Using Azure Storage to Replace Win2008 File server? - azure

We are looking to replace our normal Win2008 R2 File server with a Azure Cloud based solution. Our Current use scenario is something like this:
Server A, Location A
Hosts 4gb of Data
Server B, Location B
Hosts 4gb of Data
Server A and B are Replicated.
Users access Data like:
\Domain-Name\DFSShare\ShareName
Many have Mapped Drives to the DFS Shares.
Can I use the Azure Storage to Replace this? I'd like to still have the users map Drives to the same shared storage areas on Azure.
I Would also need the same Security Permissions setup so all the users have the same permissions that they do for the Existing File Server storage. So I'd like Active Directly Integration.
Is this something that Azure Storage can do for me?
Thanks!

Might I recommend a product like StorSimple? This will accomplish the type of functionality you're after without need for costly development.

You can install a virtual server in Azure Iaas with a VNET and have a site-to-site VPN to your office. For users not in the office, you can have a VPN solution or install WebDAV on the file server and map drives over the internet.

You cannot direct-map local-server drive letters to cloud storage (which is triple-replicated), although individual Compute instances may do so. Also, mounting an NTFS volume inside a blob is a single-writer scenario, though multiple readers may snapshot and access these drives. All this to say no, this won't replace your network shares.
As #Brent pointed out, StorSimple is a good solution to explore, since it's an appliance that provides network share replication to blob storage transparently (and encrypts data prior to pushing it to Windows Azure). This would at least obviate the need for maintaining your replication server, as well as providing offsite replication.

I wrote a file system driver using the dokan library, which you can take a look at here:
https://github.com/richorama/AzureBlobDrive
I wouldn't say it was lightning fast, and it doesn't implement every feature of NTFS, but it might work for you.

Related

Access Azure Files Services from Azure WebSites

As the title says, I'm looking for a way to access an azure files share (in preview) directly from an azure website. I cannot use any REST API or anything like this and I was looking for the possibility of mounting a SMB share directly into the website (through the new portal or any other way).
I found the following links, from which I understand that this is still under review (http://feedback.azure.com/forums/169385-web-apps-formerly-websites/suggestions/6084609-allow-map-azure-file-share-microsoft-azure-file-s) and also a SO question (Can the new Azure File Service be used from Azure WebSites?) that doesn't answer my question.
To be honest and for the sake of giving more details, my scenario is pretty simple - I have some websites and also some virtual machines that should access the files from the azure files service. Regarding the VM, the approach is pretty straight forward and easy but regarding the WebSites, I don't find any way at this moment.
On the other hand, regardless of the answer to the above question, does it make sense to (or do I have the possibility to) enable CDN over an Azure Files Share?
Thank you very much.
As of today, no single technology will serve your purpose. You can't use File Service as you don't have the capability to mount a share in an Azure Website as well as it is not suited for streaming purposes (all access to files there need to be authorized and there's no concept of Shared Access Signature in File Service today).
I guess, you would have to pick one of the two technologies (Blob Service and File Service) and make some compromises to make it work in both Websites and Virtual Machines.
Assuming you go with File Service, then you can mount them in the Virtual Machine and do the processing on the files there. On the website front, you would need to use Storage Client library to download the relevant files in some folder in your website and stream those files from there.
Assuming you go with Blob Service, then you can simply stream them in your website directly from blob storage (no need to have those files in your website). In the Virtual Machine, when you need to process those files (blobs), you would simply download them to your VM for processing and then re-upload them in blob storage.
Does it make sense to (or do I have the possibility to) enable CDN
over an Azure Files Share?
Currently it is not possible to serve Azure File Service files via CDN.

Questions on sharing SQL Server on VM and making it accessible to various other VM

Is it possible to create a Azure VM (medium or large) running an instance of SQL Server. This machine would contain various databases (one of each client). These databases would then need to be accessible from different Azure VM's which would be hosting either a single website per vm or multiple website per vm each requiring to access different databases.
If it is possible:
How do the other Azure VMs connect to the relevant VM that's running SQL server and connect to a specific database?
What cost implication are there? We store a lot of data including documents as blobs.
Our software supports both storing the documents as blobs or as actual files. Should we consider storing the files directly onto the hard drive instead of storing them in the database? Would this improve performances when running on Azure VM and/or reduce cost?
What's the recommended solution for backup? I assume that Azure VM can go down, though less likely, just like any other machines. What the recommended solution to restore a back?
Same for SQL Server. What is the recommended solution to backup database. Since we'd be running a full version of SQL on a Azure VM, is the best solution to have a separate storage drive and backup databases on this?
Thanks.
1-)You can create a Virtual Network and after that, create your VM's and set them to use this virtual network. Doing that, your vm's would call the vm with your sql server.
2-) You'll be billed for network, storage and vm compute (including vm size). The best you can do is create a vm and test for a little (with this settings). So you'll know how much your are spending.
3-) When you create a vm, the vhd is stored in a storage account. There's a backup for that, but you can download the vhd and make a version of that on premises.
4-) My suggestion, attach a extra disk to your VM and use it to SQL Server Backup.

Shared drive between Azure Virtual Machines

I have just moved my web site to an Azure Virtual Machine and have been up and running since last weekend. So far I'm very happy with the results and looking forward to taking advantage of Azure further in due course.
I do have what would seem to be a pretty common scenario - and, to my surprise, I can't find an obvious solution. I have a couple of VMs - one my primary server and the other which will be suspended and ready to kick in (manually is fine) if the first one has an issue. I backup my web site to Azure Storage (my backup utility supports saving to an Azure blob). That's the good news.
I had assumed that I could somehow mount the storage blob as a drive, therefore effectively having shared storage across the two VMs. However, to my surprise, I haven't found an obvious way to do that. I have found a third party utility (Gladinet Cloud Desktop) but it seems painfully slow. As I say, I admit I just assumed this would be an easy thing to do.
So, stepping back, what is the most straightforward way to access a storage blob from multiple VMs? I really don't want to set up a private network and then set up network file sharing - that seems so old school :) and places a specific dependency on one specific VM.
Any suggestions?
Thanks.
This is now not just possible, but very easy, and it looks just like a filesystem. Check out the new Azure File Service (in preview as of this writing).
http://blogs.msdn.com/b/windowsazurestorage/archive/2014/05/12/introducing-microsoft-azure-file-service.aspx
Quoting from the announcement:
"The Azure File service exposes file shares using the standard SMB 2.1 protocol. Applications running in Azure can now easily share files between VMs using standard and familiar file system APIs like ReadFile and WriteFile."
It is better than just an SMB drive, as the announcement goes on to mention:
"In addition, the files can also be accessed at the same time via a REST interface, which opens a variety of hybrid scenarios. Finally, Azure Files is built on the same technology as the Blob, Table, and Queue Services, which means Azure Files is able to leverage the existing availability, durability, scalability, and geo redundancy that is built into our platform."
In Azure Resource Manager "Storage Account" you can create a Network File Share that can be Mounted as a Drive to multiple VM's or to computers and devices not on Azure for both Unix, Linux and Windows.
In General, go to your Storage Account ➡ Files ➡ Create FileShare ➡ Name the Share and the Disk Space Quota ➡ Click Connect to obtain the command or windows or linux to mount the share to the respective devices. Note this ONLY WORKS for Local Redundant Storage, not Zone, not Geo Redundant.
https://www.youtube.com/watch?v=SGPJZMaSlis
The video tutorial above shows you step by step how to do this. The only restriction is needed is OS support of the SMB 3.0 protocol which Windows 8 or above does and Windows 2012 or above does. Requires Firewall Port 445 to be opened.
You can access blobs from multiple VMs. This is a very common pattern. What you can't do is mount a drive (stored in a blob) on multiple VMs simultaneously. That is, if you decide to create a VHD disk and attach it to a VM (whether Linux or Windows - doesn't matter), then the blob-backed disk is locked to a VM and that VM can then work with the vhd like it would a local file system.
If, on the other hand, you deal with blobs discretely as single objects, you can easily work with these blobs across any number of VMs.
If you're looking to do something like network sharing (e.g. SMB), you'd either need to use the Azure File Service or stage your own SMB server VM.
In the case where you absolutely must have a mounted file system, yet want to use the file system in a primary/backup fashion, you could always do something via the API to unmount from one VM and remount to another VM. This can be executed via PowerShell (Windows only) or via the cross-platform command-line interface on Linux/Mac/Windows. You'd do this if your primary VM failed for some reason.
this are good articles, I am also looking for that, hope find the right solution.
I hope you share your experience here with your choice.
Deciding when to use Azure Blobs, Azure Files, or Azure Disks
https://learn.microsoft.com/en-us/azure/storage/common/storage-decide-blobs-files-disks
there are premium disks
https://azure.microsoft.com/en-us/pricing/details/managed-disks/
Manually create and use a volume with Azure disks in Azure Kubernetes Service (AKS)
https://learn.microsoft.com/en-us/azure/aks/azure-disk-volume
Note : An Azure disk can only be mounted to a single pod at a time. If you need to share a persistent volume across multiple pods, use Azure Files.
Performance guidelines for SQL Server in Azure Virtual Machines
https://learn.microsoft.com/en-us/azure/virtual-machines/windows/sql/virtual-machines-windows-sql-performance
Deploy a SQL Server container in Kubernetes with Azure Kubernetes Services (AKS)
https://learn.microsoft.com/en-us/sql/linux/tutorial-sql-server-containers-kubernetes?view=sql-server-2017

How to write to a tmp/temp directory in Windows Azure website

How would I write to a tmp/temp directory in windows azure website? I can write to a blob, but i'm using an NPM that requires me to give it file names so that it can directly write to those filenames.
Are you using Cloud Services (PaaS) or Virtual Machines (IaaS).
If PaaS, look at Windows Azure Local Storage. This option gives you up to 250gb of disk space per core. Its a great location for temporary storage of information in a way that traditional apps will be familiar with. However, its not persistent so if you put anything there you need to make sure will be available if the VM instance gets repaved, then copy it to Blob storage. Also, this storage is specific to a given role instance. So if you have two instances of the same role, they each have their own local storage buckets.
Alternatively, you can use Azure Drive, which allows you to keep the information persisted, but still doesn't allow multiple parallel writes.
If IaaS, then you can just mount a data disk to the VM and write to it directly. Data disks are already persisted to blob storage so there's little risk of data loss.
Just from my understanding and please correct me if anything wrong.
In Windows Azure Web Site, the content of your website will be stored in blob storage and mounted as a drive, which will be used for all instances your web site is using. And since it's in blob storage it's persistent. So if you need the local file system I think you can use the folders under your web site root path. But I don't think you can use the system tmp or temp folder.

Dynamic file hosting on Azure

I am using Windows Azure for a custom blog implementation. The blog uses CKEditor and the CKFinder file management plugin. Typically the file management plugin connects to a file system directory to store the files. I need to store these as if it was a local directory and serve them through HTTP requests. In Azure you cannot rely on the file system to maintain through recycles.
I assume you are to use Azure Storage, but am at a loss as to how to do this. Is there a way to "mount" these storage systems to the file system? Am I correct in my assumptions to use storage? If not any guidance as to what I am missing?
Thanks
Or, you could use AzureBlobDrive to mount blob storage as a drive in Azure directly (no VHD, no limitation on only one instance being able to write).
https://github.com/richorama/AzureBlobDrive
You can actually mount a page blob as an NTFS drive, which is then a "durable drive" (just like any other blob), and you access it via a drive letter, just like a locally-attached (but volatile) drive.
The issue is that, using mounted drives, you may only have one writer, so this might cause challenges when scaling to multiple instances.
Take a look at this MSDN post to see an example of mounting a drive. Notice that, while the example doesn't set up any cache, you can specify a cache size. The cache is stored on a local disk resource.
EDIT: For a tutorial, download the Windows Azure Training Kit. Go to hands-on labs, and open Exploring Windows Azure Storage. Check out Exercise 4: Working with Drives.

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