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• Boot camp with Vista crashes on startup

  - by Mark Pim

  I have a 2006 vintage MacBook Pro (Intel Core 2 Duo) and have been using Boot Camp since it was in beta. I had been running XP SP2 on it with Tiger quite happily. I've recently wiped and reinstalled everything to upgrade to Leopard. After installing Leopard, I fired up the Boot camp assistant and used it to install the Windows 7 RC. That worked really nicely, but my HFS+ driver didn't work under Windows 7 yet so I decided to install Vista instead. I didn't repartition the drive, just launched the Vista installation disk from BIOS and told it to overwrite the existing Windows 7 install. It installed fine and I installed the Boot Camp drivers, still all fine. Now, however, every time I boot into Windows and login it hard reboots itself as the desktop is appearing. After this it works fine again. Until the next power off. Has anyone had any similar problems? Or can offer suggestions on how to solve this?

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• Slow Web Performance on two Windows 2008 R2 Terminal Servers

  - by Frank Owen

  We have two Windows 2008 R2 servers that we use for agents to log into to access our customers systems. Saturday morning we received complaints that on both servers the web is running horribly slow. This happens on all websites and the majority of the time the web site times out trying to load. Other users located at the same site but using their desktop machine do not see any issue. We have rebooted the boxes and checked settings and cannot find the cause. The CPU/Memory/Network/Disk Space use on the server is very low. I thought it might have been a MS update causing the issue but it appears the last update was applied in January. We have rebooted both boxes and I am in process of trying a different browser. Any ideas what could be causing this?

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• Too many processes?

  - by Mophily

  VMware Fusion v3.0.1 One vm for Windows XP, converted and recently expanded the disk size. Mac OS X 10.5.8, 2 x 3 GHz dual-core intel xeon machine. Immediately after booting, and before VMware Fusion is launched, the Activity Monitor shows eight processes associated with "vm". What caught my eye is the duplicates: netifup and dhcpd. I noticed this while trying to re-establish network connectivity after the upgrade to 3.0.1. I am not sure when the network connection was clobbered, so I cannot say it happend during the upgrade. Is eight processes typcial? I expect about six, as listed in other notes and documents on the web site. Could this be related to the failure to connect to the network?

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• MacBook Refuses to Boot

  - by pas09

  I have a MacBook that has unfortunately died on me. I randomly got a pop up message that said I needed to restart my computer, and once I did, I was greeted with the blinking folder question mark start up screen. I've tried everything, including running Disk Utility repair and reformatting the hard drive and reinstalling OS X. All of my data is backed up and safe, I just need my computer to start again. Before I go off and buy a new hard drive, I wanted to see if there is anything I might have forgotten.

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• Viewing and deleting partitions using the BIOS?

  - by cluelesscoder

  I have an M4A785TD-M EVO Asus motherboard which uses Asus Express Gate for its motherboard (says American Megatrends, Inc at the bottom). I activate it by pressing Del; also says Tab activates BIOS Post but that doesn't seem to do anything. I went into this expecting to see a breakdown of the partitions. I have a 300GB hard-drive separated into 3 partitions. While it does show SATA for my main hard-drive and my disk drive, it doesn't show the partitions. Is this typical? Do I have to us an OS-based tool to delete the partitions or can I delete using my BIOS? I tried updating the BIOS through Asus's Update utility but it appears to be broken (connects/disconnects repeatedly). I used HWiNFO32 to get some information: BIOS Date: 06/30/10 BIOS Version: 2103 EFI BIOS: Not Capable Tried to update but it directs me to biosagentsplus.com which wants $30 for the download (another question would be how to avoid them).

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• Western Digital Mybook is creating folders I didn't create

  - by Rogue

  I have a WD MyBook which has been creating empty folders with a long string of numbers and alphabets and some shorter ones with just some numbers with a 0kb file in it Some of these can be deleted but some just stay put. It's irritating to find new ones everyday and now i have a collection of them which don't delete is there any way to delete these ? Edit: I have scanned the drive using Antivirus and AntiMalware Software so i don't think it would have a virus One solution is copying all the matter elsewhere and formatting the hard disk but there is not guarantee that these folders wont reappear.

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• Increase performance of Samsung 830 256GB SSD

  - by Robert Koritnik

  I have a Samsung 830 SSD in my notebook connected to a SATA interface. This is a rather old HP notebook nc8430 which means SATA is SATA I and not II or even III that disk supports. But SATA I still supports speeds up to 150MB/s so I expected at least double values as per image below. CrystalDiskMark shows rather slow performance: I've been using this SSD for over a year now and I would like to know what to do to make it blazingly fast as other reports say it should be? Edit As suggested I'm adding AS SSD screenshot of the test. And Samsung Magician's benchmark which is likely biased...

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• Finding the file that is on a bad block on a HFS+ volume (debugfs for HFS+)

  - by Blair Zajac

  I have a drive in our iMac that has bad blocks, as booting from an Ubuntu 11.10 live CD and using ddrescue -f /dev/sda /dev/null finds them. I'd like to get the drive to remap them by writing to the blocks, say using hdparm --write-sector, but I don't want to do this without knowing what's in those blocks and finding the file that owns them, so I can restore the file from another source. I found fileXray but don't feel like spending $79 to map a block to a file and hfsdebug has been taken offline. Are there suggestions on a tool or technique to use? I looked at all the Ubuntu HFS+ packages to see if they could provide this info but nothing jumped out at me. BTW, I used Disk Utility to erase the empty space, but it didn't get any of the bad blocks to be remapped, according to smartctl -A.

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• Calculating IOPS for a single HDD - what am I doing wrong?

  - by red888

  So I know there is no standardized way of calculating IOPS for a HDD, but from everything I have read it appears one of the most accurate formulas is the following: IOP/ms = + {rotational latency} + ({block size} / {data transfer rate}) Which is IOs per millisecond or what the book I've been reading calls "Disk Service Time". Also rotational latency is calculated as half of one rotation in milliseconds. This was taken from the EMC book "Information Storage and Management" -arguably a pretty reliable source right\wrong? Putting this formula into practice consider this Seagate data sheet. I am going to calculate IOPS for the ST3000DM001 model for a block size of 4kb: Seek Average (Write) = 9.5 -I'll measuring IOPS for writes Spindle speed = 7200rpm Average Data Rate = 156MB/s So my variables are: Seek Time = 9.5ms Rotational latency = (.5 / (7200rpm / 60)) = 0.004s = 4ms Data Rate = 156MB/s = (0.156MB/ms / 0.004MB) = 39 9.5ms + 4ms + 39 = IO/ms 52.5 1 / (52.5 * 0.001) = 19 IOPS 19 IOPS for this drive clearly is not right so what am I doing wrong?

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• How to Delete File stderr1 on a SAP System?

  - by Techboy

  I have a file called stderr1 in the work directory of several of the SAP servers in my production cluster. It has grown to around 19GB's to fill the hard disk on each server. I have deleted all trace files and WP files from within transaction SM50 but that hasn't deleted it (or re-named it to .old). If I try to rename or delete it manually, it says I can't because the file is in use. Please can you tell me how I can delete or shrink the stderr1 file?

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• Windows 7 can't make back up

  - by J. Pablo Fernández

  I've been trying to get Windows 7 to make a backup for a week or so. I'm backing up to a local NAS and I'm getting this error: Windows Backup: Troubleshooting Options Check your backup Windows Backup could not create a zip file. This could be because the drive that Windows is installed on does not have enough space or it could be a temporary error. Make sure you have at least 400 MB of free space and try again. Backup time: 2009-09-07 14:48 Backup location: \VANGELIS\Shared\Backup\lennon\ Error code: 0x81000015 My local hard disk has 290GB free and my NAS has 200GB free. Any ideas what might be wrong?

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• EEE PC 701/4G Surf Internal Drive: Is it really SSD?

  - by Bart Silverstrim

  I have an old EEE PC with the 4 Gig internal drive. Everything I've read keeps saying it's an SSD drive; running lshw tells me that it's an ATA disk, Silicon Motion SM. The thing seems to be rather slow, though. I know it has a 900 Mhz Celeron processor and only 512 meg of RAM, but it seems like drive access is slow even for those specs. Does anyone know if it really has an SSD drive? I thought that compared to regular hard disks SSD's were blazing fast, and this feels like and acts like it's pulling from something more akin to an internal USB memory stick.

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• Create a share on iscsi drive in Windows Server 2012

  - by Crash893

  I am brand new to server administration but I don't belive im trying to do anything to exotic I have a windows server 2012 (standard) and a drobo 800i My goal is to setup company shares on the iscsi target I have setup on the drobo So far I have: initialized the iscsi and connected made the iscsi disk read/write(it default started as read only) formatted and mounted it (as drive E:) from the server local desktop I can see and write files to the E:\ drive in shares wizard I do not see it as a volume option when I view the volumes window I see (e: drobo Fixed 16tb 16tb) I'm new to everything but I would think since its a mounted drive I should be able to share a folder on it but it appears its not that straight forward suggestions?

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• Collect and Backup Photos from Multiple Photographers

  - by Graviton

  I have a few photographers working under me ( well, not exactly under me, but I say it anyway just for illustration purpose), so they shoot a lot of photos, the problem is that they all store their photos on their hard disk, and I have no way to retrieve them unless I pass them an USB and ask them to fill it with their photos. Very labor intensive and inefficient! Is there any other better ( more automated) ways of doing this? For the fear of losing the resolution, I don't really favor a online-synch approach, because I think all the photos uploaded to any website will suffer a resolution loss, which is the last thing I want. Is there a better idea? Edit: Being artistic as they are, I can't guarantee that they all use PC and Windows; so the software must at least be able to run on Mac.

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• Thoughts on Apache log file sizes?

  - by Nathan Long

  Do you place any limits on the size of Apache log files - access.log and error.log? Specifically, can you give: Reasons to limit log file sizes Disk space Any other? Reasons NOT to limit log file sizes Research into performance issues or security breaches Any other? Methods of doing so Cron job that periodically deletes the file, or the first N lines? Any other? Anything you might salvage before deleting For example, grep out how many times a file was downloaded before deleting the access logs I'd like get the thoughts of experienced sysadmins before I do anything. (Marking as community wiki since this may be a matter of opinion.)

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• Windows 8 Unable to perform hibernate

  - by Jones

  Windows 8 Enterprise edition x86. Already enabled hibernate option, to have it on shutdown menu (start menu?) and set to hibernate on lid closing. However it's not hibernating for me. When I'm trying to sleep, it's sleep fine and wake up like a kid. But when I'm demanding hibernate, it disconnects internet, turn off screen and be back to lock screen in one second. Steps I've tried. Complete shutdown Clear hiberfile.sys by disabling and enabling back Resetting my power settings. Causes I suspect: Had dual boot with BackTrack with Windows 8 GUI boot manager. It was fine until I reinstall BackTrack, bootmgr resetted and I'm in Ubuntu boot menu;. Using additional hard disk through USB cable.(But it's not a problem before few days, however) How to make my system to hibernate and wakeup again.

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• master-slave-slave replication: master will become bottleneck for writes

  - by JMW

  hi, the mysql database has arround 2TB of data. i have a master-slave-slave replication running. the application that uses the database does read (SELECT) queries just on one of the 2 slaves and write (DELETE/INSERT/UPDATE) queries on the master. the application does way more reads, than writes. if we have a problem with the read (SELECT) queries, we can just add another slave database and tell the application, that there is another salve. so it scales well... Currently, the master is running arround 40% disk io due to the writes. So i'm thinking about how to scale the the database in the future. Because one day the master will be overloaded. What could be a solution there? maybe mysql cluster? if so, are there any pitfalls or limitations in switching the database to ndb? thanks a lot in advance... :)

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• PC won't boot / USB and PS2 keyboards don't work

  - by Truncheon

  My brother's PC has stopped working. He now cannot boot into windows, and he can't access BIOS by pressing the DEL key as no keyboards work. He has tried 4 different keyboards, one of which is PS/2. He tried the USB keyboards on all the USB ports. I don't know why the BIOS would show the message "Floppy disks fail (40)", as there is no floppy disk drive in the PC. He has upgraded from XP to Vista (yes that's right, upgraded keeping the XP drivers, eyes roll). A BSOD occurred in Vista while he was browsing files. What steps should be taken to troubleshoot the problem?

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• What hardware makes a good MongoDB Server ? Where to get it ?

  - by João Pinto Jerónimo

  Suppose you're on dell.com right now and you're buying a server to run your MongoDB database for your small startup. You will have to handle literally tens of thousands of writes and reads per minute (but small objects). Would you go for 2 processors ? Invest more on RAM ? I've heard (correct me if I'm wrong) MongoDB handles the most it can on the RAM and then flushes everything to the disk, in that case I should invest on a CPU with a large L2 cache, probably 40GB of RAM and a solid state drive.. right ? Would I be better off with a high end (~$11,309, 2 expensive processors, 96GB of RAM) server or 2x(~$6,419, 2 expensive processors, 12GB of RAM) servers ? Is Dell ok or do you have better sugestions ? (I'm outside the US, on Portugal)

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• How do I make my Boot Camp partition bootable again?

  - by Dan Herbert

  I needed to resize my Boot Camp partition so I used Gparted to move and resize it. This seemed to work, except that now I can't boot into Windows. I can boot into OS X just fine. OS X can recognize the Boot Camp partition and view its contents. When I try to reboot into Windows, however I get the message: No bootable device -- insert boot disk and press any key The only solutions I've been able to find online suggest that the only way to fix this is to either clone the drive or remove the Windows partition and re-install it. Is there any way to fix my Windows partition so that I don't have to reinstall Windows again?

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• What causes Windows Boot to stall?

  - by Nick Berardi

  For about 6 months now I have been having this weird problem where Windows 7 fails to fully boot correctly. What happens is this. Starting Windows shows up on the screen. Then 3 out of 4 times nothing else happens, no Windows Flag animation, just nothing occurs. After 3 or 4 restarts repeating steps 1-2 above, the Windows Flag animation finally shows up and everything works as expected. My question is what is causing this problem in steps 1 and 2? Because I have tried the following with no luck: Error checking and correcting of any disk errors Updating drivers Doing a clean install of Windows 7 My setup is as follows: Windows 7 64-bit Ultimate 8 GB RAM 128 GB Crucial SSD (firmware 0005) Dell Latitude E6410 Intel Wireless and Graphics Other than what I have tried above I am totally out of ideas and looking for some new ones to try.

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• Can a 32-bit RHEL4 userland work with a 64-bit kernel?

  - by James

  Is there a way to change an i386 RHEL4 machine to run an amd64 kernel, but ensure that it still builds software into same i386 binaries? On Debian this seems quite straightforward: just install an amd64 kernel (worst case, build one like this guy: http://www.debian-administration.org/users/jonesy/weblog/1) and prefix everything with "linux32". Then everything that considers uname -m will be unchanged, I just need to handle the few cases that consider uname -r. What is the Red Hat equivalent? Is the only way a full 64-bit installation on another disk and then chrooting back to the 32-bit system before anyone builds anything? (Even the best examples of that seem to be Debian-based.) Background: We make a large system that runs on (a variant of) i386 RHEL4. However, some of the larger RHEL build machines now have enough RAM that they might benefit from going 64-bit (for the kernel and maybe some of the bigger build steps). Our build system doesn't support cross-compilation.

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• Is it possible to save the product key of Windows 8?

  - by Dibya Ranjan

  I have Windows 8 activated in my system. I don't have the product key of windows right now. Now I want to format my system again. Is there any way so that I can reuse the key? Is there any way I can get the key from an activated windows machine? Edit: I am not able to find the product key because I have used a MAK as my product key. Now I want the same to use it after formatting my disk. I found a software Volume Activation Manager tool on the windows website. I am not sure how to use it. Please tell me how can I reuse my key?

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• Easiest way to move my Windows installation to an SSD?

  - by Jon Artus

  I've taken the plunge and bought an SSD and want to move my existing Windows installation over. The current hard disk is 500Gb, but I've trimmed the contents down to about ~40Gb. I'm transferring it across to a 100Gb SSD and looking for the easiest way just to copy everything across and set the SSD up as a boot device. I've looked at a few tools like Macrium Reflect, but they don't seem able to restore to a smaller drive. Do I need to go for something like PING to do this? I'm trying to avoid scary Linux-based boot utilities if possible, does anyone know of an easier way?

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• graph performance monitor windows and linux

  - by Patrik

  We are using Munin to get graphs of our servers. (such as CPU load, I/O, available disk space, etc. ) Munin gives us last 24h, last 7 days, last month and last year. The good thing with Munin is that it supports all kinds of clients, such as Windows, Linux and switches because it can monitor over SNMP. However, we have a problem with the Munin client for Windows. Since we upgraded to Windows Server 2008 R2 it won't show graphs for some performance counters. What options are there out there? Both free and commercial.

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