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  • Add a small RAID card? Will it help overall stability and performance of my nine hard drives?

    - by Ray
    Hi, Will I get any extra genuine added performance and RAID stability if I insert a basic RAID card into a PCI-E x1 slot? I am considering the Adaptec 1220SA - 2 port SATA , pci-express (1x) , raid 0/1. Ok it only supports two SATA drives. Purpose is to help support the eight internal hard drives (1TB each), a DVD drive and an external e-SATA connected 2TB hard drive - by dealing with two of the internal hard drives. My current configuration of eight internal 1TB Barracuda (7200.12) SATA hard drives, one external 2TB SATA Western Digital Green Drive (e-SATA) and one DVD drive can already be supported by the Intel P55 & JMicron controllers on the ASUS motherboard : the Intel P55 (controls six HDD; configured as three x RAID 1), and the JMicron (controls two HDD as one RAID 1, as well as the DVD drive and the external SATA drive via the motherboard's e-SATA port (controlled by the JMicron)). Bigger picture details : I have an ASUS motherboard designed for the LGA1156 type processor and it includes the Intel P55 Express Chipset and JMicron. I am using the Intel Core i7-870 processor, and have 8GB DDR3 (1333) memory (four x 2GB Corsair DIMMs). Enough overall power. The power supply is more than sufficicient for the system. Corsair AX850. The system will never need the full 850 watts (future : second graphics card). The RAID card would provide hardware RAID 1 for two of the eight intrnal drives. It would either reduce the load on : the Intel P55 firmware RAID support, or replace the JMicron controller's RAID 1 set. I am busy installing the above configuration using Windows 7 Ultimate 64-bit as the OS. The RAID card is a last minute addition to the plan. Is it worth spending the extra R700 - R900 on the Adaptec 1220SA, or equivalent RAID card? I cannot afford to spend yet another R2000 - R3000 on a RAID card that would support many SATA2 hard drives, with a better RAID, example the RAID 5. My Issue & assumption : I am trusting that the Intel P55 chipset can properly handle six drives, configured as three * RAID 1. I am assuming that the JMicron can handle, using its RED SATA ports, one RAID-1 (two HDDs). The DVD drive connects to the JMicron optical SATA port 1 (white port 1). White port 2 is not used. The e-SATA connection is from the JMicron straight to, and through the motherboard - to an on-board (rear panel) e-SATA port. Am I being a little hopeful in only using the on-board Intel P55 and the JMicron? Is it a waste of money to install a RAID card that handles two SATA2 drives? OR Is it wisdom to take the pressure a little off the Intel P55? Obviously I am interested in data security, hence RAID 1, not RAID Zero. RAID 5 would be nice. The CPU, Intel Core i7-870 will provide the clout. Context to nine drives : I am using virtualisation with Windows 7 Ultimate. Bootable VMs. The operating system gets a mirror. Loaded apps gets a mirror. The current design data is kept in another mirror and Another mirror is back-up one and / or VM territory. Then the external 2TB drive (via e-SATA) is the next layer of data security and then finally, I use off-site data security. Thanks.

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  • choosing the right RAID level

    - by student
    Recently, we bought a "HP-DL380 G6 Server" with 6 146GB (SCSI)HDD for our colleague course management application and website with 10000 daily visitors. we want to choose the best RAID level. how can we choose the right RAID level ? what is the best RAID level for our application ?

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  • choosing the right RAID level

    - by student
    Recently, we bought a "HP-DL380 G6 Server" with 6 146GB (SCSI)HDD for our colleague course management application and website with 10000 daily visitors. we want to choose the best RAID level. how can we choose the right RAID level ? what is the best RAID level for our application ?

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  • Is possible to boot on PXE over a WiFi device?

    - by Diogo Rocha
    As I know it is possible to boot up some bootable images (like Linux, Clonezilla, management applications and others) over a PXE (Preboot Execution Environment) server with an Ethernet device (802.3). Can the same thing be done with an Ethernet WiFi (802.11) device? I tested with my notebook but my BIOS appears to not enable booting from WiFi devices. Is it possible with some specific WiFi cards and/or a specific BIOS?

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  • Unable to connect host from guest VPC.

    - by Kabeer
    Hello. My host is WinXP and my guest (on VPC 2007) is also WinXP. Both have SP2. I am unable to ping either from one another. However, I am able to connect to the Internet from the guest. My intention is to be able to connect the SQL Server on the host from the Management Studio installed on the guest. Right now I am using Shared Networking (NAT) on the guest's settings.

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  • sql server textbook

    - by Nick P
    I am a student that is about to take an independent study class on SQL Server management. I would like some suggestions for textbooks that could guide me. I will be expected to install and configure SQL server 2008 in a Windows Server 2008 environment and provide tools(scripts) to administer a database for future students. I've reviewed the Murach book, and it doesn't seem to go into enough depth.

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  • Centos 5.5 [Read-only file system] issue after rebooting

    - by canu johann
    I have a virtual server under centos 5.5 (hosted by a japanese company called sakura ) Since yesterday, connection through ssh couldn't be established. I've contacted support center who told me to restart VS from the control panel. After restarting, I got the message below Connected to domain wwwxxxxxx.sakura.ne.jp Escape character is ^] [ OK ] Setting hostname localhost.localdomain: [ OK ] Setting up Logical Volume Management: No volume groups found [ OK ] Checking filesystems Checking all file systems. [/sbin/fsck.ext4 (1) -- /] fsck.ext4 -a /dev/vda3 / contains a file system with errors, check forced. /: Inodes that were part of a corrupted orphan linked list found. /: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY. (i.e., without -a or -p options) @@cat: /proc/self/attr/current: Invalid argument Welcome to CentOS Starting udev: @[ OK ] Setting hostname localhost.localdomain: [ OK ] Setting up Logical Volume Management: No volume groups found [ OK ] Checking filesystems Checking all file systems. [/sbin/fsck.ext4 (1) -- /] fsck.ext4 -a /dev/vda3 / contains a file system with errors, check forced. /: Inodes that were part of a corrupted orphan linked list found. /: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY. (i.e., without -a or -p options) [FAILED] *** An error occurred during the file system check. *** Dropping you to a shell; the system will reboot *** when you leave the shell. *** Warning -- SELinux is active *** Disabling security enforcement for system recovery. *** Run 'setenforce 1' to reenable. /etc/rc.d/rc.sysinit: line 53: /selinux/enforce: Read-only file system Give root password for maintenance (or type Control-D to continue): bash: cannot set terminal process group (-1): Inappropriate ioctl for device bash: no job control in this shell bash: cannot create temp file for here-document: Read-only file system bash: cannot create temp file for here-document: Read-only file system bash: cannot create temp file for here-document: Read-only file system bash: cannot create temp file for here-document: Read-only file system bash: cannot create temp file for here-document: Read-only file system bash: cannot create temp file for here-document: Read-only file system bash: cannot create temp file for here-document: Read-only file system bash: cannot create temp file for here-document: Read-only file system bash: cannot create temp file for here-document: Read-only file system bash: cannot create temp file for here-document: Read-only file system (Repair filesystem) 1 # setenforce 1 setenforce: SELinux is disabled (Repair filesystem) 2 # echo 1 (Repair filesystem) 4 # /etc/init.d/sshd status openssh-daemon is stopped (Repair filesystem) 5 # /etc/init.d/sshd start Starting sshd: NET: Registered protocol family 10 lo: Disabled Privacy Extensions touch: cannot touch `/var/lock/subsys/sshd': Read-only file system (Repair filesystem) 6 # sudo /etc/init.d/sshd start sudo: sorry, you must have a tty to run sudo (Repair filesystem) 7 # I have 4 site in production and I need to restart the server quickly (SSH + HTTPD ,...). Thank you for your time.

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  • Sync Android with iTunes

    - by John Oxley
    I have just bought a shiny new HTC Hero. Is there any way to get it to sync with iTunes. In particular I'm looking at Podcast management. Same question targeted at the Zune http://superuser.com/questions/47136/sync-android-with-zune Update I am running windows, but I feel that Mac users would appreciate this too.

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  • XFS disk becomes unavailable after a while

    - by Guard
    Ubuntu 12.04 (but the same was on 11.10 before upgrading) WD MyBook, 2TB, no RAID (or RAID0, not completely sure, anyway no mirroring, both 1TB disks are in use, mounted as a single device). Formatted to XFS, normally used for big movie files. Connected to Firewire 800. At some point the LED started going up and down as when constantly reading/writing. The device gives access error. When unplugged (cable, then holding the power button for a while, then unplugging the power) and re-connected becomes available. xfs_check with no results. xfs_repair did something, but looks like didn't fix any error. Then after a massive read (checking 1.5GB torrent file for integrity) becomes unavailable again. Any ideas what's wrong? Drives? Cables? Motherboard? OS? UPD: not sure how relevant this is, but here are dmesg output [14380.632816] SGI XFS with ACLs, security attributes, realtime, large block/inode numbers, no debug enabled [14380.633356] SGI XFS Quota Management subsystem [14421.812220] firewire_core: phy config: card 0, new root=ffc1, gap_count=5 [14441.890596] firewire_core: phy config: card 0, new root=ffc1, gap_count=5 [14441.896858] firewire_core: phy config: card 0, new root=ffc1, gap_count=5 [14453.895347] firewire_core: created device fw1: GUID 0090a99500a35518, S400, 9 config ROM retries [14453.904818] scsi6 : SBP-2 IEEE-1394 [14453.905014] scsi7 : SBP-2 IEEE-1394 [14454.139993] firewire_sbp2: fw1.0: logged in to LUN 0000 (0 retries) [14454.158769] scsi 6:0:0:0: Direct-Access WD My Book 1015 PQ: 0 ANSI: 4 [14454.159251] sd 6:0:0:0: Attached scsi generic sg3 type 0 [14454.162391] firewire_sbp2: fw1.1: logged in to LUN 0001 (0 retries) [14454.167453] sd 6:0:0:0: [sdc] 3907017568 512-byte logical blocks: (2.00 TB/1.81 TiB) [14454.178822] sd 6:0:0:0: [sdc] Write Protect is off [14454.178826] sd 6:0:0:0: [sdc] Mode Sense: 10 00 00 00 [14454.186830] scsi 7:0:0:1: Enclosure WD My Book Device 1015 PQ: 0 ANSI: 4 [14454.186995] scsi 7:0:0:1: Attached scsi generic sg4 type 13 [14454.190078] sd 6:0:0:0: [sdc] Cache data unavailable [14454.190087] sd 6:0:0:0: [sdc] Assuming drive cache: write through [14454.202176] sd 6:0:0:0: [sdc] Cache data unavailable [14454.202185] sd 6:0:0:0: [sdc] Assuming drive cache: write through [14454.239940] sdc: [mac] sdc1 sdc2 sdc3 sdc4 [14454.271262] sd 6:0:0:0: [sdc] Cache data unavailable [14454.271270] sd 6:0:0:0: [sdc] Assuming drive cache: write through [14454.271354] sd 6:0:0:0: [sdc] Attached SCSI disk [14454.272149] ses 7:0:0:1: Attached Enclosure device [14606.090024] XFS (sdc3): Mounting Filesystem [14612.048343] XFS (sdc3): Starting recovery (logdev: internal) [14620.697636] XFS (sdc3): Ending recovery (logdev: internal) [14748.120957] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx [14748.120963] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO [14752.568382] uhci_hcd 0000:00:1a.0: PCI INT A disabled [14752.568579] uhci_hcd 0000:00:1a.1: PCI INT B disabled [14752.568738] ehci_hcd 0000:00:1a.7: PCI INT C disabled [14752.568779] ehci_hcd 0000:00:1a.7: PME# enabled [14752.584526] uhci_hcd 0000:00:1d.1: PCI INT B disabled [14752.584689] uhci_hcd 0000:00:1d.2: PCI INT C disabled [14752.680079] ehci_hcd 0000:00:1a.7: BAR 0: set to [mem 0xe4641000-0xe46413ff] (PCI address [0xe4641000-0xe46413ff]) [14752.680104] ehci_hcd 0000:00:1a.7: restoring config space at offset 0xf (was 0x300, writing 0x30b) [14752.680136] ehci_hcd 0000:00:1a.7: restoring config space at offset 0x1 (was 0x2900000, writing 0x2900002) [14752.680170] ehci_hcd 0000:00:1a.7: PME# disabled [14752.680182] ehci_hcd 0000:00:1a.7: PCI INT C -> GSI 18 (level, low) -> IRQ 18 [14752.680190] ehci_hcd 0000:00:1a.7: setting latency timer to 64 [14752.710334] uhci_hcd 0000:00:1a.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 [14752.710342] uhci_hcd 0000:00:1a.0: setting latency timer to 64 [14752.749186] uhci_hcd 0000:00:1a.1: PCI INT B -> GSI 17 (level, low) -> IRQ 17 [14752.749194] uhci_hcd 0000:00:1a.1: setting latency timer to 64 [14752.790231] uhci_hcd 0000:00:1d.1: PCI INT B -> GSI 22 (level, low) -> IRQ 22 [14752.790239] uhci_hcd 0000:00:1d.1: setting latency timer to 64 [14752.829170] uhci_hcd 0000:00:1d.2: PCI INT C -> GSI 18 (level, low) -> IRQ 18 [14752.829178] uhci_hcd 0000:00:1d.2: setting latency timer to 64

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  • SMTP server setup on windows xp, IIS

    - by .mahesh
    I have my domain registered with godaddy. I want to send newsletter to my customers (around 5000). But there is limit to send number of emails per day. Can i setup SMTP server on my home PC (windows XP) for sending these mails. Is there any "open source"/Free newsletter management application (build on ASP.NET, so that i can customize it if needed) which track bounce emails and other analytics. Any issue which i have to take care.

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  • How do I boot to the Recovery Partition on an eMachines D620 notebook?

    - by GraemeF
    I installed the Windows 7 RC on my wife's laptop and now need to reinstall Vista for her. I was very careful to leave the recovery partition intact so that I could do this, but I don't see a way to boot to it. In the Disk Management console I can see the "9.77GB Healthy (Recovery Partition)" partition but I can't do anything with it - the context menu only contains the Help option. Any ideas?

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  • How to rectify FDQN error in mirroring?

    - by krishna chaitanya
    While establishing mirroring without witness at last step i am getting an error: One or more of the server network addresses lacks a fully qualified domain name (FDQN). To start mirroring without using a FQDN, click "yes". To specify the FDQN, click "no". Then specify every TCP address by using the syntax for a fully qualified TCP address, and click Start mirroring again. TCP/IP are in enabled mode in Computer management. How to rectifity this error?

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  • Turn off additional cpu cores while on battery

    - by Chris McGrath
    I'm currently an running a quad core processor on windows 7 and was wondering if there is a way to turn off unneeded cpu cores while I'm running on battery to extend battery life it would be nice to do this automatically but will also accept way to it manually if there is no way to do it automatically either in windows or through management software I've searched on the internet and haven't been able to find anything to this effect on google

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  • Terminal server for Linux

    - by Hubert Kario
    What are the features of graphical terminal servers and technologies available for Linux? is it open source/free how well does it scale management (?) what's the network usage, susceptibility to latency support for session pause/resume what client platforms does it support support for sound (playback and record) directory/local disk sharing local printing other cons/pros This question is supposed to be a community wiki for comparison between the different technologies, but it looks like I don't have enough points to make questions into wikis(?)

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  • Suggested managed DNS provider?

    - by Arelius
    We own/manage a few domains (nothing too large or too trafficked). Currently our DNS servers are hosted onsite. For ease of management and lower-latency DNS requests we are interested in moving our Domains offsite, does anyone have recommendations for a good DNS provider?

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  • recommendation for good chassis (case) for first time PC builder

    - by studiohack
    I've been thinking about building my own machine for some time now, and whenever I look at the PC case market, it seems like cases are a dime-a-dozen. As a result, I'm wondering what cases Super Users would recommend in the areas of ease of use, cable management, cooling, etc...in other words, an all-around case for a first time PC builder. Thanks!

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  • SQL Server 2000 Client won't connect

    - by alimack
    One day instead of connecting to the database my SQL Server Management gave me the following error: "Data Source name not found & no default driver found" Note it had been working for several years before this, all that had changed was an upgrade to Office (97 -2000) and the monthly Windows patches. I tried rebooting, re-installing both the SQL Server 2000 and 2005 clients on the machine but no joy. I can access the database(s) from other machines.

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  • FAT32: setting a mixed-case volume label on Windows?

    - by BoltClock
    When I try to set the volume label for my FAT32 USB drive the normal way (using Windows Explorer or Disk Management), the filesystem just makes the label uppercase when applying it. Is it possible at all to set a mixed-case volume label on the drive on Windows? I know there may be no real reason for me to do that, but I'd really like to know.

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  • Configuration Manager sub site codes

    - by NA Slacker
    I have two sub-sites set up in configuration manager. When the SCCM agent installs on the client machines within the boundaries of those sub sites they are assigned the site code of the Primary site, not the sub site code. As a result their management server remains the main server not the sub site server. I am setting up thes sub sites on cross WAN locations to cut down on traffic. What could be preventing the clients from getting associated with the proper sub site code.

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  • Extend partition windows powershell

    - by user128364
    I want to create a Windows Powershell script to extend my partition through WMI (remotely), IP Address of my host id 10.10.10.10 $pass = convertto-securestring "abc123#" -asplaintext -force $mycred = new-object -typename System.Management.Automation.PSCredential -argumentlist "10.10.10.10\Administrator",$pass Invoke-Command -ComputerName 10.10.10.10 -Credential $myCred -ScriptBlock {"rescan","select volume 2","extend" | diskpart} Do we have any method with use of Invoke-Wmimethod

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  • Address book software that knows people share addresses

    - by Benjol
    I'm a bit frustrated with Outlook and Google contacts, as neither understand that people share addresses, or that one address can represent several people. So you either have crappy custom fields like "Bill's mobile", "Jane's mobile", or you have a Bill and a Jane contact, and you have to keep the address updated between the two. Are the any decent, and simple, address book applications out there which have this kind of intelligence? Note: this is for home use, I don't need to do professional 'contact management'.

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