similar to: How to clone CentOS server ?

Hello, we are using hardware array and its vendor recommends the following setting in /etc/system: set sd:sd_max_throttle = <value> or set ssd:ssd_max_throttle = <value> Is it possible to monitor *somehow* whether the variable becomes sort of bottleneck ? Or how its value influences io traffic ? Regards przemol

Hello, one of our developers is developing his Web applications (PHP-based+MySql) on 64-bit Fedora. He would like to use the same, 64-bit environment on CentOS. I am not against 64-bits (we use it for many, many years using Solaris) but what concerns me is the stability of 64-bit Linux. Can you share your experience regarding stability of 32-bit and 64-bit CentOS ? Does anybody use 64-bit CentOS

Hello, we are using several centos servers under Vmware. We are having more and more requests for server space for each business application (let assume that these business requests are for different type of services: databases, web apps, application servers etc. I wonder which solution is better: 1. new CentOS under vmware (having several CentOS servers under Vmware) or 2. new CentOS under KVM

Hello, I am trying to migrate one of our fedora-based servers to CentOS. Our PHP developers doesn't allow us to switch because there are no crucial (for them) php packages: php-smarty php-adodb php-accelerator It is not acceptable for us to download sources and compile them and repeat the process each time there is a security bug. Can you recommend any repository which will deliver all the

Hello, we have installed non-repository based software on our centos servers (e.g. vmware tools). Each time we do 'yum update' we have to run several scripts to check if these software works after update. Sometimes we forget ... It it possible to configure any sort of triggers which will run automatically after 'yum update' ? I'd like to avoid writing shell wrappers for yum

Hello, we have several physical servers (CentOS 5.*) with rather critical applications where (because of stability) we don't do regularly 'yum update'. In virtualized environemnts (under Vmware) we do a snapshot, then 'yum update', reboot and if something is wrong we rollback the snapshot. On physical servers we cannot do that. I have read about rollback option of rpm but not

All, I understand that ZFS gives you more error correction when using two LUNS from a SAN. But, does it provide you with less features than UFS does on one LUN from a SAN (i.e is it less stable). Thanks, Shawn This message posted from opensolaris.org

Hi all, I am looking for a tool which let me monitor memory consumption per process on CentOS 5/6. The tool should be able to save its history so I could see what amount of memory was consumed yesterday/week ago/etc by each process. Can you recommend anything like that ? Best regards P.

Hi! >Message: 5 >Date: Thu, 08 Jul 2004 17:00:21 +0530 >From: Sudheer Divakaran <sudheer@svw.com> >To: lartc@mailman.ds9a.nl >Subject: [LARTC] Is Linux based Router feasible > >Hi, > >I''ve a local LAN consisting of about 150 machines. I''m using a Linux >machine as the gateway machine which inturn connects to two different >ISPs. My

Hi all, I remember at OSCON 2005 there was talk of adding DTrace probes to PHP (in fact, I have a photo of Bryan and Wes working on it!). Did they ever get into the upstream branch, ''cause I don''t recall seeing a --enable-dtrace (or similar) configuration option when I recently built PHP 5.2.1. If not, is there an ETA? TIA, -- Rich Teer, SCSA, SCNA, SCSECA, OpenSolaris CAB

I am trying to use the following set (all from standard repositories): centos (5.5) + python 2.6 + sqlalchemy + mysql. However while running my script I get: Traceback (most recent call last): File "./oraping2.py", line 43, in <module> main() File "./oraping2.py", line 23, in main db = create_engine('mysql:///u1oraping at

Hello, can I use chroot users in their home directories under centos 5.* using standard packages ? How about chrooted sftp in centos 5.* ? If I cannot - do I have to use centos 6.* ? Regards Przemek ---------------------------------------------------------------- Dom pod miastem lub mieszkanie w centrum znajdziesz wlasnie tu! http://linkint.pl/f2a58

Hi all, I had centos 5.9 installed with one of its volumes (non-root) on LVM: ... /dev/vgapps/lvapps /opt/apps ext3 defaults 1 2 ... Then installed centos 6.4 on this servers but without exporting this volume (I wanted to reuse it). After that instead importing it I did: # pvcreate /dev/sddlmac # vgcreate vgapps /dev/sddlmac And then realised that I should have

Hello, we have one application which gets some data from our database but to print just one result it connects many times to the database over WAN. Of course there are some performance related problems with this type of work. I'd like to analyze (not necessary online) its tcp flow especially its latency (using port redirect on switch). Do you know any software (similar to tcpdump or so) which

Hi, we have CentOS ftp server (vsftpd) which has a lot of users who are writing and reading a lot of small files from/into its own accounts (and other servers - using samba client - are reading these files and putting them into outside database). Since this server is under heavy load its availability is important. >From time to time we "crash" this server (don't ask why ...) but

We have 4 lan''s (A, B, C, D). Linux router (2.4, iptables, iproute2) routes traffic between the lans. There is a WAN router in one of the lan''s as well so that users are able to reach WANs'' hosts. All lan''s are in one building: B | --------------- | | A --| router | -- C | |

Hi, I got such message: hostname inetd[111]: netbios-ns/udp server failing (looping), service terminated What does it mean ? How can I correct it ? By there przemol

HI, The question is a ZFS performance question in reguards to SAN traffic. We are trying to benchmark ZFS vx VxFS file systems and I get the following performance results. Test Setup: Solaris 10: 11/06 Dual port Qlogic HBA with SFCSM (for ZFS) and DMP (of VxFS) Sun Fire v490 server LSI Raid 3994 on backend ZFS Record Size: 128KB (default) VxFS Block Size: 8KB(default) The only thing

hello! First of all thank you for all your information you give us on this sites. It is a great help to learn for example dtrace. i''ve a little script in work, which shows the cpu utilization per process in percent. this output is refreshed every 2 seconds for example. now i want to extend this script with the output of the allocated bytes of memory per process. how could i display this

We are looking at the alternatives to VXVM/VXFS. One of the feature which we liked in Veritas, apart from the obvious ones is the ability to call the disks by name and group them in to a disk group. Especially in SAN based environment where the disks may be shared by multiple machines, it is very easy to manage them by disk group names rather than cxtxdx numbers. Does zfs offer such