pdc mirror is not multipath i/o

dm at chello.nl dm at chello.nl
Wed May 11 20:23:10 UTC 2005

Hi all,

My PDC dmraid configuration is running fine using dmraid, but I discovered it 
doesn't do multipath i/o:

# iostat 10
Device:            tps   Blk_read/s   Blk_wrtn/s   Blk_read   Blk_wrtn
hde             100.00      1029.60       104.80      10296       1048
hdg               2.90         0.00       104.80          0       1048

hdg almost never seems to read from the disk.

Could someone please tell me what I'm doing wrong?

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