Quindor

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Everything posted by Quindor

  1. Quindor

    Cable Connector Quiz

    10 out of 10. Woohoo, fun test!
  2. Too bad the sledge hammer is not an option. It's such a wonderful multipurpose tool and relieves stress too! Well, as continuum and I suggest, I think dban would be the best option for you. Recovering from a full dban pass will be incredibly hard, if possible at all. And will leave the disk reusable and in fine condition. Anything you would want to try with magnets or other form of outside influence would almost certainly render the disk itself impaired and not re-usable anymore. So look at it like this : The data has to be gone forever, whatever happens : Dban it, thrash it and then burn it. Actually MELT the platters of the disk, only way to be sure The data has to be gone 99,99% certainty, but I wish to re-use the device : Run a full Dban on it. Actually submitting this to mythbusters would not be a bad idea. See if they can recover from a hammerd disk, or one that is frozen, dunked under watter, etc. etc.
  3. Quindor

    TLER / CCTL

    My 7x 2TB samsung disks should arrive tomorrow. Sadly, I did not want to wait any longer for anyone else to test it. I will certainly share my experience with them, maybe post some benchmarks, etc. (I'll make a different topic for that). Sharing my bootstick. Hmm, I'll have a go at that. I'll make a backup using "DD" and then zip it to see how big it becomes. Off course, it will only be useful if your using an adaptec card (2 and 5 series). Otherwise it's almost easier to create a new one from scratch, integrate your drivers and admin console (mine boots the adaptec agent so I can connect to it from a different host to manage the adaptec itself, which cannot be done from VMware). Don't expect too much from it. It's quite a crude installation. Just a full install, which I set to runlevel:3 to not boot the graphical UI and then run some scripts in the background and reboot again. Oh, and I also compiled the newest SVN of smartctl on there. That worked for me, so I stuck with it! What kind of raid card are you using?
  4. I think you will need to pick up a specialized magnets. I've tortured disks in the past by putting my server right flush next to the back of my rockford fosgate DVC 12" Stage 3 woofer, pound it for two hours, etc. but nothing ever happened to the disks and they worked fine. Not to say they didn't suffer at all, if I had to guess, it's not the best thing to do to guarantee a long lifetime of the disk. But still, that magnet is HUGE (5KG or so?) with about 50Amps of power running right into the amplifier (500Watt RMS/1000 Peak). And being about 10 cm's from it (disk to back of woofer) caused no damage that could be detected. So you might have a hard time with that. Personally, when I do work for clients on rented servers for clients (I'm in the backup world and also provide restore tests for clients), I use "DBAN" to erase the drives securely. I have it on a memory stick, boot the server from it, type "autonuke" and leave it for a day or so. Works nicely on DL380G4/G5/G6 , etc. just a tip, if you might be inclined to go a bit different direction to ensure data destruction. Off course, last resort, buying a big sledge hammer will also fix your problems within seconds!
  5. Quindor

    RAID0 scaling

    Hmm, interesting but difficult to answer question. It will be fully determined by the load and also how well NCQ on the disks is implemented, etc. From my experience the 3805 is a pretty good controller, so with magnetic disks it won't become a bottleneck really quickly (in the random read department). In the ideal world you could take the random read of a single disk and multiply it by the amount of disks you have. Off course we all know that won't work. But let's take 75% and add that on per disk you add. I think you could get a pretty good estimate out of that. RAID is actually ok doing "smallish" simultaneous reads. All disks in the RAID can function parallel of each other, serving up different requests. It's only when you get into the parallel big streams that other forms of disks (single disks, etc.) become faster.
  6. Quindor

    Hard drives for servers

    Web servers in general profit greatly from using high spindle speed HDD's or SSD's. This is because the access time is greatly shortened from a regular 7200 rpm disk. Since a webpage consists mostly out of small images and generated php code, this can significantly enhance the speed your web page gets served in high-load environments. Most of these benefits will only become evident in high users/high concurrency and having a very large website environments I think. Otherwise your normal memory will cache most of it, and negate the advantages of a faster disks or SSD. High spindle speed disks have traditionally also been build a bit more sturdy, to handle 24Hr operation and higher loads. Also a SAS of FC have a bit more sophisticated interface which can handle a larger queue depth, etc. So it all depends on your need. But you can use these rules to figure it out a bit. Lots of small reads or writes SDD = top, otherwise high spinle speed disks Large sequential streams Low spindle disks are fine, unless there will be concurrent streams. NCQ can fix that a little bit.
  7. Quindor

    RAID0 scaling

    I own a 3805 also. It's a pci-e x4 board, which means you get 256MB/sec (x1) times 4. So that would mean 1024MB/sec max in bus throughput. Only way to get something faster is getting a x8 card (5805 for instance) or one of the newer SAS 6GB pci-e 2.0 cards. Intel ICH's since version 8 or 9 I believe are also VERY good at throughput and quick controllers in general. They also do not have much bandwidth constrictions in bandwidth because of the integration with the motherboard chipset in a very good way. No bus constrictions. I once had 8x1TB drives hooked up to the card. The raid processor (500Mhz Intel 80333) on it is limited to about 400MB/sec max doing parity. Reads where about 600MB/sec max. Running raid-0 the processor won't limit it and I think the max you'll be able to get form the card is about 600MB/sec. I am not on that computer right now so I do not have the benchmarks at hand, but I'm pretty sure 600MB/sec is about the max for the card. The 5805 I also own has a MUCH faster processor, which can do about 1000MB/sec parity with max 1400 reads (I believe, don't have the hardware to test to that extend). Raid-0, with a good/decent controller should scale almost linear I believe too. 80%-90% is a good estimate. Further then that, the amount of connections on the board do not really matter. The ports can actually deliver the bandwidth, just the hardware behind it cannot. If you start using port multipliers, the ports will really deliver what they are specked at. So a x4 uplink to say a array with 48 disks, will actually saturate the 1200MB/sec bandwidth the cables/connection can deliver. If your raid card can off course.
  8. Quindor

    TLER / CCTL

    Edited the post. Should have been ",70,70" indeed. Also edited the part where it states that there is no other difference. That was a bit of a too harsch statement. Setting this value does not give you a RAID drive in firmware or hardware (more durable, specefically tuned), it only resolves not being able to use the drive in a RAID. Quite right you are.
  9. I have a 3805 and also use the 1 to 4 cables to connect my six WD500AAKS disks. In the beginning I also think I noticed the problem you describe. I don't use any drive cage or something like that. Just direct connections (they are the connectors in which you then connect power seperatly into the connector itself). But, with the newest firmware updates and fidling with the cables a bit, I've never seen the problem return. They hit 300MB link every single time. So I never really investigated what could be wrong. Sorry that I can't really help, but still. Adaptec support sucks to be honnest.... good luck with your problem! Q.
  10. Quindor

    adaptec RAID 3805

    Hey People, Does anyone have anything to say or a review to point to for the adaptec RAID 3805 controller? I think for the current price point ~500$ it is the best controller money can buy? Gives you 8 ports, full SATA300 compatability and SAS to boot. 128MB or 256MB cache (noted differently everywhere). Gives you all the RAID levels you could dream of and well, just looks damn good. In my opinion, they offer more then Areca (ARC-1220ML) of Promise (Supertrak EX8350). Also wondering if the controller (or any of these controllers) support MAID. I'm building a home server and I know that when using software RAID I can use the operating systems power management to spindown the disks when they are not in use. No clue how well this works with hardware controllers and if they even support it. Hoping anyone has any idea! Quindor
  11. Quindor

    adaptec RAID 3805

    Hmm, how very interesting. Dare I say he gets quite different results? It seems everything he tested, is slower then my results? Be it I/O or raw disk speed. During some tests where my controller and 6! disks hit about 400MB/sec read (66MB/sec, counting the parity disk, without it's about 80MB/sec per disk), he only comes up to 200MB/sec (33MB/sec counting parity disk, without it's 40MB/sec) in RAID5? Certainly a raptor can do more then 40MB/sec average read! And read doesn't even need the proc. to be fast? No parity needed. Writes also greatly suffer it seems. Using ATTO or HDtach I get up 280MB/sec and close to 300MB/sec... while he only gets about ~160MB/sec. I'd call that a major difference. Maybe the linux drivers are less polished then the windows drivers? (I used Windows 2003 R2 SP2 for all tests). And MichaelMR2, let me know where I can get all the stuff I need for the iometer, and I'll run them on my (now fully filled) array! Q.
  12. Quindor

    adaptec RAID 3805

    I just wanted to add. This server was built to replace my old firewall and file storage server. I'm using the RAID5 for backup and storage purposes. Using truecrypt to secure the data. The old server was fine, but this server replaces both the storage and firewall servers. Which, together used up to 500 watt idle on average. The new server uses about 125Watt on idle average and is faster with everything plus using new components. When all my calculations are correct, I should have the costs brake even in about 1,5 year! Experiment I'm running now is using a ISA2006 server in a VM on this server. So far it actually seems to function quite well, to my surprise. But the 125Watt was very important to me, since this server is on 24H. This is also the reason I did not use server hardware this time, my old storage server was a Dell Poweredge 1800. Q.
  13. Quindor

    adaptec RAID 3805

    Okay, I compiled all the screenshots into png files and the naming on them should make obvious which results are which. You can download a zip file here. Have fun with them. Personally, I feel this card is equal to the current Areca cards around. Since it has the same intel processor at the same speed, the results are quite consistent. Adaptec provides a nice array management utility with it, which provides enough, but not all information. I have not been able to view the SMART information of each seperate disk for instance. I'd like to be able to encorperate that into my monitoring application (Zabbix). I could then make a graph of the temperature or error count for instance. Some graphs I'd like to include indivually, so that topic people can see them without needing to download the whole zip file. ATTO Bench, using a 256KB striping on the Adaptec and using a 64MB file, to test caching speeds: ATTO Bench, using a 256KB striping on the Adaptec and using a 256MB file, to disk real disk speeds: ATTO Bench, using a 256KB striping on the Adaptec and using a 256MB file, to disk real disk speeds, also enabled advanced disk performance in windows and made the queue depth 10: HDtach, 256KB stripe size, short test : And finally HDtach, 256KB stripe size, long test : Personally, I think it works just fine. And I'm quite happy with that. Have had other setups, which have given me problems in the past. Have done much real life stress tests yet, but as stated, the zip file includes more tests. Including file creating benchmarks and dual file creating benchmarks (MAJOR fragmentation creator. ). If anyone wishes anything else, let me know. The disks have been filled with my data allready since the array seemed to check out just fine. Recieved no errors or problems what so ever. Also did a quick init and a full init, no difference and no errors. All of this was done on a Asus M2A-MV desktop board with an Athlon X2 4800+ with Windows 2003 x64 R2 SP2. Cool and Queit enabled. Clean install on a mirror (windows) partition on 2xWD32000AAKS. The raid controller had 6xWD5000AAKS.
  14. Quindor

    adaptec RAID 3805

    Compiling the pictures (atto and such) now, should be here in a few hours. Q.
  15. Quindor

    adaptec RAID 3805

    Hahahah, figures. I buy the controller and have it in my hand and somebody posts benchmarks with it. Good find! I searched, trust me! Well, I have everything in the case right now and to my great relief... the system actually boots!!!! I was quite worried that inserting the Adaptec controller into my Asus M2A-VM would disable the onboard graphics. Or create bios problems, or well, something. But, as far as I can see, it synced to x4 and the onboard graphics are still working just fine! Heading off to the store right now to pick up my 6x500GB SE16 WD and 2x320GB SE16 WD disks. As said, I'll keep you guys posted. If there are any requests for benchmarks or anything else, let me know. Q.
  16. Quindor

    adaptec RAID 3805

    Ah, well, just recieved the controller (took some pictures). It's the first of 2 delivery's I should recieve today. The rest of the components for the new server I will pick up tommorow. First thing that has allready gone wrong. This controller is available in a 128MB version and a 256MB version. It was stated on the website that this was de 256MB version and I also included this in my order notes. But offcourse, I have recieved a 128MB version, a very nice shiny brand new 128MB version... but still. I was allready afraid that would happen. I'm not even sure if the 256MB versions are even shipping yet, haven't been able to find it anywhere. Also the PDF's and adaptec themselves are very vague about it. I guess I'll make do, if the performance isn't what I expected, it's just going to go back. Let's just hope my cables arrive today and that tomorrow all my equipment is ready at the suppliers.... It's hard to get your stuff on time, I started with one supplier and ended up using 4, just to get it before the weekend. I'll keep you guys posted! Q.
  17. Quindor

    adaptec RAID 3805

    Hmm, that's odd? I thought they where IOP 333 based? I think you might be confused with the 3085 and the 3805 there. The 3805 is 500Mhz with either 128MB or 256MB cache. The 3085 is 800Mhz with always 256MB cache. Why these differ, I have no idea, but that's what most sheets state. All the higher models (12 and 16 port) also have 256MB default and the 800Mhz proc. I orderd the 3805 controller with 256MB cache on monday, should arrive somewhere next week (including my complete new server). Orderd 6x WD5000AAKS disks along with it, so I should be able to provide you with some benchmark figures if wished. Anything else then HDtune, HDtach and ATTO wished? Let me know, I'll preform them for you (Windows 2003 compatible please. ). I always take a few days to test out the new hardware before going into production with it. So anything you want me to throw at it, let me know. Q.
  18. Quindor

    adaptec RAID 3805

    How interesting. I had not noticed that controller. So I guess that throws 2 or maybe 3 (counting the areca) SAS controllers into the equasion. Sadly enough, any other infor then from the manufacturers themselves, has not turned up. The LSI and the Adaptec look suspisiouly the same though. Q.
  19. Quindor

    adaptec RAID 3805

    Sure looks like a sweet controller indeed! Just worried it's going to cost over de 500$ I'm wanting to spend on the controller and the adaptec seems to hit the spot just right. The Areca I have heard good words about, but it seems to be a bit older model and also does not have SAS. The Promise I've read bad things about, running hot and having slow performance. Also no SAS support. Adaptec is known for the SCSI cards and robust drivers. Their management tools, etc. So my question still stands, I'm sure the SAS ARC1680 will be the bomb, but it isn't here yet and when it will be, it'll most likely be more expensive. Quindor
  20. I recently bought an external 2.5" USB+1394a enclosure and an hitachi IC25N080 the device reports itself as "IC25N080 ATMR04-0 USB Device". It's working just fine. USB and firewire, everything is working just perfectly fine. What I wanted to do though, is to install Windows XP or Windows 2003 on this disk. And boot from it, like the system would have no internal disk, and just use this as the disk. I remember doing such with my Syquest Syjet, and having Windows 98SE on it and Linux and such, which worked like a charm and was quite handy. Problem is though, when I try to install either of the microsoft products, it tells me it doesn't have a storage driver for the disk and cannot be used for installation. IT does this right after the partitioning part of the setup, where you can select where to install too. Not very nice. I thought it would make a very nice bootable installation for when I'm screwing with a test system or my system, or to recover things and such. Anybody have an idea? My thoughts would be I would need an "SCSI" type driver for the drive, and not using bios emulation (the bios tries to boot from it just fine, windows just refuses to use it). Anybody have any more experience with this? Any info or thoughts would be welcome. Kind regards, Quindor
  21. Quindor

    Booting XP from usb enclosure

    Hey, hmm Hadn't checked this thread in a bit. Thank you for the advice!!! I'll be sure to give that a go! Would be fantastic if it could be tricked that way! I guess I'll just install it on my normall harddrive, and then use ghost or some other tool to move it to the external enclosure and see what happens! Thnx's! Quindor
  22. Quindor

    amd 64 board for my older fibre cards

    wow! Yes, that abit boards look nice! Hmm, too bad it's about a week too late though. Called dell to ship me a Poweredge 1800 Dual 3.0Ghz now. As fileserver for @home, got a good deal though! Oh well, stupid hardware vendors, they should have built a board like this Abit one months or even years ago!! Oh well, I guess the dell is more "upgrade proof" since it has all the pci busses ever made. Thnx's for the link though, some lanparty friends of mine whom wish to build servers will be thankfull! Quindor
  23. Been trying the same thing, or better yet, wanting! Sadly enough, no go.... I used to have a Sygate Syjet 1.5GB which was connected through SCSI, it was heaven, booting an OS of a disk, and when popping in another, booting another OS all together. But this was SCSI. Windows 2000/XP/2003 do not have a storage driver (with boot functionality) for USB devices (either 2.5" or 3.5"). Linux does though, manny linux distributions will function fine (be carefull where it writes its file table, bootloader, etc. best to disconnect ALL disks before installing and reconnect after the install). I have been wanting/wishing the exact same thing. Have a 80GB portable HDD always with me for data and stuff. I'd be great if I could sacrifice about 1.5GB for a always ready boot system of XP. XP PE or 2003 PE should be able to do it I think.... But right now, I think we're in the cold. Quindor
  24. Hmm, these are quite subjective network tests if you ask me. :S This is more, windows file system / server / ntfs / fragmentation / cache buffer / network speed testing, all that together that is. Microsoft has a nice testing utility if you really wish to measure your NETWORK bandwith over your nic. http://research.microsoft.com/%7Epeteku/netspd/default.aspx . It's not official, but his white paper really suggests this guy knows what he's doing. Myself I have my ftp server, and my workstation. My workstation uses a CSA based intel 1Gbit, and my FTP uses an Intel Server Pro1000 fiber nic. I've easily read with speeds above 50MB/sec from them. Mind you btw, that windows file sharing is a REALLY bad thing to use while performance testing, it's as slow as I don't know what. Over a normall 100Mbit you'll only get like 8MB/sec. IIS however using FTP will give you 11.56MB/sec is all your equipment is in order. And as said, over 50/60MB/sec using FTP/IIS. That is the max of the PCI bus of the server (disk -> pci -> cpu -> pci -> network card, pci total=133MB/sec, effective about 110/120MB/sec). I see I'm not the only one saying this now. Anyways, Succes. Quindor
  25. Quindor

    Configuring 8 Wd74gb's In Several Raids?

    A good (Cheap) mobo with normall P4 chip and normall dual channel memory but WITH pci-x (66Mhz = 512MB/sec) is the Supermicro P4SCT+ and the P4SCT+II (with agp). Supermicro also has nice sata controller cards and sata drivebays. Quindor p.s. If you want good storage, I'd wait a little bit for NCQ to be fully supported. The hardware is just now comming out (controllers and drives).