diff --git a/_posts/sysadm/2023-06-24-directly-attache-storage-with-redundancy-and-integrity-using-lvm-lvmraid.tl b/_posts/sysadm/2023-06-24-directly-attache-storage-with-redundancy-and-integrity-using-lvm-lvmraid.tl
index 7a8b1e6..08360c2 100644
--- a/_posts/sysadm/2023-06-24-directly-attache-storage-with-redundancy-and-integrity-using-lvm-lvmraid.tl
+++ b/_posts/sysadm/2023-06-24-directly-attache-storage-with-redundancy-and-integrity-using-lvm-lvmraid.tl
@@ -38,8 +38,6 @@ on LV:
 
 {% highlight bash %}
 # lvcreate --type raid1 --mirrors 1 -n backup -L 4t vgbackup /dev/sda /dev/sdb
-# cat /sys/class/block/sda/queue/physical_block_size
-4096
 # cat /sys/class/block/nvme0n1/queue/logical_block_size
 512
 # lvconvert --raidintegrity y --raidintegrityblocksize 4096 --raidintegritymode bitmap /dev/vgbackup/backup