moriarty - Developer IT

What are the most important aspects to consider when choosing a SAN for a small office virtualizatio

- by Prof. Moriarty

I am in the process of consolidating 6 physical servers running 6 different operating system flavors (don't ask) into two identical physical servers (Dell PowerEdge 2900), using the free VMware ESXi 4.0 platform. We will install an iSCSI SAN over a 1GbE network, and store all virtual machine images on the SAN. Each physical server would run 3 VMs, and in the case of a physical server failure, we would manually switch over the other 3. These are all internal servers, while important, they can tolerate some amount of downtime (say <1h) to keep cost and complexity associated with HA down. I now need to choose the SAN to be used for the setup, on a low budget. We currently have about 2TB of data, but of course I want to able to grow, do backups of VM snapshots on other drives and remove them to a different location, etc. So what I would like to know is: Which are the must have features for this setup, without which using a SAN is not worth it? We are mostly a Dell shop, so I have been looking at the EqualLogic PS4000E High Availability model. Any opinions, anecdotes, bad experiences with this model? (This is one of the few models which could accomodate our existing disks from the physical servers.) If you can recommend something that is not Dell, but it has better value, I would most definitely consider it. Caveats, things to look out for?

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Booting Linux from External HDD, with persistence

- by Moriarty

I am trying to install Linux, specifically Lubuntu or BackTrack 5 on an external HDD (Seagate FreeAgent GoFlex) but I have had no luck using YUMI, or Untebootin to get it working. I want the hard drive to be able to save the data within Linux (As in, If I install a program, it will stay there). I also tried doing this with a flash drive, which does boot, but it does not save data (I tried following Pendrive's tutorial on creating a casper-rw file and adding "persistent" to various files, but I cannot get it to save files. Basically, I just want a form of linux on a portable device that will save files and settings between boots Note: I do not have a CD to install from. Any help would be greatly appreciated, Thanks!

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Issue with Sharepoint 2010 application page

- by Matt Moriarty

I am relatively new to Sharepoint and am using version 2010. I am having a problem with the following code in an application page I am trying to build: using System; using Microsoft.SharePoint; using Microsoft.SharePoint.WebControls; using System.Text; using Microsoft.SharePoint.Administration; using Microsoft.Office.Server; using Microsoft.Office.Server.UserProfiles; using Microsoft.SharePoint.Utilities; namespace SharePointProject5.Layouts.SharePointProject5 { public partial class ApplicationPage1 : LayoutsPageBase { protected void Page_Load(object sender, EventArgs e) { SPContext context = SPContext.Current; StringBuilder output = new StringBuilder(); using(SPSite site = context.Site) using (SPWeb web = site.AllWebs["BDC_SQL"]) { UserProfileManager upmanager = new UserProfileManager(ServerContext.GetContext(site)); string ListMgr = ""; string ADMgr = ""; bool allowUpdates = web.AllowUnsafeUpdates; web.AllowUnsafeUpdates = true; web.Update(); SPListCollection listcollection = web.Lists; SPList list = listcollection["BDC_SQL"]; foreach (SPListItem item in list.Items) { output.AppendFormat(" From List - Name & manager: {0} , {1}", item["ADName"], item["Manager_ADName"]); UserProfile uProfile = upmanager.GetUserProfile(item["ADName"].ToString()); output.AppendFormat(" From Prof - Name & manager: {0} , {1}", uProfile[PropertyConstants.DistinguishedName], uProfile[PropertyConstants.Manager]); ListMgr = item["Manager_ADName"].ToString(); ADMgr = Convert.ToString(uProfile[PropertyConstants.Manager]); if (ListMgr != ADMgr) { output.AppendFormat(" This record requires updating from {0} to {1}", uProfile[PropertyConstants.Manager], item["Manager_ADName"]); uProfile[PropertyConstants.Manager].Value = ListMgr; uProfile.Commit(); output.AppendFormat(" This record has had its manager updated"); } else { output.AppendFormat(" This record does not need to be updated"); } } web.AllowUnsafeUpdates = allowUpdates; web.Update(); } Label1.Text = output.ToString(); } } } Everything worked fine up until I added in the 'uProfile.Commit();' line. Now I am getting the following error message: Microsoft.SharePoint.SPException was unhandled by user code Message=Updates are currently disallowed on GET requests. To allow updates on a GET, set the 'AllowUnsafeUpdates' property on SPWeb. Source=Microsoft.SharePoint ErrorCode=-2130243945 NativeErrorMessage=FAILED hr detected (hr = 0x80004005) NativeStackTrace="" StackTrace: at Microsoft.SharePoint.SPGlobal.HandleComException(COMException comEx) at Microsoft.SharePoint.Library.SPRequest.ValidateFormDigest(String bstrUrl, String bstrListName) at Microsoft.SharePoint.SPWeb.ValidateFormDigest() at Microsoft.Office.Server.UserProfiles.UserProfile.UpdateBlobProfile() at Microsoft.Office.Server.UserProfiles.UserProfile.Commit() at SharePointProject5.Layouts.SharePointProject5.ApplicationPage1.Page_Load(Object sender, EventArgs e) at System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) at System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) at System.Web.UI.Control.OnLoad(EventArgs e) at Microsoft.SharePoint.WebControls.UnsecuredLayoutsPageBase.OnLoad(EventArgs e) at Microsoft.SharePoint.WebControls.LayoutsPageBase.OnLoad(EventArgs e) at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) InnerException: System.Runtime.InteropServices.COMException Message=<nativehr>0x80004005</nativehr><nativestack></nativestack>Updates are currently disallowed on GET requests. To allow updates on a GET, set the 'AllowUnsafeUpdates' property on SPWeb. Source="" ErrorCode=-2130243945 StackTrace: at Microsoft.SharePoint.Library.SPRequestInternalClass.ValidateFormDigest(String bstrUrl, String bstrListName) at Microsoft.SharePoint.Library.SPRequest.ValidateFormDigest(String bstrUrl, String bstrListName) InnerException: I have tried to rectify this by adding in code to allow the unsafe updates but I still get this error. Does anyone have any guidance for me? It would be much appreciated. Thanks in advance, Matt.

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Python ctypes argument errors

- by Patrick Moriarty

Hello. I wrote a test dll in C++ to make sure things work before I start using a more important dll that I need. Basically it takes two doubles and adds them, then returns the result. I've been playing around and with other test functions I've gotten returns to work, I just can't pass an argument due to errors. My code is: import ctypes import string nDLL = ctypes.WinDLL('test.dll') func = nDLL['haloshg_add'] func.restype = ctypes.c_double func.argtypes = (ctypes.c_double,ctypes.c_double) print(func(5.0,5.0)) It returns the error for the line that called "func": ValueError: Procedure probably called with too many arguments (8 bytes in excess) What am I doing wrong? Thanks.

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Python - network buffer handling question...

- by Patrick Moriarty

Hi, I want to design a game server in python. The game will mostly just be passing small packets filled with ints, strings, and bytes stuffed into one message. As I'm using a different language to write the game, a normal packet would be sent like so: Writebyte(buffer, 5); // Delimit type of message Writestring(buffer, "Hello"); Sendmessage(buffer, socket); As you can see, it writes the bytes to the buffer, and sends the buffer. Is there any way to read something like this in python? I am aware of the struct module, and I've used it to pack things, but I've never used it to actually read something with mixed types stuck into one message. Thanks for the help.

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R- delete rows in multiple columns by unique number

- by Vincent Moriarty

Given data like this C1<-c(3,-999.000,4,4,5) C2<-c(3,7,3,4,5) C3<-c(5,4,3,6,-999.000) DF<-data.frame(ID=c("A","B","C","D","E"),C1=C1,C2=C2,C3=C3) How do I go about removing the -999.000 data in all of the columns I know this works per column DF2<-DF[!(DF$C1==-999.000 | DF$C2==-999.000 | DF$C3==-999.000),] But I'd like to avoid referencing each column. I am thinking there is an easy way to reference all of the columns in a particular data frame aka: DF3<-DF[!(DF[,]==-999.000),] or DF3<-DF[!(DF[,(2:4)]==-999.000),] but obviously these do not work And out of curiosity, bonus points if you can me why I need that last comma before the ending square bracket as in: ==-999.000),]

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I am attempting to pull all years and terms from database except the last term

- by Jonathan Moriarty

I have a logic problem: We have a database that has a donations table with name, address, last donation year, and last donation term (Spring and Fall). We want to pull all donors unless they donated in the last term (Spring or Fall). I have been trying to figure out the logic of pulling all years up to the current year while omitting the last term. So for example this year is 2012 and we are in the Spring term (I defined the spring term between 1/1 and 6/30) so I only want to display donors before and including spring 2011 (we will exclude the current term which is spring 12 and the last term which is fall 2011). The problem is I want to pull sprig 2011, fall 2010, spring 2010 etc, but only omit the current term and last term donated.

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