Berkeley CSUA MOTD:Entry 11621
Berkeley CSUA MOTD
 
WIKI | FAQ | Tech FAQ
http://csua.com/feed/
2025/07/08 [General] UID:1000 Activity:popular
7/8     

2003/12/31-2004/1/1 [Computer/HW/CPU, Computer/HW/Drives] UID:11621 Activity:nil
12/30   Three weeks ago I accidentally overclocked my AthlonXP 2000MHz to
        2500MHz for 24 hours running setiathome.  A test with memtest86
        showed no errors, but since then, I've had three different disk
        drives get corrupt data with "IO" errors.  I fear this is related.
        badblocks -w showed no errors. drives work fine after reformatting
        ext3. The overclocking was done with very fast case fans and a
        copper CPU cooler rated for overclocking.  The CPU fan was turned
        up all the way.  Do you think overclocking damage would cause this
        error?  Could overclocking fry an IDE controller?
        \_ If you overclock the front side bus, you are stressing everything
           on that bus, including IDE interfaces.
        \_ It's quite likely you fucked your system, yes.  Did you have
           temp measurements before and during for this 'test' or did you
           just figure it'd be fun to fry an expensive new chip?
                \_ He said he'd done it accidentally.
        \_ I had this EXACT same problem when I fried a memory stick.
           Put a new RAM chip in and see if it goes away.  Also, make
           SURE that there is good air flow over the memory (I.e.. no
           drive cables occluding the case air flow).
                \_ I fried a mem as well. There were no smoke whatsoever, but
                   it's a goner forever. Overclocking ain't what it used to be
           \_ I ran memtest86 for many hours w/o a single flaw. -op
               \_ Really-  just try to put in a new mem stick.  In general,
                  don't trust software-  Its a 10 minute experiment.
                  \_ then what? how to corrupt a hard drive in 10 min?
2025/07/08 [General] UID:1000 Activity:popular
7/8     

You may also be interested in these entries...
2012/1/4-2/6 [Computer/HW/Drives] UID:54281 Activity:nil
1/4     I want to test how my servers behave during a disk failure and
        a RAID reconstruction so I want to simulate a hardware failure.
        How can I do this in Linux without having to physically pull
        a drive? These disks are behind a RAID card and run Linux. -ausman
        \_ According to the Linux RAID wiki, you might be able to use mdadm
           to do this with something like the following:
	...
2011/9/14-10/25 [Computer/HW/Drives] UID:54173 Activity:nil
9/13    Thanks to Jordan, our disk server is no longer virtualized. Our long
        nightmare of poor IO performance should hopefully be over. Prepare for
        another long nightmare of poor hardware reliability!
        ...
        Just kidding! (I hope)
        In any case, this means that cooler was taken out back and shot, and
	...
2011/2/14-4/20 [Computer/SW/Unix] UID:54039 Activity:nil
2/14    You sure soda isn't running windows in disguise?  It would explain the
        uptimes.
        \_ hardly, My winbox stays up longer.
        \_ Nobody cares about uptime anymore brother, that's what web2.0 has
           taught us.  Everything is "stateless".
           \_ You;d think gamers would care more about uptime.
	...
2010/7/22-8/9 [Computer/SW/OS/FreeBSD, Computer/HW/Drives] UID:53893 Activity:nil
7/22    Playing with dd if=/dev/random of=/dev/<disk> on linux and bsd:
        2 questions, on linux when <disk>==hda it always gives me this off
        by one report i.e. Records out == records in-1 and says there is an
        error. Has anyone else seen this?  Second, when trying to repeat this
        on bsd, <disk>==rwd0 now, to my surprise, using the install disk and
        selecting (S)hell, when I try to dd a 40 gig disk it says "409 records
	...
2009/10/27-11/3 [Computer/HW/Drives] UID:53474 Activity:nil
10/27   I just read an article that Facebook had moved their database
        to all SSD to speed throughput, but now I can't find it. Has
        anyone else seen this? Any experience with doing this? -ausman
        \_ I hope you're not running mission critical data:
           http://ask.slashdot.org/story/09/10/27/1559248/Reliability-of-PC-Flash-SSDs?from=rss
        \_ Do you have any idea how much storage space is used by Facebook,
	...
2009/8/4-13 [Computer/SW/OS/Windows] UID:53239 Activity:kinda low
8/3     VMWare + Windows XP + Validation question. I need to test stuff with
        Service Pack 3 installed. I have a valid key that I own (yeah yeah I
        actually *bought* a copy, please don't flame me for supporting evil
        M$). Is it possible to register the key once, and then duplicate it
        for testing purposes?  Will Windows or Microsoft detect copies and
        disable the rest the copies?
	...
2009/7/28-8/6 [Computer/HW/Drives] UID:53216 Activity:nil
7/28    Does it make sense to defragment disks on VMWare? My 80GB disk
        on VMWare isn't really using 80GB, it just uses what it needs.
        Will defragment do anything to it?
        \_ If you want to speed up disk operation in your VM, it's best to
           defragment the disks in your VM, then defragment the disk on your
           host machine where the VM files are.
	...
2009/7/24-27 [Computer/SW/WWW/Browsers, Computer/SW/OS/OsX] UID:53191 Activity:kinda low
7/24    Firefox 3.5.1 on MacOS is a piece of crap. It crashes ALL THE TIME.
        It has crashed 3 or 4 times on me in the last hour, and not on
        the same pages either. The new Yahoo! home page also sucks ass.
        \_ os x keeps trashing my raid disk: '11 hours to rebuild. have fun
           with the kernel IO subsystem running like shit until then".
           Worthless piece of shit.
	...
2009/7/17-24 [Computer/SW/OS/OsX] UID:53156 Activity:kinda low
7/17    -rw-r--r--@
        What does the "at sign" mean? This is on Mac OS. VMWare disk file.
        \_ The file has metadata attributes
           \_ How do I add/delete attributes to files? What about
              -rw-r--r--+ <-- what is the "+" sign? Also how do you make
              tar preserve these attributes?
	...