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Azure storage account new access tier - Glimpse

Azure has introduced a new access tier for storage account called 𝐂𝐨𝐥𝐝. What is the use of it where we already have 3 access tiers as 𝐇𝐨𝐭, 𝐂𝐨𝐨𝐥 𝐚𝐧𝐝 𝐀𝐫𝐜𝐡𝐢𝐯𝐞?

Let us take scenarios as below.

  1. When our document will get frequently accessed - 𝐇𝐨𝐭
  2. When my document will be infrequently accessed (i.e Within 30 days, it can be accessed. - 𝐂𝐨𝐨𝐥
  3. If my document will be accessed after 30 days, 𝐞𝐚𝐫𝐥𝐢𝐞𝐫 𝐰𝐞 𝐠𝐨 𝐟𝐨𝐫 𝐀𝐫𝐜𝐡𝐢𝐯𝐞 access tier but now
  4. When my document needs to be accessed within 90 days at any time - 𝐂𝐨𝐥𝐝

Data retrieval from Archive needs some process like rehydrating (i.e converting from Archive tier to (Hot or Cool) aka offline tier to online tier).

To save some cost, we can go for cold tier which allows us to keep our data for 90 days instead of archive tier.

Limitations and known issues.

  • The change feed is not yet compatible with the cold tier.
  • Object replication is not yet compatible with the cold tier.
  • The default access tier setting of the account can't be set to cold tier.
  • Setting the cold tier in a batch call is not yet supported (For example: using the Blob Batch REST operation along with the Set Blob Tier subrequest).

    • Hope this tip will be useful.

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