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  • Re-Convert timestamp DATE back to original format (when editing) PHP MySQL

    - by Jess
    Ok so I have managed to get the format of the date presented in HTML (upon display) to how I want (dd/mm/yyy)...However, the user also can change the date via a form. So this is how it's setup as present. Firstly, the conversion from YYYY-MM-DD to DD/MM/YYYY and then display in HTML: $timestamp = strtotime($duedate); echo date('d/m/Y', $timestamp); Now when the user selects to update the due date, the value already stored value is drawn up and presented in my text field (using exactly the same code as above).. All good so far. But when my user runs the update script (clicks submit), the new due date is not being stored, and in my DB its seen as '0000-00-00'. I know I need to convert it back to the correct format that MySQL wants to have it in, in order for it to be saved, but I'm not sure on how to do this. This is what I have so far in my update script (for the due date): $duedate = $_POST['duedate']; $timestamp = strtotime($duedate); date('Y/m/d', $timestamp); $query = "UPDATE films SET filmname= '".$filmname."', duedate= '".$duedate; Can somebody please point me in the right direction to have the new date, when processed, converted back to the accepted format by MySQL. I appreciate any help given! Thanks.

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  • Qt - reading from a text file

    - by user289175
    Hello world, I have a table view with three columns; I have just passed to write into text file using this code QFile file("/home/hamad/lesson11.txt"); if(!file.open(QIODevice::WriteOnly)) { QMessageBox::information(0,"error",file.errorString()); } QString dd; for(int row=0; row < model->rowCount(); row++) { dd = model->item(row,0)->text() + "," + model->item(row,1)->text() + "," + model->item(row,2)->text(); QTextStream out(&file); out << dd << endl; } But I'm not succeed to read the same file again, I tried this code but I don't know where is the problem in it QFile file("/home/hamad/lesson11.txt"); QTextStream in(&file); QString line = in.readLine(); while(!in.atEnd()) { QStringList fields = line.split(","); model->appendRow(fields); } Any help please ?

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  • Thinking Sphinx with a date range

    - by Leddo
    Hi, I am implementing a full text search API for my rails apps, and so far have been having great success with Thinking Sphinx. I now want to implement a date range search, and keep getting the "bad value for range" error. Here is a snippet of the controller code, and i'm a bit stuck on what to do next. @search_options = { :page => params[:page], :per_page => params[:per_page]||50 } unless params[:since].blank? # make sure date is in specified format - YYYY-MM-DD d = nil begin d = DateTime.strptime(params[:since], '%Y-%m-%d') rescue raise ArgumentError, "Value for since parameter is not a valid date - please use format YYYY-MM-DD" end @search_options.merge!(:with => {:post_date => d..Time.now.utc}) end logger.info @search_options @posts = Post.search(params[:q], @search_options) When I have a look at the log, I am seeing this bit which seems to imply the date hasn't been converted into the same time format as the Time.now.utc. withpost_date2010-05-25T00:00:00+00:00..Tue Jun 01 17:45:13 UTC 2010 Any ideas? Basically I am trying to have the API request pass in a "since" date to see all posts after a certain date. I am specifying that the date should be in the YYYY-MM-DD format. Thanks for your help. Chris EDIT: I just changed the date parameters merge statement to this @search_options.merge!(:with = {:post_date = d.to_date..DateTime.now}) and now I get this error undefined method `to_i' for Tue, 25 May 2010:Date So obviously there is something still not setup right...

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  • How to deal with "partial" dates (2010-00-00) from MySQL in Django?

    - by Etienne
    In one of my Django projects that use MySQL as the database, I need to have a date fields that accept also "partial" dates like only year (YYYY) and year and month (YYYY-MM) plus normal date (YYYY-MM-DD). The date field in MySQL can deal with that by accepting 00 for the month and the day. So 2010-00-00 is valid in MySQL and it represent 2010. Same thing for 2010-05-00 that represent May 2010. So I started to create a PartialDateField to support this feature. But I hit a wall because, by default, and Django use the default, MySQLdb, the python driver to MySQL, return a datetime.date object for a date field AND datetime.date() support only real date. So it's possible to modify the converter for the date field used by MySQLdb and return only a string in this format 'YYYY-MM-DD'. Unfortunately the converter use by MySQLdb is set at the connection level so it's use for all MySQL date fields. But Django DateField rely on the fact that the database return a datetime.date object, so if I change the converter to return a string, Django is not happy at all. Someone have an idea or advice to solve this problem? How to create a PartialDateField in Django ? EDIT Also I should add that I already thought of 2 solutions, create 3 integer fields for year, month and day (as mention by Alison R.) or use a varchar field to keep date as string in this format YYYY-MM-DD. But in both solutions, if I'm not wrong, I will loose the special properties of a date field like doing query of this kind on them: Get all entries after this date. I can probably re-implement this functionality on the client side but that will not be a valid solution in my case because the database can be query from other systems (mysql client, MS Access, etc.)

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  • How to create a log file in the folder which will be created at run time

    - by swati
    Hello Everyone, I new to apache logger.I am using apache log4j for my application. I am using the following configuration file configure the root logger log4j.rootLogger=INFO, STDOUT, DAILY configure the console appender log4j.appender.STDOUT=org.apache.log4j.ConsoleAppender log4j.appender.STDOUT.Target=System.out log4j.appender.STDOUT.layout=org.apache.log4j.PatternLayout log4j.appender.STDOUT.layout.conversionPattern=%d{yyyy-MM-dd HH:mm:ss.SSS} [%p] %c:%L - %m%n configure the daily rolling file appender log4j.appender.DAILY=org.apache.log4j.DailyRollingFileAppender log4j.appender.DAILY.File=log4jtest.log log4j.appender.DAILY.DatePattern='.'yyyy-MM-dd-HH-mm log4j.appender.DAILY.layout=org.apache.log4j.PatternLayout log4j.appender.DAILY.layout.conversionPattern=%d{yyyy-MM-dd HH:mm:ss.SSS} [%p] %c:%L - %m%n So when my application runs it creates a folder called somename_2010-04-09-23-09 . My log file has to be created inside of this somename_2010-04-09-23-09 folder.(Which created at run time..). Is there anyway to do that.. Is there anyway we can specify in the configuration file so that it will create at run time the log file inside of the folder somename_2010-04-09-23-03 folder..? I would really appreciate if some one can answer to my questions. Thanks, Swati

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  • Does anyone have documentation on SHGetSysColor?

    - by Paulo Santos
    I'm trying to find any reference for this function, but I haven't found anything. All I have is an obscure KB from Microsoft referencing that a programmer made boo-boo when coding a part of the Windows Mobile 6 where he should call SHGetSysColor but instead he called GetSysColor that gives a complete different color, for the same spec. From what I could gather the GetSysColor read a color value in the registry from HKEY_LOCAL_MACHINE\Software\Microsoft\Color\SHColor or HKEY_LOCAL_MACHINE\Software\Microsoft\Color\DefSHColor and returns the color according to the index. In that registry I have the following value for a standard Win Mobile 6.5 "DefSHColor"=hex:\ ff,00,00,00,00,00,00,00,dd,dd,dd,00,ff,ff,cc,00,ff,ff,ff,00,15,af,bc,00,15,\ af,bc,00,c9,e7,e9,00,14,9c,a7,00,ff,ff,ff,00,14,9c,a7,00,14,9c,a7,00,14,9c,\ a7,00,15,af,bc,00,14,9c,a7,00,ff,ff,ff,00,c9,e7,e9,00,37,c7,d3,00,37,c7,d3,\ 00,ff,ff,ff,00,00,b7,c9,00,14,9c,a7,00,ff,ff,ff,00,15,af,bc,00,84,84,c3,00,\ 15,af,bc,00,14,9c,a7,00,ff,ff,ff,00,ff,ff,ff,00,00,00,00,00,ff,ff,ff,00,00,\ 00,00,00,ff,ff,ff,00,2e,44,4f,00,00,14,3c,00,00,f0,ff,00,ff,ff,ff,00,c9,e7,\ e9,00,14,9c,a7,00,ff,ff,ff,00,14,9c,a7,00 And I realized that each four bytes represents a different color (RR,GG,BB,AA -- The AA I'm assuming here, as every color there has the AA byte as 00 which would mean that it's a solid color). What I can't get a fix on is what each index mean, as I have 41 different colors in there. Googling for SHGetSysColor in gives me only 7 matches, two of them are the KB from Microsoft (one in English, the other in French) one is from a Russian site (which I don't read), yet another two are from the freepascal.org and one from Koders.com that is describing the commctl.def file. I went to the commctl.h trying to see if I could find reference tom this function, and found absolutely nothing. No search on MSDN, either fro Google, Bing, or the default MSDN search gave me any result. So, does anyone know what indexes are we talking about here?

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  • Error using to_char // to_timestamp

    - by pepersview
    Hello, I have a database in PostgreSQL and I'm developing an application in PHP using this database. The problem is that when I execute the following query I get a nice result in phpPgAdmin but in my PHP application I get an error. The query: SELECT t.t_name, t.t_firstname FROM teachers AS t WHERE t.id_teacher IN (SELECT id_teacher FROM teacher_course AS tcourse JOIN course_timetable AS coursetime ON tcourse.course = coursetime.course AND to_char(to_timestamp('2010-4-12', 'YYYY-MM-DD'),'FMD') = (coursetime.day +1)) AND t.id_teacher NOT IN (SELECT id_teacher FROM teachers_fill WHERE date = '2010-4-12') ORDER BY t.t_name ASC And this is the error in PHP operator does not exist: text = integer (to_timestamp('', 'YYYY-MM-DD'),'FMD') = (courset... ^ HINT: No operator matches the given name and argument type(s). You might need to add explicit type casts. The purpose to solve this error is to use the ORIGINAL query in php with : $date = "2010"."-".$selected_month."-".$selected_day; SELECT t.t_name, t.t_firstname FROM teachers AS t WHERE t.id_teacher IN (SELECT id_teacher FROM teacher_course AS tcourse JOIN course_timetable AS coursetime ON tcourse.course = coursetime.course AND to_char(to_timestamp('$date', 'YYYY-MM-DD'),'FMD') = (coursetime.day +1)) AND t.id_teacher NOT IN (SELECT id_teacher FROM teachers_fill WHERE date = '$date') ORDER BY t.t_name ASC

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  • asp.net ajax collapsible panel in ie8 problem

    - by stuart
    Anyone try this simple bit of code in an ie8 browswer and try refreshing the page, in ie8 you will get an error around getelementbyid on refresh. When i run it it complains of not being able to find control with id of 'ctl00_main_dd' <cc1:CollapsiblePanelExtender ID="CollapsiblePanelExtender2" runat="server" ImageControlID="Image2" CollapsedImage="~/App_Themes/IMStandard/icons/uparrow.png" ExpandedImage="~/App_Themes/IMStandard/icons/downarrow.png" CollapseControlID="dd" ExpandControlID="dd" TargetControlID="pnlQuickKeywordSearch" SuppressPostBack="true"> </cc1:CollapsiblePanelExtender> <asp:Panel ID="dd" runat="server"> <h3 class="loginHeader"> <asp:Image ID="Image2" runat="server" /> &nbsp;&nbsp;Quick Keyword search&nbsp;<asp:Image ID="HelpIconImage" runat="server" Width="16px" Height="16px" ImageUrl="~/App_Themes/IMStandard/icons/help.png" /></h3> </asp:Panel> <asp:Panel ID="pnlQuickKeywordSearch" Style="float: left; border: double 3px #C9DF86;" runat="server" > <div style="clear: both; padding: 5px;"> </div></asp:Panel> Anybody know why this is happening? is it a bug in ie8 or am i missing something? By the way, i am using masterpages, but i dont think that has anything to do with it. Thanks

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  • event.stopPropagation(); doesn't behave as expected

    - by Ciprian Amaritei
    I read couple articles related to event.stopPropagation(); but none of the solutions provided works for me. Basically what I have is an accordion widget with all the elements collapsed by default. On each element header (dt tag) there is also a checkbox. Clicking the checkbox shouldn't trigger the accordion to make its elements expand. <dt data-toggle="collapse"> <span class="subscribe-checkbox"><button type="button" class="btn toggle-btn" data-toggle="button"></button></span> </dt> <dd> <p>Accordion content...</p> </dd> Clicking the span (which should act as a checkbox ) should add class "checked" to it. However it also expands the accordion element (dd tag). What I'm doing in jQuery is: $('.accordion-group .btn.toggle-btn').click(function (event) { event.stopPropagation(); }); While the accordion content isn't shown ( which is good) the element doesn't change class either, so it doesn't become 'checked'. I tried with .live() too and didn't work either. Thanks in advance, Ciprian.

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  • How to round-off hours based on Minutes(hours+0 if min<30, hours+1 otherwise) ?

    - by infant programmer
    I need to round-off the hours based on the minutes in a DateTime variable. The condition is: if minutes are less than 30, then minutes must be set to zero and no changes to hours, else if minutes =30, then hours must be set to hours+1 and minutes are again set to zero. Seconds are ignored. example: 11/08/2008 04:30:49 should become 11/08/2008 05:00:00 and 11/08/2008 04:29:49 should become 11/08/2008 04:00:00 I have written code which works perfectly fine, but just wanted to know a better method if could be written and also would appreciate alternative method(s). string date1 = "11/08/2008 04:30:49"; DateTime startTime; DateTime.TryParseExact(date1, "MM/dd/yyyy HH:mm:ss", null, System.Globalization.DateTimeStyles.None, out startTime); if (Convert.ToInt32((startTime.Minute.ToString())) > 29) { startTime = DateTime.Parse(string.Format("{0}/{1}/{2} {3}:{4}:{5}", startTime.Month.ToString(), startTime.Day.ToString(), startTime.Year.ToString(), startTime.Hour.ToString(), "00", "00")); startTime = startTime.Add(TimeSpan.Parse("01:00:00")); Console.WriteLine("startTime is :: {0}", startTime.ToString("MM/dd/yyyy HH:mm:ss")); } else { startTime = DateTime.Parse(string.Format("{0}/{1}/{2} {3}:{4}:{5}", startTime.Month.ToString(), startTime.Day.ToString(), startTime.Year.ToString(), startTime.Hour.ToString(), "00", "00")); Console.WriteLine("startTime is :: {0}", startTime.ToString("MM/dd/yyyy HH:mm:ss")); }

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  • Error using to_char // to_timetamp

    - by pepersview
    Hello, I have a database in PostgreSQL and I'm developing an application in PHP using this database. The problem is that when I execute the following query I get a nice result in phpPgAdmin but in my PHP application I get an error. The query: SELECT t.t_name, t.t_firstname FROM teachers AS t WHERE t.id_teacher IN (SELECT id_teacher FROM teacher_course AS tcourse JOIN course_timetable AS coursetime ON tcourse.course = coursetime.course AND to_char(to_timestamp('2010-4-12', 'YYYY-MM-DD'),'FMD') = (coursetime.day +1)) AND t.id_teacher NOT IN (SELECT id_teacher FROM teachers_fill WHERE date = '2010-4-12') ORDER BY t.t_name ASC And this is the error in PHP operator does not exist: text = integer (to_timestamp('', 'YYYY-MM-DD'),'FMD') = (courset... ^ HINT: No operator matches the given name and argument type(s). You might need to add explicit type casts. The purpose to solve this error is to use the ORIGINAL query in php with : $date = "2010"."-".$selected_month."-".$selected_day; SELECT t.t_name, t.t_firstname FROM teachers AS t WHERE t.id_teacher IN (SELECT id_teacher FROM teacher_course AS tcourse JOIN course_timetable AS coursetime ON tcourse.course = coursetime.course AND to_char(to_timestamp('$date', 'YYYY-MM-DD'),'FMD') = (coursetime.day +1)) AND t.id_teacher NOT IN (SELECT id_teacher FROM teachers_fill WHERE date = '$date') ORDER BY t.t_name ASC

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  • PHP / Zend custom date input formats

    - by mld
    Hi, I'm creating a library component for other developers on my team using PHP and Zend. This component needs to be able to take as input a date (string) and another string telling it the format of that date. Looking through the Zend documentation and examples, I thought I found the solution - $dateObject = Zend_Date('13.04.2006', array('date_format' => 'dd.MM.yyyy')); this line, however, throws an error - call to undefined function. So instead I tried this - $dt = Zend_Locale_Format::getDate('13.04.2006', array('date_format' => 'dd.MM.yyyy')); This gets the job done, but throws an error if a date that is entered isn't valid. The docs make it look like you can use the isDate() function to check validity - Zend_Date::isDate('13.04.2006', array('date_format' => 'dd.MM.yyyy')) but this line always returns false. So my questions - Am I going about this the right way? If not, is there a better way to handle this via Zend or straight PHP? If I do use Zend_Locale_Format::getDate(), do I need to worry about a locale being set elsewhere and changing the results of the call? I'm locked into PHP 5.2.6 on windows, btw... so 5.3+ functions & strptime() are out.

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  • CAML query soap SharePoint

    - by robScott
    I'm trying to access a SharePoint list and return the calendar dates for a custom webpart I made. It was working fine, then I decided to only retrieve the date selected rather than the whole calendar, so I wanted to add a where clause. I've tried 'yyyy-MM-dd', 'yyyy-MM-ddThh:mm:ssZ', and 'yyyy-MM-dd hh:mm:ssZ' as string formats I've also tried MM/dd/yyyy as a date format. I'm using jQuery, and I do have list items in the calendar. I'm assuming my date is not in the correct format. var date = $(this).attr('date'); var sharepointDate = Date.parse(date).toString('yyyy-mm-ddT00:00:01Z'); var soapEnv = "<soapenv:Envelope xmlns:soapenv='http://schemas.xmlsoap.org/soap/envelope/'> \ <soapenv:Body> \ <GetListItems xmlns='http://schemas.microsoft.com/sharepoint/soap/'> \ <listName>CorporateCalendar</listName> \ <viewFields> \ <ViewFields> \ <FieldRef Name='Title' /> \ </ViewFields> \ </viewFields> \ <query><Query><Where><Geq><FieldRef Name='EventDate' /><Value Type='DateTime'>" + sharepointDate + "</Value></Geq></Where></Query></query> \ <rowLimit>500</rowLimit> \ </GetListItems> \ </soapenv:Body> \ </soapenv:Envelope>"; If I take the where clause out I receive all the items in the calendar. If the query is in there, I receive no results. Thanks in advance

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  • Round time to 5 minute nearest SQL Server

    - by Drako
    i don't know if it can be usefull to somebody but I went crazy looking for a solution and ended up doing it myself. Here is a function that (according to a date passed as parameter), returns the same date and approximate time to the nearest multiple of 5. It is a slow query, so if anyone has a better solution, it is welcome. A greeting. CREATE FUNCTION [dbo].[RoundTime] (@Time DATETIME) RETURNS DATETIME AS BEGIN DECLARE @min nvarchar(50) DECLARE @val int DECLARE @hour int DECLARE @temp int DECLARE @day datetime DECLARE @date datetime SET @date = CONVERT(DATETIME, @Time, 120) SET @day = (select DATEADD(dd, 0, DATEDIFF(dd, 0, @date))) SET @hour = (select datepart(hour,@date)) SET @min = (select datepart(minute,@date)) IF LEN(@min) > 1 BEGIN SET @val = CAST(substring(@min, 2, 1) as int) END else BEGIN SET @val = CAST(substring(@min, 1, 1) as int) END IF @val <= 2 BEGIN SET @val = CAST(CAST(@min as int) - @val as int) END else BEGIN IF (@val <> 5) BEGIN SET @temp = 5 - CAST(@min%5 as int) SET @val = CAST(CAST(@min as int) + @temp as int) END IF (@val = 60) BEGIN SET @val = 0 SET @hour = @hour + 1 END IF (@hour = 24) BEGIN SET @day = DATEADD(day,1,@day) SET @hour = 0 SET @min = 0 END END RETURN CONVERT(datetime, CAST(DATEPART(YYYY, @day) as nvarchar) + '-' + CAST(DATEPART(MM, @day) as nvarchar) + '-' + CAST(DATEPART(dd, @day) as nvarchar) + ' ' + CAST(@hour as nvarchar) + ':' + CAST(@val as nvarchar), 120) END

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  • C# : How to round-off hours based on Minutes(hours+0 if min<30, hours+1 otherwise) ?

    - by infant programmer
    I need to round-off the hours based on the minutes in a dateTime variable. The condition is : if minutes are less than 30, then minutes must be set to zero and no changes to hours, Else if minutes =30, then hours must be set to hours+1 and minutes are again set to zero. Seconds are ignored. example: 11/08/2008 04:30:49 should become 11/08/2008 05:00:00 and 11/08/2008 04:29:49 should become 11/08/2008 04:00:00 I have written a Code which works perfectly fine, but just wanted to know a better method if could be written and also would appreciate alternative method(s). string date1 = "11/08/2008 04:30:49"; DateTime startTime; DateTime.TryParseExact(date1, "MM/dd/yyyy HH:mm:ss", null, System.Globalization.DateTimeStyles.None, out startTime); if (Convert.ToInt32((startTime.Minute.ToString())) > 29) { startTime = DateTime.Parse(string.Format("{0}/{1}/{2} {3}:{4}:{5}", startTime.Month.ToString(), startTime.Day.ToString(), startTime.Year.ToString(), startTime.Hour.ToString(), "00", "00")); startTime = startTime.Add(TimeSpan.Parse("01:00:00")); Console.WriteLine("startTime is :: {0}", startTime.ToString("MM/dd/yyyy HH:mm:ss")); } else { startTime = DateTime.Parse(string.Format("{0}/{1}/{2} {3}:{4}:{5}", startTime.Month.ToString(), startTime.Day.ToString(), startTime.Year.ToString(), startTime.Hour.ToString(), "00", "00")); Console.WriteLine("startTime is :: {0}", startTime.ToString("MM/dd/yyyy HH:mm:ss")); }

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  • How to format dates in Jahia 6 CMS?

    - by dpb
    I am helping a friend of mine put up a site for his business. I’ve read different posts and sites trying to find the ideal CMS tool, but people have different views of what is the best, so I finally just picked one of them at random. So I went for an evaluation of Jahia 6.0-CE. As you’ve probably guessed by now, I don’t have so much experience with CMS tools. I just want to setup the CMS, write the templates for the site and let my friend manage the content from there on. So I extracted the sources from SVN and went for a test drive. I managed to create some simple templates to get a hang of things but now I have an issue with a date format. In my definitions.cnd I declared the field like so: date myDateField (datetimepicker[format='dd.MM.yyyy']) This is formatted in the page and the selector also presents this in the dd.MM.yyyy format when inserting the content. But how about sites in other countries, countries that represent the date as MM.dd.yyyy for example? If I specify the format in the CND, hard coded, how can I change this later on so that it adapts based on the browser’s language? Do I extract the content from the repository and format it by hand in the JSP template based on a Locale, or is there a better way? Thank you.

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  • reformatting a matrix in matlab with nan values

    - by Kate
    This post follows a previous question regarding the restructuring of a matrix: re-formatting a matrix in matlab An additional problem I face is demonstrated by the following example: depth = [0:1:20]'; data = rand(1,length(depth))'; d = [depth,data]; d = [d;d(1:20,:);d]; Here I would like to alter this matrix so that each column represents a specific depth and each row represents time, so eventually I will have 3 rows (i.e. days) and 21 columns (i.e. measurement at each depth). However, we cannot reshape this because the number of measurements for a given day are not the same i.e. some are missing. This is known by: dd = sortrows(d,1); for i = 1:length(depth); e(i) = length(dd(dd(:,1)==depth(i),:)); end From 'e' we find that the number of depth is different for different days. How could I insert a nan into the matrix so that each day has the same depth values? I could find the unique depths first by: unique(d(:,1)) From this, if a depth (from unique) is missing for a given day I would like to insert the depth to the correct position and insert a nan into the respective location in the column of data. How can this be achieved?

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  • MD3200 - 3 to 4x less throughput than MD1220. Am I missing something here?

    - by Igor Polishchuk
    I have two R710 servers with similar configuration. One in my office has MD1220 attached. Another one in the datacenter of my hosting services vendor has MD3200. I'm getting significantly worse throughput from MD3200 at my vendors setup. I'm mostly interested in sequential writes, and I'm getting these results in bonnie++ and dd tests: Seq. writes on MD1220 in my office: 1.1 GB/s - bonnie++, 1.3GB/s - dd Seq. writes on MD3200 at my vendor's: 240MB/s - bonnie++, 310MB/s - dd Unfortunately, I could not test the exactly the same configurations, but the two I have should be comparable. If anything, my good performing environment is cheaper than the bad performing. I expect at least similar throughput from these two setups. My vendor cannot really help me. Hopefully, somebody more familiar with the DAS performance can look at it and tell if I'm missing something here and my expectations are too high. To summarize, the question here is it reasonable to expect about 100MB/s of sequential write throughput per each couple of drives in RAID10 on MD3200? Is there any trick to enable such performance in MD3200 with dual controller as opposed to simple MD1220 with a single H800 adapter? More details about the configurations: A good one in my office: Dell R710 2CPU X5650 @ 2.67GHz 12 cores 96GB DDR3, OS: RHEL 5.5, kernel 2.6.18-194.26.1.el5 x86_64 20x300GB 2.5" SAS 10K in a single RAID10 1MB chunk size on MD1220 + Dell H800 I/O controller with 1GB cache in the host Not so good one at my vendor's: Dell R710 2CPU L5520 @ 2.27GHz 8 cores 144GB DDR3, OS: RHEL 5.5, kernel 2.6.18-194.11.4.el5 x86_64 20x146GB 2.5" SAS 15K in a single RAID10 512KB chunk size, Dell MD3200, 2 I/O controllers in array with 1GB cache each Additional information. I've also ran the same tests on the same vendor's host, but the storage was: two raids of 14x146GB 15K RPM drives RAID 10, striped together on the OS level on MD3000+MD1000. The performance was about 25% worse than on MD3200 despite having more drives. When I ran similar tests on the internal storage of my vendor's host (2x146GB 15K RPM drives RAID1, Perc 6i) I've got about 128MB/s seq. writes. Just two internal drives gave me about a half of 20 drives' throughput on MD3200. The random I/O performance of the MD3200 setup is ok, it gives me at least 1300 IOPS. I'm mostly have problems with sequentioal I/O throughput. Thank you for looking into it. Regards Igor

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  • Improving SAS multipath to JBOD performance on Linux

    - by user36825
    Hello all I'm trying to optimize a storage setup on some Sun hardware with Linux. Any thoughts would be greatly appreciated. We have the following hardware: Sun Blade X6270 2* LSISAS1068E SAS controllers 2* Sun J4400 JBODs with 1 TB disks (24 disks per JBOD) Fedora Core 12 2.6.33 release kernel from FC13 (also tried with latest 2.6.31 kernel from FC12, same results) Here's the datasheet for the SAS hardware: http://www.sun.com/storage/storage_networking/hba/sas/PCIe.pdf It's using PCI Express 1.0a, 8x lanes. With a bandwidth of 250 MB/sec per lane, we should be able to do 2000 MB/sec per SAS controller. Each controller can do 3 Gb/sec per port and has two 4 port PHYs. We connect both PHYs from a controller to a JBOD. So between the JBOD and the controller we have 2 PHYs * 4 SAS ports * 3 Gb/sec = 24 Gb/sec of bandwidth, which is more than the PCI Express bandwidth. With write caching enabled and when doing big writes, each disk can sustain about 80 MB/sec (near the start of the disk). With 24 disks, that means we should be able to do 1920 MB/sec per JBOD. multipath { rr_min_io 100 uid 0 path_grouping_policy multibus failback manual path_selector "round-robin 0" rr_weight priorities alias somealias no_path_retry queue mode 0644 gid 0 wwid somewwid } I tried values of 50, 100, 1000 for rr_min_io, but it doesn't seem to make much difference. Along with varying rr_min_io I tried adding some delay between starting the dd's to prevent all of them writing over the same PHY at the same time, but this didn't make any difference, so I think the I/O's are getting properly spread out. According to /proc/interrupts, the SAS controllers are using a "IR-IO-APIC-fasteoi" interrupt scheme. For some reason only core #0 in the machine is handling these interrupts. I can improve performance slightly by assigning a separate core to handle the interrupts for each SAS controller: echo 2 /proc/irq/24/smp_affinity echo 4 /proc/irq/26/smp_affinity Using dd to write to the disk generates "Function call interrupts" (no idea what these are), which are handled by core #4, so I keep other processes off this core too. I run 48 dd's (one for each disk), assigning them to cores not dealing with interrupts like so: taskset -c somecore dd if=/dev/zero of=/dev/mapper/mpathx oflag=direct bs=128M oflag=direct prevents any kind of buffer cache from getting involved. None of my cores seem maxed out. The cores dealing with interrupts are mostly idle and all the other cores are waiting on I/O as one would expect. Cpu0 : 0.0%us, 1.0%sy, 0.0%ni, 91.2%id, 7.5%wa, 0.0%hi, 0.2%si, 0.0%st Cpu1 : 0.0%us, 0.8%sy, 0.0%ni, 93.0%id, 0.2%wa, 0.0%hi, 6.0%si, 0.0%st Cpu2 : 0.0%us, 0.6%sy, 0.0%ni, 94.4%id, 0.1%wa, 0.0%hi, 4.8%si, 0.0%st Cpu3 : 0.0%us, 7.5%sy, 0.0%ni, 36.3%id, 56.1%wa, 0.0%hi, 0.0%si, 0.0%st Cpu4 : 0.0%us, 1.3%sy, 0.0%ni, 85.7%id, 4.9%wa, 0.0%hi, 8.1%si, 0.0%st Cpu5 : 0.1%us, 5.5%sy, 0.0%ni, 36.2%id, 58.3%wa, 0.0%hi, 0.0%si, 0.0%st Cpu6 : 0.0%us, 5.0%sy, 0.0%ni, 36.3%id, 58.7%wa, 0.0%hi, 0.0%si, 0.0%st Cpu7 : 0.0%us, 5.1%sy, 0.0%ni, 36.3%id, 58.5%wa, 0.0%hi, 0.0%si, 0.0%st Cpu8 : 0.1%us, 8.3%sy, 0.0%ni, 27.2%id, 64.4%wa, 0.0%hi, 0.0%si, 0.0%st Cpu9 : 0.1%us, 7.9%sy, 0.0%ni, 36.2%id, 55.8%wa, 0.0%hi, 0.0%si, 0.0%st Cpu10 : 0.0%us, 7.8%sy, 0.0%ni, 36.2%id, 56.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu11 : 0.0%us, 7.3%sy, 0.0%ni, 36.3%id, 56.4%wa, 0.0%hi, 0.0%si, 0.0%st Cpu12 : 0.0%us, 5.6%sy, 0.0%ni, 33.1%id, 61.2%wa, 0.0%hi, 0.0%si, 0.0%st Cpu13 : 0.1%us, 5.3%sy, 0.0%ni, 36.1%id, 58.5%wa, 0.0%hi, 0.0%si, 0.0%st Cpu14 : 0.0%us, 4.9%sy, 0.0%ni, 36.4%id, 58.7%wa, 0.0%hi, 0.0%si, 0.0%st Cpu15 : 0.1%us, 5.4%sy, 0.0%ni, 36.5%id, 58.1%wa, 0.0%hi, 0.0%si, 0.0%st Given all this, the throughput reported by running "dstat 10" is in the range of 2200-2300 MB/sec. Given the math above I would expect something in the range of 2*1920 ~= 3600+ MB/sec. Does anybody have any idea where my missing bandwidth went? Thanks!

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  • Why is this LTO4 Tape-drive not working

    - by Tim Haegele
    # modprobe mptsas # dmesg [ 4274.796796] scsi target7:0:0: mptsas: ioc1: delete device: fw_channel 0, fw_id 0, phy 0, sas_addr 0x50050763124b29ac [ 4274.939579] mptsas 0000:01:00.0: PCI INT A disabled [ 4280.934531] Fusion MPT SAS Host driver 3.04.12 [ 4280.934552] mptsas 0000:01:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 [ 4280.934692] mptbase: ioc2: Initiating bringup [ 4281.490183] ioc2: LSISAS1064E B3: Capabilities={Initiator} [ 4281.490203] mptsas 0000:01:00.0: setting latency timer to 64 [ 4293.555274] scsi8 : ioc2: LSISAS1064E B3, FwRev=011e0000h, Ports=1, MaxQ=277, IRQ=16 [ 4293.574906] mptsas: ioc2: attaching ssp device: fw_channel 0, fw_id 0, phy 0, sas_addr 0x50050763124b29ac [ 4293.576471] scsi 8:0:0:0: Sequential-Access IBM ULTRIUM-HH4 B6W1 PQ: 0 ANSI: 6 [ 4293.578549] st 8:0:0:0: Attached scsi tape st0 [ 4293.578550] st 8:0:0:0: st0: try direct i/o: yes (alignment 512 B) [ 4293.578577] st 8:0:0:0: Attached scsi generic sg5 type 1 # mt -f /dev/st0 status mt -f /dev/st0 status mt: /dev/st0: rmtopen failed: Input/output error # dd if=/dev/zero of=/dev/nst0 bs=1024 count=10 dd: opening `/dev/nst0': Input/output error I am running debian squeeze 2.6.32-5-amd64 #1 SMP Sun May 6 04:00:17 UTC 2012 x86_64 GNU/Linux Server is Fujitsu TX140 with Controller Symbios Logic SAS1064ET PCI-Express Fusion-MPT SAS Tape+Hardware is new.

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  • Slow NFS transfer performance of small files

    - by Arie K
    I'm using Openfiler 2.3 on an HP ML370 G5, Smart Array P400, SAS disks combined using RAID 1+0. I set up an NFS share from ext3 partition using Openfiler's web based configuration, and I succeeded to mount the share from another host. Both host are connected using dedicated gigabit link. Simple benchmark using dd: $ dd if=/dev/zero of=outfile bs=1000 count=2000000 2000000+0 records in 2000000+0 records out 2000000000 bytes (2.0 GB) copied, 34.4737 s, 58.0 MB/s I see it can achieve moderate transfer speed (58.0 MB/s). But if I copy a directory containing many small files (.php and .jpg, around 1-4 kB per file) of total size ~300 MB, the cp process ends in about 10 minutes. Is NFS not suitable for small file transfer like above case? Or is there some parameters that must be adjusted?

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  • Linux process management

    - by tanascius
    Hello, I started a long running background-process (dd with /etc/urandom) in my ssh console. Later I had to disconnect. When I logged in, again (this time directly, without ssh), the process still seemed to to run. I am not sure what happened - I did not use disown. When I logged in later, the process was not listed in top at first, but after a while it reclaimed a high CPU percentage, as I expected. So I assume dd is still running. Now, I'd like to see the progress. I use kill -USR1 <pid> but nothing is printed. Is there any way to get the output again?

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  • Recover an HP recovery partition

    - by eric.chartier
    I have a (semi)-dead hard drive with an HP recovery partition on it. My goal is to Buy a new hard drive Copy the recovery partition to a drive ( dd if=/dev/sdb1 of=~/recovery.bak ) Make a new partition of 12000 mb with Windows 7 Copy back recovery partition to the new drive ( dd if=~/recovery.bak of=/dev/sdb1 ) Then press F11 when the laptop boots. However, this doesn't work. Any idea why? Edit: I suspect the F11 doesn't work because the laptop tries to boot the laptop, because my partition is the primary partition of the drive. Does anyone have any experience dealing with stuff like this?

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  • How to remove iso 9660 from USB?

    - by a_m0d
    I have somehow managed to write an iso 9660 image onto my USB drive, which makes all my computer think that the device is actually a CD. I have tried various methods of removing this partition, but nothing seems to work. I have tried fdisk, which says $ fdisk -l /dev/sdb Cannot open /dev/sdb parted crashes when I try to use it on this device. I have even tried $ dd if=/dev/zero of=/dev/sdb but it just hangs with no output (either on screen or on disk). However, when I plug the USB in, it does mount, and I can view (but not edit) the files on it. edit: now the result is $ dd if=/dev/zero of=/dev/sdb dd: opening `/dev/sdb': Read-only file system I have also tried re-formatting it on Windows, but it gets to the end of the format process and then says "Couldn't format the drive". How can I remove this partition and get my whole USB drive back to normal again? EDIT 1: Trying a simple mkfs doesn't work: $ sudo mkfs -t vfat /dev/sdb mkfs.vfat 3.0.0 (28 Sep 2008) mkfs.vfat: Will not try to make filesystem on full-disk device '/dev/sdb' (use -I if wanted) I can't do mkfs on /dev/sdb1 because there is no such partition, as shown:$ ls /dev | grep sdb sdb EDIT 2: This is the information posted by dmesg when I plug the device in:$ dmesg . . (snip) . usb 2-1: New USB device found, idVendor=058f, idProduct=6387 usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 usb 2-1: Product: Mass Storage usb 2-1: Manufacturer: Generic usb 2-1: SerialNumber: G0905000000000010885 usb-storage: device found at 4 usb-storage: waiting for device to settle before scanning usb-storage: device scan complete scsi 6:0:0:0: Direct-Access FLASH Drive AU_USB20 8.07 PQ: 0 ANSI: 2 sd 6:0:0:0: [sdb] 4069376 512-byte hardware sectors (2084 MB) sd 6:0:0:0: [sdb] Write Protect is off sd 6:0:0:0: [sdb] Mode Sense: 03 00 00 00 sd 6:0:0:0: [sdb] Assuming drive cache: write through sd 6:0:0:0: [sdb] 4069376 512-byte hardware sectors (2084 MB) sd 6:0:0:0: [sdb] Write Protect is off sd 6:0:0:0: [sdb] Mode Sense: 03 00 00 00 sd 6:0:0:0: [sdb] Assuming drive cache: write through sdb: unknown partition table sd 6:0:0:0: [sdb] Attached SCSI removable disk sd 6:0:0:0: Attached scsi generic sg2 type 0 ISO 9660 Extensions: Microsoft Joliet Level 3 ISO 9660 Extensions: RRIP_1991A SELinux: initialized (dev sdb, type iso9660), uses genfs_contexts CE: hpet increasing min_delta_ns to 15000 nsec This shows that the device is formatted as ISO 9660 and that it is /dev/sdb. EDIT 3: This is the message that I find at the bottom of dmesg after running cfdisk and writing a new partition table to the disk:SELinux: initialized (dev sdb, type iso9660), uses genfs_contexts sd 17:0:0:0: [sdb] Device not ready: Sense Key : Not Ready [current] sd 17:0:0:0: [sdb] Device not ready: < ASC=0xff ASCQ=0xffASC=0xff < ASCQ=0xff end_request: I/O error, dev sdb, sector 0 Buffer I/O error on device sdb, logical block 0 lost page write due to I/O error on sdb

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  • How can I repair my USB drive?

    - by yurko
    USB drive is in read only state and I can't repair it. First of all I tried erase it using dd: root@yurko-laptop:/home/yurko-laptop# ls -l /dev/disk/by-id | grep usb lrwxrwxrwx 1 root root 9 ??? 18 23:45 usb-Generic_Flash_Disk_C173828A-0:0 -> ../../sdb lrwxrwxrwx 1 root root 10 ??? 18 23:45 usb-Generic_Flash_Disk_C173828A-0:0-part1 -> ../../sdb1 root@yurko-laptop:/home/yurko-laptop# dd if=/dev/zero of=/dev/sdb dd: ?????? ? «/dev/sdb»: ?? ?????????? ????????? ????? 8257537+0 ??????? ??????? 8257536+0 ??????? ???????? ??????????? 4227858432 ????? (4,2 GB), 942,633 c, 4,5 MB/c After that I wanted to create new filesystem using fdisk: root@yurko-laptop:/home/yurko-laptop# fdisk /dev/sdb You will not be able to write the partition table. WARNING: DOS-compatible mode is deprecated. It's strongly recommended to switch off the mode (command 'c') and change display units to sectors (command 'u'). Command (m for help): p Disk /dev/sdb: 4227 MB, 4227858432 bytes 4 heads, 63 sectors/track, 32768 cylinders Units = cylinders of 252 * 512 = 129024 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Device Boot Start End Blocks Id System /dev/sdb1 18 32768 4126596 b W95 FAT32 Command (m for help): fdisk showed that the partition still exists and I can't write the partition table. I tried to delete the existing partition: Command (m for help): d Selected partition 1 Command (m for help): w Unable to write /dev/sdb root@yurko-laptop:/home/yurko-laptop# Why am I not be able to write the partition table? Does it mean that some hardware failure occurred? And is it possible to repair the current USB drive? I've tried to use hdparm and it showed that the readonly flag is on: root@yurko-laptop:/home/yurko-laptop# hdparm /dev/sdb /dev/sdb: SG_IO: bad/missing sense data, sb[]: f0 00 05 00 00 00 00 0a 00 00 00 00 26 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 multcount = 0 (off) readonly = 1 (on) readahead = 256 (on) geometry = 1016/131/62, sectors = 8257536, start = 0

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