Empfohlen
Weitere ähnliche Inhalte
Was ist angesagt?
Was ist angesagt? (20)
Andere mochten auch
Ähnlich wie Windows Azure Blob Storage
Ähnlich wie Windows Azure Blob Storage (20)
Kürzlich hochgeladen
Kürzlich hochgeladen (20)
Windows Azure Blob Storage
- 1. WINDOWS AZURE BLOB STORAGE DEEP DIVE Wely Lau (wely@ncs.com.sg) Microsoft MVP, Windows Azure Solutions Architect, NCS Pte Ltd Blog : http://wely-lau.net
- 2. AGENDA • Windows Azure Storage Overview (10 mins) • Blob Storage Basic (15 mins) • Understanding container and blob • Main web service operations • Metadata • Snapshot • Deep Dive (20 mins) • Block blob &page blob • Shared Access Signature • Content Delivery Network • Tip of the day (10 mins) • Q & A (5 mins)
- 3. WINDOWS AZURE STORAGE OVERVIEW
- 4. WINDOWS AZURE STORAGE • Storage in the Cloud • Highly available with 99.9% monthly SLA • Anywhere at anytime access • Data Redundancy • Data is replicated for resilience and protection with 3 copies within the same data center. • Another 3 copies geo-replicated in another data center • Cost effective • Storage capacity: $ 0.14 per GB per month • Storage transaction: $ 0.01 per 10,000 transaction • User specified globally unique account name • Can choose geo-location to host storage account • US – “North Central” and “South Central” • Europe – “North” and “West” • Asia – “East” and “Southeast” • Can co-locate storage account with compute account • Explicitly or using affinity groups • Some Facts • 70 Petabytes raw storage today • Grows to >200 Petabytes by start of 2012
- 5. WINDOWS AZURE STORAGE ABSTRACTION
- 6. STORAGE EMULATOR • Provides a local “Mock” storage • Emulates storage in cloud • Allows offline development • Requires SQL Express 2005/2008 or above There are some differences between Cloud and Dev Storage. http://msdn.microsoft.com/dd320275
- 7. ACCESSING WINDOWS AZURE STORAGE VIA API • REST-based Web Service • Platform independent Developers… • Use when a library isn‟t available • Lacks Intellisense • Results in opaque code .NET Java PHP etc... • Storage Client Libraries REST-based API • .NET, Java, Python, Ruby, PHP, Perl, Jav Windows Azure Storage aScript (Node), Objective-C, etc. • More at http://tinyurl.com/was-library • These provide an abstraction layer on top of the REST API and is the most common way to access storage.
- 8. ACCESSING WINDOWS AZURE STORAGE VIA TOOLS • Cloud Storage Studio by Cerebrata • Azure Storage Explorer by Neudistic • CloudXplorer by ClumsyLeaf • CloudBerry Explorer by CloudBerry Lab • More at http://tinyurl.com/was-explorers
- 11. WINDOWS AZURE BLOB STORAGE • You can have as many containers and BLOBs as you want. • Containers can be created/destroyed on the fly http://<account>.blob.core.windows.net/<container>/<blobname> http://cohowinery.blob.core.windows.net/images/pic01.jpg Account: MovieConversion blobs Container: Originals Container: Completed - Job1.mpg - Job 9.mpg - Job2.mpg - Index.docx - Header.png - Job8.pdf
- 12. CONTAINERS • Similar to a top level folder • Special $root container http://cohowinery.blob.core.windows.net/pic01.jpg http://cohowinery.blob.core.windows.net/$root/pic01.jpg • Has an unlimited capacity • Can only contain BLOBs • Associate Metadata with Container Each container has an access level: - Private - Default, will require the account key to access - Public read access for blobs only - Blob data within this container can be read via anonymous request, but container data is not available - Full public read - Container and blob data can be read via anonymous request
- 13. BLOB • Main Web Service Operations • PutBlob • GetBlob • DeleteBlob • CopyBlob • SnapshotBlob • LeaseBlob • Associate Metadata with Blob • Metadata is <name, value> pairs, up to 8KB per blob • Blob always accessed by name • Can include „/„ or other delimeter in name • e.g. /<container>/myblobs/blob.jpg
- 15. BLOB STORAGE DEEP DIVE
- 16. TWO TYPES OF BLOBS UNDER THE HOOD
- 17. UPLOADING A BLOCK BLOB • Uploading a large blob with Put Block List
- 18. PAGE BLOB – RANDOM READ/WRITE
- 19. demo BLOCK BLOB / PAGE BLOB
- 20. SHARED ACCESS SIGNATURE • Fine grain access rights to blobs and containers • Sign URL with storage key – permit elevated rights • Revocation • Use short time periods and re-issue • Use container level policy that can be deleted • Two broad approaches • Ad-hoc • Policy based
- 21. AD HOC SIGNATURES • Create Short Dated Shared Access Signature • Signedresource Blob or Container • AccessPolicy Start, Expiry and Permissions • Signature HMAC-SHA256 of above fields • Use case • Single use URLs • E.g. Provide URL to Silverlight client to upload to container
- 22. POLICY BASED SIGNATURES • Create Container Level Policy • Specify StartTime, ExpiryTime, Permissions • Create Shared Access Signature URL • Signedresource Blob or Container • Signedidentifier Optional pointer to container policy • Signature HMAC-SHA256 of above fields • Use case • Providing revocable permissions to certain users/groups • To revoke: Delete or update container policy
- 24. CONTENT DELIVERY NETWORK • High-bandwidth global blob content delivery • 24 locations globally (US, Europe, Asia, Australia and South America), and growing • Same experience for users no matter how far they are from the geo-location where the storage account is hosted • Blob service URL vs. CDN URL: • Windows Azure Blob URL: http://images.blob.core.windows.net/ • Windows Azure CDN URL: http://<id>.vo.msecnd.net/ • Custom Domain Name for CDN: http://cdn.contoso.com/
- 25. CONTENT DELIVERY NETWORK North Europe North Central US East Asia West Europe South Central US South East Asia
- 26. CONTENT DELIVERY NETWORK To Enable CDN: • Register for CDN via Dev Portal • Set container images to public
- 27. demo CONTENT DELIVERY NETWORK URL Time No CDN AVG http://welyncus.blob.core.windows.net/mseinstall 11:23 58 seconds .exe 50 seconds 11:24 49 seconds 11:27 43 seconds http://az145199.vo.msecnd.net/mseinstall.exe 11:28 40 seconds 39 seconds 11:29 37 seconds 11:30 40 seconds http://welydemostorage.blob.core.windows.net/ 11:32 38 seconds mseinstall.exe 37.67 seconds 11:32 34 seconds 11:33 41 seconds http://az28746.vo.msecnd.net/mseinstall.exe 11:35 36 seconds 31 seconds 11:36 29 seconds 11:37 28 seconds
- 28. TIP OF THE DAY
- 29. LIVE PERFORMANCE COUNTER • Checkout: http://tinyurl.com/wely-live-perf • Hosting web content in Blob Storage • Query Blob Storage from the browser Idea courtesy to Steve Marx
- 30. THANK YOU! Wely Lau (wely@ncs.com.sg) Microsoft MVP, Windows Azure Solutions Architect, NCS Pte Ltd Blog : http://wely-lau.net
Hinweis der Redaktion
- This session discusses your data and the Windows Azure platform.
- Slide ObjectiveUnderstand the Development Storage ServiceSpeaking notesClient side simulator of storage in the cloud. Allows completely disconnected (e.g. while travelling on a plane) development of Windows Azure appsCan consume just like Cloud storage- from Development Fabric, from another application running locallyIs locked down so that it cannot be called from off the boxIf you need this capability run a reverse proxy on the dev machineCan use CSRun to start and stop serviceMore on this in Day 3Uses a single fixed account. The account name and key are always the sameAnyone memorized the Account key yet? Eby8vd…..Noteshttp://msdn.microsoft.com/en-us/library/dd179339.aspxThe Windows® Azure™ SDK development environment includes development storage, a utility that simulates the Blob, Queue, and Table services available in the cloud. If you are building a hosted service that employs storage services or writing any external application that calls storage services, you can test locally against development storage.The development storage utility provides a user interface to view the status of the local storage services and to start, stop, and reset them.This topic contains the following subtopics: