[OpenIndiana-discuss] write speeds faster with no ZIL and L2ARC

Roy Sigurd Karlsbakk roy at karlsbakk.net
Sun Jun 26 18:21:47 UTC 2011


> Can anyone provide insight to this slow write speed situation when ZIL
> and L2ARC is present?

AFAIK, L2ARC shouldn't make an impact on writes, although a slowish SLOG (ZIL on a separate device) may do. If the SLOG is on a slow SATA bus, writes will be limited by the speed to that device, and if using ASYNC writes, an SLOG won't be of much use anyway.

Vennlige hilsener / Best regards

roy
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Roy Sigurd Karlsbakk
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