Search Results

Search found 6552 results on 263 pages for 'recovery models'.

Page 60/263 | < Previous Page | 56 57 58 59 60 61 62 63 64 65 66 67  | Next Page >

  • How to recover zfs pool when root fs fails?

    - by user27138
    I have a FreeBSD 8.0 amd64 box w/ 1 ATA drive for system root and 4 SATA drives as a RAIDZ pool. The ATA drive isn't mirrored nor part of any pool, but also doesn't hold any valuable data (other then the system). How can I recover my zpool if this ATA drive fails for any reason, but assume my RAIDZ vdev SATA drives remain intact? Should I also use at least a mirror configuration for that?

    Read the article

  • Uptime concerns in case of AWS outage

    - by Aditya Patawari
    I am running an Elastic Load Balancer backup by 2 instances in different Availability Zones in US East. I am using Multi-AZ RDS as well. Ideally this should ensure that if one AZ goes down, it should not effect the app because everything is spread across multiple AZs. But the recent AWS outage took the app down for a long time. I am not sure how this can happen. It would be great if someone can point out what went wrong. Major question here I have is how can I avoid this in future? I can setup app servers across different regions or even providers and use DNS for load balancing but what do I do with MySQL? Read Replicas will introduce some lag which I would want to avoid.

    Read the article

  • Can't recover hard drive

    - by BreezyChick89
    My drive got corrupt after a thunderstorm. It used to be 1 partition of 2.5tb but now it shows 2 partitions. It's weird because 300gig free space is about how much it had before corrupting, but it was part of the first partition. I tried $ sudo resize2fs -f /dev/sdb1 Resizing the filesystem on /dev/sdb1 to 536870911 (4k) blocks. resize2fs: Can't read an block bitmap while trying to resize /dev/sdb1 Please run 'e2fsck -fy /dev/sdb1' to fix the filesystem after the aborted resize operation. sudo e2fsck -f /dev/sdb1 e2fsck 1.42 (29-Nov-2011) The filesystem size (according to the superblock) is 610471680 blocks The physical size of the device is 536870911 blocks Either the superblock or the partition table is likely to be corrupt! Abort? n .... Error reading block 537395215 (Invalid argument) while reading inode and block bitmaps. Ignore error<y>? yes Force rewrite<y>? yes Error writing block 537395215 (Invalid argument) while reading inode and block bitmaps. Ignore error<y>? yes ... A lot of these. I can't use e2fsck -y because the first question aborts if I say "y". If I put a weight on the 'y' key it fails because none of the errors were really fixed. I asked this question before and tried using gparted but gparted fails because the first thing it does is: e2fsck -f -y -v /dev/sdb1 giving the same error. The disk status says healthy. There are no bad blocks. This is very frustrating because I can see the data in testdisk and it looks like it's all there. I already bought another 2.5tb drive and made a clone using dd. The next step if I can't fix this is to wipe that drive and just move the data with testdisk, but it seems certain folders will copy infinitely until the drive is full because of symlinks or errors so it's also a difficult option. sudo fdisk -l Disk /dev/sdb: 2500.5 GB, 2500495958016 bytes 255 heads, 63 sectors/track, 304001 cylinders, total 4883781168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk identifier: 0x0005da5e Device Boot Start End Blocks Id System /dev/sdb1 * 2048 4294969342 2147483647+ 83 Linux sudo badblocks -b 4096 -n -o badfile /dev/sdb 610471680 536870911 badfile is empty I also tried changing the superblock with "fsck -b" but all of them are the same.

    Read the article

  • How do I recover JPEGs with no file size?

    - by Jill
    I downloaded some wedding photos into my external drive about a month ago. A total of 3 cards were downloaded into 3 different files. The first file lists all of the photos, about 600 images, but they have zero bytes. The other 2 files are fine. I can't recover the compact flash card because I have used it too many times since then. Is there any way to recover the images on my drive?

    Read the article

  • Question about getting information off an old HD...

    - by user37983
    Ok so my old cpu was a sony vaio. its kinda old and had xp on it. My gf thrashed it - the cd drive went and she tried fixing it by messing with the configurations bios etc. the actual laptop is really fried the keyboard doesnt work, etc. However the harddrive is still intact. I tried putting the HD in my new cpu (toshiba runnig win7) and it looks like its gonna boot up it goes to the screen with the logo and the status bar starts to load. then it flashes a blue screen for a split second, and goes to the black screen where it says windows did not shut down properly and gives options to (start windows normally, safe mode, safe mode with networking, safe mode with prompts) ive tried every option but it always goes back to this screen. I need to get into the hd cuz i have very important files. is there anyway?

    Read the article

  • What are my options for a disk with what seems to be a corrupted filesystem?

    - by CT
    I have a friend with an old Dell that will not boot into Windows. It has an IDE drive. It spins up. I have an IDE to USB device. I've attached the drive via that device to a working laptop. The drive does not mount. If I go into Disk Management I can see the drive but it will not initalize, says "Drive not ready." I've also booted into a linux live cd to see if the drive mounts, it does not. I am just trying to recover some pictures from the drive. The data is not important enough to send to a professional. The issue is more of a curosity on how to recover data if and when these situations would occur in the future.

    Read the article

  • Windows 7 just deleted 4 days of work

    - by Mat
    Hey! I'm just a bit about to freak out. I just finished a project and rebooted my computer. It didn't want to boot anymore so I had to use the Windows 7 system repair option. It ran for a minute and then booted up. Now most of my source code from the last 4 days of work is gone! Background: sometimes (most often after installing new software) my notebook won't boot up anymore. It will just show the little Windows 7 flag, but not read from the hard disk anymore. If I hard-abort and reboot then, it asks me whether to start Windows normally (which won't work) or to run "Windows startup repair". If I run it, it does some stuff for about two or three minutes and then I can boot Windows again. Usually after this, .exe files I added to the computer during previous days are gone - but other files so far were not touched. But now, after this happened, a whole bunch of ".as" (ActionScript source files) from my project are gone! Does anyone know where and whether there's a way to recover them?

    Read the article

  • I lost my CSS Codes of my important Website, Why?

    - by Hooshkar
    Very weird, i had opened notepad ++ and working on my CSS codes for my website, suddenly my little niece unplugged the computer, when i re-start the computer and opened again the same CSS codes file in notepad ++, so all i am seeing is "NULL NULL NULL NULL NULL NULL NULL" there is no codes, all lost. I opened the same CSS codes file in other editors and its all empty no codes.. is there a way to fix it, because it was my hard work. and what can be the cause? Thank you.

    Read the article

  • Use `dd` linux program to save / recover a disk's MBR

    - by Graduate
    I have an Ubuntu OS installed on my laptop. I want to install Windows 7 as well to another disk partition (I will do it by recovering it from a special partition on my laptop). After installing Windows, I want to recover my hard drive MBR to be able to load Ubuntu. I have a plan to use linux dd program: 1) (Before installing, perform this command in Linux) dd if=/dev/sda of=/home/user/mbr_backup bs=512 count=1 2) (after installing, load Ubuntu Live CD and launch this) dd if=/home/user/mbr_backup of=/dev/sda bs=512 count=1 3) Load Ubuntu on PC and re-configure the GRUB2 to be able start Windows I need your advice, I want to be sure I won't damage the disk (it's partition table).

    Read the article

  • How do I force an exchange database to become "active"?

    - by makerofthings7
    We had a catastrophic failure where all that remains is a single edb file. No backups. No log files. The database that remains is on the "passive" copy. The "active" copy is missing, but the server is active. The Exchange console reports that the edb file needs to be reseeded, however there is no source to reseed from. How do I make the "invalid" database file (missing logs) valid? How do I make exchange recognize this as a valid database to use as a primary?

    Read the article

  • How can I tell if my hard drive(s) have Battery Backed Write Cache?

    - by Riedsio
    How can I tell if my hard drives have a battery backed write cache (BBWC)? How can I tell if it is enabled and/or configured correctly? I don't have physical access to my server. It's a GNU/Linux box. I can provide supplemental incremental information/details as requested. My frame of reference is that of a DBA -- I have access and privileges, but (usually) only tread where I know am supposed to. :)

    Read the article

  • Can I move files from a laptop hard drive with a corrupt sector to a USB hard drive?

    - by Corey
    I have a hard drive that is on its way out and won't boot to Windows 7. The Windows partition takes up the whole disk. I thought I would try to recover some recent files that hadn't been backed up. Assuming the files are recoverable, how can I explore the drive that has the corrupt sector and transfer files to a USB hard drive? If it helps, the laptop is able to see the USB drive when choosing a boot order. Some searching lead me to WinPE 3.0, part of the Windows Automated Install Kit. Is that a method?

    Read the article

  • I have a bunch of CHK files on my USB Drive that used to be my stories that I saved on there. How do I get them back?

    - by Susana
    Ok, so I am not sure why, but my USB flash drive isn't showing all of my stories that I typed and saved. It might be because I removed the USB flash drive without ejecting it safely. All of the data was there on my flash drive, I just couldn't see it. The capacity was almost full so I'm pretty sure the data was there. So, when I decided to run and check to see if there were any problems, the computer found that there were. I think it found my files, but now they are CHK files and I don't know how to get them back. Can someone please help? This is my life's work here!

    Read the article

  • RAID 0 disk failure, how to recover the RAID?

    - by user7985
    Situation is this. A PC with 2 hard disks, in an RAID 0 Array. The electronics on one of the disks has failed. I can not find the same board for the disk (I've tried this, removed board from the OK disk, and the second, the damaged one, works fine). I've made an image with "dd" on linux on a new hard drive (same size, not same model) and now I get "Offline member" in the RAID config screen. Will I succeed to recover the data which is stored on the drives, any help, any experience with this kind of problem. And surly, I know it was stupid to put the disks in RAID 0 and store data on them :(

    Read the article

  • How to save your Linux state (suspend to disk) periodically to recover from crashes?

    - by WoLpH
    One in a while my laptop crashes/dies because of a bad/empty battery, crappy wifi driver or whatever other reason. For a while I've wondered if it's possible to force Linux to periodically save the state (like vmware snapshots) to disk so you can restore from that with possibly slightly outdated work but at least with all of your apps open in the same state you've left them. I don't really see the point in having to boot everything from cratch constantly, although KDE saves your state on logout, that doesn't happen periodically (by default) either. It would make it much nicer to recover from your crashes if your ram was written to disk periodically. Anyone know if there's a system call to do this without also shutting down the machine? Even a manual button to save the entire state would be nice.

    Read the article

  • Recover snap server data

    - by Ugg
    Hi I have a snap server 110 the machine powers on ok and the healthcheck passes but unable to connect no responce on the assigned ip or any ability to reach the device via the snap server manager. Believe the device is powering on but not loading the OS. Tried pulling the disk running and hooking up to a windows PC via USB, and using disk internals linux reader I am unable to access two of the partitions. ( one of which is the large data partition). There are three partitions on the the drice only one is accessible via Linux reader. I am looking to recover the data of the drive can anyone suggest a DIY option please?

    Read the article

  • HLSL/XNA Ambient light texture mixed up with multi pass lighting

    - by Manu-EPITA
    I've been having some troubles lately with lighting. I have found a source on google which is working pretty good on the example. However, when I try to implement it to my current project, I am getting some very weird bugs. The main one is that my textures are "mixed up" when I only activate the ambient light, which means that a model gets the texture of another one . I am using the same effect for every meshes of my models. I guess this could be the problem, but I don't really know how to "reset" an effect for a new model. Is it possible? Here is my shader: float4x4 WVP; float4x4 WVP; float3x3 World; float3 Ke; float3 Ka; float3 Kd; float3 Ks; float specularPower; float3 globalAmbient; float3 lightColor; float3 eyePosition; float3 lightDirection; float3 lightPosition; float spotPower; texture2D Texture; sampler2D texSampler = sampler_state { Texture = <Texture>; MinFilter = anisotropic; MagFilter = anisotropic; MipFilter = linear; MaxAnisotropy = 16; }; struct VertexShaderInput { float4 Position : POSITION0; float2 Texture : TEXCOORD0; float3 Normal : NORMAL0; }; struct VertexShaderOutput { float4 Position : POSITION0; float2 Texture : TEXCOORD0; float3 PositionO: TEXCOORD1; float3 Normal : NORMAL0; }; VertexShaderOutput VertexShaderFunction(VertexShaderInput input) { VertexShaderOutput output; output.Position = mul(input.Position, WVP); output.Normal = input.Normal; output.PositionO = input.Position.xyz; output.Texture = input.Texture; return output; } float4 PSAmbient(VertexShaderOutput input) : COLOR0 { return float4(Ka*globalAmbient + Ke,1) * tex2D(texSampler,input.Texture); } float4 PSDirectionalLight(VertexShaderOutput input) : COLOR0 { //Difuze float3 L = normalize(-lightDirection); float diffuseLight = max(dot(input.Normal,L), 0); float3 diffuse = Kd*lightColor*diffuseLight; //Specular float3 V = normalize(eyePosition - input.PositionO); float3 H = normalize(L + V); float specularLight = pow(max(dot(input.Normal,H),0),specularPower); if(diffuseLight<=0) specularLight=0; float3 specular = Ks * lightColor * specularLight; //sum all light components float3 light = diffuse + specular; return float4(light,1) * tex2D(texSampler,input.Texture); } technique MultiPassLight { pass Ambient { VertexShader = compile vs_3_0 VertexShaderFunction(); PixelShader = compile ps_3_0 PSAmbient(); } pass Directional { PixelShader = compile ps_3_0 PSDirectionalLight(); } } And here is how I actually apply my effects: public void ApplyLights(ModelMesh mesh, Matrix world, Texture2D modelTexture, Camera camera, Effect effect, GraphicsDevice graphicsDevice) { graphicsDevice.BlendState = BlendState.Opaque; effect.CurrentTechnique.Passes["Ambient"].Apply(); foreach (ModelMeshPart part in mesh.MeshParts) { graphicsDevice.SetVertexBuffer(part.VertexBuffer); graphicsDevice.Indices = part.IndexBuffer; // Texturing graphicsDevice.BlendState = BlendState.AlphaBlend; if (modelTexture != null) { effect.Parameters["Texture"].SetValue( modelTexture ); } graphicsDevice.DrawIndexedPrimitives( PrimitiveType.TriangleList, part.VertexOffset, 0, part.NumVertices, part.StartIndex, part.PrimitiveCount ); // Applying our shader to all the mesh parts effect.Parameters["WVP"].SetValue( world * camera.View * camera.Projection ); effect.Parameters["World"].SetValue(world); effect.Parameters["eyePosition"].SetValue( camera.Position ); graphicsDevice.BlendState = BlendState.Additive; // Drawing lights foreach (DirectionalLight light in DirectionalLights) { effect.Parameters["lightColor"].SetValue(light.Color.ToVector3()); effect.Parameters["lightDirection"].SetValue(light.Direction); // Applying changes and drawing them effect.CurrentTechnique.Passes["Directional"].Apply(); graphicsDevice.DrawIndexedPrimitives( PrimitiveType.TriangleList, part.VertexOffset, 0, part.NumVertices, part.StartIndex, part.PrimitiveCount ); } } I am also applying this when loading the effect: effect.Parameters["lightColor"].SetValue(Color.White.ToVector3()); effect.Parameters["globalAmbient"].SetValue(Color.White.ToVector3()); effect.Parameters["Ke"].SetValue(0.0f); effect.Parameters["Ka"].SetValue(0.01f); effect.Parameters["Kd"].SetValue(1.0f); effect.Parameters["Ks"].SetValue(0.3f); effect.Parameters["specularPower"].SetValue(100); Thank you very much UPDATE: I tried to load an effect for each model when drawing, but it doesn't seem to have changed anything. I suppose it is because XNA detects that the effect has already been loaded before and doesn't want to load a new one. Any idea why?

    Read the article

  • How to unit test models in MVC / MVR app?

    - by BBnyc
    I'm building a node.js web app and am trying to do so for the first time in a test driven fashion. I'm using nodeunit for testing, which I find allows me to write tests quickly and painlessly. In this particular app, the heavy lifting primarily involves translating SQL data into complex Javascript object and serving them to the front-end via json. Likewise, the app also spends a great deal of code validating and translating complex, multidimensional Javascript objects it receives from the front-end into SQL rows. Hence I have used a fat model design for the app -- most of the real code resides in the models, where the data translation happens. What's the best approach to test such models with unit tests? I mean in particular the methods that have create javascript objects from the SQL rows and serve them to the front-end. Right now what I'm doing is making particular requests of my models with the unit tests and checking the returned data for all of the fields that should be there. However I have a suspicion that this is not the most robust kind of testing I could be doing. My current testing design also means I have to package my app code with some dummy data so that my tests can anticipate the kind of data that the app should be returning when tests run.

    Read the article

  • Unresolved import: models

    - by Timmy O' Tool
    Hi! I'm doing my VERY first project using python/django/eclipse/pydev following this guide http://docs.djangoproject.com/en/dev/intro/tutorial01/ My only addition is the use of Eclipse/pydev. I'm getting many errors related to "Unresolved imports". I can remove the errors using "remove error markers" and my site runs perfect (I can browse it) but I want to get rid definitively of this problem since errors appear again after I removed them. Any ideas?

    Read the article

  • Generate unique hashes for django models

    - by becomingGuru
    I want to use unique hashes for each model rather than ids. I implemented the following function to use it across the board easily. import random,hashlib from base64 import urlsafe_b64encode def set_unique_random_value(model_object,field_name='hash_uuid',length=5,use_sha=True,urlencode=False): while 1: uuid_number = str(random.random())[2:] uuid = hashlib.sha256(uuid_number).hexdigest() if use_sha else uuid_number uuid = uuid[:length] if urlencode: uuid = urlsafe_b64encode(uuid)[:-1] hash_id_dict = {field_name:uuid} try: model_object.__class__.objects.get(**hash_id_dict) except model_object.__class__.DoesNotExist: setattr(model_object,field_name,uuid) return I'm seeking feedback, how else could I do it? How can I improve it? What is good bad and ugly about it?

    Read the article

  • Ruby on Rails: models that do not have a table

    - by randombits
    What's the best way to create a model in Ruby on Rails that doesn't have an underlying implementation in as far as a database table goes? It's very common to write classes that perform behavior on a particular problem domain, yet can use some of the benefits that ActiveRecord has such as validation. Is it best to just create it as a module or helper? What is the best practice here?

    Read the article

  • undefined method `build_users' with nested models

    - by Cédric
    I've got into trouble with nested attributes. Here is my Account model : class Account < ActiveRecord::Base has_many :products has_many :blogs has_many :openings has_many :users has_one :logo, :class_name => "AccountPicture" has_one :address, :class_name => "AccountAddress" has_and_belongs_to_many :options accepts_nested_attributes_for :logo, :allow_destroy => true accepts_nested_attributes_for :address, :allow_destroy => true accepts_nested_attributes_for :users, :allow_destroy => true end And here is my User model : class User < ActiveRecord::Base belongs_to :account end As you can see, Account accepts nested attributes for logo, address, and users. While testing, i can use nested attributes for logo and address, but not for user. a = Account.new => #<Account id: nil, hostname: nil, subdomain: nil, name: nil, description: nil, base_line: nil, footer: nil, phone_number: nil, mobile_number: nil, email_address: nil, created_at: nil, updated_at: nil> # building the address works fine >> a.build_address => #<AccountAddress id: nil, account_id: nil, country: nil, state: nil, county: nil, city: nil, suburb: nil, zipcode: nil, street: nil, streetno: nil, longitude: nil, latitude: nil, error_code: nil> # building the users fails >> a.build_users NoMethodError: undefined method `build_users' for #<Account:0x7f6862a5f948> from /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/attribute_methods.rb:260:in `method_missing' from (irb):2 Thus, in my views, when i use the nested forms, i got this error back : User(#69850615730460) expected, got Array(#69850664775200) Any help would be appreciated. Thanks.

    Read the article

  • Rails & ActiveRecord: Appending methods to models that inherit from ActiveRecord::Base

    - by PlankTon
    I have a standard ActiveRecord model with the following: class MyModel < ActiveRecord::Base custom_method :first_field, :second_field end At the moment, that custom_method is picked up by a module sent to ActiveRecord::Base. The functionality basically works, but of course, it attaches itself to every model class, not just MyModel. So if I have MyModel and MyOtherModel in the same action, it'll assume MyOtherModel has custom_method :first_field, :second_field as well. So, my question is: How do I attach a method (eg: def custom_method(*args)) to every class that inherits from ActiveRecord::Base, but not by attaching it to ActiveRecord::Base itself? Any ideas appreciated.

    Read the article

  • Routing Users to single Models with Rails

    - by Eric Koslow
    I'm creating a Rails app for students and high schools and I'm having some trouble with my User.rb. I want to have a user model to be used for logging in, but having that user have many roles. The tricky part is that I want users that have a student role to have_one student page, and those that have a role of principal to have_one high_school page. The students and also nested in the high_school so the entire thing becomes a big mess. So my question(s): How do I limit a user to only creating one student / high school to represent them? Also how would I nest this student pages inside the highschool without screwing up the user system? My environment: Rails3 and Ruby 1.9.2dev Thank you!

    Read the article

  • Django Models / SQLAlchemy are bloated! Any truly Pythonic DB models out there?

    - by Luke Stanley
    "Make things as simple as possible, but no simpler." Can we find the solution/s that fix the Python database world? from someAmazingDB import * class Task (model): title = '' isDone = False db.taskList = [] #or db.taskList = expandableTypeCollection(Task) #not sure what this syntax would be db['taskList'].append(Task(title='Beat old sql interfaces',done=False)) db.taskList.append(Task('Illustrate different syntax modes',True)) #at this point it should autosave #we should be able to reload the console and access like: >> from someAmazingDB import * >> print 'Done tasks:' >> for task in db.taskList: >> if task.done: >> print task 'Illustrate different syntax modes' I'm a fan of Python, webPy and Cherry Py, and KISS in general. We're talking automatic Python to SQL type translation or NoSQL. We don't have to totally be SQL compatible! Just a scalable subset or ignore it! Re:model changes, it's ok to ask the developer when they try to change it or have a set of sensible defaults. Here is the challenge: The above code should work with very little modification or thinking required. Why must we put up with compromise when we know better? It's 2010, we should be able to code scalable, simple databases in our sleep. If you think this is important, please upvote!

    Read the article

< Previous Page | 56 57 58 59 60 61 62 63 64 65 66 67  | Next Page >