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• Dell PowerEdge 6850 Degraded HDD

  - by Matt

  Good Morning, We have a dell power edge 6850 with a degraded drive in the RAID array. I have never had to recover such an issue, so any help or advice would be welcome. Basically it hasn't affected the server at an operating system level, but has slowed down performance, I have a replacement drive in hand but as this is our main database server I want to proceed with extreme caution. My options as I see them are - Can I just hot swap the degraded drive with the new one and the data will automatically re-sync and we are all back to normal presumably this is dependant on the current raid configuration? reading various comments on-line I may need to re-configure the RAID array and re-build the broken drive? This screams disaster to me with the main worry being that I wipe any other data. Option 1 would of course make my day. Thanks in advance

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• LVM mirroring VS RAID1

  - by syrenity

  Hi. Having learned a bit about LVM mirroring, I thought about replacing the current RAID-1 scheme I'm using to gain some flexibility. Problem is that according to what I found on the Internet, LVM is: 1) Slower then RAID-1, at least in reading (as only single volume being used for reading). 2) Non-reliable on power interrupts, and requires disk cache disabling for prevention of data loss. http://www.joshbryan.com/blog/2008/01/02/lvm2-mirrors-vs-md-raid-1/ Also it seems, at least to several setup guides I read (http://www.tcpdump.com/kb/os/linux/lvm-mirroring/intro.html), that one actually requires a 3rd disk for storing the LVM log. This makes the setup completely unusable on 2 disks installations, and lowers the amount of used mirror disks on higher amount of disks. Can anyone comment the above facts, and let me know his experience of using LVM mirroring? Thanks.

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• How to get access to console to reset Cisco 3750?

  - by genehack

  I acquired two Cisco 3750 switches from another part of my organization. I was able to complete the standard password/config reset procedure on one without any issues -- boot it, put it into express config mode, telnet in, reset the passwords, etc. The second one doesn't ever boot to the point where it displays anything on the console. When power cycled, the 'SYST' light flashes green a few times, then comes on a solid green and stays lit. None of the other lights ever flash or light up. Holding down the 'MODE' button for up to 30 seconds produces no noticeable effects. Nothing ever comes out on the console. Since I was able to configure the first one without any problems, I know my connectinon is good -- console port configured right, good cable, etc. Is this just a hardware problem with the switch? Is there any way I can recover from this and get the switch back into a state where I can configure it?

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• Windows 7 just restarts, no BSOD, shows "Event ID 14 volsnap"

  - by Mdc007

  My Windows 7 just restarts without giving me a BSOD. When it reboots, it will hang sometimes and you have to let it rest. Sometimes it will print a message saying that Hal.dll is missing or corrupt. When it does restart I can't run a backup or a clone drive – it comes up with constant errors. I tried to run chkdsk – it says everything's clean. What is really puzzling is SyncToy on a different drive hangs half way through and won't run either. Machine: OCZ SSD Agility 2 for C drive SATA HDD for programs, documents on D drive MSI AMD 880 chipset Event viewer says something about critical power failure I/O operations and "Event ID 14 volsnap" – but that is just telling me the computer powered off which I already know.

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• Remote access to BIOS?

  - by j-g-faustus

  I have a home server running headless (i.e. without a monitor), using ssh for remote access. This works fine most of the time, but I still need a graphics card and still need to drag out a monitor whenever I have to access BIOS, (re-)install the OS and similar. I know that there are business servers that let you control everything remotely (over Ethernet), including power up and BIOS access. Is this type of functionality available for "prosumer" class hardware? If so, where does it sit - should I look for motherboard support, a PCI-e card or an external device? And does this type of functionality have a name, so I know what to google for?

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• Host hijacks USB printer from VirtualBox machine

  - by jackhab

  I have Ubuntu 9.1 running Windows XP in VirtualBox. Windows XP is a print server (there is no Linux driver for our printer). The printer is connected via USB and its USB filter is added to virtual machine settings. The problem is that every several hours Ubuntu tries to access the printer (trying to install it) and disconnects it from the virtual machine. The printer remains disconnected until I connect it again manually. I thought it is a problem with Windows power management but disabling sleep/standby in Windows didn't help. Please, advise.

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• Computer sending data while turned of

  - by Nicklas Ansman

  I have a some what strange problem (which could have and easy and obvious solution for all I know). My problem is that when I've booted ubuntu (now 10.4 but same problem with 9.10) and turns it off it starts sending a HUGE amount of data via the ethernet cable, so much in fact that my router can't handle it and stops responding. As far as I can tell the computer is completely turned off with no fans spinning. I can add that if I boot windows I do not have this problem, just when exiting ubuntu. There are two "fixes" for my problem: Pull the ethernet cable until the next boot Turn off power to the PSU and wait for the capacitors to unload Is there anyone who knows what could be going on? I'd be happy to post some logs or conf-files. Currently I'm using the ethernet port on my motherboard which is a Asus P6T Deluxe V2 with an updated version of the BIOS (maybe not the latest but since it only happens when I've been in ubuntu I don't wanna mess with the BIOS too much). Regards Nicklas

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• Time Machine (archive) of pre-Leopard systems?

  - by benc

  I want to get off an older Mac OS X system permanently. It is an iBook G3, so that has two important characteristics: Power PC, not Intel based. Runs only Tiger, not Leopard. This means, as far as I can tell: Cannot run Time Machine directly. Here's the approach I have been contemplating: Mount the drive in Firewire mode. Back up the drive as a external drive to the Time Machine volume. Disconnect the drive (permanently). However, I'm concerned that this drive will eventually age out, when the Time Machine volume fills up, and the old-system-as-external-drive is gone. Would it be better to do a single backup with another utility, to shared disk?

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• Macbook superdrive got calibration problems

  - by Fractal

  I have an intel macbook dual 2Ghz, bought about three years ago. I've had some problems with the superdrive and changed it a year and a half ago. the drive is Matshita DVD-R UJ 857 now I'm into burning cd's again and try to burn a DVD with Toast Titanium from an .iso on my hard drive But it won't work. When I launch the burn, the disc suddenly stops turning, and an error log pops: medium error, sense code = 0x73, 0x03 then I try with the built in cd burner of the macbook as soon as I click burn, the cd stops turning in the drive, and error log says peripheral couldn't calibrate power of the laser required for medium so since I'm not that logical of a geek, I try my first idea: let's see with other brands of DVD! the problem is that it works, now. but I'd like for all of my medium to be usable, and I've already seen my ridata DVD being burn, so here's the question. What the hell is happening with my superdrive? :)

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• Do you find using a VPS worthwhile?

  - by Grant Palin

  I am currently on shared hosting, and have been recently looking at the idea of switching to a VPS instead. From what I have gathered, a VPS allows you more control over your server setup. But at the same time you have to set it up yourself, and maintain it. This is the bit I am asking about... Despite the power and flexibility you get from using a VPS, you have to take care of it yourself. Is it worth it? Some context: I am primarily a Windows user, but have been tinkering with various Linux distros off and on for several years. I know enough about Linux to get by, or to be dangerous - take your pick. I've also done some tinkering on my current host, but have no serious sysadmin experience. There's always a first time!

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• LAMP: How do I set up http://myservername.com/~user access?

  - by Travesty3

  Been trying to Google this, but I can't figure out good search terms to find any info about what I need, since I don't really know what it's called. I'm pretty much being thrown to the wolves to figure out how to set up a LAMP server. We had someone who knew how to do it, he set one up and then quit. It was set up so that when I went to "http://{myservername}.com/~travis" it showed the contents of my /home/travis/public_html folder. This worked fine, then we lost power and the server restarted (I know, battery backup, but this is a dev server in a dev building so it's OK). Now, the browser can't find that URL. I also need to know how to set this up on a new server, so instead of wasting time diagnosing this problem (probably just something dumb I did messing with settings or something), I really need to know how to set this up from scratch. Thanks for taking the time to read this and (hopefully) answer!

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• Software for printing small photos on larger paper with easy layout snapping

  - by ldigas

  Have some photos and pictures to print (graphs, but that doesn't matter here). So far when printing I inserted them in MS Word, played with layout on the paper, and after half a day, finally managed to get it just right. Usually then, the power runs out :-) Anyways, does anyone know of any software which enables me to easily put up some kind of a layout (one under the other, or some rectangular grid) where I can just "snap" photos next to each other, before printing the whole thing. I know I can do that in pretty much any photo editing program, but the problem is that that pixel hunting takes time ... and is generally a very annoying process, expecially when you don't want to edit the photos in mind, just print them out. Anyways, I'm sure you get the general idea ... Suggestions ?

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• Ubuntu 11.04 hangs at "checking battery state" while booting

  - by MisterSir

  When I try to boot Ubuntu 11.04, it just hangs when it gets to checking battery state. I know this issue is usually related to graphic drivers, but it worked like a charm for months now. Last time I was on Ubuntu I updated my system with the update manager, so maybe an update caused it. Anyway, I really need Ubuntu. I'm in the middle of work on a website and I have a deadline, so I need some help over here. Thanks. p.s. I tried reinstalling gnome-power-manager. Didn't work. And I'm not on a laptop.

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• The Shearin Group Real Estate Brokers: Projektets blå Zone i strand byer

  - by user224103

  Jeg kan virkelig godt lide hvad de blå Zone projekt gør: det er folkesundheden initiativledes af strand byer sundhed District, at gøre livet bedre i vores lokale samfund. BlåZone anmoder lokale South Bay beboere til at tænke om genbrug, grøn-levende, ogvirkningen deres handlinger og daglige living har på miljøet og dem omkring dem. Kast begivenheder og kampagner omkring strand byer, og har haft en stor indflydelsepå Hermosa Beach i særdeleshed. For eksempel, holder de en workshop på 18 januar2014 kaldet Power of Purpose på Redondo Beach Performing Arts Center. Workshoppen vil bliver alt om hvordan formål vedrører vores personlige værdier,overbevisninger og prioriteter og køre byKathleen Terry af lederskab fra ManhattanBeach og lederskab Redondo og formand for Manhattan Beach Rotary Club.

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• How to set Laptop Brightness in Gnome and /proc on Thinkpad W510?

  - by hakre

  I can set the brightness of my laptop screen already via /proc. I can read and change the value. Now I've set the value to 33 and then I went into gnome power management and enabled the option that it should reduce the backlight brightness being on battery. That works, the screen gets darker. If I now read out the current setting from /proc it still says it's 33. So I assume that there is another node in /proc to be used to control the brightness. The node I use so far is: /proc/acpi/video/VID/LCD0/brightness I'm using the nouveau driver. With the nvida driver the brightness can not be controlled.

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• Identify "Composite Document File"

  - by Steven

  In a folder containing several PowerPoint Presentations and Spreadsheets, I discovered the following file: Name: ppt115.tmp Size: 160 MB Meta: No EXIF or other metadata Type: (as identified by the cygwin / linux program 'file') Composite Document File V2 Document, No summary info Notes: The filename does not correspond to other files in the directory. Neither MS Power Point nor Excel can open the file. MS Word will only attempt to recover text. Please help me identify this file. Is it just a temporary file that I can safely remove?

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• Delay before booting with laptop

  - by Priednis

  I have almost the same problem as in Delay before booting? My computer is a practically new (couple months) Lenovo X200 Tablet (System Model 7449FXG). So when I press the power button, the indicator light that means "computer is on" turns on, but nothing else happens for about 5 mins, after that the computer starts booting normally. The same happens also on restart. And no USB or any other device for that matter is plugged in to the computer. And at the delay time the monitor is blank - actually not on at all.

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• Fedora Core 11 won't boot without a monitor

  - by feihtthief

  I have a P4 system that I installed Fedora 11 on. It will not boot without a monitor attached. The monitor can be off (not even have power plugged in), but must be attached. Without a monitor the hard disk thrashes around a bit like it's starting up services, but does not get to the point where I can ssh into the box. I have set the default runlevel to 3 and removed the rhgb entry from grub. Any suggestions welcome. Edit: I have already set the run-level to 3. The machine boots up fine with the monitor plugged in to the point where I can SSH into it. as soon as i unplug the monitor and reboot, it will not boot to that point.

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• Is there any Mac Pro hardware parts that can ONLY be purchased thru Apple?

  - by bigp

  I'd like to know if I need to be concerned about any hardware parts that I should include in a brand new Mac Pro purchase, instead of trying to hunt it down on 3rd party vendors (or whitelist vendors / hardware suppliers). The main components I'm interested for "upgradeability" are: Processors (If starting with Two 2.4GHz Quad-Core "Westmere"); RAM (If starting with the least possible, which seems to be 6 x 1GB); Video Cards (If starting with one ATI Radeon HD 5770, can a 2nd one be purchased elsewhere?) Hard-Drives (Since these are mounted in specialized trays [if I'm not mistaking], are they also sold elsewhere? And can they be bought as SSDs?) Power Supply (Do I need to be concerned about this at all, or does it auto-adjust depending on the new component upgrades?) I just want to be sure by choosing a Mac Pro with lower component specifications that I can in fact purchase upgrade parts cheaper elsewhere. Thanks!

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• Laptops trying to connect via wireless? Only able to connect only via wired connection

  - by Chris J. Lee

  It seems that all the wireless laptops in the office have disconnected and are unable to reconnect to the wifi after a terrible storm caused some power interruptions. Troubleshooting actions Verify wireless broadcasting is up With each laptop i ended up flushing their dns cache on Win 7 (ipconfig /flush ) Performed an ipconfig /all to see what the new ip is Made sure password was correct Reset the router (multiple times) restarted each laptop. Tried connecting wirelessly Am i missing some small detail ? Network information The router is a linksys/cisco WRVS4400N router. Supports a lot of fancy features i don't know how to use. We have 3 static ip's the conference room computer, the wireless printer, my computer Mostly windows machines, we have 3 mac users

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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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• PC reboots spontaenously: debugging tips

  - by aaron

  I swapped my core 2 duo for a quad core recently, and generally things run fine, but every now and then my computer just restarts. I don't even get a blue screen (Vista 32). Core temp isn't a problem. My thinking is that my power supply is inadequate, but I haven't been able to test that (one idea was to under clock the cpu to see if that helped, but going up in speed was the only simple thing to do in the BIOS) Two cases where I semi-consistanly get problems: - Borderlands windowed after some period of time (and some other games, but Borderlands does it pretty regularly) - watching a video (e.g. quicktime/vlc) and having another video running Another thought is non-cpu heat? Maybe the graphics card? Any thoughts on how to track this down appreciated. Thanks!

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• How can I reduce the CPU usage of Offline Files?

  - by Diego

  Whenever I have the Offline Files service running, there is a constant 25% CPU usage on svchost.exe (this is a quad core, so that means it's using up one core). This, in turn, triples the power consumption and keeps the machine hot... I do have several GB synchronized (music collection), but they are not changing at all, in either side. Am I misusing this feature? Is there anything I can configure to keep it down when there's nothing to do? Or should I forget about it and synchronize big folders manually?

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• Any experience with SATA SAS Interposer Cards?

  - by korkman

  Driven by the current price difference between SATA and SAS disks on one side and the potentially bad behaviour of SATA disks in bigger storage arrays on the other side, I have found so-called SATA-to-SAS interposer cards. Advertised as "seamlessly adding SAS capabilities to existing SATA disk drives", I wonder if anyone here has had some experience with these or similar products. The major benefits I can identify are the increased cable voltage (if all drives are SAS connected), the ability to power-cycle the drive and multipath (if desired). Obviously the SATA drive will still have to be RAID edition. The question is: Do these cards indeed increase the overall reliability of a storage system, or will failing SATA disks cause trouble nevertheless? Edit: I'm not asking for hypothetical answers, only actual experience please. I'm well aware that the typical 10k SAS drive is more reliable (and better performing) than 7200 SATA drives. But how does a nearline SAS, which is phyiscally the same disk as its SATA counterpart, compare to the SATA version with interposer?

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• How can I access my mini-pc (RaspberryPi / MK802 / Mele A1000 / VIA APC) via ethernet/wifi without having Monitor?

  - by sky770

  Soon I will be getting my own mini-PC (RaspberryPi / MK802 / Mele A1000 / VIA APC). But I was wondering whether is there any possibility that I can just power up and access my mini-pc's OS by connecting it to wifi/ethernet link and remotely access it over the LAN without actually needing a monitor (throughout the process?) ? I currently own a laptop and need a download box and later will be getting a HDTV for converting to a HTPC :D So, I don't really own a spare monitor now but I do have an extra keyboard and mouse. Is there exists any linux distro for the same? which I can use to directly fireup my mini-pc and hook it up across my LAN to remotely access through my laptop? Any suggestions appreciated :) Regards, sky770

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