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Storgagegateway

Volume Stored

  • Can be used as VM on premise or as a hardware appliance
  • Acts as an interface between local storage and aws
  • Locally presents storage using iSCSI,NFS or SMB
  • On AWS side it integrates with EBS, S3, Glacier products
  • Used for Migrations, Extensions, Storage Tiering, DR & replacement of backup systems
  • Volume storage can work in Cache Mode & Stored Mode
  • Whe using Stored Mode all data is stored locally on premises
  • The strage gateway has an upload buffer from where it is copied to AWS
  • Good for full disk backups, DR. Does not provide extenion of capacity
  • In Cached Mode, primary storage location is AWS i.e. S3. The data is cached locally
  • The S3 where data is stored is AWS managed
  • This way Cached Mode allows Data Center Extension
  • In Gateway Cached mode, single gateway can handle 32TB of volume & have 32 such volumes i .e 1 PB of data

Tape Stored

  • LTO(Linear Tape Open)-9 can save 24TB of uncompressed data, 60TB of compressed data
  • The storage gateway is iSCSI based hence the backup does not undestand difference between it and the traditional tape library
  • Storage gateway uses storage gateway endpoint in AWS.
  • Virtual Tape Library is backed by S3 & Virtual Tape Shelf is backed by Glaciar or Glaciar Deep Archive
  • Storage gateway has a local storage to which Backups happen at the LAN speed.
  • This local storage is then synced with VTL.
  • A virtual tape can be 100GB to 5TB. The Storage gateway can handle 1PB of data across 1500 virtual tapes

File Mode

  • Links local file storage with S3
  • Create a mount point available via NFS or SMB. Each mount maps directly to S3 bucket
  • The storage gateway runs on premise and provides Read & Write caching
  • 10 bucket shares per gateway are allowed