous threads) and had the (bad) idea to try the -d option on the receive part. The system reboots immediately. Here is the log in /var/adm/messages Feb 8 16:07:09 amber unix: [ID 836849 kern.notice] Feb 8 16:07:09 amber ^Mpanic[cpu1]/thread=ffffff014ba86e40: Feb 8

amber ~ # zpool list data NAME SIZE ALLOC FREE CAP DEDUP HEALTH ALTROOT data 930G 295G 635G 31% 1.00x ONLINE - amber ~ # zfs send -RD data at prededup |zfs recv -d ezdata cannot receive new filesystem stream: destination ''ezdata'' exists must specify -F to overwrite it amber ~ # zfs send -RD data at prededup |zfs recv -d ezdata/data cannot receive:

The subject says it all. I'm using rocks cluster software to startup a small blade cluster in my lab. The blades I have redboot installed on them. I am able to boot any client that has pxeboot capability using my setup, except for these blades. My thoughs were using redboot commands to do the following: 1. load -v -r -b 0x8000000 -h 10.1.1.1 pxelinux.0 2. start This however caused my

Hi, I have a vector Y1 <-c(8, 11, 7, 5, 6, 3, 6, 3, 3) and an index iy <-c(c(1, 2),c(1 2), c(1, 2, 3, 4), c(2, 3, 5), c(4), c(5, 6, 7), c(7, 8, 9)) how can I produce the mean, or the sum of the elements specified in the index iy from the vector Y1? expecting something like this for the sum: Y2 19 19 31 24 5 15 12 I thought lapply function may perform this, but does not work:

Hello freebsd-stable, I've got FreeBSD 4.8R and CD-RW Asus CRW-4824a (master, ata1) but when boot process: acd0: MODE_SENSE_BIG command timeout - resetting ata1: resetting .. done It repeats 15 times, then all ok boot But I can't use acd0 Alexander Potapenko -- Best regards, Amber mailto:amber@arziz.uptel.net

Hi there. I got myself a pair of old Intel Xeon blades, which I plan to repurpose with CentOS. The model is : HP bl20p-g3 server blade Manual http://h18004.www1.hp.com/products/quickspecs/12322_ca/12322_ca.pdf Now, the main problem with this hardware is that LVD UW SCSI HDDs are hard to find and hella expensive if you find em (and of reduced capacity). Any of you know: 1. If there's any

Hello, I have CentOS 5.2 installed on two of the afore-mentioned blades. I've noticed that the OS started to crash lately (kernel panic) and I've been assigned the task to troubleshoot this issue. I would like to know what is the best way of recovering the kernel dump after the OS crashes. I know there are two software implementations that would enable me to do this, kexec and

Hi, I''m having problems using Xen (2.0.7 and 3.0.0) on newer IBM HS-20 blades, which uses Broadcom network card (tg3 kernel module). Here''s the relevant entry from lspci : 05:01.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5704S Gigabit Ethernet (rev 10) 05:01.1 Ethernet controller: Broadcom Corporation NetXtreme BCM5704S Gigabit Ethernet (rev 10) If xend is