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  • HD video editing system with Truecrypt

    - by Rob
    I'm looking to do hi-def video editing and transcoding on an unencrypted standard partition, with Truecrypt on the system partition for sensitive data. I'm aiming to keep certain data private but still have performance where needed. Goals: Maximum, unimpacted, performance possible for hi-def video editing, encryption of video not required Encrypt system partition, using Truecrypt, for web/email privacy, etc. in the event of loss In other words I want to selectively encrypt the hard drive - i.e. make the system partition encrypted but not impact the original maximum performance that would be available to me for hi-def/HD video editing. The thinking is to use an unencrypted partition for the video and set up video applications to point at that. Assuming that they would use that partition only for their workspace and not the encrypted system partition, then I should expect to not get any performance hit. Would I be correct? I guess it might depend on the application, if that app is hard-wired to use the system partition always for temporary storage during editing and transcoding, or if it has to be installed on the C: system partition always. So some real data on how various apps behave in the respect would be useful, e.g. Adobe, Cyberlink, Nero etc. etc. I have a Intel i7 Quad-core (8 threads) 1.6Ghz (up to 2.8Ghz turbo-boost) 4Gb, 7200rpm SATA, nvidia HP laptop. I've read the excellent posting about the general performance impact of truecrypt but the benchmarks weren't specific enough for my needs where I'm dealing with HD-video and using a non-encrypted partition to maintain max performance.

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  • White Screen, No Errors.

    - by GruffTech
    So.. Interesting problem for you guys, As I'm completely lost as to what to do, or where to take the next step. Server & Application Environment. CentOS release 5.3 (Final) Apache 2.2.3-22 EnableSendfile off EnableMMAP off ErrorLog logs/error_log LogLevel debug PHP-5.2.6-2 error_reporting = E_ALL display_errors = on log_errors = on max_execution_time=300 max_input_time=60 memory_limit=512mb Kohana 2.3 PHP Environment. HAProxy 1.3.15.6-2 MemCacheD 1.2.6-1 Our application is split between 3 web servers, mounting a NFS Storage server, and sticky load balancing between the 3 web servers. The application seemingly runs great, but every so often, instead of loading, the application just shows a pure white page. Not a 404 Error, or a 500 Server Error, a clean white page. And it returns instantly, so its not a execution time error. Nothing in the Error log, or Server-Error Log, Proxy log shows standard proxied connection, Just the standard 200-Status in Access log, with 256 bytes transferred. To me, this leads to tell me that the application itself is having a problem. A rare, unexplainable, seemingly random, problem that causes what we've now called the "White Screen of Death." Our developers all say that since there is nothing going to our error logs, that it must be a server problem. But I say the same thing, There's nothing going to ANY of our logs (relevent to this anyway), and we're not having httpd children crash from what i can tell. Any ideas on how i can increase my logs, or somehow prove that its not a bug in PHP, Apache, CentOS, ect? Or if it is somehow a bug, identify it?

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  • Have it fixed or buy a new one?

    - by Workshop Alex
    My dual-monitor system has just become a single-monitor system again when the older monitor decided it would be nice to just turn to black. It's a Samsung LCD monitor and is over three years old. Not sure if the warranty is still valid but I just wonder what option would me more efficient: 1) Have the monitor fixed for a small amount. 2) Buy a new monitor for a slightly bigger amount. When monitors were still expensive, I wouldn't doubt about this and would just have my monitor repaired. But prices are so low nowadays, (and repairs are expensive) that I wonder if it's worth the trouble... Of course, I'm in no hurry since I still have another monitor. It's just that I liked the dual-monitor setup. Solved! Just ordered a new monitor. A Samsumg Syncmaster T260HD 25,5". Much more than it would cost me if I just had my old one repaired but I noticed that this one has a build-in TV tuner, plus speakers. It's way more expensive than a repair, but it's worth the additional value it provides.

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  • Cisco IOS BVI ACL: Only allow established UDP

    - by George Bailey
    Related: Cisco IOS ACL: Don't permit incoming connections just because they are from port 80 I know we can use the established keyword for TCP.. but what can we do for UDP (short of replacing a Bridge or BVI with a NAT)? Answer I found out what "UDP has no connection" means. DNS uses UDP for example.. named (DNS server) is lisenting on port 53 nslookup (DNS client) starts listening on some random port and sends a packet to port 53 of the server and notes the source port in that packet. nslookup will retry 3 times if necessary. Also the packets are so small that it does not have to worry about them coming in the wrong order. If nslookup receives a response on that port that comes from the servers IP and port then it stops listening. If the server tried to send two responses (for example a response and a response to the retry) then the server would not care if either of them made it because the client has the job to retry. In fact.. unless ICMP 3/3 packet gets through the server would not know about a failure. This is different from TCP where you get connection closed or timed out errors. DNS allows for an easy retry from the client as well as small packets.. so UDP is an excellent choice because it is more efficient. In UDP you would see nslookup sends request named sends answer In TCP you would see nslookup's machine sends SYN named's machine sends SYN-ACK nslookup's machine sends ACK and the request named's machine sends the response That is much more than is necessary for a tiny DNS packet

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  • Loading a big database dump into PostgreSQL using cat

    - by RussH
    I have a pair of very large (~17 GB) database dumps that I want to load into postgresql 9.3. After installing the database packages, learning more or less how to use them, and fiddling around a little on various StackExchange pages (particularly this question), it looks like a proper command for me to use is something like: cat mydb.pgdump | psql mydb because of the format the dump is in. My machine has 16 GB of RAM, and I'm not familiar with the cat command but I do know that my RAM is 99% exhausted and the database is taking a while to load. My machine isn't non-responsive to the point of hanging; I can run other commands in other terminal windows and have them execute at a reasonable clip, but I am wondering if cat is the best way to pipe in the file or if something else is more efficient? My concern is that maybe cat could be using up all the RAM so the database doesn't have much to work with, throttling its performance. But I'm new to thinking about RAM issues like this and don't know if I'm worrying about nothing. Now that I think about it, this seems to be more of a question about cat and its memory usage than anything else. If there is a more appropriate forum for this question please let me know. Thanks!

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  • Windows 7 BSOD when changing power plan

    - by dd5
    i have a strange problem. When i want to change the power plan on my laptop from High performance to Balanced, Windows freezes and i get bsod. The power plan settings are all default. Laptop specs: - Intel Core i3 330M/350M - Intel® HM55 Express Chipset - DDR3 1066 MHz SDRAM 8GB - ATI Mobility™ Radeon HD5730 1GB DDR3 VRAM - Intel SSD330 128gb - Windows 7 Home premium I've searched the internets but couldnt find a similar issue. BSOD first started when i installed this SSD and stopped when i've updated the chipset controller driver then started again yesterday when i wanted to change the power settings plan.Minidump file here. Any help with this weird issue appriciated, thanks. Edit: - i've ran Memory diagnostic tool, - Intel SSD diagnostics - and updated the firmware to 3.2.1. Non of these steps worked or shown signs of errors - but still got BSOD when changing power plan settings. After analizing the dump file via osronline.com here a first few lines: CRITICAL_OBJECT_TERMINATION (f4) A process or thread crucial to system operation has unexpectedly exited or been terminated. Several processes and threads are necessary for the operation of the system; when they are terminated (for any reason), the system can no longer function. Arguments: Arg1: 0000000000000003, Process Arg2: fffffa8008661b30, Terminating object Arg3: fffffa8008661e10, Process image file name Arg4: fffff800033de270, Explanatory message (ascii) -- Solution -- Provided by Vinayak: After installing the Intel Rapid storage Technology from MajorGeeks, i didn't experience a BSOD since, thank you :)

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  • Is there a way to exclude a specific drive vdi from "snapshots" in VirtualBox?

    - by Graza
    ...or is there another space-efficient way of dealing with the page/swap file of the Guest O/S? I've realised that its quite possible/likely that one of the things which "bloats" the snapshot/diff vdi's when a snapshot is taken is the guest operating system's pagefile. For example, say I have a 2Gb swap-file in a Windows guest OS, and over the course of a few weeks the usage of the swap file has gone over 1Gb a couple of times. When I next create a snapshot, it seems likely that I'd be almost guaranteed around 1Gb of space taken up in the new differencing disk just because of changes in the swap file. Obviously (provided I never did "live" snapshots on running or paused machines, and only ever did them when the machine was shut down), I would not need any of the information in the swap file to be saved. So this would simply be a waste of 1Gb. I'm wondering if there's a way to attach a vdi to a VM and flag it as "exclude from snapshots" - which would mean I could put the swap file on a different vdi which would never be included in a snapshot. Or if anyone has any other suggestions. Or an explanation about why it might not be an issue. I could obviously delete and recreate a swap drive vdi every time I did a snapshot to achieve the same effect, but this is a little more effort than simply clicking "create snapshot"....

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  • Network speed between a VM and another machine which is not residing on the same host, is 11MB/s at most

    - by Henno
    Problem Network speed between a VM and another machine which is not residing on the same host, is 11MB/s at most. Topology Facts ESXi5 version is 5.0.0.504890 VM has the latest Vmware Tools installed VM is using E1000 network driver Physical box has Win Srv 2008 R2 as the OS CrystalDiskMark says the drive on physical box can read/write 100MB/s vCenter is another vm on esx both vm and physical box are showing 1Gbps link speed Configuration Networking shows vmnic0 as 1000 Full NTttcp is a client/server tool from Microsoft for measuring pure network throughput Here's what I've done so far: Test1: VM is running Filezilla FTP Server (default settings, one user account made) Physical box is running Filezilla FTP Client (default settings) Physical box is uploading a big file to FTP server Transfer speed (as observed by Windows Task Manager on both machines): ~11MB/s (bad) Physical box is downloading that file from FTP server Transfer speed (as observed by Windows Task Manager on both machines): still ~11MB/s (bad) Could it be disk performance issue? Test2: Physical box is running ntttcpr.exe -a 6 -m 6,0,VM_IP_ADDRESS VM is running ntttcps.exe -a 6 -m 6,0,PHY_BOX_IP_ADDRESS Transfer speed (as observed by Windows Task Manager on both machines): ~11MB/s (bad) Could it be switch performance issue? Test3: physical box is running vSphere Client I open Summary Storage datastore Browse Datastore... from physical box and upload a file to datastore Transfer speed (as observed by Windows Task Manager on physical box): ~26-36MB/s (good) Could it be a vm specific issue? Test4: Installed ntttcp to another vm on the same esx server Measured network performance between vms on the same esx server with NTttcp Transfer speed (as observed by Windows Task Manager on physical box): ~90-120MB/s (excellent :) Test5: I have another esx server on the same site, connecting to the same datastore and same switch. Those two ESX servers have both 2 NICs. One NIC goes to switch while the other goes directly to the other ESX server. vMotioned one of the testing vms off to the other ESX host Measured network performance between vms on different esx servers with NTttcp Transfer speed (as observed by Windows Task Manager on physical box): ~11MB/s (bad) While I'm aware of these: ESXi 4.1 slow file transfer ESXi 5 network performance is slow Debian Etch and ESXi slow network speeds VMWare ESXi slow file copy to guest they did not help (or I must have been missed something)

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  • Hosting a server for websites, ftp and random use at home?

    - by Zolomon
    I'm wondering what's the best option for me if I want to move all my hosted websites (from a hosting company) to a server at my own home? Basically, the needs I have are: be able to host websites using PHP/ASP.NET (haven't really decided yet - both would be preferred!) enable FTP so I can create accounts for my family members to access the server for file handling SSH SSL - for secure connections (this is something you have to buy/apply for per domain, not sure if there are any server side settings that have to be made) be able to stream video remote desktop host home-brew applications that can run as services use either MySQl/SQLite/SQL for relational database storage What should I think of before I buy a server? What hardware will I need, what will limit my server? I basically want to learn networking better as I'm a software and web developer but haven't had the resources to acquire any serious toys until now. At the time of writing, most of my websites have 60 visits/day so I don't suspect them to be very demanding. Is there something I haven't thought of that I should have? What OS would you suggest I run? FreeBSD vs Windows Server vs ?

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  • KVM and libvirt: How to configure a new disc device to an existing VM?

    - by initall
    I've got an Ubuntu 9.04 server running two VM's. In /etc/libvirt/qemu/machine1.xml two disk devices are defined like this: <devices> <emulator>/usr/bin/kvm</emulator> <disk type='file' device='disk'> <source file='/vserver/machine1/disk0.qcow2'/> <target dev='hda' bus='ide'/> </disk> <disk type='file' device='disk'> <source file='/vserver/machine1/disk1.qcow2'/> <target dev='hdb' bus='ide'/> </disk> I need more storage space in at least one of the devices and thought about adding a third hdc device by simply adding one with same style as above and re-organising my mount structure (The virtual sizes of the current qcow2 files are unfortunately limited.) My problem is that reloading libvirtd and restarting the VM do not result in a new visible device (checked with fdisk). I'm aware of extending an existing qcow2 file (converting to raw format, cat-ing/adding the new one, using smth. like gparted) - but only as a last resort. Hopefully it's something very simple I'm missing?

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  • Calendar booking issue - Exchange 2003 and 2010

    - by NaOH
    In our organization we are running Exchange 2003 and 2010 simultaneously, with the hopes of migrating everyone to Exchange 2010 sometime within the next few months. Everyone is using Outlook 2010. Recently, we had an issue with transaction log storage on the Exchange 2003 server. This was resolved, but for some reason no meeting rooms on the Exchange 2003 server will automatically book meetings any longer. I have played around with this for a while, changing calendar permissions, turning resource scheduling off and back on, etc. No dice. My next step was to try migrating a resource to the Exchange 2010 server. After doing so, and setting it up as a Room, enabling Auto-Accept and removing the EnableDirectBooking registry entry on my PC, I can book a meeting with this room. If EnableDirectBooking is enabled, I get an error message stating: "Meeting Room" declined your meeting because it is recurring. You must book each meeting separately with this resource. This is despite the fact that the meeting I'm attempting to create has no recurrence. Now, I have also created a new test Room from scratch on the Exchange 2010 server, and I can book a meeting with this Room regardless of whether or not I have the EnableDirectBooking reg entry in place. All users here have this registry entry, and I'd rather not have to figure out how to push something out to remove it from every PC. Rather, I'd like to figure out what's different between the configurations of these two meeting rooms so that I could book a meeting room regardless of whether EnableDirectBooking is enabled or not. Any ideas, anyone? Thanks!

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  • Free software for backing up an attached network drive

    - by Richard
    My wireless router comes with a USB connector which allows me to plug an external hard drive in and it'll act as a Network Attached Storage. The problem is that I want to backup this hard-drive to the external drive of another computer so that if the NAS drive fails, I don't lose everything. However, Windows 7 Backup refuses to include the NAS as a location to backup. I can't fool it by mapping it to a drive letter either. Google presents lots of pages on how to backup files to a NAS, but not the other way around. Can anyone advise me on free software which can do incremental backups of a NAS drive to an external drive attached the computer it is running on? I'm aware of this question but the top answers have one or more of the following issues: They aren't free. The free version cannot backup a NAS. They cannot do incremental backups. They're just a script and therefore have limited other functionality (eg. disk space management, scheduling, compression, etc.etc.)

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  • NFS confusion - writing many small files

    - by Antonis Christofides
    I have a Debian squeeze amd64 which is at the same time a NFS4 server and client (it mounts itself through NFS4). The local directory that leads directly to disk is /nfs4exports/mydir, whereas /nfs4mounts/mydir is the same thing mounted through NFS, using the machine's external IP address. Here is the line from fstab: 176.9.116.102:/mydir /nfs4mounts/mydir nfs4 soft 0 0 I have an application that writes many small files. If I write directly to /nfs4exports/mydir, it writes thousands of files per second; but if I write to /nfs4mounts/mydir, it writes 4 files per second or so. I can greatly increase speed if I add async to /etc/exports. (Writing a single large file to the NFS directory goes at more than 100 MB/s.) I am confused by the description of async in NFS. If my application accesses the local directory, system calls like write and close return even if caches have not been flushed to permanent storage. Apparently this is not true with NFS sync behaviour. However, with NFS async behaviour, even calls like fsync are ignored. Isn't it possible to work like local files, i.e. generally work asynchronously, but honour fsync and O_SYNC?

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  • How to find out what is causing a slow down of the application on this server?

    - by Jan P.
    This is not the typical serverfault question, but I'm out of ideas and don't know where else to go. If there are better places to ask this, just point me there in the comments. Thanks. Situation We have this web application that uses Zend Framework, so runs in PHP on an Apache web server. We use MySQL for data storage and memcached for object caching. The application has a very unique usage and load pattern. It is a mobile web application where every full hour a cronjob looks through the database for users that have some information waiting or action to do and sends this information to a (external) notification server, that pushes these notifications to them. After the users get these notifications, the go to the app and use it, mostly for a very short time. An hour later, same thing happens. Problem In the last few weeks usage of the application really started to grow. In the last few days we encountered very high load and doubling of application response times during and after the sending of these notifications (so basically every hour). The server doesn't crash or stop responding to requests, it just gets slower and slower and often takes 20 minutes to recover - until the same thing starts again at the full hour. We have extensive monitoring in place (New Relic, collectd) but I can't figure out what's wrong; I can't find the bottlekneck. That's where you come in: Can you help me figure out what's wrong and maybe how to fix it? Additional information The server is a 16 core Intel Xeon (8 cores with hyperthreading, I think) and 12GB RAM running Ubuntu 10.04 (Linux 3.2.4-20120307 x86_64). Apache is 2.2.x and PHP is Version 5.3.2-1ubuntu4.11. If any configuration information would help analyze the problem, just comment and I will add it. Graphs info phpinfo() apc status memcache status collectd Processes CPU Apache Load MySQL Vmem Disk New Relic Application performance Server overview Processes Network Disks (Sorry the graphs are gifs and not the same time period, but I think the most important info is in there)

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  • split virtualization design based on environment or server role?

    - by Dan
    I'm setting up the server environment for a new software development group, which will include 4 test environments. These are web applications, so each environment will have an application server and a database server. I'm planning on buying two physical servers (e.g. 6-core CPU each with 12GB or so of RAM), and I'm thinking virtualization is appropriate here. With that in mind, I've thought of a couple ways that I could organize the virtualization strategy: - Separated by server role: Server 1 has all the application servers, each in their own guest VM. Server 2 has all the databases. OR - Separated by environment: Server 1 has a VM for two of the environments, with the VM containing both the app server and the database server. Server 2 would also contain two test environments, with the same style (app server and database in same VM). The advantages I see with all the app servers on one server and all the databases on another server is that I could probably be more efficient with the database server (one instance running multiple databases). But the other option seems easier to manage (archives/restorations would be contained in a single VM). Any recommendations? TIA.

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  • Patch management on multiple systems

    - by Pierre
    I'm in charge of auditing the security configuration of an important farm of Unix servers. So far, I came up with a way to assess the basic configuration but not the installed updates. The very problem here is that I just can't trust the package management tools on those machine. Indeed some of them did not sync with the repository for a long time (So I can't do a "yum check-updates" on Redhat for example). Some of those servers are not even connected to the internet and use an company repository. Another problem is that I have multiple target systems: AIX, Debian, Centos/Redhat, etc... So the version could be different (AIX) and the tools available will be different. And, last but not least, I can't install anything on the target system. So I need to use a script to retrieve the information and either: process it directly or save the information to be able to process it later on a server (Which may happen to run a different distribution than the one on which the information have been retrieved). The best ideas I could come up with were: either retrieve the list of installed packages on the machine (dpkg -l for example on debian) and process it on a dedicated server (Directly parsing the "Packages" file of debian repositories). Still, the problem remains the same for AIX and Redhat... or use Nessus' scripts to assess vulnerability on the installed packages, but I find this a bit dirty. Does anyone know any better/efficient way of doing this ? P.S: I already took time to review some answers to similar problems. Unfortunately Chef, puppet, ... don't meet the requirements I have to meet. Edit: Long story short. I need to have the list of missing updates on a Unix system just like MBSA on Windows. I'm not authorized to install anything on this system as it's not mine. All I have are scripts languages. Thanks.

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  • Bacula virtual backup job doesn't run, no output?

    - by Zoredache
    I am trying to get Virtual Backups working, but when I try to run a virtual backup job, it appears to get created, but then never seems to actually run. I have a full, and a couple incremental backups. status director JobId Level Files Bytes Status Finished Name ==================================================================== 1283 Full 10,565 1.963 G OK 21-Dec-12 09:47 nms-Job 1284 Incr 314 129.6 M OK 21-Dec-12 09:49 nms-Job 1285 Incr 230 147.2 M OK 21-Dec-12 09:51 nms-Job 1288 Incr 525 138.8 M OK 21-Dec-12 11:25 nms-Job I attempt to start a job from bconsole like this. *run job=nms-Job level=VirtualFull Using Catalog "MySQL" Run Backup job JobName: nms-Job Level: VirtualFull Client: nms-FileDaemon FileSet: nms-FileSet Pool: nms-pool (From Job resource) Storage: File_d1 (From Pool resource) When: 2012-12-21 13:07:54 Priority: 10 OK to run? (yes/mod/no): Job queued. JobId=1291 Then my new job, just sits there, doing nothing. The JobStatus shows that the job was created, but it appears to never run? All the full, and incremental backups are terminating normally. *llist jobid=1291 JobId: 1,291 Job: nms-Job.2012-12-21_13.07.56_07 Name: nms-Job PurgedFiles: 0 Type: B Level: F ClientId: 4 Name: nms-FileDaemon JobStatus: C SchedTime: 2012-12-21 13:07:54 StartTime: 2012-12-21 13:07:56 EndTime: 0000-00-00 00:00:00 RealEndTime: 0000-00-00 00:00:00 JobTDate: 1,356,124,076 VolSessionId: 0 VolSessionTime: 0 JobFiles: 0 JobErrors: 0 JobMissingFiles: 0 PoolId: 19 PooLname: nms-pool PriorJobId: 0 FileSetId: 11 FileSet: nms-FileSet I am getting very frustrated, that this isn't working, mostly because it isn't giving me any error logs, or output at all. I submit the job, and as far as I can tell nothing happens. Is there some status, or debugging level that I can set to get a useful information about why this isn't working? What can I do to make this work? I was originally running Bacula 5.0.2 on Debian Squeeze, out of frustration, I upgraded to the 5.2.6 in the backports repository, hoping that a new version might give me better results.

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  • Small store infrastructure - where to begin?

    - by KevinM1
    It looks like my older brother is about to change jobs - from lawyer to shooting range proprietor - and since I'm the family 'computer guy' I have the task of coming up with and setting up the in-store equipment. Only problem, I don't know how to start or where to look. I'm a web programmer, not an IT specialist. To that end, I figured I should ask the pros. Users: 3 (myself, my brother, and his business partner) Equipment: 1 Windows (likely 7) desktop for POS software, 1 Windows desktop/laptop for backroom use (bookkeeping, etc.) Other: ?? I'm looking for a reliable and, well, idiot-proof way to handle backups. Neither my brother nor his business partner are tech savvy (A web browser, email, MS Word and Excel are about the extent of their knowledge), so I need something they can handle. On-site would be preferable to off-site, given my brother's hesitance to have sensitive business data be handled by an outside source. I'm also looking for a small on-site server. I estimate that, at most, only 2-3 users will need access. A linux solution would keep costs down, but I'm concerned about Windows <- linux interoperability. Would the store security cameras' storage be handled by the security company, or would we have to stream that data to our own server? I know from my own experience with personal security that the company gives/loans a recording device to the home owner, but I'm not sure about business security. I know this sounds like a shopping list, and it's pretty vague. I wish I could give more detail, but between my own ignorance and things not being 100% nailed down on the business end, I'm a bit stuck. At the very least I'd like a nudge - links on a place to start, what to look for, things I need to think about, etc. - for this endeavor. Thanks.

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  • How do I rename my old Program Files folder?

    - by SteveJ
    I installed a new SSD as my boot drive (C:), installed a fresh version of Windows 7 64-bit, and kept my existing SATA drive in the system (D:). I want to keep using my D: drive for file storage (no sense filling up the SSD with stuff that isn't performance critical) and I haven't formatted the D: drive because there's stuff on there I want to keep. I also want to create a new "D:\Program Files" folder so I can install apps that aren't performance-critical there. So I decided I'd rename the existing "D:\Program Files" from my old Windows install to "D:\Old Program Files" and then create a new "D:\Program Files" directory. Easy, right? I can see "D:\Program Files" just fine in Explorer. I right click, select Rename, and type "Old Program Files." I get the alert that says I need Admin permission to do this, so I press the confirm button with the shield. But the folder still appears as "Program Files" in Explorer. I jump out to the command line, and it appears as "Old Program Files" when I do a dir. I can even do mkdir "Program Files" and when I do a dir they both appear. But in the Explorer GUI, it looks like I have two "Program Files" folders. This will be confusing during app installation because I won't be able to tell which one is which. I've tried poking around in the properties tab of the old folder, but can't find anything that would explain what's causing the issue. How do I rename the old Program Files folder?

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  • EMC VNX iSCSI setup - unsure about SP/port assignment

    - by pauska
    We have a new VNX5300 waiting to get configured, and I need to plan out the network infrastructure before the EMC tech arrives. It has 4x1gbit iSCSI per SP (8 ports in total), and I'd like to get the most out of the performance until we jump over to 10gig iSCSI. From what I can read from the docs - the recommendation is to use only two ports per SP, with 1 active and 1 passive. Why is this? It seems kind of pointless to have quad-port i/o-modules and then recommend to not use more than two of them? Also - I'm a bit unsure about the zoning. The best practices guide state that you should separate each port on each SP from each other on different logical networks. Does this mean that I have to create 4 logical networks to be able to use all 8 ports? It also gives the following example: Does this mean that A0 and B0 should sit on the same physical switch aswell? Won't this make all traffic go on one switch (if both A1 and B1 are passive)? Edit: Another brainpuzzle I don't get it - each host (as in server) should not have more iSCSI bandwidth available than the storage processor. What on earth does this matter? If serverA have 1gbit and serverB have 100mbit, then the resulting bandwith between them is 100mbit. How can this result in some kind of oversubscription? Edit4: Wait, what. Active and passive ports? The VNX runs in a ALUA configuration with asymmetrical active/active.. there shouldn't be any passive ports, only preferred ones..

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  • AWS own email domain and some generic questions

    - by John Brunner
    I'm getting started with Amazon Web Services and I have a few question I'm not sure about. As every (company) webpage I want to use an "[email protected]" email adress, but how is that done? I looked up at godaddy.com (for domain registration), the offer me an email adress like I want, but for 3 dollars per month. Is this possible with AWS? Because at AWS you have just a complex domain which is not very userfriendly or serious. Also I want to host my dynamic webpage on the amazon cloud, but I'm not sure if I'm doing that right. I've read many guides, and all I know is that I have to purchase a Elastic Compute Cloud, and a Simple Storage Service... and every guide is working with the basic linux package, why not Windows? Is it more expensive? I just want to host a mySQL Server for the dynamic webpage, which is reached over a normal domain. And one last question, if I sign up for an AWS account it asks me for an email account. But I found it a little bit unserious to write there my free-webmailer-adress... How is it done the normal way? Thanks in advance! Best regards, john.

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  • Backup solution to backup terabytes and lots of static files on linux server?

    - by user28679
    Which backup tool or solution would you use to backup terabytes and lots of files on a production linux server ? Note that the files are all different and almost never modified, and usage is mostly adding files, so data volume is today 3TB growing all the time at around +15GB/day. Please do not reply rsync. Basic unix tools are not enough, rsync does not keep history, rdiff-backup miserably fails from time to time and screw the history. Moreover these are all file based backup, which put a lot of IOwait just to browse directories and query stat(). But i guess, except R1Soft CDP, there is no way around that. We tried R1Soft CDP backup, which is block level backup, and it proved good and efficient for all our other servers, but systematically fails on the server with 3 terabytes and gazillions of files. That is already more than 2 months that the engineers of R1Soft and datacenter are playing a hot ball game... and still no backup except regular rsync We never tried big commercial solutions, except R1Soft CDP since it was provided as an optional service by the datacented hosting our servers.

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  • Cloning a NAS drive which hosts a SQL Server DB

    - by Adrian Hand
    We have a system in the field running a server application which is suffering with major performance issues. The system in question has 2 onboard 300gb sas drives in RAID 5 from which it boots Windows Server 2003, and a 6tb buffalo terastation NAS unit (also RAID 5) to which the server app does all of its reading and writing. I believe the terastation is the source of all our woes. Whilst under load, reads and writes tick by at something of the order of 1meg/sec, though the network in question is hardly utilised. The terastation contains various data, but crucially hosts a full instance worth of SQL Server .mdf and .ldf files (master etc - the whole shooting match) I wish to stop all the services on the server, then take everything on the terastation and essentially clone it to some alternative onboard storage, so as to eliminate the terastation from the equation as far as poor performance is concerned. ie the terastation is currently drive D: - I want to copy everything off and then have the duplicate assume the drive letter so that as far as the software is aware, nothing is different. This is tricky because of the mdf and ldf files - everything else will work with a straight up file copy. Can anyone suggest a means to achieve what I am describing? Many thanks!

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  • How to get rid of "Maxback Engine" for good?

    - by Jonik
    I used to have a Maxtor Shared Storage II network drive; it broke down long ago already. (Later I tried to recover some data from it, and partially succeeded, but haven't yet fully documented it on that question.) Anyway, I just noticed there are still some lingering bits remaining of the (thourougly crappy) software that came with the Maxtor device: a background process called "MaxBack Engine". I googled around a bit and found something related but not very useful: http://www.straitmac.com/jforum/posts/list/600.page http://discussions.apple.com/thread.jspa?threadID=725692 Under /Applications I found "Maxtor EasyManage.app" which I used to use for controlling the drive, and showed it some "rm -rf". Before deleting, I noted that the bundle did contain "MaxBack Engine.app" under Content/Resources. But still, after reboot, the "MaxBack Engine" process is back. I did notice though that it only appears when logging in with my usual user account; with another account it wasn't launched. So, dear Mac gurus, what could I do about this pest? I guess I could fall back to some Unix hackery and write a cronjob that kills any process with that name, but obviously it'd be nicer to be able to clean up from my computer everything left behind by Maxtor's piece of software.

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  • "iostat" command different in two equal machines

    - by Oz.
    We have several machines on Amazon (ec2) of the type c1.xlarge with 8 cpus, running the Amazon AMI. Details on the machine: 7 GB of memory 20 EC2 Compute Units (8 virtual cores with 2.5 EC2 Compute Units each) 1690 GB of instance storage 64-bit platform I/O Performance: High API name: c1.xlarge One out of the several machines is showing a high load average, since we have run the last yum upgrade a couple of weeks a go. We did not yet update the other machines, and everything looks normal on them. The strange thing is that the top command not showing any hint for the cause of the load. CPUs are - 4.8%us, 1.1%sy, 0.0%ni, 94.1%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st. Mem is about 1.5GB free. Any idea what could it be, or where else can we check? iostat command on the proper machine: avg-cpu: %user %nice %system %iowait %steal %idle 8.97 0.03 4.46 0.19 0.14 86.23 Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn xvdap1 1.60 0.69 55.38 587620 47254184 xvdfp2 2.64 1.10 61.04 934786 52091056 xvdfp4 0.86 0.19 41.72 163866 35601920 xvdfp1 4.37 36.59 73.89 31220810 63051504 xvdfp3 8.03 7.08 94.63 6045402 80749184 iostat command on problematic machine: avg-cpu: %user %nice %system %iowait %steal %idle 9.29 0.04 5.55 0.26 0.11 84.74 Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn xvdap1 2.13 3.34 68.85 246244 5077888 xvdfp1 7.60 74.31 104.88 5480362 7734840 xvdfp3 13.22 73.67 125.00 5433386 9218600 xvdfp4 1.11 0.76 65.08 55762 4799248 xvdfp2 4.16 3.31 99.17 243818 7313264 Many thanks for the help.

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