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SAN or NAS: Ways to Connect Your Data

When building a storage network, your basic decision is SAN vs. NAS. The choice will impact how you access your data. You must think about your network that is right for you is critical to providing the right level of capability without overburdening your business...

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IBM SAN STORAGE
Sep 12, 2020

IBM SAN STORAGE

FlashSystem: IBM’s FlashSystem products all comes with TLC flash drives.

FlashSystem V9000:  

  • Scales out to eight controllers and disk shelves from 43TB to 1.7PB, with IOPS of between 1.3 million and 5.2 million. Connectivity is up to 16Gbps Fibre Channel and 10Gbps iSCSI and Fibre Channel-over-Ethernet.
  • NVMe modules claims between 2.5 million IOPS and 10 million IOPS for a clustered configuration.
  • TLC flash capacity from just over 100TB up to 1.2PB with up to 900,000 IOPS.

FlashSystem A9000R:

Three size configurations with raw capacities IOPS is 2.4 million:

  • 72TB to 144TB connectivity is Fibre Channel
  • 170TB to 340TB connectivity is iSCSI to 16Gbps
  • 360TB to 720TB connectivity is iSCSI to 10Gbps.

FlashSystem 900:

13TB per 2U box with 1.1 million IOPS read-only, and around 800,000 IOPS with 70/30 read/write.

StorWize:

IBM’s StorWize V5030F:

  • House up to 760 drives or double that in a clustered configuration, which with 15TB flash drives, makes for around 22PB maximum capacity. IBM Spectrum Virtualize software (formerly SAN Volume Controller) allows for storage virtualisation across disparate devices.
  • StorWize V7000F scales up to 3,040 drives, making for about 44PB raw capacity.
  • Minus the F suffix, StorWize provides hybrid flash array functionality.

DS series:

IBM’s DS8000F series:

All-flash arrays aimed at mainframe use cases. models that come in different capacities up to 1.2PB and connectivity via 8Gbps and 16Gbps Fibre Channel and FICON.

The DS8880 is IBM’s hybrid flash SAN array family, which comes in capacities up to about 5PB, of which approximately one sixth – in terms of drive bays/card slots – can be solid state. Once again, the DS brings mainframe compatibility.

TAGS: Storage