sysfs-block (83725bdf94c3b5fc7ff235750093805c6bc599fe) sysfs-block (d2f526ba27d29c442542f7c5df0a86ef0b576716)
1What: /sys/block/<disk>/alignment_offset
2Date: April 2009
3Contact: Martin K. Petersen <martin.petersen@oracle.com>
4Description:
5 Storage devices may report a physical block size that is
6 bigger than the logical block size (for instance a drive
7 with 4KB physical sectors exposing 512-byte logical
8 blocks to the operating system). This parameter

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542
543What: /sys/block/<disk>/queue/max_segment_size
544Date: March 2010
545Contact: linux-block@vger.kernel.org
546Description:
547 [RO] Maximum size in bytes of a single element in a DMA
548 scatter/gather list.
549
1What: /sys/block/<disk>/alignment_offset
2Date: April 2009
3Contact: Martin K. Petersen <martin.petersen@oracle.com>
4Description:
5 Storage devices may report a physical block size that is
6 bigger than the logical block size (for instance a drive
7 with 4KB physical sectors exposing 512-byte logical
8 blocks to the operating system). This parameter

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542
543What: /sys/block/<disk>/queue/max_segment_size
544Date: March 2010
545Contact: linux-block@vger.kernel.org
546Description:
547 [RO] Maximum size in bytes of a single element in a DMA
548 scatter/gather list.
549
550What: /sys/block/<disk>/queue/max_write_streams
551Date: November 2024
552Contact: linux-block@vger.kernel.org
553Description:
554 [RO] Maximum number of write streams supported, 0 if not
555 supported. If supported, valid values are 1 through
556 max_write_streams, inclusive.
550
551What: /sys/block/<disk>/queue/max_segments
552Date: March 2010
553Contact: linux-block@vger.kernel.org
554Description:
555 [RO] Maximum number of elements in a DMA scatter/gather list
556 that is submitted to the associated block driver.
557

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557
558What: /sys/block/<disk>/queue/max_segments
559Date: March 2010
560Contact: linux-block@vger.kernel.org
561Description:
562 [RO] Maximum number of elements in a DMA scatter/gather list
563 that is submitted to the associated block driver.
564

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