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  • Is Error Recovery Control or TLER necessary for software RAID5 using LVM

    - by Vincent Davis
    I ave been told that for RAID configurations you don't what to use standard desktop drives because they when/if they enter a error recovery mode they might time out and get dropped from the raid. Is this true for LVM software RAID or this this a hardware RAID issue primarily?. We are running this server primarily as a backup server and would like to take advantage of the lower price of the desktop drives.

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  • Subsumption architecture vs. perceptual control theory

    - by Yasir G.
    I'm a new person to AI field and I have to research and compare 2 different architectures for a thesis I'm writing. Before you scream (homework thread), I've been reading on these 2 topics only to find that I'm confusing myself more.. let me first start with stating briefly what I know so far. Subsumption is based on the fact that targets of a system are different in sophistication, thus that requires them to be added as layers, each layer can suppress (modify) the command of the layers below it, and there are inhibitors to stop signals from execution lets say. PCT stresses on the fact that there are nodes to handle environmental changes (negative feedback), so the inputs coming from an environment go through a comparator node and then an action is generated by that node, HPCT or (Hierarchical PCT) is based on nesting these cycles inside each other so a small cycle to avoid crashing would be nested in a more sophisticated cycle that targets a certain location for example. My questions, am I getting this the right way? am I missing any critical understanding about these 2 models? also any idea where I can find simplified explanations for each theory (so far been struggling trying to understand the papers from Google scholar :< ) /Y

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  • Date Compare Validator Control ASP.NET

    - by Sahanr
    Compare two input dates to avoid invalid dates. In this example I have created two textboxes and namded as "TextBoxSeminarDate" and "TextBoxBookingDeadline". Booking deadline date must be before date to the Seminar date. Therefore I used Operator as "LesThanEqual". I have validated "TextBoxBookingDeadline" value comparing with the "TextBoxSeminarDate" value as follow.   <asp:CompareValidator ID="CompareValidatorBookingDeadline" runat="server" ControlToCompare="TextBoxSeminarDate" ControlToValidate="TextBoxBookingDeadline" Display="Dynamic" ErrorMessage="Please check the seminar date and select appropriate date for booking deadline" Operator="LessThanEqual" Type="Date"  ValueToCompare="<%= TextBoxSeminarDate.Text.ToShortString() %>">*</asp:CompareValidator> The important thing is "ValueToCompare" property of the compare validator. Here I have assined it to the value of the TextboxSeminarDate and then compered it with the booking deadline date.  

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  • How do I access Glassfish V3 Administration Console Website from a remote host

    - by Tom
    I have installed Glassfish v3 on a standalone server running ubuntu-server 9.10. I can open the Admin website if I use a browser running on the server by browsing to: http:// localhost:4848/ I would like to access it from a remote machine by browsing to something like http:// mydomain.com:4848/ The firewall is definitely allowing traffic through on that port (4848) and I can access the application server by browsing to: http:// mydomain.com:8080/ How can I allow remote access to the administration website?

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  • C# Windows Aero Style Wizard Control

    I have been a fan of the Windows Aero styled windows since Aero was first introduced in Windows Vista. However, there is little to no Aero inclusion in the .NET framework, so I set out to create my own Windows Aero themed form.

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  • git encrypt/decrypt remote repository files while push/pull

    - by UncleMiF
    Is it possible to automatically encrypt files via 'git push' before transferring to a remote repository? And automatically decode them while 'git pull'. I.e, if I have some remote server with shared access with git repository there, and I don't want to our project was stolen without a permission... Maybe there is some special git-hooks before push and after pull?

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  • "Oracle Enterprise Manager Grid Control Advanced OEM Techniques for the Real World" Book - My Humble Review

    - by cristobal.soto(at)oracle.com
    After reviewing this book, I am really amazed with it. I really recommend it, specially if you work with these tools (BPEL, SOA Suite and/or OSB), if you are a SOA Architect and/or if your work is focused on production environments.This book provides valuable and useful information for monitoring and automation tasks.In the books is very clearly explained and with screenshots (which makes it even easier to read, understand and follow) how to perform several tasks that are necessary to keep a correct performance on the production environments and the subtasks that must be executed on them.The test sections on chapters 3, 10 and 13 (SOAP tests for partner links and BPEL processes, service tests on web applications, and SOAP test OSB proxy and business service endpoints) look specially interesting for me and I really liked to see that there is special emphasis on the use of WebLogic Server as well.For further information and order the book, please go to the Packt Publishing web site.

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  • Incremental backup up from a remote ftp box to a Windows server

    - by user65712
    I need to backup a website to a Windows server every week and I only have access to remote FTP. I'd like to use an incremental backup program so that I can just copy the files every week on a schedule and not worry too much about the size of the backups becoming an issue. Unfortunately, I can't find a Windows program that will automatically make incremental backups of specific FTP folders and files, as most programs are designed to backup to FTP, not from it. Are there any applications that can do this? I also have a Ubuntu 10.04 box I could use to relay the site to the Windows server if I needed to run Linux programs, but I would prefer a Windows-only solution over a Linux/Windows one, and a combined Linux/Windows solution over not having it work at all.

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  • haproxy - pass original / remote ip in tcp mode

    - by Vito Botta
    I've got haproxy set up with keepalived for load balancing and ip failover of a percona cluster, and since it works great I'd like to use the same lb / failover for another service/daemon. I've configured haproxy this way: listen my_service 0.0.0.0:4567 mode tcp balance leastconn option tcpka contimeout 500000 clitimeout 500000 srvtimeout 500000 server host1 xxx.xxx.xxx.xx1:4567 check port 4567 inter 5000 rise 3 fall 3 server host2 xxx.xxx.xxx.xx2:4567 check port 4567 inter 5000 rise 3 fall 3 The load balancing works fine, but the service sees the IP of the load balancer instead of the actual IPs of the clients. In http mode it's quite easy to have haproxy pass along the remote IP, but how do I do in tcp mode? This is critical due to the nature of the service I need to load balance. Thanks! Vito

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  • How does Windows Remote Desktop Connection Work?

    - by Devoted
    How does Windows Remote Desktop connection work? An IP address is used to connect to the computer but....how can that IP be accessed from anywhere? If, for example, the IP address is 192.168.1.55, there MUST be another 192.168.1.55 somewhere else in the world. How does Remote Desktop know which one to connect to? Thanks so much

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  • rsync bash script to backup specific directories nightly to remote server

    - by Janice Young
    Hello, I am looking for a rsync script that will backup specific directories from my home machine to a remote server nightly. So say: /home/me/Pictures to ssh -p 6587 [email protected]/Pictures. It would be nice if it can look for changes but im not worried so much about the changes aspect is having a script that runs at a certain time of night with cron or however. I have googled and found scripts but those scripts were specific to the operations of those creators. Any help would be happily accepted as the scripted part really throws me off. Thank you, Janice

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  • Statistical Software Quality Control References

    - by Xodarap
    I'm looking for references about hypothesis testing in software management. For example, we might wonder whether "crunch time" leads to an increase in defect rate - this is a surprisingly difficult thing to do. There are many questions on how to measure quality - this isn't what I'm asking. And there are books like Kan which discuss various quality metrics and their utilities. I'm not asking this either. I want to know how one applies these metrics to make decisions. E.g. suppose we decide to go with critical errors / KLOC. One of the problems we'll have to deal with with that this is not a normally distributed data set (almost all patches have zero critical errors). And further, it's not clear that we really want to examine the difference in means. So what should our alternative hypothesis be? (Note: Based on previous questions, my guess is that I'll get a lot of answers telling me that this is a bad idea. That's fine, but I'd request that it's based on published data, instead of your own experience.)

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  • Remote controller load testing

    - by SonOfOmer
    Hi everyone, I am trying to run a load test from remote controller and I get this error. Failed to queue test run 'username@computername 2010-04-15 06:06:03': Object of type 'Microsoft.VisualStudio.TestTools.LoadTesting.LoadTestConstantLoadProfile' cannot be converted to type 'Microsoft.VisualStudio.TestTools.WebStress.WebTestLoadProfile'. Running unit test from remote controller works just fine. Thanks.

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  • View status of service running on remote machine

    - by tunwn
    The conditions are - I don't have administrator privilege - I want to see the status of a service in remote machine (server) I use the following code (vb.net with framework 2.0) to see the status Dim sqlSvc As ServiceController Svc = New ServiceController(My.Settings.serviceName, My.Settings.machineName) If sqlSvc.Status.ToString.Equals("Running") Then displayStatus("success", sqlSvc.Status.ToString) Else displayStatus("error", sqlSvc.Status.ToString) End If When running the code, InvalidOperationException is raised and found out that I need admin right in the server. Can I lookup the status of the service without having admin right in remote machine ?

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  • MySQL on a laptop for remote workers - MyISAM keeps corrupting

    - by Jonathon
    We have an application that is used by remote, mobile workers. It intalls WAMP (Server2Go) on a laptop and uses MySQL to store data locally. All tables are MyISAM. Once a day, the workers sync the database to our central server via HTTP scripts that query the data and post it to our site. The problem is that many of these laptop database tables are corrupting continually. It appears that MySQL acts like it saves the information (I don't get any query errors), but the table gets corrupt. I have to repair the table constantly (which removes several rows of data in the process). Does anyone have any ideas about how to work around this problem? Would it be wise to switch to InnoDB on the laptops? How about a different database system altogether. I have looked at MySQL Embedded, but it appears to be the same engine as the regular MySQL.

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  • Conflict between Change Control and ASL Mapping

    - by Jie Chen
    Yesterday I got one strange report that on Agile 9.3.1.2, adding a Supplier into Item's Supplier tab will always remove all the data from Item.PageTwo.MultiList01 field which is assigned to a User Group list. The detailed problem description is like below. In JavaClient, MultiList01 attribute on Parts class's PageTwo tab is enabled and assigned with User Group list. On WebClient, user created a new Part and assign MultiList01 with two UserGroups: "Global User Group Test1" and "Personal Group_Test1". Then go to Suppliers tab to add three Suppliers. Switch back to Part's TitleBlock, will see MultiList01 loses the User Group data. To confirm if MultiList01 really loses the data or it saves with other wrong data, I need to check the database and find strange data that MultiList01 saves wrong data ",7976911,7976907,7976959,", which are exactly the ID of these three Suppliers. Then I can suspect the Supplier attribute on Suppliers tab must be mapped to MultiList01. However when I check Supplier in JavaClient, the "ASL mapped to" is blank. More interesting thing is the database clearly shows Supplier attribute (Base ID =2000004219) is mapped to 2090, which is PageTwo.MultiList01 Base ID. Till now, we can get a conclusion that Supplier data is really mapped to MultiList01, though we assign MultiList01 to User Group list and Supplier does not set "ASL mapped to". It must be another function which overrides "ASL mapped to" visibility in JavaClient with high priority. That is the "Change Controlled" function. We immediately see "ASL mapped to" with value "MultiList01" when we disable Change Controlled for Multilist01 If one attribute is Change Controlled, Supplier data cannot be mapped to this attribute theoretically because Supplier could be dynamically modified by users, not by Changes. In real situation of Agile 9.3.1.2, it could be a Code Defect. We can imagine the scenario customer met. He setup Parts.PageTwo.Multilist01 assigned with Supplier list, then in Parts.Suppliers.Supplier attribute, he set "ASL mapped to" to "Multilist01". Later company business is changed, so he set Multilist01 with Change Controlled and re-assign with User Group list. He forgot to remove "ASL mapped to" before he did modifications to Multilist01. Finally we know the solution, it depends on real business. If still need to mapping Supplier to Parts.PageTwo attribute, should modify "ASL mapped to" to other one attribute which already has assigned with Suppliers list. If do not need "ASL mapped to" function, should delete the data from database level. We cannot do it from JavaClient UI. delete propertytable where id in (select p.id from propertytable p, nodetable n where p.parentid =n.id and n.inherit=2000004219 and propertyid=794)

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  • Control Your SEO Efforts With a Link Tracker

    Link exchanges are great way to achieve visibility for your website but they can also be a monumental waste of time, effort, and money if you are not taking advantage of link tracker technology. For webmasters not familiar with exchanging links, they are a basic technique whereby you display another website's link on your website in return for your link on their site.

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  • Cannot Ping a server after configuring the Routing and Remote Access Services

    - by stacker
    After configuring the Routing and Remote Access Services to be a both VPN and NAT service, I cannot ping that server anymore from the external side. But when I configure it to be just a VPN server, or just a NAT server, I do able to ping it from the external side. My configuration is like: DC: 192.168.20.11 VPN and NUT: Nic 1: 192.168.20.1, NIC 2: 192.168.147.171 Client: 192.168.147.1 The mask is always: 255.255.255.0 I cannot understand why when configuring the VPN server to be a VPN and NAT, I cannot ping the server anymore.

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  • hide cursor on remote terminal

    - by Tyler
    I have an open socket to a remote terminal. Using this SO answer I was able to put that terminal into character mode. My question is, how do I hide the cursor in the remote terminal using this method? Thanks!

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  • Dark screen when wake / Unable to control screen brightness

    - by John
    Running Ubuntu 11.04 on Lenovo ThinkPad with an Nvida graphics card. The unit goes to sleep when the lid is shut. (The unit goes to suspend mode (not to disk/hibernate), AC gets turned off, running on battery) Upon lid-open sometimes the screen is almost too dark to read. I'm really not sure of the exact cause, (very low batt??). The only fix is a reboot. The screen brightness buttons have never worked in Ubuntu. I have messed w/ the power management preferences. No change. At one point I messed w/ the gnome settings. No change. I have tried a few cmds: echo 9>/sys/class/backlight/acpi_video0/brightness setpci -s 00:02.0 F4.B=10 xgamma -gamma .75 None of these help. Most have zero effect. I think it is and acpi thing, but that is just a guess. I'm out of idea's, and looking for suggestions. Thanks

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