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  • ??????Sun ZFS Storage Appliance?????????????????·?????????

    - by Norihito Yachita
    ??????????????·????????Sun ZFS Storage 7320 Appliance??????????????????????????????????????IaaS(Infrastructure as a Service)???????????????????????????????????????????????????????? ???????????11?15?????????????4,000?????????????????????????????????????????????????????????·??????????????????????????????? ???????????????????????????????????????????????????????????????????????????????????????????????????InfiniBand???????????????????Sun ZFS Storage 7320 Appliance?????2011?5??????????6????????????????????????Sun ZFS Storage 7320 Appliance???????·???????

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  • SAS Expanders vs Direct Attached (SAS)?

    - by jemmille
    I have a storage unit with 2 backplanes. One backplane holds 24 disks, one backplane holds 12 disks. Each backplane is independently connected to a SFF-8087 port (4 channel/12Gbit) to the raid card. Here is where my question really comes in. Can or how easily can a backplane be overloaded? All the disks in the machine are WD RE4 WD1003FBYX (black) drives that have average writes at 115MB/sec and average read of 125 MB/sec I know things would vary based on the raid or filesystem we put on top of that but it seems to be that a 24 disk backplane with only one SFF-8087 connector should be able to overload the bus to a point that might actually slow it down? Based on my math, if I had a RAID0 across all 24 disks and asked for a large file, I should, in theory should get 24*115 MB/sec wich translates to 22.08 GBit/sec of total throughput. Either I'm confused or this backplane is horribly designed, at least in a perfomance environment. I'm looking at switching to a model where each drive has it's own channel from the backplane (and new HBA's or raid card). EDIT: more details We have used both pure linux (centos), open solaris, software raid, hardware raid, EXT3/4, ZFS. Here are some examples using bonnie++ 4 Disk RAID-0, ZFS WRITE CPU RE-WRITE CPU READ CPU RND-SEEKS 194MB/s 19% 92MB/s 11% 200MB/s 8% 310/sec 194MB/s 19% 93MB/s 11% 201MB/s 8% 312/sec --------- ---- --------- ---- --------- ---- --------- 389MB/s 19% 186MB/s 11% 402MB/s 8% 311/sec 8 Disk RAID-0, ZFS WRITE CPU RE-WRITE CPU READ CPU RND-SEEKS 324MB/s 32% 164MB/s 19% 346MB/s 13% 466/sec 324MB/s 32% 164MB/s 19% 348MB/s 14% 465/sec --------- ---- --------- ---- --------- ---- --------- 648MB/s 32% 328MB/s 19% 694MB/s 13% 465/sec 12 Disk RAID-0, ZFS WRITE CPU RE-WRITE CPU READ CPU RND-SEEKS 377MB/s 38% 191MB/s 22% 429MB/s 17% 537/sec 376MB/s 38% 191MB/s 22% 427MB/s 17% 546/sec --------- ---- --------- ---- --------- ---- --------- 753MB/s 38% 382MB/s 22% 857MB/s 17% 541/sec Now 16 Disk RAID-0, it's gets interesting WRITE CPU RE-WRITE CPU READ CPU RND-SEEKS 359MB/s 34% 186MB/s 22% 407MB/s 18% 1397/sec 358MB/s 33% 186MB/s 22% 407MB/s 18% 1340/sec --------- ---- --------- ---- --------- ---- --------- 717MB/s 33% 373MB/s 22% 814MB/s 18% 1368/sec 20 Disk RAID-0, ZFS WRITE CPU RE-WRITE CPU READ CPU RND-SEEKS 371MB/s 37% 188MB/s 22% 450MB/s 19% 775/sec 370MB/s 37% 188MB/s 22% 447MB/s 19% 797/sec --------- ---- --------- ---- --------- ---- --------- 741MB/s 37% 376MB/s 22% 898MB/s 19% 786/sec 24 Disk RAID-1, ZFS WRITE CPU RE-WRITE CPU READ CPU RND-SEEKS 347MB/s 34% 193MB/s 22% 447MB/s 19% 907/sec 347MB/s 34% 192MB/s 23% 446MB/s 19% 933/sec --------- ---- --------- ---- --------- ---- --------- 694MB/s 34% 386MB/s 22% 894MB/s 19% 920/sec 28 Disk RAID-0, ZFS 32 Disk RAID-0, ZFS 36 Disk RAID-0, ZFS More details: Here is the exact unit: http://www.supermicro.com/products/chassis/4U/847/SC847E1-R1400U.cfm

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  • What kind of storage do people actually use for VMware ESX servers?

    - by Dirk Paessler
    VMware and many network evangelists try to tell you that sophisticated (=expensive) fiber SANs are the "only" storage option for VMware ESX and ESXi servers. Well, yes, of course. Using a SAN is fast, reliable and makes vMotion possible. Great. But: Can all ESX/ESXi users really afford SANs? My theory is that less than 20% of all VMware ESX installations on this planet actually use fiber or iSCS SANs. Most of these installation will be in larger companies who can afford this. I would predict that most VMware installations use "attached storage" (vmdks are stored on disks inside the server). Most of them run in SMEs and there are so many of them! We run two ESX 3.5 servers with attached storage and two ESX 4 servers with an iSCS san. And the "real live difference" between both is barely notable :-) Do you know of any official statistics for this question? What do you use as your storage medium?

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  • Does cloud storage replicate the data over many datacenters if so it means i benefit content delive

    - by Berkay
    Let's assume that i want to use cloud storage service from one of the cloud storage provider, i got X gb structured and unstructured data and i will use this data as my contents of my interactive web page. And now i have some doubts about this point.I have many users and they are all visiting my web page from various countries.To be more specific first; does my data stored only of the Cloud Storage data center ? or Does my data replicated over many data centers of my provider? second if so; how can i benefit from content delivery network? (matching and placing users’ content nearest storage data centers)

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  • Best way to convert episodic DVDs for Windows Media Center?

    - by Roger Lipscombe
    I'm archiving my DVD collection. My goal is to be able to play them back in Windows Media Center. For feature-length DVDs, I'm using AnyDVD and CloneDVD, which is working well. For playing back TV shows (and other episodic content), I'm using Media Browser, which doesn't support a VIDEO_TS folder per episode. It expects the shows to be broken up into one file per episode (e.g. "Willo the Wisp - S01E12.avi"). For this, I'm attempting to use Handbrake, which, for extracting the episodes from DVD (or already-ripped VIDEO_TS folder), is working pretty well. The problem that I have is that the default x264 encoder over-compresses the resulting video stream, which results in hideous artifacts in animated shows. The aforementioned Willo the Wisp is a particularly bad example, because the original DVD is particularly "noisy". If I switch to using the ffmpeg encoder, the artifacts are gone in Windows Media Player, but I can't get the resulting files to play back in Windows Media Center. I see the first frame, and then there's an error message. I've installed the CCCP codec collection, but it doesn't seem to have made any difference. So: what's the best way to convert VIDEO_TS to individual episode files for playback in Windows Media Center?

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  • How can I disable the automatic switch to "library" mode in Windows 7's Media Player 12?

    - by matthews
    Whenever I plug any USB device into my computer while running Windows Media Player 12 in Windows 7, it will automatically swtich the player from the Now Playing mode to Library mode. This is intended to faciliate syncing between Media Player and MP3 players, but it happens for any USB device. I'd like this to not happen since it's infuriating to see this take place while I'm watching something on a separate screen in Media Player just from plugging in a USB key. This has nothing to do with Windows autorun, and nothing to do with versions of Windows pre-7. And no, switching to some other video player is not an option; I've tried them all, none are as good as stock Media Player in 7.

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  • Can I change the image associated with my computer when it's sharing as a media server?

    - by animuson
    I currently have my computer setup to share its videos, music, and pictures as a media server so I can easily access all of my stuff from my PS3 and play it on my TV (since I can't connect my computer directly to my TV). However, my dad also has his laptop setup as a media server, for whatever reason, and both of them use the same "Windows Media Player" icon in the list. It's not a huge issue, but I was wondering if it was possible to somehow change what icon gets sent out by your computer to other devices when it's acting as a media server, and how?

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  • Is there a way to explore my WHS files via Xbox 360's Media Center app?

    - by bangoker
    I know its a "Console" question but its really more of a Media Center Extender question! I can access the data through the Video/Pictures options, but not through the Media Center App. Also I can only see the videos that are directly on the Videos folder on my WHS, but not any of the subfolders. Same thing in my Laptop, if I connect to my WHS through Media Player it will only show the videos on Videos but not any other sub-folder, but if I open Media Center I can then connect to server and see all the folders.

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  • How do I turn a shared computer back into a shared media drive?

    - by Brian Green
    There is an external hard drive that is set up as a shared media device for a TV. I tried to hook up my the library on my desktop as a shared media drive to watch movies from my computer on the TV. It worked for a little bit but about 5 seconds after getting into my computer the tv went blank and I couldn't access the external hard drive any more. When I checked on my computer the Hard drive was no longer a shared media device but now it was a computer on the network. How do I fix this and turn it back into a shared media device so I can access it on the TV?

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  • Can Spotlight or Media Browser index metadata contained in iPhoto or Aperture in Mac OS X?

    - by jaydles
    It seems silly to go to all the trouble to assign "Face" data to thousands of photos, but not make it possible to use that data to locate them outside of that application. Is there any way to get Spotlight or Media Browser in OSX (Snow Leopard) to index and recognize metadata (Faces, Places, etc.) contained in iPhoto or Aperture? I know that that metadata is stored in the "library" database for Aperture/iphoto, rather than on the actual files (which is too bad). And I can even potentially see why it might create challenges for spotlight to use it, since spotlight is presumably a file index system, not a media organizer, but surely the media browser used across the other OSX apps is intended to use it? The media browser's whole purpose seems to be to let you easily locate and reference the items you organize in one of the ilife apps (iphoto or Aperture, in this case) from the others (say, imovie, or Mail). It's particularly vexing since the photo app on the iphone sorts by faces by default. Additionally, the mac-based media browser does access smart albums and folders, so you could establish a workaround by creating a smart album for each "face" or place, or tag, and access them that way, but it seems like there must be an easier way. Am I missing something?

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  • How do I replace a harddrive that is in a two-way mirror storage space on Windows 8?

    - by Jon
    I have a storage space in Windows 8 doing a two-way mirror on three harddrives. The sizes are 297GB, 189GB, and 70GB. I would like to replace the 70GB HD with a larger one. My thought was to remove that drive from the space via the Storage Space control panel, shutdown, replace HD with bigger drive, reboot, add new HD to the storage space. I can't find any options to remove a HD from a storage space in the control panel. Should I just shutdown and swap out the small drive or is there another process for safely replacing the old HD? (By the way, the old HD is still operational.)

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  • Is there any way to see the contents of a device via windows media player/sync?

    - by snorfys
    I've got a sansa clip mp3 player and an htc touch pro 2 phone that I put music/audio books etc. on. Putting stuff on there is easy peasy I open media player 11, go to the sync tab at the right and drag media to it. The problem is seeing what's already on there and removing anything I no-longer want on there - I have no way to see that aside from browsing via explorer. Both devices move media around to specifc folders so it's a bit annoying. Is there any way to do what I need in media player or is there any other good and free alternatives that will?

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  • Why Windows Media Center (Vista 32-bit) unable to record TV Series?

    - by Alex R
    I can record individual shows just fine, but trying to setup the recording of a Series throws an error (something like, "unable to schedule, try restarting Media Center", pops up in the bottom right of the screen). Trying to access the "Other Showings" menu causes Media Center to crash ("check for a solution online" dialog comes up). The machine is a fresh reinstall of 32-bit Windows Vista from the HP recovery CDs, plus all Microsoft updates and service packs. Hardware: HP s3220n, AMD X2 5000+, 2GB RAM, 300GB free space on disk. Media Center came bundled. The "Media Center update for Vista" failed to install (it says, not appropriate for my computer). Any ideas? Thanks

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  • Managing media using the Android MediaStore

    - by hgpc
    I manage the media (images, sound) of my app directly, reading and saving to the SD card. Should I be using the MediaStore instead? I'm not quite sure what the MediaStore is for, and the javadoc is not very helpful. When should an app use the MediaStore?

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  • How does a portable Thread Specific Storage Mechanism's Naming Scheme Generate Thread Relative Uniqu

    - by Hassan Syed
    A portable thread specific storage reference/identity mechanism, of which boost/thread/tss.hpp is an instance, needs a way to generate a unique keys for itself. This key is unique in the scope of a thread, and is subsequently used to retrieve the object it references. This mechanism is used in code written in a thread neutral manner. Since boost is a portable example of this concept, how specifically does such a mechanism work ?

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  • Azure storage - double decimal point ignored on save

    - by Fabio Milheiro
    I have a value that is correctly stored in a property of an object, but when I save the changes to the Azure storage database, the double value is stored to the database ignoring the point (7.1000000003 is saved as 711). Also, the property is changed to 711.0. How do I solve this problem? The field is already set to double in the class and the database table.

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  • Optimal xml storage engine

    - by nixau
    I'm considering optimal open source solution for storing xml documents with further querying on them effectively. Amount of data will be small. As far as I understand native xml databases might form a proper solution for my case. They obviously store xml documents in highly efficient way. It would be great to learn your experience. Any suggestions on proper solution? Have you got any experience employing xml storage engines in your apps?

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  • Image upload storage strategies

    - by MatW
    When a user uploads an image to my site, the image goes through this process; user uploads pic store pic metadata in db, giving the image a unique id async image processing (thumbnail creation, cropping, etc) all images are stored in the same uploads folder So far the site is pretty small, and there are only ~200,000 images in the uploads directory. I realise I'm nowhere near the physical limit of files within a directory, but this approach clearly won't scale, so I was wondering if anyone had any advice on upload / storage strategies for handling large volumes of image uploads.

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  • Simplest Azure Storage Manipulation possible

    - by Hurricanepkt
    I have the need to integrate some blob storage into an existing ASP.NET Mvc site my hope is to be able to just add some references and then just do puts and gets but I cannot find any simple example for how to do this (that hasn't been depricated to the point it no longer works) I have tried using StorageClient but CreateCloudBlobClient() doesn't seem to work.

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  • Right way to access the Google Cloud Storage bucket via Public API

    - by SyBer
    I'm trying the following request to access the bucket by using curl, via the public API: curl -X POST -H 'Content-Type: image/jpeg' -d @xxx.jpeg 'https://www.googleapis.com/upload/storage/v1/b/clips.eyecam.com/o?uploadType=media&name=x.jpeg&key=XXX' With XXX being the generated key in the Public API. However I'm getting an authorization failure: { "error": { "errors": [ { "domain": "global", "reason": "required", "message": "Login Required", "locationType": "header", "location": "Authorization" } ], "code": 401, "message": "Login Required" } } Seems the request is incorrect and does not pass the authorization key, any idea what would be the right form of the request?

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