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• Cant access Dell BMC IPMI Over IP

  - by Bobb

  I have Dell R210 with iDRAC BMC (new name for old BMC). Which is on-board feature with shared NIC (I believe). Server is on colocation and I didnt set it up before sent there... So I asked for the remote hands to setup IPMI Over IP. They enabled it, set the IP and everything. The IP is different than main box IP. Also the box is cabled to NIC1 and the BMC supposed to share it (am I right?) I can see new IP in the Open Server Administrator (installed on the box). I tried Supermicro IPMI tool and I tried Dell ipmish.exe command like this ipmish -ip xxx -u root -p calvin sysinfo gives BMC is not detected What could be wrong? is there a diagnostics tool I can try? It must be something obvious. I just never used things like that before.... P.S. I read something about encryptions key in the Dell docs. But I understand that is for encrypted IPMI 2.0 and ipmish can use IPMI 1.5 without encryption.

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• RDMA architecture - do you need adapters on both ends?

  - by Bobb

  I know Linux can use RDMA NICs like Solarflare... I just found Intel has something like that NetEffect cards. But Intel is talking all about clusters.. Can someone please explain. If I want low-latency networking and install RDMA NIC on my server. Is there limitation on where the cable can go? Is there a specific device expected on the other end? Is it special RDMA switch or RDMA adapter before switch or what? Why is this cluster talk? What if I want a single server with Windows (I can install HPC Windows or Windows 2008 R2)?

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• Intel PRO/1000 Server NIC on Windows latency. How to measure?

  - by Bobb

  Please note - this question is about latency of the card itself. Not latency of internet or anything else. Thank you for your attention on this matter. It is often said that good server NIC does make difference compared to low grade cards and on-board Ethernet chips. I understand that on-board chip will likely consume CPU time and stand-alone card would use its own chip. Also server card would be faster than low-grade card. Are these 2 facts explaining most of the server cards advantages over on-board and low-grade cards ethernet? How would you measure latency on the card itself? I saw some reports stating some microseconds figures of NIC latency but I dont see how to measure that... Any advise will be appreciated.

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• How Windows Server routes PTP v2 unicast messages?

  - by Bobb

  If my server is placed in PTP v2 enabled network which has grand master clock. And the switch is PTP aware. The server is W2008R2 (soon to be W2012). I also have PTP v2 software client. How does the master clock messages are getting on with Windows Server? Does it need special PTP-aware NIC or it will be treated as normal networking traffic and the software receives it through regular NIC no problem?

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• C# sends SQL data 4 times less from one box than from another

  - by Bobb

  W2003, .NET 3.5, SQL 2008 I have prod and UAT app servers deployed in 2 different data centres. I have a C# app which reads text file, parse the text and sends the data to the SQL in bulk. SQL server is in US and the app servers are in London (but in different places). All POPs have dedicated network connections. There is no public internet involved. When the app runs on UAT server I can see in Perfmon that the Send byte/sec is x4 higher than from production server. My estimate is that one server outputs at 1 MB/s and the other at 250 KB/s rate. My suspicion immediately is that there is a router on one of the DCs which shapes traffic or does QoS limitation on traffice from London to US. However support and Windows team and networkig team all are saying that there are no differences in neither networking config on the 2 DCs nor NIC config on the 2 app server... How to find out why is the networking bottlneck is 4 times tighter in one place than in the other? What can I do about it?

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• Simple electric DC question. Currency consumption

  - by Bobb

  Suppose you have DC power supply and a consumer connected to it (i.e. computer PSU and a hard drive). Suppose PSU which was supplied with the consumer has output 5V 1A. So I assume that the consumer should not consume more than 1A. Suppose the original PSU is broken now and I want to replace it with the one I have which is 5V 10A. My guess is that current is something which depends on the consumer. So if the consumer consumes normally 1A then it will not consume more than that even if it is connected to 10A PSU. In other word - am I right assuming that the consumer will not burn out being connected to a power supply with higher current output? P.S. my understanding is that voltage is something independent from the consumer. If you give it higher voltage it will burn (voltage is from PSU to the consumer). However current must be in opposite - consumer sucks as much current as it need not as much as PSU can provide (of course given that max PSU current is greater than the consumer needs)

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• how to install a program for all users on Windows 8?

  - by Bobb

  when I install stuff under built-in Administrator - the other users cannot see the changes. for example I changed VS2012 install - added Blend and few other features - and they are invisible under another user - my 'Microsoft account' ... I surely don't want this kind of behavior. Can it be changed? EDIT: I want those apps 'legitimately installed' for all users so I can use Search and see them on my Start screen.

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• How to apply Outlook Junk Mail rules using Hotmail Connector?

  - by Bobb

  I use Outlook 2010 with Hotmail connector. MS says that you can sync your Outlook rules with your Hotmail but I cant see how. My actual problem is - I add a guy to my Junk blocked senders list (and I check it visually - it is in the list). But I keep receiving emails from this guy. It doesnt go to the Junk folder in Outlook. I need my Outlook to honor the rules locally at least. Is it possible?

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• Simple electric DC question. Current consumption

  - by Bobb

  Suppose you have DC power supply and a consumer connected to it (i.e. computer PSU and a hard drive). Suppose PSU which was supplied with the consumer has output 5V 1A. So I assume that the consumer should not consume more than 1A. Suppose the original PSU is broken now and I want to replace it with the one I have which is 5V 10A. My guess is that current is something which depends on the consumer. So if the consumer consumes normally 1A then it will not consume more than that even if it is connected to 10A PSU. In other word - am I right assuming that the consumer will not burn out being connected to a power supply with higher current output? P.S. my understanding is that voltage is something independent from the consumer. If you give it higher voltage it will burn (voltage is from PSU to the consumer). However current must be in opposite - consumer sucks as much current as it need not as much as PSU can provide (of course given that max PSU current is greater than the consumer needs)

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• How to make sure you server NIC performance is at best on Windows?

  - by Bobb

  I realised that I followed some obscure paper on setting NICs on Windows for too long. It might be outdated with new hardware released in past couple of years and with W2008R2. I read a bit about offloading and RSS settings on Windows and I realiased that it is very much circumstantial. Noone can really say - enable that and disable this. etc. So what I really want is for my next server try and setup testing environment and measure how my particular application will behave with different settings. The target is going to be latency of TCP primarily. Please note I am talking about latency inside the box. Are there precision tools for Windows to measure latency (down to microseconds)? P.S. I know this is not easy question. Windows time drift is awful problem for any precision test but still I am sure I am not the fist person to need that... Please share your experience

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• Can I use stronger power supply to charge Kindle? [closed]

  - by Bobb

  I have power supply for Kindle with output 5V 0.85A. And I have Samsung Galaxy Pad one with output of 5V 2A. My guess is that a device will consume as much current as it can but no more than max power supply current. For example if Kindle device consumes 0.6A for charging its battery then it shouldnt create more than 0.6A current using Galaxy Pad power supply. So my guess - if I charge Kindle with Galaxy Pad power supply it wont burn out. Is that right?

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• capturing CMD batch file parameter list; write to file for later processing

  - by BobB

  I have written a batch file that is launched as a post processing utility by a program. The batch file reads ~24 parameters supplied by the calling program, stores them into variables, and then writes them to various text files. Since the max input variable in CMD is %9, it's necessary to use the 'shift' command to repeatedly read and store these individually to named variables. Because the program outputs several similar batch files, the result is opening several CMD windows sequentially, assigning variables and writing data files. This ties up the calling program for too long. It occurs to me that I could free up the calling program much faster if maybe there's a way to write a very simple batch file that can write all the command parameters to a text file, where I can process them later. Basically, just grab the parameter list, write it and done. Q: Is there some way to treat an entire series of parameter data as one big text string and write it to one big variable... and then echo the whole big thing to one text file? Then later read the string into %n variables when there's no program waiting to resume? Parameter list is something like 25 - 30 words, less than 200 characters. Sample parameter list: "First Name" "Lastname" "123 Steet Name Way" "Cityname" ST 12345 1004968 06/01/2010 "Firstname+Lastname" 101738 "On Account" 20.67 xy-1z 1 8.95 3.00 1.39 0 0 239 8.95 Items in quotes are processed as string variables. List is space delimited. Any suggestions?

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• C#. How to terminate a thread which has spawned another thread which is sleeping?

  - by Bobb

  I have a long running thread made from Thread.Start(). It spawns a background thread using QueueUserWorkItem which sleeps most of the time. Then the class-owner get disposed I call thread1.Join() but naturally it doesnt return because its child background thread is sleeping. What would be the right solution to gracefully terminate a thread which has other threads with little hassle? Thanks

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• VS2010 Threads window shows 25 threads and Process.Threads.Count.50 Why?

  - by Bobb

  VS2010 Threads window shows 25 threads and Process.Threads.Count.50 What are the other 25 are doing?

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• How to terminate a thread which has spawned another thread which is sleeping?

  - by Bobb

  I have a long running thread made from Thread.Start(). It spawns a background thread using QueueUserWorkItem which sleeps most of the time. Then the class-owner get disposed I call thread1.Join() but naturally it doesnt return because its child background thread is sleeping. What would be the right solution to gracefully terminate a thread which has other threads with little hassle?

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• WPF. Can I dinamically make part of the TextBlock.Text to different colour?

  - by Bobb

  I have TextBlock in my main form. I set the Text property to different strings during the application run. I would like to be able to colour parts of particular strings. Say (pseudo-code) if(a < 0) txbStatus.Text = string.Format("{0} <RED>{1}</RED>", a, b); else txbStatus.Text = string.Format("{0} <BLUE>{1}</RED>", a, b);

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• Agile methodologies. Is it a by-product of mind control techniques as NLP / Scientology?

  - by Bobb

  The more I read about contemporary methods combinging scrum, tdd and xp, the more I feel like I already seen the methods. I am not arguing that agile approach is much more progressive than older rigid structures like waterfall, what I am saying is that it seems to me that agile methodologies are ideal to be used as a nest for a brainwashing business. I read few articles which kept referring to authors which I checked afterwards and they call themselves - coaches, trainers (usual thing when NLP specialists are involved) with no apparent software development history. Also I met a guy who is a scrum faciltator (term widly used in relation to scientology) in a high profile company. I talked to him less than 5 min but I got complete feeling that he is either on drugs or he has been programmed by a powerful NLP specialist. The way to talk and his body movements witnessed he is not an average normal person (in terms of normal distribution :))... Please dont get me wrong. I am not a fun of conspiracy theories. But I had an experience with a member of church of scientology tried to invade a commercial firm and actually went half way through to very top in just 3 weeks. I saw his work. For now I have complete impression is that psycho manipulators are now invading IT industry through the convenient door of agile techniques. Anyone has the same feeling/thoughts?

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• What would happen to GC if I run process with priority = RealTime?

  - by Bobb

  I have a C# app which runs with priority RealTime. It was all fine until I made few hectic changes in past 2 days. Now it runs out of memory in few hours. I am trying to find whether it is a memory leak I created of this is because I consume lot more objects than before and GC simply cant collect them because it runs with same priority. My question is - what could happen to GC when it tries to collect objects in application with RealTime priority (there is also at least one thread running with Highest thread priority)? (P.S. by realtime priority I mean Process.GetCurrentProcess().PriorityClass = ProcessPriorityClass.RealTime) Sorry forgot to tell. GC is in Server mode

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• How many bits can be transfered through Ethernet at each time?

  - by Bobb

  I am writing a networking application. It has some unxpected lags. I need to calculate some figures but I cant find an information - how many bits can be transferes through Ethernet connection at each tick. I know that the resulting transfer rate is 100Mbps/1Gbps. But ethernet should use hardware ticks to sync both ends I suppose. So it moves data in ticks. So the question is how many ticks per second or how many bits per one tick used in ethernet. The actual connection is 100 Mbps full-duplex.

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• C# What would happen to GC if I run process with priority = RealTime?

  - by Bobb

  I have a C# app which runs with priority RealTime. It was all fine until I made few hectic changes in past 2 days. Now it runs out of memory in few hours. I am trying to find whether it is a memory leak I created of this is because I consume lot more objects than before and GC simply cant collect them because it runs with same priority. My question is - what could happen to GC when it tries to collect objects in application with RealTime priority (there is also at least one thread running with Highest thread priority)? (P.S. by realtime priority I mean Process.GetCurrentProcess().PriorityClass = ProcessPriorityClass.RealTime)

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• LINQ How to force query to materialize?

  - by Bobb

  Say I have simple LINQ extenstion: var filtered = data.Where(i => i.Count > 0); I know that this will not evaluated unless I start to use filtered i.e. foreach(DataItem i in filtered) ... However I need to create cloned version of data and release data as soon as possible. data can be changed in other thread so I want to get immediate snapshot of it. How can I force filtered to be evaluated immediately?

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• C#, LINQ. How to find an element within group of elements

  - by Bobb

  Imagine you have int[] data = new int [] { 1, 2, 1, 1, 3, 2 } I need sub-array with only those which conform to a condition data[i] data[i-1] && data[i] data[i + 1]... i.e. I need all items which stick over their immediate neighbours. From example above I should get { 2, 3 } Can it be done in LINQ? Thanks

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• SQLCLR using the wrong version of the .NET Framework

  - by Tobias Rundbom

  During a recent restart of our development server the SQL Server started using .NET 4.0 for the SQLCLR. This means that nothing using the CLR in SQL works, or at least that's my understanding by reading these sources: http://software.intel.com/en-us/blogs/2009/10/16/sql-server-2008-sqlclr-net-framework-version/ www.sqlskills.com/BLOGS/BOBB/post/On-SQL-Server-and-NET-40.aspx All we get are error messages of this type: Msg 6517, Level 16, State 1, Line 1 Failed to create AppDomain "xxx.dbo[ddl].3". Method's type signature is not Interop compatible. Does anyone know how to solve this or how we can force SQL Server CLR to use an earlier version of the Framework?

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• Configuring Wireless on Cisco 851W

  - by Aequitarum Custos

  Either a powersurge or something caused our router's configuration to get wiped, and our last backup was before the wireless network was setup. We have not been able to reconfigure the wireless since then, so was curious if anyone here would be able to determine what configuration is needed. We are using a Cisco 851W running 12.4(15)T9 We would like to use WPA encryption, and have it on the same network as the rest of the office network. Config file is below: User Access Verification Building configuration... Current configuration : 3857 bytes ! version 12.4 no service pad service timestamps debug datetime msec service timestamps log datetime msec service password-encryption no service dhcp ! hostname BOB ! boot-start-marker boot-end-marker ! enable secret 5 ********************* ! no aaa new-model ! ! dot11 syslog no ip source-route ! ! ip cef no ip bootp server ip domain name BOB.com ip name-server 61.11.1.1 ip name-server 61.11.1.2 ! ! ! username BOBB privilege 15 password 7 ************************* ! ! archive log config hidekeys ! ! ip tcp synwait-time 10 ! ! ! interface FastEthernet0 no cdp enable ! interface FastEthernet1 no cdp enable ! interface FastEthernet2 no cdp enable ! interface FastEthernet3 no cdp enable ! interface FastEthernet4 description WAN Connection$ETH-WAN$ ip address 61.11.1.14 255.255.254.0 ip nat outside ip virtual-reassembly duplex auto speed auto no cdp enable ! interface Dot11Radio0 no ip address shutdown ! encryption mode ciphers tkip speed basic-1.0 basic-2.0 basic-5.5 6.0 9.0 basic-11.0 12.0 18.0 24.0 36.0 48.0 54.0 station-role root no cdp enable ! interface Dot11Radio0.1 encapsulation dot1Q 1 native no cdp enable bridge-group 1 bridge-group 1 subscriber-loop-control bridge-group 1 spanning-disabled bridge-group 1 block-unknown-source no bridge-group 1 source-learning no bridge-group 1 unicast-flooding ! interface Dot11Radio0.20 ip access-group Guest-ACL in no cdp enable ! interface Vlan1 description Internal Network ip address 192.168.2.60 255.255.255.0 ip nat inside ip nat enable ip virtual-reassembly ! ip forward-protocol nd ip route 0.0.0.0 0.0.0.0 61.11.2.14 ! ip http server no ip http secure-server ip nat inside source list 1 interface FastEthernet4 overload ! ip access-list extended Guest-ACL deny ip any 192.0.0.0 0.0.0.255 permit ip any any ! access-list 1 permit 192.0.0.0 0.0.0.255 access-list 100 remark SDM_ACL Category=2 access-list 100 permit ip 192.0.0.0 0.0.0.255 any no cdp run ! control-plane ! !

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