Hello Junhui, Thursday, September 20, 2018, 8:26:58 PM, you wrote: > From 647ac21a0068df1fafb038a628791d2fcc135462 Mon Sep 17 00:00:00 2001 > From: Tang Junhui <tang.junhui.linux@xxxxxxxxx> > Date: Fri, 21 Sep 2018 04:52:20 +0800 > Subject: [PATCH] bcache: add a command to show bcache topology > This patch add a command to show bcache topology as bellow: > [root@ceph x86_64]# cat /sys/fs/bcache/show "show" doesn't look like a good file name here, it's vague and doesn't convey the meaning. Maybe just use "topology" instead? > ( sdb ) : ( sdg:bcache4 sdf:bcache3 sde:bcache2 sdd:bcache1 sdc:bcache0 ) > ( sdh ) : ( sdm:bcache9 sdl:bcache8 sdk:bcache7 sdj:bcache6 sdi:bcache5 ) > In the output result, each line shows cache devices in the first () and > its cached devices in the second (). By this command, we can be easily > to know cached device bcache4 base on backing device sdg and cache device > sdb, we also can see bcache0 bcache1 bcache2 bcache3 and bcache4 are in > the same cache set. > (patch skipped) Pavel Goran
