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1. I examined the good superblocks to make sure I knew how to recreate the array exactly (i.e. chunk size, etc). 2. I zeroed all the superblocks on all the disks. 3. I recreated the array with the "--assume-clean" option. 4. I marked it possibly dirty with: mdadm --assemble /dev/md0...

SUCCESS!! :)

One thing I don't understand is why mdadm doesn't just resync the superblocks when I specify "--force" with "--scan". It has the configuration information in mdadm.conf. That's why I put it there so if things went wrong I would be able to restore the array easily. So much for that >:(. Bah!

Attempting to re-add the devices doesn't work: # mdadm --manage /dev/md0 --re-add /dev/sda1 mdadm: cannot get array info for /dev/md0 # mdadm --manage /dev/md0 --re-add /dev/sdb1 mdadm: cannot get array info for /dev/md0 Annoying. Sorry for the spam-style thread. It helps me think through...

Oops. The other two disks: # mdadm --misc --examine /dev/sdd1 /dev/sdd1: Magic : a92b4efc Version : 00.90.03 UUID : 20694a10:5013084e:6dde8b75:f422ec4e Creation Time : Fri Jul 7 14:56:21 2006 Raid Level : raid5 Device Size : 245111552 (233.76 GiB 250.99...

Here's the contents of the superblocks on the good disks: # mdadm --misc --examine /dev/sdc1 /dev/sdc1: Magic : a92b4efc Version : 00.90.03 UUID : 20694a10:5013084e:6dde8b75:f422ec4e Creation Time : Fri Jul 7 14:56:21 2006 Raid Level : raid5 Device Size ...

Oh, and I think mdadm --assemble --update=uuid Might be handy. It should update the uuid on the superblocks of the RAID disks. Also: mdadm --assemble --update=resync Is something I'm considering trying after that and before I use the array --if the first command can fix the superblocks.

I found: mdadm --misc --examine I'm going to fiddle with that and see if I can learn anything.

Another question. If I recreate the array should I use the "--assume-clean" option? That's what I'm leaning towards right now. If I don't will the data be wiped? I'm worried the sync will wipe everything. OTOH, if I do, do I risk corruption because of the crashes? The filesystem was a...

My fileserver crashed a couple times lately, and I just noticed that the RAID array didn't come back up the last time. I stored the configuration in /etc/mdadm.conf: # cat /etc/mdadm.conf DEVICE /dev/sda1 /dev/sdb1 /dev/sdc1 /dev/sdd1 /dev/hda1 ARRAY /dev/md0 level=raid5 num-devices=5...

Actually, Handruin, I do want to at least look very seriously at Cat 6. One of the most annoying things about Home Depot for me was that I couldn't compare prices between 5e & 6. They only had 5e. Some of the runs will be pretty long too --like 20m. Robotnik, it turns out has 1000ft 5e for...

I'm going to have to make a lot of ethernet cables for the house soon, and I'd prefer to buy a bunch of cable and the plugs in bulk. I checked out Home Depot. It was $75 for 500ft of Cat5e. But the plugs were nearly a dollar each. What I'd really like to do is find a good online distributor...

I have an LX1 as well Adriel, and it's been a terrific camera. The noise sensitivity of the sensor is terrible. I have to keep it <=ISO 100, but if you shoot RAW, noise isn't nearly as much of an issue as people make it out to be. There are excfellent tools for dealing with the problem. I'm...

I'd previously read the first two installments of that LA Times series. It's very thorough, and very frustrating.

If you want an 8GB machine Lunarmist, it will be much cheaper to go with AMD. FB-DIMMs are much more expensive than DDR2 right now. Specifically they are at least 2x the price / GB of the DDR2 DIMMs. 2.5x seems to be more common though.

4x4 is an attempt by AMD to deal with Intel on the highend now that Conroe is out. Since their architecture scales much more easily to multiple sockets they're saying they're going to release consumer 2-socket systems that use regular (not registered DDR2), in motherboards that aren't crazy...

I mostly agree with you Merc. OTOH it does make a difference for some photography applications. Batch converting RAW files is still a long way from being the instantaneous process I'd like it to be and the X2's could well be noticeably better values than the Core 2 depending on the effects of...

Intel's new chips aren't perfect. Apparently, they lose some functionality in 64-bit mode. Macro-ops fusion has to be shut off with 64-bit instructions. Also the instruction fetch from L1 cannot, in some cases, fetch 4 instructions per cycle in 64-bit mode, rendering Core 2's widened...

Many can be configured to boot properly. You only need to plug a keyboard & monitor in the one time, and set the old "Halt on no errors" or some such. Most boards I've encountered have it buried in the BIOS somewhere.

Forgot the linky. Lower resolution LCD is the biggest drawback I can see. I don't personally care about that too much though. The battery might be a little worse too which would be unfortunate (it could also be better). The predecessor to the F30 was legendary for its battery life.

The just announced F20 is a smaller, slimmer version of the F30. Should be great.

Is there a free / simple way to accomplish the same thing without having the DynDNS URL show up? Is there another way I should be going about this?

So when people enter the domain name that you want to use for your site, david.tweakt.com, the lookup forwards them to david.dynds.com which gives them your dynamic IP address? And you can set this referal up with the company you registered the domain name with? Forgive my ignorance. If I got...

Was it Maxtor drives that for sometime wouldn't be recognized if they were set to CS & were the only devices on the cable. Or was it that they wouldn't work in Master if they were the only devices on the cable. Bah, I can't remember. Took me a couple of hours of fiddling before I figured that...

It's big advantage is 6 SATA ports & dual, onboard GbE. For most people neither are that important I don't think. Personally, I think it's very handy. I need two GbE controllers per fileserver because of the way I segment my home network. And 6 SATA ports allows me to build better...

LOL. I too have experienced the magical disappearing Vodka bottle. By the way in the case of "Holy fucking shit, Batman!" fucking isn't a verb. I forget the grammatical term for using a verb as an adjective by using that particular tense, but that's what you did there. What kind of shit...

I checked out the big ones: DynDNS No IP Zone Edit I was wondering if it was possible to get free dynamic DNS service for your own domain name instead of one of their subdomains. Does anyone have an advice on this? I suppose I could run my own DNS server at one of those subdomains and use...

Hidden directories on Unixes start with a period. You can see them with: ls -a In your home directory there will be a lot of those .anapp directories containing user-related data. I don't have Thunderbird installed by I'll bet your mail is in a subdirectory under...

I got new cables. Everything seems to be fine now. The RAID5 array is syncing at over 65MB/s which is quite nice. Shouldn't take nearly as long at this rate. I guess it was going so slow because of the bad cables. Happy times.

Bah. Cables. All 3 are bad. I have 5 more of these I bought & I have a feeling they'll all be pieces of crap. I checked and NCIX doesn't sell "Generic SATA cables" anymore otherwise I would link to them and tell you all what pieces of crap they are. I can't even vent violently in the...

I finally had some spare time to do some hardware testing. All the disks are good. So far it's either bad cables or bad motherboard headers. I hope it's the former. The latter would be irritating to say the least... I would not be enthused to be down a server for however many months it'll...

Prime's are just fixed focal length lenses --i.e. they can't zoom. Because they don't zoom at all they're simpler to build, lighter, smaller, and often offer higher quality. Back in the day prime's were significantly superior to zooms in image quality. Advances in lense making have however...

An article on the Register has slightly more useful details on graphics memory requirements for Vista's Aero. I have no idea if XGl or AIGLX (the linux 3D rendering GUIs) have similar memory requirements. Details: * 64MB of graphics memory for a resolution below 1,280 x 1,024 * 128MB...

Ya, I'm still using CRTs for photo editing. Big, nice LCDs still have enough real disadvantages, not enough real advantages, and too much cost to have pulled me in yet. Everytime I think about how little I'll be getting for my money compared to what I already have, I pass. I'm beginning to...

By the way, I stuck with Matrox before (had strong deja vu typing this post). The X1800XT is highly recommended on a bunch of sites, but the prices in Canada are still in the stratosphere everywhere that I regularly buy (NCIX & Robotnik). Right up beside the 7950GTX2 low profile jet engine.

I'm looking for a new video card to drive my CRTs. I run them at 1920x1440, so the card needs to have good analog output. I've always used Matrox in the past, but with 2D in most OSes being rendered using the 3D pipelines nowadays, I've realized I'm going to need a decent 3D card one day. I'm...

It's certainly a bitch. It's worth mentioning that a single-disk rebuild from a failure, is quicker than syncing the whole array which you only have to when you create it. In the future, I'm not even going to bother with anything involving striping. I'm just going to add disks as I need them...

That's really handy Merc. It makes my life easier.

Small update. I have repartitioned the disks in the array so that all the partitions involved are exactly the same size. The array was syncing for three days and then the power went out and it had to restart. It's been going for about 30 hours now, and is at 47.5%. Should be done in a couple...

It's definitely a thought that was on my mind Merc. But one disk seems to be working. This is also on the onboard SATA, which works correctly with the same kernel and kernel configuration on another identical box. Someone on the Gentoo forums (where I posted when I thought it was a software...

P.P.S. Yes, the RAM is okay. Used this system for a year now & Memtested it again when everything started going to hell.

Hmmm. 2 of my kernels no longer boot. Lucky I just put a third testing one on the boot partition. They freeze on Starting lo... There's something about this... I can just tell it's going to be hell to figure out.

I was installing a new software RAID 5 (linux) in a fileserver of mine. I've done this twice before. I managed to partition the disks just fine. I successfully built the array once using mdadm --create --force (my third attempt), but every other time it gets built, 3 out of the five disks are...

Ya, that sync feature is exactly what the doctor ordered.

One the subject of Dell, I have a particular, specific gripe about those all-too-generally-sucky computers --although I'll agree it's hard to single out anything in particular for especial-suckiness in such a quantum singularity of suckiness: 1. Dell cases -- They use non-standard connectors...

Especially a 4 socket server. I think so far Dell only plans to use them in their 4-way servers. Despite Core 2's strengths, Opteron will almost certainly still beat Intel's new chips in the 4-socket arena.

Shogun is a classic paugie. Absolutely terrific. I've read it more than half a dozen times over the years. I've also read James Clavell's Gai-jin. Not as good, but very enjoyable. I've currently got a bit of a line up of programming books, which will keep me from more enjoyable reading for...

Both the NVidia and ATI integrated graphics available for AMD chips are significantly superior performance-wise to their Intel equivalents. They're also cheaper.

Thanks for coming out. You sure convinced me of one thing: your opinion is never going to be valued by me.

I definitely see purple.