Hi. I install Lustre on Centos 7.6 server + HP MSA 2040 SAN connected via FC. When I try mount Lustre volume with sector size over 1024 kb, an error occurs (invalid path, etc.).
Two question: 1) It is possible fix it? 2) It's safety for data if I remount from sector_size=1024kb to sector_size=16384kb? [root@ast1 ~]# uname -a Linux ast1 3.10.0-957.10.1.el7_lustre.x86_64 #1 SMP Sun May 26 21:48:35 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux [root@ast1 ~]# multipath -ll mpathe (3600c0ff0001e5f28329a0b5d01000000) dm-4 HP ,MSA 2040 SAN size=22T features='1 queue_if_no_path' hwhandler='0' wp=rw |-+- policy='service-time 0' prio=50 status=active | `- 4:0:0:3 sdd 8:48 active ready running `-+- policy='service-time 0' prio=10 status=enabled `- 5:0:0:3 sdi 8:128 active ready running mpathd (3600c0ff0001e5f62439a0b5d01000000) dm-3 HP ,MSA 2040 SAN size=22T features='1 queue_if_no_path' hwhandler='0' wp=rw |-+- policy='service-time 0' prio=50 status=active | `- 5:0:0:4 sdj 8:144 active ready running `-+- policy='service-time 0' prio=10 status=enabled `- 4:0:0:4 sde 8:64 active ready running mpathc (3600c0ff0001e5f62c6bbe35c01000000) dm-0 HP ,MSA 2040 SAN size=3.3T features='1 queue_if_no_path' hwhandler='0' wp=rw |-+- policy='service-time 0' prio=50 status=active | `- 5:0:0:2 sdh 8:112 active ready running `-+- policy='service-time 0' prio=10 status=enabled `- 4:0:0:2 sdc 8:32 active ready running mpathb (3600c0ff0001e5f28b8bbe35c01000000) dm-1 HP ,MSA 2040 SAN size=6.5T features='1 queue_if_no_path' hwhandler='0' wp=rw |-+- policy='service-time 0' prio=50 status=active | `- 4:0:0:1 sdb 8:16 active ready running `-+- policy='service-time 0' prio=10 status=enabled `- 5:0:0:1 sdg 8:96 active ready running mpatha (3600c0ff0001e5f28e7b2e25c01000000) dm-2 HP ,MSA 2040 SAN size=558G features='1 queue_if_no_path' hwhandler='0' wp=rw |-+- policy='service-time 0' prio=50 status=active | `- 4:0:0:0 sda 8:0 active ready running `-+- policy='service-time 0' prio=10 status=enabled `- 5:0:0:0 sdf 8:80 active ready running
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