| sysfs-block (50501936288d6a29d7ef78f25d00e33240fad45f) | sysfs-block (ebab9426cd73c45945b44344ca904b343f0ca070) |
|---|---|
| 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 --- 281 unchanged lines hidden (view full) --- 290Date: October 2021 291Contact: linux-block@vger.kernel.org 292Description: 293 [RO] The presence of this sub-directory of the 294 /sys/block/xxx/queue/ directory indicates that the device is 295 capable of executing requests targeting different sector ranges 296 in parallel. For instance, single LUN multi-actuator hard-disks 297 will have an independent_access_ranges directory if the device | 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 --- 281 unchanged lines hidden (view full) --- 290Date: October 2021 291Contact: linux-block@vger.kernel.org 292Description: 293 [RO] The presence of this sub-directory of the 294 /sys/block/xxx/queue/ directory indicates that the device is 295 capable of executing requests targeting different sector ranges 296 in parallel. For instance, single LUN multi-actuator hard-disks 297 will have an independent_access_ranges directory if the device |
| 298 correctly advertizes the sector ranges of its actuators. | 298 correctly advertises the sector ranges of its actuators. |
| 299 300 The independent_access_ranges directory contains one directory 301 per access range, with each range described using the sector 302 (RO) attribute file to indicate the first sector of the range 303 and the nr_sectors (RO) attribute file to indicate the total 304 number of sectors in the range starting from the first sector of 305 the range. For example, a dual-actuator hard-disk will have the 306 following independent_access_ranges entries.:: --- 431 unchanged lines hidden --- | 299 300 The independent_access_ranges directory contains one directory 301 per access range, with each range described using the sector 302 (RO) attribute file to indicate the first sector of the range 303 and the nr_sectors (RO) attribute file to indicate the total 304 number of sectors in the range starting from the first sector of 305 the range. For example, a dual-actuator hard-disk will have the 306 following independent_access_ranges entries.:: --- 431 unchanged lines hidden --- |