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• Optimal Configuration for five 300 GB 15K SAS Drives

  - by Bob

  I recently acquired an HP Z800 workstation that has five 300 GB 15K SAS Drives. This system will be dedicated to running multiple virtual machines under VMware Workstation (Note: I'm not using ESXi because I do plan to use the system for other purposes.). For the host OS, I plan to install RHEL 5. My number one concern is guest performance. For example, should I create a RAID 10 array for the OS and virtual machine storage with four of the drives and reserve the 5th? Or, is there a solution that will provide better performance?

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• RGB to DVI adapter not working for Projector-to-PC

  - by user897052

  We have a wall-mounted projector (dell 4320) with VGA In and the other end of the cable is RGB. We have an RGB to DVI-I adapter (w/ DIP switches) inorder to plug the cable into a PC (video card has 1 VGA and 1 DVI-I port). We had no problems until recently, when the PCs hard drive crashed. After re-imaging the PC, the computer no longer "sees" the projector (the computer doesn't detect the projector as a second monitor anymore). The PC is an older Dell with an after-market video card and runs win XP. I also tried it on a new HP box (win 7), but had to add a DVI-I to DVI-D adapter. Any ideas?

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• Optimal Configuration for five 300 GB 15K SAS Drives

  - by Bob

  I recently acquired an HP Z800 workstation that has five 300 GB 15K SAS Drives. This system will be dedicated to running multiple virtual machines under VMware Workstation (Note: I'm not using ESXi because I do plan to use the system for other purposes.). For the host OS, I plan to install RHEL 5. My number one concern is guest performance. For example, should I create a RAID 10 array for the OS and virtual machine storage with four of the drives and reserve the 5th? Or, is there a solution that will provide better performance?

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• How to dispose of old rack-mount servers?

  - by Nic

  I have two old rack-mount servers lying around that I want to get rid of. One is a HP DL380 G2, the other is an IBM from the same era. Both machines boot up, but I don't have any harddrives for them, or any use for them. Worse yet, both machines appear to have been dropped at some point and the rail kits are bent out of shape and can't be removed, making them unusuable in a rack environment. I'd like to recycle them or dispose of them in some kind of safe manner, but don't really know what my options are. I'm in western Canada. Any suggestions? Update: If you found this question interesting, please consider visiting StackExchange Area 51 to support the proposal for a dedicated Recycling Q&A site.

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• Cannot enter BIOS due to broken screen

  - by gamer

  Lately my laptop(hp g42 247sb) screen is damaged, so I hook it up with a external monitor(LG something) and it works fine now. But the only annoying thing is I cannot navigate the BIOS menu for some tweaking because the BIOS not shown on the external monitor,instead, it only shown on the broken laptop screen, and it only output to my external monitor when windwos/os is loged-on. So, is there anyway I can force output during BIOS/BOOT/POST to my external monitor? Things I have done and didn't work: (1)Set my LG monitor as primary display on both window properties and Intel Graphics panel (2)Enter the bios (F10 key) and press the fn+F4 key(change display output). (3)Disable and uninstall my internal screen(broken laptop screen) using device manager and restart, but windows(bios?) install it back on log-on. Please help me!

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• perfmon reporting higher IOPs than possible?

  - by BlueToast

  We created a monitoring report for IOPs on performance counters using Disk reads/sec and Disk writes/sec on four servers (physical boxes, no virtualization) that have 4x 15k 146GB SAS drives in RAID10 per server, set to check and record data every 1 second, and logged for 24 hours before stopping reports. These are the results we got: Server1 Maximum disk reads/sec: 4249.437 Maximum disk writes/sec: 4178.946 Server2 Maximum disk reads/sec: 2550.140 Maximum disk writes/sec: 5177.821 Server3 Maximum disk reads/sec: 1903.300 Maximum disk writes/sec: 5299.036 Server4 Maximum disk reads/sec: 8453.572 Maximum disk writes/sec: 11584.653 The average disk reads and writes per second were generally low. I.e. for one particular server it was like average 33 writes/sec, but when monitoring in real-time it would often spike up to several hundreds and also sometimes into the thousands. Could someone explain to me why these numbers are significantly higher than theoretical calculations assuming each drive can do 180 IOPs? Additional details (RAID card): HP Smart Array P410i, Total cache size of 1GB, Write cache is disabled, Array accelerator cache ratio is 25% read and 75% write

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• High fan speed after return from suspend (on Ubuntu)

  - by Bolo

  Hi, I've got a HP ProBook 5310m laptop with Ubuntu 10.04 (32 bit). When I return from suspend, the fan speed is usually very high: FDTZ sensor reports "90 °C". Yes, the units are wrong, since FDTZ does not report temperature, but fan speed – that's probably just a small bug in reporting. Interestingly, when I plug or unplug the power cable for a moment, the fan speed returns back to normal. My questions: Where can I report this problem? Is it about ACPI support in the kernel? What is the address of the relevant bug tracker? As a workaround for now, how can I programmatically trigger a behavior equivalent to (un)plugging the power cable. More generally, how can I force ACPI to recalculate fan speed? Ideally, I'm looking for something like echo foo > /proc/bar. Thanks in advance!

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• What's required to enable communication between two IP ranges located behind one switch?

  - by Eric3

  Within our co-located networking closet, we have control over two ranges of 254 addresses, e.g. 64.123.45.0/24 and 65.234.56.0/24. The problem is, if a host has only one IP address, or a block of addresses in only one range, it can't contact any of the addresses in the other subnet. All of our hosts use our hosting provider's respective gateway, e.g. 64.123.45.1 or 65.234.56.1 A host on the 64.123.45.0/24 range can contact the 65.234.56.1 gateway and vice-versa Everything in our closet is connected to an HP ProCurve 2810 (a Layer 2-only switch), which connects through a Juniper NetScreen-25 firewall to the outside world What can I do to enable communication between the two ranges? Is there some settings I can change, or do I need better networking equipment?

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• Compaq Q2009 monitor display Issues

  - by jasonco

  I have this compaq q2009 monitor 20' inches and I am having display issues. When I turn on the computer the image is displayed fine for a fraction of a second and then the display goes black. If I turn off the monitor and turn it on again the the same thing happens: the image is displayed for a fraction of a second and then goes black. This is odd. I've looked all over the web and I haven't found anything useful (not even in the HP website). So there is no "out of range" or "recommended resolution" message. It just displays and then goes black. I think the resolution is fine because it was working OK until recently and I haven't changed anything in that regard. Any help would be appreciated. Thanks.

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• Media center consumes all available memory when attempting to play music off of a server

  - by RCIX

  I have Windows 7 Ultimate, and recently, when i try to play a song off of my Twonky Media Server/Windows Media Connect (based on an HP WHS with an Atom), it plays choppily. When i open Resource Monitor, it shows that after ordering the music to play, memory usage rapidly spikes to consume most, if not all, of the available memory on my system (excluding a couple hundred megabytes in standby). Why does it do this and is there anything i can do to stop it? Edit: it happens when I attempt to browse the server's music, not just when i play music. Edit 2: the "ehshell" process is what consumes the memory, appears to me something specific to media center. Moreover, the ehshell process doesn't die in this case. Edit 3: It only happens when browsing my Twonky library, and not my Windows Media Connect.

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• Modifying the initrd.img to run additional binaries in a PXE booted RHEL 6

  - by Charles Long

  I am trying to add additional automation to our existing RHEL 6 (or Oralce's implementation thereof) PXE install process by running a script in the %pre section of my kickstart config that call hpacucli, HP's raid device configuration binary. My approach has been to modify the PXE served initrd.img. I've unpacked the initrd.img and copied in the required libraries, binaries, and scripts but when the system boots using the modified initrd.img, the modified /lib (and /lib_64) are moved aside to /lib_old and /lib is linked to the /mnt/runtime/lib. How can I change this configuration so that the /lib is not moved (unlikely) or required libraries are available in the runtime /mnt/runtime/lib? To test and confirm this I've been able to get the install process to move to the 6th virtual console, which allows me to see errors, and then open a shell (a useful debugging mechanism). %pre exec /dev/tty6 2 /dev/tty6 chvt 6 /bin/sh

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• CA ArcServe r11.1 - have to switch Tape Drive Offline then Online to finish backup

  - by Richard

  Ill keep it brief, I have an HP Ultrium 1 in a server currently running CA ArcServe r11.1. I have 5 daily backup tapes, each of which are new. 3 of the 5 work fine without intervention but 2 of them stop at varying points through the backup asking for a new tape, even though that tape is not full. The way I have found around this is to switch the tape drive offline for 10 minutes then switch it back online, whilst the backup is still running. Has anyone ever seen this before? If so, any ideas how to permanently fix this. If all else fails just some pointers in the right direction. Thanks

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• PostgreSQL RAID configuration

  - by Yoldar-Zi

  I'm stuck how best to configure disk array. We have Hp P2000 G3 disk array with 24 SAS physical disks 300Gb each. We need to configure this array got 2 copies of PostgreSQL 9.2 because two different system. As we know it's recommended to store database and transaction logs(pg_xlog) files on separate disks. So we must setup 4 logical disk: 2 for transaction logs with RAID 1 2 for database with RAID 10 Is this right scheme of distribution? Or may be it is best to just make one big RAID 10 with 4 logical disks?

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• Problem booting hard drive after installing Centos from USB Stick

  - by Rick

  Here is the situation, I created a Centos Live 5.4 Bootable USB drive. I used this to install Centos on a HP Netbook. BTW: the Netbook doesn't have a CDRom so I used the usb key. When the system goes to write the Grub boot loader to disk, it wants to write the boot loader to the usb drive (/dev/sda), not the hard disk (/dev/hda). I do have the option of writing the boot loader to /dev/hda, (not to the mbr!) but when I reboot I get an load error and the Grub prompt. How can I get Centos booting from the hard disk instead of using the USB key. Thanks.

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• Why PowerConnect and Juniper are so rare ? Why do enterprises stick with Cisco ?

  - by Kedare

  Hello ! I have a little question, I'm actually studing in IT in France, and when looking on alternative on the very [...] very expensive Cisco equipment, I've found Juniper and DELL PowerConnect pretty attractive on features and price, but I rarely see something else than the classics Cisco/LinkSys, HP Procurve and Netgear.. Why it's so rare to find those switch ? They looks really great but... I've never seen any Juniper or Powerconnect... Why do enterprises stick with the expensive Cisco ? I've tried to find how to buy both, it's quite easy with PowerConnect, everything is on the DELL website, but it looks it's very hard to find Juniper equipment in France :( Thank you !

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• Looking for Kiosk-style / camera store easy photo memory card to CD/DVD burning program for Windows-7 Notebook? For non techie user.

  - by Rob

  I'm looking for a Kiosk-style / camera shop easy photo memory card to CD/DVD burning program? For non technie user. The kind of system you see in a camera shop / store, e.g. in the UK, Jessops and Boots stores. This is for my Dad who is adept at general PC usage as a notebook owner, but would prefer something fairly simple. The task of burning photos to CD/DVD, in their original photo file .jpg form, i.e. NOT as CD or DVD video or slideshow, is what I'm looking for. I'm guessing this might be possible in Picasa, but all the options available might be superfluous and confusing. He could probably learn to use that but thought I would try simpler options first. Looking for something that guides the user through the steps/stages of the process, 'Wizard' style. Any suggestions? Platform: HP Windows 7 Home notebook with CD/DVD burner and SD memory card slot.

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• linux recommendations for older pc

  - by jdamae

  Hi, I'm new to Linux and I am interested in installing the OS on an older computer I have. I want to setup a webserver and install php, perl. My pc is an older HP Pavillion a255c, Intel Pentium 4 with 512ram. I will probably add some more memory later. This pc is more like a sandbox than anything, but would like to get quickly started with the OS. Is there a particular flavor of linux I would need to download based on my older computer? Any recommendations? I was thinking about Ubuntu but not sure what version to go with. Thanks for your help.

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• Need to Extend Volume

  - by Roger Galindo

  Ok Here is where I am... I have an HP Proliant with 8 Drives configured as RAID5, and C:\Drive Disk 0 and D:\ drive Disk 1. I need to add more space to Disk 0 (C:) and have 150GB available on Disk 1 (D:). I tested the Disk Mgmt on D:\ and freed up 4GB which now shows to be Unallocated. How do I add the 4GB of Unallocated to the c:\? When I click on C:\ the Menu shows "Extend Volume" as Grayed Out not Black but the D:\ Drive shows Extend Volume as selectable/black.

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• FreeDOS reinstallation -- accidental script change

  - by jerry2144

  I'm extremely new to FreeDOS and I got a new HP desktop computer with the FreeDOS operating system. I messed up and accidentally changed its scripts and messed around with it's boot order. Long story short, I'm getting a disk error when I boot up. I believe I need to just reinstall FreeDOS and all should be good, but I want to get someone's opinion with much more experience than my own. Also, if someone could guide me through the installation process using a DVD installer that would be amazing. I have already downloaded the FreeDOS iso image and unzipped it. I don't know what I need to do now though. Should I even have unzipped it?

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• What disk setup is needed / best practice for hypervisor-only servers?

  - by Luke404

  Planning to buy some servers to run an hypervisor (Citrix XenServer or VMware vSphere, still have to decide between the two) we'd like to boot off the local redundant SD card module offered by various vendors (eg. Dell, HP, etc...). The actual VMs will run from an existing iSCSI SAN (which, by the way, can't support booting the servers directly off the SAN). What are the reasons, if any, to choose completely diskless servers VS having some local storage? And what would be the guidelines to choose that local storage? (number of spindles, raid level, etc)

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• Why can't my networks reach each other?

  - by HOLOGRAPHICpizza

  We have two Buffalo WZR-HP-G300NH2 routers, with the default firmware, DD-WRT v24SP2-MULTI (10/31/11) std - build 17798. Each has a separate cable internet connection with a public static IP address. They are both in the 24.123.68.0/24 space. Both of them can contact pretty much the whole internet, and they can both be accessed out on the internet with no problem, but for some reason they can't talk to each other! When I try to ping one from the other I always get "Destination Host Unreachable". There are no strange routing or firewall rules in place. And they are both set to respond to pings, I can ping them from outside. Our main IT guy is going to call our ISP on Monday, but I'm impatient, so does anyone have any ideas?

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• Laptop Locking Up

  - by David

  I am having a very weird issue on a Lenovo W510 laptop. It will lock up randomly. I have had it lock up during post, during the boot-up of Linux, during login, and after the login. The following are tests that I have performed on the laptop. I ran memtest I took out the extra memory module. I swapped the HDD with another HDD that had Windows 7 on it. (It BSOD'd, and before anyone could possibly read the error line, it restarts.) I tried taking the battery out and booting with only the Power cord. The only other options I can think of the problem being are the motherboard or the PSU. If anyone has any advice, I appreciate it. If not, the HP guy will be here in a few days to fix it. I would just love to call them up and tell them that the service is no longer needed.

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• RAID--0 " TWO " DRIVES SSD ONLY Should I use on-board / Software RAID OR a RAID Card / Control

  - by Wes

  I am looking at going with a TWO Drive Only SSD RAID-0 Configuration And was wondering if I would get better performance / Speed from the Use of a RAID Controller / Card Verses just using the Software RAID on my Mother Board. I have herd conflicting reports , Again I only Plan on Running " 2 " SSD Drives in RAID-0 Config I have No- problem spending the extra money for a good controller but only if I am going to benifit performance wise , Otherwise if there is no notable Gain I will just use the Software RAID that my HP-180-T came with Intel- 3.33 GHZ , 6-Core , 12-GB of DDR-3. I have a huge External drive for All Storage and am not concerned about Data loss just looking for pure speed. And if a Controller will benifit my performance Wht type of card would one suggest?

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• No Games Installed with Windows 7 Professional

  - by Charles Didier

  Ordered a PC from HP with Windows 7 Professional 64-bit preinstalled, of course. No Win7 disc was included with computer. There are no games installed. I have tried to "activate" them through the Control Panel procedure, but each time I do it there is an error message telling me that not all components installed. And my Games folder is empty. Is there a solution? Synetech asked what I meant by "activate through Control Panel." I'm referring to the "Turn windows features on" procedure that's supposed to work for everybody. I'm sure it does for most, but it didn't for me.

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• Using Powershell's Invoke-command to install .exe on remote computer

  - by Bernie

  I have an .exe I would like to install on a large farm of Windows Server 2008 computers. I am attempting to use Powershell remoting. I have this command which works locally: invoke-command {& "N:\Temp\fortify_installer\HP-Fortify-3.20-Analyzers_and_Apps-Windows-x86.exe /s /f1N:\Temp\fortify_installer\response.iss"} But when I add the -computername flag it seems to go off to nowhere, and the installer is never run on the remote machine. I can launch notepad.exe via the same command and it runs. Does it have something to do with it being an installer, or something else? I realize many versions of this question have been asked and I have read them, but I am still confused as to why this doesn't work.

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