Hi,
I’m currently shrinking a device and it seems that the performance of shrink is abysmal. I intended to shrink a ~22TiB filesystem down to 20TiB. This is still using LVM underneath so that I can’t just remove a device from the filesystem but have to use the resize command.
Label: 'backy' uuid: 3d0b7511-4901-4554-96d4-e6f9627ea9a4
Total devices 1 FS bytes used 18.21TiB
devid 1 size 20.00TiB used 20.71TiB path /dev/mapper/vgsys-backy
This has been running since last Thursday, so roughly 3.5days now. The “used” number in devid1 has moved about 1TiB in this time. The filesystem is seeing regular usage (read and write) and when I’m suspending any application traffic I see about 1GiB of movement every now and then. Maybe once every 30 seconds or so.
Does this sound fishy or normal to you?
Kind regards,
Christian
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Christian Theune · ct@xxxxxxxxxxxxxxx · +49 345 219401 0
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