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Feature #3837

closed

krbd: support format 2 striping

Added by Josh Durgin over 11 years ago. Updated about 6 years ago.

Status:
Resolved
Priority:
Normal
Assignee:
Category:
rbd
Target version:
% Done:

0%

Source:
Tags:
Backport:
Reviewed:
Affected Versions:

Description

Format 2 images with the STRIPINGV2 feature bit set (created with rbd create --stripe-count X --stripe-unit Y --order Z --format 2 pool/image) use more generalized striping with the same parameters as cephfs. These are especially useful for small sequential write workloads like database write-ahead logs.

The first thing to do is get the kernel to read the additional striping information from the header if STRIPINGV2 is enabled.

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