不重啟服務器在線擴容FCSAN存儲
以下命令針對不增加LUN,只在存儲端修改LUN的大小后,linux在線更新LUN信息,并擴容LVM
multipath -ll /dev/mapper/dev01_OLD
for i in $(ls /sys/class/scsi_device/); do echo 1> /sys/class/scsi_device/$i/device/rescan; done #掃描所有LUN
multipathd resize map /dev/mapper/dev01_OLD
#擴容lvm
pvresize /dev/mapper/dev01_OLD
lvextend /dev/mapper/vgnfs-lvnfs -l +100%FREE
resize2fs /dev/mapper/vgnfs-lvnfs
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