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Category: Advanced Format

Oracle’s ASM Filter Driver Revisited

A full re-test of Oracle's ASM Filter Driver a year on – correcting earlier mistakes and giving a definitive verdict on AFD behaviour with 4k Advanced Format devices.

flashdba Advanced Format, ASM, Blog, Databases, Linux, Storage 10 Comments July 29, 2015June 19, 2026 13 Minutes

Oracle 12.1.0.2 ASM Filter Driver: Advanced Format Fail

The ASM Filter Driver introduced in Oracle 12.1.0.2 as a replacement for ASMLib has a critical flaw: it fails entirely with 4k native Advanced Format devices.

flashdba Advanced Format, ASM, Blog, Databases, Linux, Storage 8 Comments August 11, 2014June 19, 2026 8 Minutes

Oracle 12.1.0.2 ASM Filter Driver: First Impressions

Oracle's new ASM Filter Driver in 12.1.0.2 promises cleaner I/O filtering than ASMLib – here are the initial installation findings and what to watch out for with 4k devices.

flashdba Advanced Format, ASM, Blog, Databases, Linux, Storage 21 Comments July 25, 2014June 19, 2026 6 Minutes

New My Oracle Support note on Advanced Format (4k) storage

A new official Oracle support note on Advanced Format 4k storage – co-authored with Oracle ASM Development to replace the confusing and inconsistent guidance that existed before.

flashdba Advanced Format, ASM, Blog, Databases, Flash, Storage Leave a comment June 12, 2014June 19, 2026 1 Minute

The Ultimate Guide To Oracle with Advanced Format 4k

Everything you need to know about running Oracle on Advanced Format 4k storage – a high-level overview and a full Oracle deep dive, in one place.

flashdba Advanced Format, ASM, Blog, Databases, Flash, Linux, Storage Leave a comment April 4, 2014June 19, 2026 1 Minute

More Problems with Oracle’s Support of 4k Devices

Bypassing ASM and using a filesystem doesn't escape Oracle's 4k compatibility issues – here's what breaks when you put Oracle on a 4k native device without ASM.

flashdba Advanced Format, Blog, Databases, Storage 2 Comments March 3, 2014June 19, 2026 5 Minutes

Oracle ASMLib: Physical and Logical Blocksize

The ORACLEASM_USE_LOGICAL_BLOCK_SIZE parameter controls how ASMLib handles 4k Advanced Format devices – here's what it does and when you need to change it.

flashdba Advanced Format, Blog, Databases, Linux, Storage 14 Comments February 27, 2014June 19, 2026 3 Minutes

Oracle Fixes The 4k SPFILE Problem…But It’s Still Broken

Oracle patched the SPFILE failure on 4k devices in 11.2.0.4 – but the underlying support for Advanced Format storage remains incomplete and unreliable.

flashdba Advanced Format, ASM, Blog, Databases, Linux, Storage Leave a comment February 6, 2014June 19, 2026 5 Minutes
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