Linux中的physical_block_size和logical_block_size
2016-09-18 07:59
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[root@rhel63single queue]# pwd /sys/block/sdj/queue [root@rhel63single queue]# ls -lrt | grep size -r--r--r--. 1 root root 4096 Aug 24 21:58 physical_block_size -r--r--r--. 1 root root 4096 Aug 24 21:58 optimal_io_size -r--r--r--. 1 root root 4096 Aug 24 21:58 minimum_io_size -r--r--r--. 1 root root 4096 Aug 24 21:58 max_segment_size -r--r--r--. 1 root root 4096 Aug 24 21:58 logical_block_size -r--r--r--. 1 root root 4096 Aug 24 21:58 hw_sector_size [root@rhel63single queue]# lsblk -o NAME,PHY-SeC NAME PHY-SEC sr0 2048 sdb 512 └─sdb1 512 sdc 512 └─sdc1 512 sda 512 ├─sda1 512 ├─sda2 512 └─sda3 512 sdd 512 └─sdd1 512 sde 512 └─sde1 512 sdh 512 sdg 512 └─sdg1 512 sdi 512 sdj 512 └─sdj1 512 sdf 512 └─sdf1 512 [root@rhel63single queue]# [root@rhel63single queue]# lsblk -o NAME,PHY-SeC,LOG-SEC NAME PHY-SEC LOG-SEC sr0 2048 2048 sdb 512 512 └─sdb1 512 512 sdc 512 512 └─sdc1 512 512 sda 512 512 ├─sda1 512 512 ├─sda2 512 512 └─sda3 512 512 sdd 512 512 └─sdd1 512 512 sde 512 512 └─sde1 512 512 sdh 512 512 sdg 512 512 └─sdg1 512 512 sdi 512 512 sdj 512 512 └─sdj1 512 512 sdf 512 512 └─sdf1 512 512 [root@rhel63single queue]#
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