Sun Storage 7000 Unified Storage System: Rough estimates of access times to disks, ARC and L2ARC at the ZFS layer
(Doc ID 1574124.1)
Last updated on JANUARY 08, 2018
Applies to:Sun Storage 7310 Unified Storage System - Version All Versions and later
Sun Storage 7210 Unified Storage System - Version All Versions and later
Sun Storage 7110 Unified Storage System - Version All Versions and later
Sun ZFS Storage 7120 - Version All Versions and later
Sun ZFS Storage 7320 - Version All Versions and later
7000 Appliance OS (Fishworks)
Disks are slower than L2ARC ... which is slower than ARC. But by how much ?
That document intends to consider how much faster is L2ARC against disks. And how much faster is ARC against L2ARC.
This document applies to the ZFSSA appliance where ARC is configured by default to 98% of the RAM, and where L2ARC .i.e. SSDs can be installed.
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