Personal computing discussed

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by Waco
Mon Aug 21, 2017 12:03 pm
Forum: Storage
Topic: Think you're going to repurpose that USB HDD? Think again
Replies: 23
Views: 985

Re: Think you're going to repurpose that USB HDD? Think again

Go ahead and avoid more of those HGST factory helium 8TB reds inside a usb case for $160 just for the irrational reason of being covered by the label of 1 of 2 manufacturers left. WD only does this on 2.5" drives, though. Call me irrational if you want. :lol: Meanwhile those who do their resea...
by Waco
Mon Aug 21, 2017 9:57 am
Forum: Storage
Topic: Think you're going to repurpose that USB HDD? Think again
Replies: 23
Views: 985

Re: Think you're going to repurpose that USB HDD? Think again

I've only seen WD drives like this. I avoid them, now, purely because of this BS.
by Waco
Mon Aug 21, 2017 9:55 am
Forum: The Back Porch
Topic: Anyone repair anything today?
Replies: 825
Views: 53480

Re: Anyone repair anything today?

An air compressor with a good impact wrench works magic on bolts like that. Done are my days with 6 foot levers and lots of weight only to break tools and/or snap bolts.

PB Blaster + impact wrench == unstuck bolt. :)
by Waco
Mon Aug 21, 2017 9:53 am
Forum: Graphics
Topic: Goodbye Vega 56 at MSRP
Replies: 54
Views: 2323

Re: Goodbye Vega 56 at MSRP

AMD can price it where they like, I have no problem with that. What I have a problem with, is claiming it's a $499 card and generating reviews with price-performance charts based on that claim, while making retailers pay over $499 for it so they cannot sell it for $499. Do we actually know that AMD...
by Waco
Mon Aug 21, 2017 9:48 am
Forum: Processors
Topic: About Silicon Lottery
Replies: 21
Views: 653

Re: About Silicon Lottery

I've only ever heard good things about them.
by Waco
Fri Aug 18, 2017 10:47 pm
Forum: Graphics
Topic: Question about a monitor, and a cheap video card
Replies: 20
Views: 606

Re: Question about a monitor, and a cheap video card

If all you need is 4K output, any card with HDMI 2.0 will work just fine. If you are't doing anything that requires 4:4:4 chroma sampling (design work or anything with 1-pixel wide red/green/blue lines) you can get away with many decent 4K TV sets. I run a Samsung set that I can't remember the model...
by Waco
Fri Aug 18, 2017 7:47 pm
Forum: Graphics
Topic: Goodbye Vega 56 at MSRP
Replies: 54
Views: 2323

Re: Goodbye Vega 56 at MSRP

So I guess all the good ones went to the reviewers? I'm going to go with buyer's remorse and a large helping of hyperbole, myself. Hawkwind is primarily active at Rage3d forums. You can read his "journey" with Vega in this thread: http://www.rage3d.com/board/showthread.php?t=34045172 His ...
by Waco
Wed Aug 16, 2017 3:49 pm
Forum: Graphics
Topic: Goodbye Vega 56 at MSRP
Replies: 54
Views: 2323

Re: Goodbye Vega 56 at MSRP

Pville_Piper wrote:
So I guess all the good ones went to the reviewers?

I'm going to go with buyer's remorse and a large helping of hyperbole, myself.
by Waco
Wed Aug 16, 2017 3:45 pm
Forum: General Software
Topic: NIST password guidelines updated!
Replies: 38
Views: 1028

Re: NIST password guidelines updated!

And passcodes. Heh. 1) look at the door frame 2) area code/zip code 3) 123. 321. 1234. 4321. :P I'll freely admit I missed a few key points in your original post. :) However, passcodes are per badge affairs at all the sites I'm aware of, at least. IIRC Y-12 used chain-link fence. Other sites tend t...
by Waco
Wed Aug 16, 2017 3:41 pm
Forum: Graphics
Topic: Goodbye Vega 56 at MSRP
Replies: 54
Views: 2323

Re: Goodbye Vega 56 at MSRP

Lordhawkwind wrote:
...and forget the 750w PSU it won't do the business.

Yes, yes it will.

Any good 500W PSU will power a high-end rig + Vega except in the most extreme of cases. If your 750W PSU can't cut it, you've got a dying or crap PSU.
by Waco
Wed Aug 16, 2017 2:01 pm
Forum: General Software
Topic: NIST password guidelines updated!
Replies: 38
Views: 1028

Re: NIST password guidelines updated!

I've never been in the military etc..., but I'm pretty sure the only way they've found around this problem is authorizing the low-level guys at the entry points to *KILL* anyone who (almost certainly legitimately) is a higher ranked officer who "forget" his documents/whatever and is tryin...
by Waco
Tue Aug 15, 2017 1:36 pm
Forum: General Software
Topic: NIST password guidelines updated!
Replies: 38
Views: 1028

Re: NIST password guidelines updated!

chuckula wrote:
Captain Ned wrote:
druidcent wrote:
I'm just sad they did not reference XKCD in the publication :(


Correct Horse Battery Staple


That's amazing! I've got the same password on my luggage!

Great, now I need to watch Spaceballs again. :P
by Waco
Tue Aug 15, 2017 10:54 am
Forum: Gaming
Topic: StarCraft: Remastered
Replies: 62
Views: 2727

Re: StarCraft: Remastered

The graphics are indeed a high point. 4K Starcraft Remastered is just beautiful, they preserved the original feel of the art perfectly.

I kinda wish I could zoom out a bit more, but I understand why they didn't allow that.
by Waco
Mon Aug 14, 2017 2:11 pm
Forum: Gaming
Topic: StarCraft: Remastered
Replies: 62
Views: 2727

Re: StarCraft: Remastered

Definitely going to be installing this tonight. :)
by Waco
Sun Aug 13, 2017 9:16 pm
Forum: The Back Porch
Topic: NOOOOOOOB
Replies: 130
Views: 12745

Re: NOOOOOOOB

That could happen with any language. Even code compiled from C/C++ is typically paged in on demand, even if the symbol linkage is done at build time (static linkage) or when the application starts (dynamic linkage). So if all of your nodes are running in sync and sharing a file system for their bin...
by Waco
Sun Aug 13, 2017 3:48 pm
Forum: Storage
Topic: I need some help, gerbils! Which are the quiet consumer hard drives?
Replies: 49
Views: 1733

Re: buy once cry once

I also think doing weird crap like 24-bay RAID 6/Z2 that performs like a super bad latency single drive is a clear sign of a penny wise and pound foolish person. It totally depends on your workload. For NAS duties (not random read-heavy with large datasets) a wider setup is pretty decent. For writi...
by Waco
Sun Aug 13, 2017 3:44 pm
Forum: The Back Porch
Topic: NOOOOOOOB
Replies: 130
Views: 12745

Re: NOOOOOOOB

That's not an entirely crazy thing to do if the Python code is all high-level control logic, with the computational heavy lifting done by libraries coded in a "closer to the metal" language like C/C++. It's rough on the storage level, since Python loves to load things dynamically in the m...
by Waco
Sun Aug 13, 2017 11:27 am
Forum: The Back Porch
Topic: NOOOOOOOB
Replies: 130
Views: 12745

Re: NOOOOOOOB

Airmantharp wrote:
Python takes that 'not knowing what's going on behind the scenes when things go wacky' to a whole new level...

...and yet, there are people writing HPC code in it. :(
by Waco
Fri Aug 11, 2017 11:43 am
Forum: Graphics
Topic: How about an Rx 480... for $640
Replies: 129
Views: 5635

Re: How about an Rx 480... for $640

The surge in GPU prices has broken Microcenter: http://www.microcenter.com/product/481968/Radeon_RX_470_ARMOR_Overclocked_Dual-Fan_8GB_GDDR5_PCIe_Video_Card Buy one for $329, great. But buy 2 or more and they are only $399. Obviously, they are only willing to let you have one at the "reduced&q...
by Waco
Fri Aug 11, 2017 11:34 am
Forum: General Hardware
Topic: Computer starts for 3-5 seconds, resets, stays on but does nothing.
Replies: 31
Views: 1164

Re: Computer starts for 3-5 seconds, resets, stays on but does nothing.

I echo the PSU sentiment. If you can find a loaner from a buddy or something, try swapping that to see what happens. I've had dodgy PSUs do all sorts of weird things, so it's always useful to keep older PSUs around just as a backup for troubleshooting.
by Waco
Thu Aug 10, 2017 3:32 pm
Forum: Linux, Unix, and Assorted Madness
Topic: A Linux RAID-1 mystery (and some answers)
Replies: 41
Views: 1026

Re: A Linux RAID-1 mystery (and some answers)

Also keep in mind that FreeNAS machines perform massively better with enough ram, and "enough" is usually more than any desktop or laptop is likely carrying. I disagree with this, fundamentally. They can perform massively better *if your workload fits into the ARC*. 99% of home users are ...
by Waco
Thu Aug 10, 2017 8:00 am
Forum: Storage
Topic: I need some help, gerbils! Which are the quiet consumer hard drives?
Replies: 49
Views: 1733

Re: I need some help, gerbils! Which are the quiet consumer hard drives?

The negative effects of UBER should be mitigated by RAID systems that do a periodic scrub. Some percentage of sectors which had undetected write failures or which have gone bad after being written get detected and rewritten with good data before a drive failure forces a replacement and rebuild. I'm...
by Waco
Wed Aug 09, 2017 9:58 pm
Forum: Storage
Topic: I need some help, gerbils! Which are the quiet consumer hard drives?
Replies: 49
Views: 1733

Re: I need some help, gerbils! Which are the quiet consumer hard drives?

I believe your analysis is more or less correct from a theoretical standpoint. Where it diverges from reality is that the actual uncorrected error rates we see from real drives tends to be substantially lower than the UBER would imply. So the probability of a rebuild failure is lower in practice, b...
by Waco
Wed Aug 09, 2017 9:53 pm
Forum: The Back Porch
Topic: NOOOOOOOB
Replies: 130
Views: 12745

Re: NOOOOOOOB

It's like when people ask me if I knew so-and-so when I worked at Fermilab. Thousands of employees, of which I probably knew several dozen at best. The HPC community at LANL is pretty small, but in terms of employees there are almost 20,000 spread across the campus. If they don't touch computers in...
by Waco
Wed Aug 09, 2017 9:52 pm
Forum: Linux, Unix, and Assorted Madness
Topic: A Linux RAID-1 mystery (and some answers)
Replies: 41
Views: 1026

Re: A Linux RAID-1 mystery (and some answers)

Ahh, gotcha. Always gotta take the human element into account. :wink: But in a situation like this, which drive would they replace? Just pick one at random? :roll: (I can see it now... "We replaced one of the drives, and the errors went away after the rebuild, so we must have guessed right!&qu...
by Waco
Wed Aug 09, 2017 5:42 pm
Forum: The Back Porch
Topic: NOOOOOOOB
Replies: 130
Views: 12745

Re: NOOOOOOOB

There's no harm in names - they're publicly available anyway. :) I do recognize the name, but we work in totally different groups.
by Waco
Wed Aug 09, 2017 5:40 pm
Forum: Linux, Unix, and Assorted Madness
Topic: A Linux RAID-1 mystery (and some answers)
Replies: 41
Views: 1026

Re: A Linux RAID-1 mystery (and some answers)

I also realize due to this that now I get to check mirrors at work on systems I didn't build. I wouldn't stress over it if I was you. As noted above, it seems to be harmless from a data integrity standpoint, since it only affects deleted files. The main effects of it are that a scrub pass may repor...
by Waco
Wed Aug 09, 2017 2:24 pm
Forum: Linux, Unix, and Assorted Madness
Topic: A Linux RAID-1 mystery (and some answers)
Replies: 41
Views: 1026

Re: A Linux RAID-1 mystery (and some answers)

I also realize due to this that now I get to check mirrors at work on systems I didn't build.

I appreciate the effort you put into this!
by Waco
Wed Aug 09, 2017 11:32 am
Forum: Linux, Unix, and Assorted Madness
Topic: A Linux RAID-1 mystery (and some answers)
Replies: 41
Views: 1026

Re: A Linux RAID-1 mystery (and some answers)

Nice sleuthing! It doesn't surprise me that mdraid isn't perfect, it also doesn't surprise me that filesystems designed for speed over integrity might leave the underlying disks in an inconsistent state. If this was any other situation you'd be guessing at which disk is "correct", this is ...
by Waco
Tue Aug 08, 2017 9:35 pm
Forum: The Back Porch
Topic: NOOOOOOOB
Replies: 130
Views: 12745

Re: NOOOOOOOB

I think the original post was before I got here in any event I was curious why it was at the top and did a Google search, I wonder Waco if this extra work you have been doing is related to this. I realize I'm Canadian and may not have seen this when it was reported but I never heard about this clos...
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