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--- linux_test_ssd_trim [2014/12/29 18:26] – admin
+++ linux_test_ssd_trim [2021/10/09 15:14] (current) – external edit 127.0.0.1
@@ Line 3: / Line 3: @@
 =====Test SSD TRIM with LVM=====
-  * check if the device report **discard_zeroes_data:1**<code># grep -s "" /sys/block/sda/queue/*
+  * check if the device report **discard_zeroes_data:1** The example below does not write zero's!<code># grep -s "" /sys/block/sda/queue/*
 /sys/block/sda/queue/add_random:1
 /sys/block/sda/queue/discard_granularity:512
@@ Line 26: / Line 26: @@
 /sys/block/sda/queue/scheduler:noop deadline [cfq]
 /sys/block/sda/queue/write_same_max_bytes:0</code>
-cat /sys/block/sda/queue/discard_zeroes_data
   * Note the LVM PV offset, in this case **1050624**:<code># fdisk -l /dev/sda