pvmove hangs on 2T devices
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When trying to move PEs from one 2T (or greater) multipathed device to another one that was just added to the volume group in a clustered environment will result in a hang with the following messages: [ 6778.164097] device-mapper: dm-log-userspace: [autyCORE] Request timed out: [5/586] - retrying Feb 3 08:48:17 hostname cmirrord: Sync checkpoint section create retry
Devices less than 2Tb work correctly.
Modify the region_size of /etc/lvm/lvm.conf: raid_region_size = 512 ==> raid_region_size = 2048
In a clustered environment, `pvmove` will create a temporary mirrored LV to sync data. Bitmap size is 256KB(due to message length limited at 1M), region_size(data region size of 1 bit in bitmap) is 512KB by default. So if we use default region_size the volume size is limited at: 512KB * 256KB*8 = 1TB
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- Document ID:7016272
- Creation Date:09-MAR-15
- Modified Date:09-MAR-15
- SUSESUSE Linux Enterprise Server
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