topic diffrance between FBWC and IO Accelerator in Array Performance and Data Protection

diffrance between FBWC and IO Accelerator

Sunny367 — Tue, 12 Aug 2025 10:24:44 GMT

Difference between FBWC and IO Accelerator about primary function, Technology, Data Persistence and Focus.
It can be considered as data-bearing technology ?

Re: diffrance between FBWC and IO Accelerator

Cali — Fri, 08 Aug 2025 11:59:27 GMT

Hi,

FBWC is the Acronym for "Flash Back Write Cache".

This is a Write Cache for a Storage Raid Controller.
Size is 1GB up to 16GB.

I/O Accelerator is only a PCI Flash Memory Card (ioDrive2 or Fusion-io ).
This Flash Memory Card can be used for multiple use cases, like a Cache, a very fast ultra low-latency Disk.
Size can be 300GB up to multiple TB.

Cali

Re: diffrance between FBWC and IO Accelerator

Sebasbin — Mon, 11 Aug 2025 09:44:10 GMT

Hi,

FBWC is a caching technology for a RAID controller, while an IO Accelerator is a high-speed storage device.

Please find the following documents for your review.

QuickSpecs HPE PCIe IO Accelerators for ProLiant Servers
https://www.hpe.com/psnow/doc/c04111683

HPE Smart Array SR Gen10 Controller User Guide
https://support.hpe.com/hpesc/public/docDisplay?docId=a00019059en_us&page=GUID-022BD8D1-6F62-4812-B03B-B14D100E9D9C.html&docLocale=en_US