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  • ESX hosts lose connectivity with iSCSI SAN LUNs

    - by Themist
    I've been experiencing this issue for a couple of months now where my ESX hosts lose connectivity with my iSCSI SAN vmfs volumes. As a results the ESX hosts enter a nonresponsive mode the associated VMs disconnect and the only remedy is to reboot the host. This issue happens randomly . I have escalated this issue with VMWare but I haven't had any solution to the issue yet. I see no errors on my switches and there are no hardware issues as well. My SAN infrastucture is solid and there are 2 paths for every vmfs volume. Did anybody else experienced a similar issue? Themis

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  • Remote Scripted Installation of Sun/Oracle JRE

    - by chrisbunney
    I'm attempting to automate the installation of a Debian server (debian 6.0 squeeze 64bit). Part of the installation requires the Sun JRE package to be installed. This package has a licence agreement, which has to be accepted. I have a script which uses the following lines to accept and install the JRE: echo "sun-java6-bin shared/accepted-sun-dlj-v1-1 boolean true" | debconf-set-selections apt-get install -y sun-java6-jre This works fine when executing the script locally. However, I need to execute the script remotely using the ssh command, e.g.: ssh -i keyFile root@hostname './myScript' This doesn't work. In particular, it fails on apt-get install -y sun-java6-jre. It would seem that in spite of me setting the licence agreement to accepted, when run remotely in this manner it is ignored. Despite setting the value to true, I still get prompted to manually accept the agreement when I run this command: ssh -i keyFile root@hostname 'apt-get install -y sun-java6-jre' I suspect it is something to do with environment that is taken care of when running a proper terminal session, but have no idea what to try next to fix it. So, what do I have to do to get this command (and hence my deployment script) to run correctly when executing it remotely? Or is there an alternative way that allows me to install the JRE remotely by another means? Edit 0: I have compared the output of env when executed remotely via ssh and when executed via a local terminal session. The only difference between the outputs is that the local terminal session has the additional value TERM=xterm.

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  • Synology DS210j & online backup: what do people recommend?

    - by Dean
    I've just purchased a Synology DS210j for my home network and would like to backup this NAS online. I noticed that DiskStation Manager v2.3 provides various options including Amazon S3 and rsync: Does anybody have some real usage against cost statistics for Amazon's S3 service? How is sensitive data protected on Amazon S3? Are there any rsync online backup options? If so, what do people recommend? UPDATE: I am still unable to find any decent answers to the above questions, can anybody help me out?

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  • Icinga error "Icinga Startup Delay does not exist" although it does

    - by aaron
    I just installed icinga to monitor my server following this guide: http://docs.icinga.org/0.8.1/en/wb_quickstart-idoutils.html Everything built and installed correctly, but icinga is reporting a critical error with the reason: "The command defined for service Icinga Startup Delay does not exist" However, I can see that ${ICINGA_BASE}/etc/objects/localhost.cfg contains: define service{ use local-service ; Name of service template to use host_name localhost service_description Icinga Startup Delay check_command check_icinga_startup_delay notifications_enabled 0 } and ${ICINGA_BASE}/etc/objects/commands.cfg contains: define command { command_name check_icinga_startup_delay command_line $USER1$/check_dummy 0 "Icinga started with $$(($EVENTSTARTTIME$-$PROCESSSTARTTIME$)) seconds delay | delay=$$(($EVENTSTARTTIME$-$PROCESSSTARTTIME$))" } both of these files had not been modified since the whole make/install process. I am running on Ubuntu 10.04, most recent build of icinga-core, and apache2 2.2.14 What must I do to tell Icinga that the command exists? Or is the problem that check_dummy does not exist? Where or how would I define that?

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  • Recommended motherboard with hardware raid for Linux

    - by luison
    Hi. We want to setup an internal office server for testing jobs (LAMP), email and samba. Only about 5-10 users. We are also considering starting to virtualize, initially by a base Ubuntu Server with Xen or VMWare Open Source server. Our current system runs with a Linux Raid which has worked great but it's always been complicated to recover the boot sector when one the drives fail and therefore I would prefer using now a hardware raid instead, but ideally with some kind of software monitoring. For this reason and considering we don't want to spend a fortune a I would appreciate any comments on the following options. Motherboard with RAID with linux support... which could you recommend. Motherboard + Hardware Raid card... Adaptec does not seem to have great Linux suppport. 3Ware seems to have a tc soft controller which we've used on a hosting company, but hard to find here in Spain. HP Proliant type basic server, which? Dell Small Servers... any good for Linux? Thanks in advance for any feedback.

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  • automysqlbackup not working weirdly on shared host

    - by KPL
    I'm on HostGator and I have not-root-level SSH access. I manually setup automysqlbackup in a /home/user/automysqlbackup folder. Created a file called runbackup in the same folder, chmod +x'ed it. The content : /home/user/automysqlbackup/automysqlbackup /home/user/automysqlbackup/myserver.conf Now, when I run ./runbackup from shell, no email is sent. I've setup a daily cron job. The crontab line reads - 24 06 * * * /home/user/automysqlbackup/runbackup When the crontab is run, I do get an email, but, the subject is WARNING: Error Reported - MySQL Backup Log and SQL Files for localhost - 012-03-19_06h24m The email does have an attachment, but it just has the SQL for creating tables. No data in the several rows at all. I don't know what wrong I'm doing and this is freaking me out! I tried writing a custom script as well, using this guide, but mutt doesn't send email, then. The OS used by HostGator is CentOS.

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  • Stress test speed on a gateway?

    - by TheLQ
    I'm interested in stress testing my gateway server but am lost on how. Most of the stress testing applications I've seen only see how much load an app like Apache can handle, but not this. Essentially I want to send as many packets I can into this box with one computer on one card and see how many come out the other in another computer just to get an idea of what kind of load this can handle. I'm also interested how Snort will perform. I'm not really sure how to do this though. What tools could you recommend that could do this?

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  • How to get decent WiFi despite a virtual Faraday cage

    - by MT_Head
    One of my clients is the local branch of an international airline. They have a small office in the secured area behind the ticket counters, and timeshare space at the ticket counter. I need to add a ticket printer out front, which I cannot (for contract/liability reasons) attach to the shared computer at the counter; the only workable solution seems to be to put the printer and its attached computer on a cart and connect to the office's network via WiFi. So far, no problem - right? Well, the terminal has been getting a facelift, which - among other things - includes decorative stainless-steel panels along the wall behind the ticket counters. This paneling acts as a seriously effective barrier to WiFi! The office's WiFi router - a brand-new D-Link DIR-815, dual-band 802.11n - is just on the other side of the pictured wall, and twenty feet or so to the right. And yet the only way I can connect AT ALL on this side of the wall is to stick the USB adapter (on the end of an extension cable) right into the crack between panels... and even then I can only see the 5GHz network, and that very weakly. Has anyone else had experience with this sort of misguided interior decoration? Any ideas on how I can improve reception on the other side of the barrier? (Needless to say, physical modifications of the environment - tempting though they might be - are strictly no-go.)

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  • Rails, Capistrano, Nginx, Unicorn - Application has been already initialized (RuntimeError)

    - by Andy Copley
    Can anyone shed some light on what exactly this error refers to? I'm having trouble deploying new versions of the site. I, INFO -- : reloading config_file=[snip]/current/config/unicorn.rb I, INFO -- : Refreshing Gem list E, ERROR -- : error reloading config_file=[snip]/current/config/unicorn.rb: Application has been already initialized. (RuntimeError) E, ERROR -- : [snip]/shared/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/application.rb:135:in `initialize!' E, ERROR -- : [snip]/shared/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/railtie/configurable.rb:30:in `method_missing' E, ERROR -- : [snip]/releases/20120907085937/config/environment.rb:5:in `<top (required)>' E, ERROR -- : [snip]/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:251:in `require' E, ERROR -- : [snip]/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:251:in `block in require' E, ERROR -- : [snip]/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:236:in `load_dependency' E, ERROR -- : [snip]/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:251:in `require' E, ERROR -- : config.ru:4:in `block in <main>' E, ERROR -- : [snip]/shared/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/builder.rb:51:in `instance_eval' E, ERROR -- : [snip]/shared/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/builder.rb:51:in `initialize' E, ERROR -- : config.ru:1:in `new' E, ERROR -- : config.ru:1:in `<main>' E, ERROR -- : [snip]/shared/bundle/ruby/1.9.1/gems/unicorn-4.3.1/lib/unicorn.rb:44:in `eval' E, ERROR -- : [snip]/shared/bundle/ruby/1.9.1/gems/unicorn-4.3.1/lib/unicorn.rb:44:in `block in builder' E, ERROR -- : [snip]/shared/bundle/ruby/1.9.1/gems/unicorn-4.3.1/lib/unicorn/http_server.rb:696:in `call' E, ERROR -- : [snip]/shared/bundle/ruby/1.9.1/gems/unicorn-4.3.1/lib/unicorn/http_server.rb:696:in `build_app!' E, ERROR -- : [snip]/shared/bundle/ruby/1.9.1/gems/unicorn-4.3.1/lib/unicorn/http_server.rb:677:in `load_config!' E, ERROR -- : [snip]/shared/bundle/ruby/1.9.1/gems/unicorn-4.3.1/lib/unicorn/http_server.rb:303:in `join' E, ERROR -- : [snip]/shared/bundle/ruby/1.9.1/gems/unicorn-4.3.1/bin/unicorn:121:in `<top (required)>' E, ERROR -- : [snip]/shared/bundle/ruby/1.9.1/bin/unicorn:23:in `load' E, ERROR -- : [snip]/shared/bundle/ruby/1.9.1/bin/unicorn:23:in `<main>' I, INFO -- : reaped #<Process::Status: pid 3182 exit 0> worker=0 I, INFO -- : reaped #<Process::Status: pid 3185 exit 0> worker=1 I, INFO -- : reaped #<Process::Status: pid 3188 exit 0> worker=2 I, INFO -- : reaped #<Process::Status: pid 3191 exit 0> worker=3 I, INFO -- : worker=0 ready I, INFO -- : worker=3 ready I, INFO -- : worker=1 ready I, INFO -- : worker=2 ready Unicorn.rb root = "/home/[user]/apps/[site]/current" working_directory root pid "#{root}/tmp/pids/unicorn.pid" stderr_path "#{root}/log/unicorn.log" stdout_path "#{root}/log/unicorn.log" listen "/tmp/unicorn.[site].sock", :backlog => 2048 worker_processes 4 preload_app true timeout 30 before_fork do |server, worker| defined?(ActiveRecord::Base) and ActiveRecord::Base.connection.disconnect! end after_fork do |server, worker| defined?(ActiveRecord::Base) and ActiveRecord::Base.establish_connection end Any help appreciated - I can pull more config files if required.

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  • Gitosis-init returns "Fatal Python error: <stdin> is a directory", why is this?

    - by Jasper Kennis
    I'm trying to get gitosis installed because I want to use Indefero and I need a deamon for the git:// protocol. However, following the instructions in the Git Pro book (http://progit.org/book/ch4-7.html) I run into trouble pretty soon. This is what happens: [x@x gitosis]# sudo -H -u git gitosis-init < /tmp/id_dsa.pub Fatal Python error: <stdin> is a directory Aborted The error is really vague to me and I didn't find anything helpful around, except that I think stdin is somehow part of C, which confuses me even more since the error is Python. I really don't understand what's going on, or where to look for clues, so I hope someone can tell me where to look next for more info on the problem. Tnx.

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  • Jetty - 401 Unauthorized when using basic authentication

    - by JP.
    I am running SOLR on jetty in Ubuntu (a bitnami VM, if that helps) and am trying to lock down access to both the admin pages and the update/delete/etc. pages using basic authentication. When I attempt to connect to the admin console via a web browser I am prompted for a user name and password, but the username and password I use simply does not work. For test purposes I am using foo:bar as the credentials, but I receive a '401 Unauthorized' response. I see the following in my request log. 127.0.0.1 - - [10/Nov/2013:05:35:46 +0000] "GET /solr/ HTTP/1.1" 401 1376 Am I doing something wrong and/or is there anything obviously incorrect with the below configuration? Any help is greatly appreciated. Jetty.xml <Call name="addBean"> <Arg> <New class="org.eclipse.jetty.security.HashLoginService"> <Set name="name">solr</Set> <Set name="config"><SystemProperty name="jetty.home" default="."/>/etc/realm.properties</Set> <Set name="refreshInterval">5</Set> </New> </Arg> </Call> /etc/realm.properties foo: bar, solr_admin webdefault.xml <security-constraint> <web-resource-collection> <url-pattern>/</url-pattern> </web-resource-collection> <auth-constraint> <role-name>solr_admin</role-name> </auth-constraint> </security-constraint> <login-config> <auth-method>BASIC</auth-method> <realm-name>solr</realm-name> </login-config>

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  • Can VMWare Server 2.0 be useful in Production for easing backups?

    - by Keith Sirmons
    Howdy, Let's run this idea by the group here. I am thinking about using VMWare Server in production to host a 2008 Domain Controller with DHCP and DNS, a 2008 member server with WSUS, some virus software, and other "management" utilities a second 2008 member server with SQL, IIS, and File Shares for a medium business of 50-100 desktops. The reason I am leaning toward Server vs ESXi is for backup purposes. Using ESXi, if I want to backup the VM's, I would need a second server in the office with enough storage availability to hold a copy of the vmdks. I am wondering if putting this virtual environment on top of a basic 2008 server install will allow for easier backups to both tape and/or to offsite storage using JungleDisk. Can a snapshot be triggered easily via a scheduled job? I know this doesn't necessarily handle file level restores, but I want to make sure in a DR situation, we can restore production servers quickly. Does this concept hold water? Would a very minimum install of the 2008 Host remove too many resources from the actual production machines? This would be a new Dell 410 server with 12 GB ram and (6) 600 GB 15K in a RAID 6, Dual Intel Xeon 2.26GHz procs.

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  • Security permissions for remote shared folders

    - by Tomas Lycken
    I have two servers running Windows Server 2003, and I want copy files from one server (A), programmatically with a windows service running under the Local System account, to a shared folder on the other (B). I keep getting "access denied" errors, and I can't figure out what security settings I need to set to open the shared folder for writing. This is what I've done on the recieving end: On A, right-click on the folder to share, choose the tab "Sharing" and select "Share this folder". Set a share name. Click "Permissions", add the group "Everyone" and give it full control. I tried choosing the "Security" tab to give some permissions there as well, but the "Add" dialog only finds local users, despite the fact that B shows up in the "Workgroup computers" dialog. After further inspection, this is the case also for the "Permissions" dialog under the "Sharing" tab (are they the same?).

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  • Recent ImageMagick on CentOS 6.3

    - by organicveggie
    I'm having a terrible time trying to get a recent version of ImageMagick installed on a CentOS 6.3 x86_64 server. First, I downloaded the RPM from the ImageMagick site and tried to install it. That failed due to missing dependencies: error: Failed dependencies: libHalf.so.4()(64bit) is needed by ImageMagick-6.8.0-4.x86_64 libIex.so.4()(64bit) is needed by ImageMagick-6.8.0-4.x86_64 libIlmImf.so.4()(64bit) is needed by ImageMagick-6.8.0-4.x86_64 libImath.so.4()(64bit) is needed by ImageMagick-6.8.0-4.x86_64 libltdl.so.3()(64bit) is needed by ImageMagick-6.8.0-4.x86_64 I have libtool-ltdl installed, but that includes libltdl.so.7, not libltdl.so.4. I have a similar problem with libHalf, libIex, libIlmImf and libImath. Typically, you can install OpenEXR to get those dependencies. Unfortunately, CentOS 6.3 includes OpenEXR 1.6.1, which includes ilmbase-devel 1.0.1. And that release of ilmbase-devel includes newer versions of those dependencies: libHalf.so.6 libIex.so.6 libIlmImf.so.6 libImath.so.6 I next tried following the instructions for installing ImageMagick from source. No luck there either. I get a build error: RPM build errors: File not found by glob: /home/sean/rpmbuild/BUILDROOT/ImageMagick-6.8.0-4.x86_64/usr/lib64/ImageMagick-6.8.0/modules-Q16/coders/djvu.* I even re-ran configure to explicitly exclude djvu and I still get the same error. At this point, I'm pulling my hair out. What's the easiest way to get a relatively recent version of ImageMagick ( 6.7) installed on CentOS 6.3? Does someone offer RPMs with dependencies somewhere?

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  • Proxy settings: Allowed hosts instead of ignored hosts

    - by tapir
    I'm using Ubuntu, as many proxy applications, GNOME Network Proxy Preferences only allow to ignore hosts. What I want to do is exactly the opposite. I only want to use the proxy for few sites. Is it possible to define only the allowed hosts in any way? PS: I know FoxyProxy add-on for Firefox does this, but 1)I don't use Firefox and 2)I want the proxy settings system wide not only for browser.

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  • How to push changes from Test server to Live server?

    - by anonymous
    As a beginner, I finally noticed the issue with making changes to the live server I've been working on, now that I have a couple users on it, since I bring it down so often. I created an EC2 image of my live server and set up a separate instance on EC2, so now I have 2 EC2 instances, Stage and Production. I set up GitHub and push changes to stage and test my code there, and when it's all done and working, I push it to the production branch, and everything is good. And there is a slight issue here since I name my files config_stage.js and config_production.js and set up .gitignore on each server, and in my code, I would have it read the ENV flags and set up the appropriate configs, is this the correct approach? And my main question is: how do you keep track of non-code changes to the server? For example, I installed HAProxy, Stunnel, Redis, MongoDB and several other things onto the Stage server for testing and now that it's all working and good, how do I deploy them to production? Right now, I'm just keeping track of everything I installed and copying configuration files over, which is very tedious and I'm afraid I may have missed a step somewhere. Is there a better way to port these changes over from my test server to my live server?

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  • Remote Desktop, Host: 2008, Client: Windows 7, The remote computer requires Network Level Authentica

    - by deerchao
    Hi, today I accidently changed one option of Teminal Services, I checked "Allow connections only from computers running Remote Desktop with Network Level Authentication". After that, I can't connect to my server any more. The error says: The remote computer requires Network Level Authentication, which your computer does not support. But my client pcs(both home and at office) are running Windows 7, as far as I know, it shoud support NLA; And in About dialog of Remote Desktop Connection there says "Supports Network Level Authentication". My server is running Windows Server 2008, placed in IDC center; I could connect to it before I change the settings. All other sevices(like IIS, SQL Server) are running normally. For clients, I tried two PCs running Windows 7, and two virtual windows XP machine running in Virtual PC and Virtual Box, all of them gives the same error message. Is there a way I can make things right without go to IDC which is far away? Thanks.

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  • Immutable hard links on ext3/4?

    - by shovas
    In my research on file versioning at the fs level, snapshotting, and related ideas, I took a look at hard-links and exactly what they are and how they behave. Using rsync you can get a pretty slick poor man's snapshotting system up and running on file systems that don't natively support it. But, can you get immutable hard links on ext3/4 or any other file systems for that matter? My definition for immutable hard link is: A hard link which, when changed on one location, becomes a regular copy and no longer a hard link. I would like this because it would enable snapshotting use of the source data to link against instead of a copy of the data (in the case of the rsync snapshotting technique). I have gigabytes of data that can't be duplicated due to space restrictions but I have enough room if I can intelligently snapshot individual changed files with the rest linked to the source not a copy. Given all that, is there some other technique, feature or technology I'm really looking for?

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  • SpamAssassin 2010 Bug still active on my mailserver despite the offending rule being fixed - where t

    - by Ibrahim
    The SpamAssassin 2010 bug was supposed to be fixed not long after the bug became widely known, and indeed the offending rule in my /usr/share/spamassassin/72_active.cf has been updated. However, incoming messages are still being tagged by this eg: X-Spam-Status: No, score=3.188 tagged_above=-999 required=6.31 tests=[BAYES_50=0.001, FH_DATE_PAST_20XX=3.188, SPF_PASS=-0.001] Here is the relevant rule: ##{ FH_DATE_PAST_20XX header FH_DATE_PAST_20XX Date =~ /20[2-9][0-9]/ [if-unset: 2006] describe FH_DATE_PAST_20XX The date is grossly in the future. ##} FH_DATE_PAST_20XX I'm on spamassassin/3.2.5-2+lenny1.1~volatile1 on Debian Lenny, completely up to date. Any pointers on where to look to figure out what's going on? I don't know anything about SpamAssassin; someone else usually manages this but I'm free right now and am trying to figure out what the problem is because it's been annoying us for a while and we only just realized this bug was still affecting us. Update: I've lowered the score for the FH_DATE_PAST20XX rule to 0.1, both in /etc/spamassassin/local.cf and /usr/share/spamassassin/50_scores.cf and it's still giving 3.188 points for this rule. Any idea what's going on? This really has me stumped. Update 2: It seems that after restarting amavisd, it's been fixed. What's the difference between amavisd and spamd? It seems like both should not be running, or something.

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  • SpamAssassin 2010 Bug still active on my mailserver despite the offending rule being fixed - where t

    - by Ibrahim
    The SpamAssassin 2010 bug was supposed to be fixed not long after the bug became widely known, and indeed the offending rule in my /usr/share/spamassassin/72_active.cf has been updated. However, incoming messages are still being tagged by this eg: X-Spam-Status: No, score=3.188 tagged_above=-999 required=6.31 tests=[BAYES_50=0.001, FH_DATE_PAST_20XX=3.188, SPF_PASS=-0.001] Here is the relevant rule: ##{ FH_DATE_PAST_20XX header FH_DATE_PAST_20XX Date =~ /20[2-9][0-9]/ [if-unset: 2006] describe FH_DATE_PAST_20XX The date is grossly in the future. ##} FH_DATE_PAST_20XX I'm on spamassassin/3.2.5-2+lenny1.1~volatile1 on Debian Lenny, completely up to date. Any pointers on where to look to figure out what's going on? I don't know anything about SpamAssassin; someone else usually manages this but I'm free right now and am trying to figure out what the problem is because it's been annoying us for a while and we only just realized this bug was still affecting us. Update: I've lowered the score for the FH_DATE_PAST20XX rule to 0.1, both in /etc/spamassassin/local.cf and /usr/share/spamassassin/50_scores.cf and it's still giving 3.188 points for this rule. Any idea what's going on? This really has me stumped. Update 2: It seems that after restarting amavisd, it's been fixed. What's the difference between amavisd and spamd? It seems like both should not be running, or something.

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  • DNS Round-robin failover and load balancing

    - by Tom O'Connor
    Having read all of the questions and answers (1 2 3 and so on) on here relating to DNS load balancing, and Round-robin DNS, there's still a number of unanswered questions.. Large companies, and I'm looking at Google, Facebook and Twitter here, do present multiple A records. 1) If DNS loadbalancing/failover is so dodgy, why do large organisations do it? There seems to be very little mention of "DNS Pinning", despite this (PDF) paper about it. 2) Why is DNS Pinning so seldom mentioned? 3) Are there any concrete examples of which ISPs and so on actually do rewrite DNS TTLs? That said, I'm not entirely backing the side for using DNS for failover or any form of load balancing. For most networks, BGP diverse routing still seems to be a better fit. DNS rears it's ugly head again. :(

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  • Weblogic SSL Configuration 10.3 Steps

    - by ssd
    Hello, I am currently looking to install ssl on weblogic 10.3. There are is tons of info on oracle website however it seems to be shattered all over the place. is there a weblogic expert who can provide the steps for the following: setup ssl with self signed certificate (from scratch) setup ssl with CA from Verisign (from scratch) Thank you

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  • Disk performance below expectations

    - by paulH
    this is a follow-up to a previous question that I asked (Two servers with inconsistent disk speed). I have a PowerEdge R510 server with a PERC H700 integrated RAID controller (call this Server B) that was built using eight disks with 3Gb/s bandwidth that I was comparing with an almost identical server (call this Server A) that was built using four disks with 6Gb/s bandwidth. Server A had much better I/O rates than Server B. Once I discovered the difference with the disks, I had Server A rebuilt with faster 6Gbps disks. Unfortunately this resulted in no increase in the performance of the disks. Expecting that there must be some other configuration difference between the servers, we took the 6Gbps disks out of Server A and put them in Server B. This also resulted in no increase in the performance of the disks. We now have two identical servers built, with the exception that one is built with six 6Gbps disks and the other with eight 3Gbps disks, and the I/O rates of the disks is pretty much identical. This suggests that there is some bottleneck other than the disks, but I cannot understand how Server B originally had better I/O that has subsequently been 'lost'. Comparative I/O information below, as measured by SQLIO. The same parameters were used for each test. It's not the actual numbers that are significant but rather the variations between systems. In each case D: is a 2 disk RAID 1 volume, and E: is a 4 disk RAID 10 volume (apart from the original Server A, where E: was a 2 disk RAID 0 volume). Server A (original setup with 6Gpbs disks) D: Read (MB/s) 63 MB/s D: Write (MB/s) 170 MB/s E: Read (MB/s) 68 MB/s E: Write (MB/s) 320 MB/s Server B (original setup with 3Gpbs disks) D: Read (MB/s) 52 MB/s D: Write (MB/s) 88 MB/s E: Read (MB/s) 112 MB/s E: Write (MB/s) 130 MB/s Server A (new setup with 3Gpbs disks) D: Read (MB/s) 55 MB/s D: Write (MB/s) 85 MB/s E: Read (MB/s) 67 MB/s E: Write (MB/s) 180 MB/s Server B (new setup with 6Gpbs disks) D: Read (MB/s) 61 MB/s D: Write (MB/s) 95 MB/s E: Read (MB/s) 69 MB/s E: Write (MB/s) 180 MB/s Can anybody suggest any ideas what is going on here? The drives in use are as follows: Dell Seagate F617N ST3300657SS 300GB 15K RPM SAS Dell Hitachi HUS156030VLS600 300GB 3.5 inch 15000rpm 6GB SAS Hitachi Hus153030vls300 300GB Server SAS Dell ST3146855SS Seagate 3.5 inch 146GB 15K SAS

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  • Feedback request: Linode for Magento hosting?

    - by Ernest
    Hello, i install and customize a self made application for web pages which uses spring+jstl and the admin uses flex. Also i want to add to my offers an ecommerce cms, so i have decided to start with magento. I'm using daily razor vps, however i was thinking in switching to linode because of the price. My questions are: 1.- Is linode good for magento ? 2.- is linode good for java+tomcat+jstl+mysql apps ? 3.- What are the most demanding resources to magento ? CPU ? RAM ? Does it consumes more if i have more products? Well i hope to learn from you, this page is always so helpful UPDATE: A final question: 4.- Do you recomend another vps service for my requieriments ?

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  • Running perfmon continuously with periodic files

    - by Sal
    I have a question very similar to this one, but I want to continuously run perfmon, during reboots and throughout the day. Further, I'd like to generate a perfmon report every 10 mins or so. The original question tells me how to run perfmon when the server is restarted, but I don't know how to make perfmon continuously run while throwing periodic files. I've tried setting it as a scheduled task that needs to be done every 10 mins, but this is too sloppy, and when the scheduled task kicks another instance, the current perfmon report writer crashes, and I get a garbage report. I've also tried writing a sloppy batch script that would fire off the task at scheduled intervals, but this is the same problem as the scheduled task. I'm sure I'm just missing something silly, but I don't see it. Ideas? (If it helps, I'm running Windows 7 locally, and I'm trying to set up the processes for boxes running Windows 2008.)

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