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• MS SQL Server 2005 Express rebuild master DB problem

  - by PaN1C_Showt1Me

  Hi ! There has been a power loss on our server and i cannot start the SQL service because the master DB is corrupted (as the log states). I found many articles recommending running the setup.exe with optional parameters: This is what I did: I've downloaded SQLEXPR32.EXE from MS page and ran it The first problem was, that it extracted all the setup files and started the default installation procedure. (which was unuseful for me as I need those params). If I canceled it, all the extracted files disappeared. That's why I decided to copy the extracted files somewhere and than cancel the default installation. Now I'm trying to run the setup.exe from the extraction: setup.exe /qb INSTANCENAME=MSSQLSERVER REINSTALL=SQL_Engine REBUILDDATABASE=1 SAPWD=xxxxx it asks me if I want to rewrite the system db, which is what I need, but then while installing I get this error: *An installation package for the product Microsoft SQL Server 2005 Express Edition cannot be found. Try the installation again using a valid copy of the installation package 'SqlRun_SQL.msi'* Then it tries to install something and it states: cannot install because the same instance name already exists. But I don't want to install a new instance .. Any idea how to solve this, please? Thank you in advance !

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• Laptop sleep: How to go into S3 easily?

  - by monov

  Laptop: Fujitsu-Siemens Amilo Pi-3525 OS: Vista When my laptop is plugged in and I close the lid, it goes into S1 sleep. This means that there is still: fan noise (annoying when trying to sleep at night) lots of power consumed (so if I then unplug the laptop and toss it in the bag, by the time I'm at school it's already drained and beeping ominously). What I want is S3 sleep, it solves both problems. I've found a roundabout way to go into S3 sleep: Unplug laptop Close lid (or click Sleep in Start menu) Plug laptop back in if needed The question: How do I force Windows to use always use S3 sleep when I close the lid? One thing I've tried is: dumppo admin minsleep=s3 (dumppo from here) Afterwards running just dumppo admin confirms that minsleep has been set, but closing the lid still goes into S1. Also, after a reboot, minsleep is reset to s1. I think dumppo is incompatible with Vista... MCE Standby Tool was recommended as a Vista-compatible alternative to dumppo, but it doesn't have any effect either. I looked in the BIOS settings, but there are no settings relating to ACPI sleeps/suspends there.

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• PostgreSQL lots of large Arrays and Writes

  - by strife911

  Hi, I am running a python program that spawns 8 threads and as each thread launch its own postmaster process via psycopg2. This is to maximize the use of my CPU-cores (8). Each thread call a series of SQL Functions. Most of these functions go through many thousands of rows each associated to a large FLOAT8[] Array (250-300) values by using unnest() and multiplying each FLOAT8 by an another FLOAT8 associated to each row. This Array approach minimized the size of the Indexes and the Tables. The Function ends with an Insert into another Table of a row of the same form (pk INT4, array FLOAT8[]). Some SQL Functions called by python will Update a row of these kind of Tables (with large Arrays). Now I currently have configured PostgreSQL to use most of the memory for cache (effective_cache_size of 57 GB I think) and only a small amount of it for shared memory (1GB I think). First, I was wondering what the difference between Cache and Shared memory was in regards to PostgreSQL (and my application). What I have noticed is that only about 20-40% of my total CPU processing power is used during the most Read intensive parts of the application (Select unnest(array) etc). So secondly, I was wondering what I could do to improve this so that 100% of the CPU is used. Based on my observations, it does not seem to have anything to do with python or its GIL. Thanks

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• Communicating via Command Mode with IBM HS22 IMM via AMM

  - by MikeyB

  On previous model blades that contained a BMC, I was able to communicate from our external management station via pass-through commands to the BMC to do things such as power blades on/off, set VPD parameters, reboot the BMC, etc. Now on the HS22, a bunch of things happen differently. For example, we can no longer use the same pass-through commands to write VPD information pages and have them persist across reboots of the IMM - it looks as though those VPD pages are populated from information contained in the IMM. How do we use the Advanced Settings Utility from an external host to communicate with HS22 IMMs? Alternatively, what TCP Command Mode commands do we need to send to the AMM to communicate with the IMM? For our purposes, we specifically cannot communicate with the IMM from the blade itself. Specific example: When I send a pass-thru IPMI command via the AMM to the blade BMC to write information (such as MTM, Serial) into VPD page 0x10, it persists on blades with a BMC (HS21 for example). I can send the same IPMI command to write data to the VPD page on the HS22, however it does not persist across reboots of the IMM. What IPMI commands do I need to send to the IMM? What IPMI commands are asu sending when it sets the MTM & Serial?

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• Synergy, OSX client, Windows 7 server - No mouse on client

  - by Majenko

  I have the following Synergy setup: +------------++------------++------------++------------+ | Mac || Win 7 || Ubuntu 1 || Ubuntu 2 | |c ||s ||c ||c | +------------++------------++------------++------------+ Mac: OS/X Tiger 10.4.11 (G3) Win 7: Windows 7 Ultimate x64 Ubuntu 1 & Ubuntu 2: Desktop 10.10 Now, everything works nicely between the Win7 server and the two Ubuntu machines. What doesn't work is the Mac. I am running the very latest Synergy (1.4.2, downloaded last night). As far as the Mac is concerned everything should be working fine: Synergy 1.4.2 Client on Darwin 8.11.0 Darwin Kernel Version 8.11.0: Wed Oct 10 18:26:00 PDT 2007; root:xnu-792.24.17~1/RELEASE_PPC Power Macintosh Unable to connect to pasteboard. Clipboard sharing disabled. 2011-03-22 09:32:56.725 synergyc[406] Can't register screen saver connection 'com.apple.ScreenSaverDaemon' started client connecting to '192.168.0.202': 192.168.0.202:24800 connected to server entering screen leaving screen entering screen leaving screen But it's just not interacting with the display at all (mouse doesn't move, keyboard does nothing). I have tried running ktrace on synergyc and examining the dump, and the only clue I found was that it was trying to interact with the AccessibilityAPI which was disabled at first. Enabling Accessibility has had no effect whatsoever (it has only stopped the failure to open /var/db/.AccessibilityAPIEnabled in the ktrace dump) Anyone managed to get this to work in OS/X Tiger yet? I used to run the server on OS/X and have the windows / unix machines as clients, but as my Windows is now a laptop I'd like that to be the server.

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• Replacing local home server with VPS: Suggestions?

  - by CamronBute

  So right now, I'm running an old box with a 2TB HDD in it. I use this as a file server for the home network, as well as a box for downloading large files which are synced via Dropbox. Lots of other tinkering things, too. Basically, I'm sick of paying extra for the power and having to worry about drive failures and whatnot. I'd rather get a remote server, let someone else manage it and provide access from the Internet. So, I've been looking for a Windows VPS that would give me access to install things and tinker, and I'm having a problem finding a host that offers more than 100GB of hard drive space. If they do offer a package with 100GB of storage, everything else is waaayyyy more than what I actually need. The idea is to create a permanent VPN connection from the cloud server to my home network to provide a transparent solution so I'm not having to go to lengths to transfer files or whatnot. I think a VPS solution will allow me to do this. I would like 1TB of storage space, minimum 100Mbps Internet connection, minimum 250GB bandwidth, admin access. Anyone have anything? Or am I being unreasonable? If I am, why?

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• Dell Poweredge 1950 with Perc 5i keeps losing raid config -> "Foreign Configuration Found"

  - by nosage

  The quick and dirty: the machine is a Dell Poweredge 1950, dual xeon quad cores, 8GB of ram, 2 2TB seagate SATAs in (supposed to be raid1) using a Perc 5i raid card. They are hot-swappable with a back-plane. I can build the raid fine and after a little while an install of server 08 r2 will blue screen and restart. When it comes up the raid controller says "Foreign Configuration Found." When I go into the raid configuration panel there is no raid listed but I can import the "foreign config", and the OS will boot up fine, until it blue screens again after a little while. The issue is OS independent. I have tried swapping raid cards, swapping the RAM module on the raid card and swapping the raid battery, all to no avail. Its almost as if there is a loose connection from the raid card to the back plane and both of disks get lost and the raid card drops the config. But it sees the disks fine when it boots back up. The raid card uses a SCSI SAS cable to connect to the back-plane so I guess the next step is to replace that, but... then I might as well replace the back-plane with a SCSI SAS to sata breakout cable, but... then I need a way to power the disks. Sorry for the wall of txt but it would be great to get some thoughts from people who worked with perc raid cards or poweredge servers with this type of issue before. Ironically I want to get this system up and running so I can work on MCITP labs. Thank you for any/all help and feel free to ask questions!

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• Mainboard shuts itself off after half a second or so

  - by heishe

  Here's the problem: When I start the PC, the mainboard powers up, then stays that way maybe 0.2-0.5 seconds, and then shuts off again. I say mainboard, and not PC, because I removed all the parts from the system and disconnected everything but the mainboard power supply (the broad 12 pin thingy). When I have the other parts (cpu, graphics card, ram, etc.) installed and connected, the basic behaviour stays the same, but now the mainboard runs for about 6 or 7 seconds (this is a guess) before shutting off. This all started when my monitor wouldn't receive a video signal today, without giving POSTs, so I took the graphics card and the RAM out to see if it changes anything. It didn't, except that from that point on the mainboard would start to have this behavior where it just stays on for a very short time and then shuts off again. I already tested it with a backup PSU - same behavior. What could this be? I'm thinking it can't be on a physical level (transistors burned through or something like that), since then the mainboard either shouldn't start at all or it should detect hardware failures in non-essential parts of the syste and start beeping. Sorry, I forgot to mention. It's an MSI P67A-C43. I already checked the capacitors if someone popped, but I can't find anything. I also tried resetting the cmos, but that didn't change anything.

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• does my machine configuration make sense?

  - by user1227914

  i couldn't think of a better place to ask this question, so here it goes. we're putting together a dedicated server for a website that will initially host the web server and the mysql database. as the website grows, we'll move the database to a different server and this machine will eventually only server the actual website. so the question is ...does my configuration look okay? it's the first time i'm building a server from scratch so i want to make sure i don't combine components that don't fit or something. things like ..do the drives i picked work for the hot swap ..etc. what do you guys think? am i good to go with this configuration? :) Chassis: Supermicro SuperServer 6016T-MTHF (6x DDR3 SDRAM - ECC DIMM 240-pin, 2x LGA1366 Socket, Power Provided: 600 Watt, 4 (free) x hot-swap - 3.5") CPU: Intel BX80614E5620 Xeon E5620 Processor - 4 Core, 2.40GHz, LGA 1366, 5.86GT/s QPI 12MB Cache, 64-Bit, 80W, HyperThreading Memory: Crucial CT51272BB1339 4GB PC10600 DDR3 Memory - 1333MHz, ECC, Registered, 1x4096MB (possibly 3 or 4 of them) Hard Drives: Western Digital WD2002FAEX Caviar Black Hard Drive - 2TB, 3.5", SATA 6Gbps, 7200 RPM, 64MB (possibly 2 or 3). thank you very much for any professional advice :)

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• Cooling Server Closet - No A/C Is Possible

  - by JamesCo

  We're moving into a new office in an old building in London (that's England :) and are walling off a 2m x 1.3m area where the router & telephone equipment currently terminates to use as a server closet. The closet will contain: 2 24-port switches 1 router 1 VSDL modem 1 Dell desktop 1 4-bay NAS 1 HP micro-server 1 UPS Miscellaneous minor telephony boxes. There is no central A/C in the office and there never will be. We can install ducting to the outside quite easily - it's only a couple of metres to the windows, which face a courtyard. My question is whether installing an extractor fan with ducting to the window should be sufficient for cooling? Would an intake fan and intake duct (from the window, too) be required? We don't want to leave a gap in the closet door as that'll let noise out into the office. If we don't have to put a portable A/C unit into the closet, that'd be perfect. The office has about 12 people; London is temperate, average maximum in August is 31 Celsius, 25 Celsius is more typical. The same equipment runs fine in our current office (same building as new office, also no A/C) but it isn't in an enclosed space. I can see us putting say one Dell 2950 tower server into the closet, but no more than that. So, sustained power consumption in the closet would currently be about 800w (I'm guessing); possibly in the future 2kw. The closet will have a ceiling and no windows and be well-insulated. We don't care if the equipment runs hot, so long as it runs and we don't hear it.

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• Instant connection to wireless network but delayed internet access on Mediacom with Windows 7

  - by David

  I have Mediacom cable internet and their provided modem/wireless router a Cisco DPC3825. Each of the laptops experiencing the trouble have Windows 7 64-bit. When connecting to the wireless network each computer will take a second or two to connect and then toggle from "no internet access" to "internet access" however, no websites are accessible for about five minutes after connecting. After that, there aren't any problems. It happens on all 3 of the laptops I have available and none of them have problems on any other network. It seems like my phone doesn't have the delay issue when it connects. I've power cycled the modem/router along with a DNS flush. I have some of the DNS servers manually set to Google DNS addresses and one just default. I've contacted and had Mediacom support try all its tricks. They changed the SSID and password along with resetting the thing remotely a handful of times. It was installed just this month and seemed to pass the tech's checks upon installation. Nothing in the settings has been changed, but it's been exhibiting this problem from the get go. This guy seems to be having the same problem, but no solution was posted. http://www.dslreports.com/forum/r27372861-IA-Connection-to-Mediacom-wireless-Modem-no-internet- Help greatly appreciated.

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• APC Smart UPS network shutdown issue

  - by Rob Clarke

  Here is a bit about our setup: We have 2x Smart-UPS RT 6000 XL units with network management cards We are running Powerchute from a network server Powerchute is connected to the management cards of both UPSs UPSs are set to do a graceful shutdown via Powerchute when the battery duration is under 20 minutes We also have a command file that runs with Powerchute Although our setup is redundant we do not have an equal load on each server due to APC switches for single power devices The problem is that as we do not have an equal load on each server the batteries drain at different rates. This means that the UPSs both get to the specified low battery duration at completely different times. The problem here is that UPS 1 may have run down to 5 minutes and is in desperate need of initiating a Powerchute shutdown - UPS 2 still has 25 minutes of runtime so no shutdown is initiated. Consequently UPS 1 goes down and takes all the servers with and then shuts down UPS 2 as well! What we need to happen are 1 of either 2 things: Powerchute initiates the shutdown as soon as either UPS reaches the 20 minutes low battery duration setting - and doesnt wait for both The UPS with the heavier load expends its entire battery but does not shutdown both UPSs and lets the load be switched across to the UPS that still has runtime remaining. That way when the UPS that still has runtime reaches its low battery duration it can proceed with the graceful shutdown via Powerchute. Hope that makes sense, any help is greatly appreciated!

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• Ubuntu 12.04 froze during update, won't boot

  - by Cichol

  I've recently installed Ubuntu 12.04 on my laptop, and every time i tried to update it, it would freeze for a few seconds, and tell me that the updates could not be downloaded. After many, many tries I managed to get them downloaded, but then in the middle of installing them, it froze. Completely. No mouse movement, no blinking lights, no nothing. After a few hours of letting it sit there, I finally hit the power button to do a hard reset, and now when I select Ubuntu on the boot screen (Dual-boot with Windows 7), I get a blank purple screen, and then nothing. Another freeze. I've tried getting into the console, but no command I input has any visible effect. I have a ton of music stored on the partition it's in, so I'd really rather not have to reinstall. My specs, to the best of my knowledge: Clevo Corp model B7130 (Sager custom) CPU: Intel Core i5 @ 2.53gHz (4 CPUs) Graphics Card: Nvidia GeForce 425m 4096 MB RAM Drivers: Whatever comes with the download of 12.04. As a side-note, I installed Ubuntu via the Windows Installer program (wubi). Does that make a difference?

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• Audio card with built-in ground isolator?

  - by Dave Jarvis

  What audio cards would you recommend that eliminate hum, and hard-drive & mouse movement signal interference? Hardware components: Motherboard. Asus P5Q SE Audio. Realtek ALC 1200, 8-Channel High-Definition Audio CODEC (on board) Harddrive. WD Caviar 320 GB Mouse. Logitech Marbleman USB Mixer. Mackie d.4 Pro Amplifier. Sonance Sonamp 260 All components are plugged into the same Monster Power HDP 910 powerbar (does not help eliminate noise). I have no other components plugged in. The computer uses a Monster iCable 1000 to go from mini (on board audio) to RCA (mixer). I have moved the cable as far from other cables as possible. A ground loop isolator between the mixer and on board audio eliminates all noise. I would rather not use a ground loop isolator; an internal audio card that is Linux-compatible (Kubuntu) would be ideal. Suggestions?

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• Datacenter IP Addressing and DNS Management

  - by user65248

  Hello everyone Basically we are setting up a small Datacenter, about 300 amps power and max 50 racks, Im saying these coz I wanna u imagine the size and requirements, I have studied networking mostly Microsoft and Windows based systems , but I cant get how the IP addressing and DNS management and configuration works in a Datacenter , and unfortunately I have to setup everything by myself but defe we will have some staff to do some job. Now my questions Datacenter IP Addressing Suppose we have got a block of 200 IP addresses from our ISP, How can I manage these block of IP addresses, is there any software out there to simplify this I heard that using DHCP server in a datacenter is not recommended, otherwise what would u say about MS DHCL server ofc considering we need to have backup serversin case of failur How can I assign a block of IPs to a specific rack, I know with different software and management its different but Im asking how it is done normally IP addresses are exposed to the whole network, what if a customer try to use an IP address and is not assigned to their server or rack , how can I prevent this or how can I track the IP usage DNS Management Im goin to setup at least two servers for our DNS servers, I know nothing about Datacenter DNS system, but I have configured DNS server in normal networks and also for webservers, Now I wanna know What exactly needs to be done for a DNS in a datacenter that is not done for normal networks. How can I configure PTR records why cant I configure PTR records on my webserver side DNS server and it should be done on datacenter DNS server , I mean what is the difference in DC DNS servers that allow us to to so , I know the question is very silly and simple but Im confused Is there any software outthere to allow doing the whole thing, I mean automatically add records to the DNS and also managin IP addresses !? Thanks in advance

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• SYS-5016T-MTFB will not POST without manual assistance (Motherboard: X8STi-F)

  - by Dan

  I have a Supermicro 5016T-MTFB 1U server which I am in the process of setting up, but it has a really strange problem. When the system is powered on it will not POST until I press the reset button a few times, followed by pressing the delete key on the keyboard to "wake it up". If I power it on and do nothing, the fans spin up but nothing else happens at all. After pressing the reset button once, the red "overheat" light comes on and blinks which is supposed to indicate a fan failure - but all the fans are working. Pressing reset again usually stops the blinking, and the system starts the normal POST routine but it will not actually get to the bios screen unless I press delete. If I don't press delete, it just continues to hang. After pressing delete it will take me into the bios setup screen, if I exit without saving changes I can boot the system normally. I was able to successfully install Linux with no trouble...but upon rebooting the same problem happened again. This board has integrated IPMI which I thought was the problem, so I disabled it via the jumper on the board. Did not help. Each time this system powers on, it goes on for a second, then turns off again for another second, then turns back on again. I don't know why it does that. Here is what I put in the system: 1 x Xeon E5630 (Nehalem) 80W TDP (it's not overheating, CPU temps stay under 40 degrees C) 2 x Kingston 2GB x 3 DDR3-1066 Memory ECC, unbuffered, unregistered (kvr1066d3e7sk3/6g) 1 x Intel X25-M 160 GB 2 x Western Digital RE3 1TB

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• Network Explorer Intermittently Fails to Display all Computers in Work Group

  - by graf_ignotiev

  I run a small computer lab of 10 computers and occasionally, when using the network explorer (a.k.a Network Browser) some or all of the remote computers will fail to appear. If I try to access a remote computer by its name I get an unspecified error (code 0x80004005), but I am still able to access it with the computer's IP address. The strangest part is that the problem will inexplicably go away after waiting awhile. Each computer is running Windows 7 x64 Enterprise and has identical hardware, software and configuration. They are all on the same subnet and in the same workgroup. I've spent days researching the problem and have tried the following solutions: Updated the BIOS, chipset and network adapter drivers Changed Power Settings in Network Adapter Properties so that the computer will not turn it off Disabled the Computer Browser service Changed the DHCP node type to broadcast Reviewed the Event Viewer logs Steps 3 and 4 have seemed to help the problem a little bit, but not completely. I'm beginning to suspect that the problem might lie with our router which is a ZyXEL ZyWALL 2WG, as the packets sent by Network Discovery may not be returning in time, but I wanted to get some perspective in the issue before I went any further.

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• Virtual (ESXi4) Win 2k8 R2 server hangs when adding role(s)

  - by Holocryptic

  I'm trying to provision a 2k8r2 Enterprise server in ESXi4. The OS installation goes fine, VMware tools, adding to domain, updates. All the basic stuff before you start adding Roles and Features. I've had this happen on two attempts already, and I'm not sure where the problem might be. I don't think it's hardware, because I have another 2k8r2 Standard server that's running fine. The only real difference is the install media. The server that's working was installed using a trial ISO and license. The one I'm having problems with is a full MAK installation. When I go to add a Role (the last case was Application Server) it gets all the way to "collecting installation results" before it hangs. CPU utilization in the vSphere client shows little spikes of activity with flatlines inbetween, but the whole console is locked up. The only way to release it is to power off and bring it back up. When you go to look at the added roles after bringing it back up, it shows that it is installed, but I don't trust that something didn't get wedged in all of that. The first install I did was with Thin Disk provisioning. The second attempt was with regular disk provisioning. In both cases 4GB of RAM, 2 vCPUs. VMware host is a HP Proliant DL380 G6, RAID-1 OS, RAID-5 data volume. 12 GB RAM. Has anyone else had this problem, or know where I should start poking around?

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• Why does just splitting an Ethernet cable not work?

  - by Sin Jeong-hun

  I thought the Ethernet is logically a one-line communication bus (for argument's sake, I am excluding hubs). All machines attached on the bus hears the same signals and the machines themselves try to avoid collisions by randomly backing off. http://computer.howstuffworks.com/ethernet6.htm If so, why would splitting one Ethernet line from my home router into two and connecting two computers not work? Why do I have to add a switch to it? *What the Internet said would not work. [4 port home router] ------[one Ethernet cable]-----[simple splitter]======[two computers] *What the Internet said I should do [4 port home router] ------[one Ethernet cable]-----[switch]======[two computers] Is this because of the signal degradation (reduced electric current)? Thank you for all the answers! The reason why I did not just use the two ports of my home router is... The 4-port gigabit router is in my room, and I had put a computer in another room (also my room, though). Since a wired network is far more reliable and secure, I had bought a long Ethernet cable and and connected the computer to the router. Now I was thinking about adding another computer to that room. I could buy another long Ethernet cable, but then there will be two cables between the rooms. The one line already is a minor annoyance, so I thought if I could share the one line between the two computers in that room. A switch would work, but it requires power and is a little bit pricey. That is why I wondered why it would not work to simply split the physical Ethernet cable. Apparently I do not completely understand how Ethernet and a switch work. I just have some bit of knowledge I heard in my college class.

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• Windows 7 hangs while loading desktop

  - by Joshua

  I am facing a weird problem. My computer hangs while loading the desktop, and only the background shows up; no icons or bars load. If I power the system on and off about 4-6 times, I may be able to use it normally. The desktop loads normally after rebooting or in safe mode; this only occurs when I start the system normally. I've tried several things to fix it, such as removing all start-up items, but it still doesn't solve the problem. What should I do? I found three major errors in Event Viewer: Source: Microsoft-Windows-DistributedCOM Level: Error DCOM got error "1084" attempting to start the service WSearch with arguments "" in order to run the server: {7D096C5F-AC08-4F1F-BEB7-5C22C517CE39} Source: Microsoft-Windows-DistributedCOM Level: Error DCOM got error "1084" attempting to start the service WSearch with arguments "" in order to run the server: {7D096C5F-AC08-4F1F-BEB7-5C22C517CE39} Source: Service Control Manager Level: Error The Network List Service service depends on the Network Location Awareness service which failed to start because of the following error: The dependency service or group failed to start.

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• [Ubuntu 10.04] mdadm - Can't get RAID5 Array To Start

  - by Matthew Hodgkins

  Hello, after a power failure my RAID array refuses to start. When I boot I have to sudo mdadm --assemble --force /dev/md0 /dev/sdb1 /dev/sdc1 /dev/sdd1 /dev/sde1 /dev/sdf1 /dev/sdg1 to get mdadm to notice the array. Here are the details (after I force assemble). sudo mdadm --misc --detail /dev/md0: /dev/md0: Version : 00.90 Creation Time : Sun Apr 25 01:39:25 2010 Raid Level : raid5 Used Dev Size : 1465135872 (1397.26 GiB 1500.30 GB) Raid Devices : 6 Total Devices : 6 Preferred Minor : 0 Persistence : Superblock is persistent Update Time : Thu Jun 17 23:02:38 2010 State : active, Not Started Active Devices : 6 Working Devices : 6 Failed Devices : 0 Spare Devices : 0 Layout : left-symmetric Chunk Size : 128K UUID : 44a8f730:b9bea6ea:3a28392c:12b22235 (local to host hodge-fs) Events : 0.1249691 Number Major Minor RaidDevice State 0 8 65 0 active sync /dev/sde1 1 8 81 1 active sync /dev/sdf1 2 8 97 2 active sync /dev/sdg1 3 8 49 3 active sync /dev/sdd1 4 8 33 4 active sync /dev/sdc1 5 8 17 5 active sync /dev/sdb1 mdadm.conf: # by default, scan all partitions (/proc/partitions) for MD superblocks. # alternatively, specify devices to scan, using wildcards if desired. DEVICE partitions /dev/sdb1 /dev/sdb1 # auto-create devices with Debian standard permissions CREATE owner=root group=disk mode=0660 auto=yes # automatically tag new arrays as belonging to the local system HOMEHOST <system> # definitions of existing MD arrays ARRAY /dev/md0 level=raid5 num-devices=6 UUID=44a8f730:b9bea6ea:3a28392c:12b22235 Any help would be appreciated.

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• linux mint VIA sound issue

  - by user2699451

  So I installed linux Mint 15 "Olivia" 64 bit on my Mecer W550EU laptop I have HD Audio with a VIA chipset charles-W55xEU charles # lsmod | grep snd snd_hda_codec_hdmi 36913 1 snd_hda_codec_via 51018 1 snd_hda_intel 39619 5 snd_hda_codec 136453 3 snd_hda_codec_hdmi,snd_hda_codec_via,snd_hda_intel snd_hwdep 13602 1 snd_hda_codec snd_pcm 97451 4 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel snd_page_alloc 18710 2 snd_pcm,snd_hda_intel snd_seq_midi 13324 0 snd_seq_midi_event 14899 1 snd_seq_midi snd_rawmidi 30180 1 snd_seq_midi snd_seq 61554 2 snd_seq_midi_event,snd_seq_midi snd_seq_device 14497 3 snd_seq,snd_rawmidi,snd_seq_midi snd_timer 29425 2 snd_pcm,snd_seq snd 68876 19 snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_hda_codec_via,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec,snd_hda_intel,snd_seq_device soundcore 12680 1 snd And my sound card charles-W55xEU charles # aplay -l **** List of PLAYBACK Hardware Devices **** card 0: PCH [HDA Intel PCH], device 0: VT1802 Analog [VT1802 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: PCH [HDA Intel PCH], device 2: VT1802 HP [VT1802 HP] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0] Subdevices: 1/1 Subdevice #0: subdevice #0 and my audio device charles-W55xEU charles # lspci -v | grep -A7 -i "audio" 00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family High `Definition Audio Controller (rev 04)` Subsystem: CLEVO/KAPOK Computer Device 0550 Flags: bus master, fast devsel, latency 0, IRQ 47 Memory at f7c10000 (64-bit, non-prefetchable) [size=16K] Capabilities: [50] Power Management version 2 Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+ Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00 Capabilities: [100] Virtual Channel Sometimes when I boot up, soundworks, other times it doenst, it is completely random, so far, no-one on xchat linux help or linux mint forums was able to help me, I have always had issues with sound on VIA chipsets I have: sudo apt-get upgrade && apt-get install mint-meta-cinnamon it seemed to help but after 2-3 reboots, the problem came back, btw, everytime I checked, pulse audio is selected to Duplex Audio Input & Output and alsa mixer is always unmuted!

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• Cooling for a small server room

  - by John Zwinck

  I have a server room about 12 feet square with an unfinished ceiling (exposed ducts and wiring). It houses a few servers (about ten, 1U and 2U) and some networking gear (four 1U switches, three routers, three modems, two cable boxes). With the door closed, it runs around 80 degrees Fahrenheit with half the servers turned on. When I turned on all the servers it reached 86 before I chickened out and propped the door open. The room is adjacent to air-conditioned office space, but does not itself have dedicated air conditioning. The ventilation for this room seems to be limited to one duct coming in at ceiling level, with a powered fan to draw air in, and one duct at ceiling level to allow air to flow out (it seems like it may just go into the drop ceiling cavity in the adjacent room). The adjacent office space stays fairly cool, but I'd prefer not to leave the door propped open all the time. There is both 110v and 208v service in the room, and plenty of power available. But there are no windows, and no floor drains (in a pinch we might be able to run a condensation hose through a small hole we'd drill in the wall to a nearby sink area, but only if absolutely necessary). I've considered portable A/C units, but I'm not sure on sizing and a lot less sure how we would run the exhaust hose(s). I suppose we could point one at the existing room exhaust duct (air return), but substantially modifying the duct is probably a no-no. I've also considered installing a fan box in the door of the room, but I'm concerned that this will only drop the temperature a little. Even right now, with all the equipment on, the room is at 83 degrees with the door open. And the main building A/C turns off daily at 6 PM to conserve energy, so the adjacent room temperature rises at night. How would you cool this room? Let's say the goal is to bring the temperature with everything running from a steady state of around 90 degrees down to 75 (equivalently, to offset the heat produced by ten 1U servers).

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• Debian software raid 1: boot from both disk

  - by bsreekanth

  I newly installed debian squeeze with software raid.The way I did was, as also given in this thread. I have 2 HDD with 500 GB each. For each of them, I created 3 partitions (/boot, / and swap) I selected the hard drive and created a new partition table I created a new partition that was 1GB. I then specified to use the partition as a Physical Volume for RAID. and used for /boot and enabled bootable. Created another partition, which is of 480 GB, and then specified to use the partition as a Physical Volume for RAID. and used for /. Created another partion and used for swap Then RAID configuration: Through Configure RAID menu - create MD device - (2 for the number of drives, 0 for spare devices) Next select the partitions you want to be members of /dev/MD0. I selected /dev/sda1 and /dev/sdb1 (for /boot) Next select the partitions you want to be members of /dev/MD1. I selected /dev/sda6 and /dev/sdb6 (for /) And no RAID for swap partitions 'Finish Partitioning and write changes to disk' -- Finish the rest of the install like normal Everything is ok now, except I am not sure how to test my raid config. When I pull the power of the HDD, it only boots from one disk. I read in some forum that I may have to install GRUB manually on the other. In Debian Squeeze, there is no grub command. Not sure how to make my software raid bootable from both disk. Also, please comment on my steps above. Anything unusual. I configured /boot partitions of both disks to be boot=yes. Not sure whether that is ok. Thanks, Bsr

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• How do I know what hardware to buy to meet my needs?

  - by Darth Android

  While Stack Exchange does not permit shopping recommendations, it doesn't provide any general advice to consider when buying hardware. So, instead of just telling those that ask what to buy that it's not allowed, let's tell them how to figure out what they need. When looking forward to build a computer, how do I know what to buy? How do I find out if a given CPU will be enough for a certain game or application that I want to run? How do I find out if a given graphics card will be enough for a certain game or application? What is important when looking at motherboards? How much memory do I need? How do I know how much wattage I need for a power supply? What size case do I need? What relevant standards do I need to read up on and be aware of? PCI, PCIe, SATA, USB 2.0, USB 3.0, etc... What "gotchas" do I need to be on the lookout for? Please keep responses generation-agnostic to ensure they will be helpful to our future users. :)

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