Hello DRBD users
I am using DRBD version 8.3.10. I have no problems with creating DRBD resource. The problem appear when i export drbd device over scst using blockio. When i use fileio all looks to be fine, but i definitely see problem on blockio. Scst blockio is really important for me, so start using fileio is not a solution for me. In "perfect world" in my understanding of protocol C in DRBD statistics oos should be 0. Both nodes should be connected, uptodate. But when i export for example /dev/drbd0 using scst blockio i can connect my initiator and write data. From initiator side i see no errors at all. But on my servers i see: 1) Primary (iSCSI-SCST target) version: 8.3.10 (api:88/proto:86-96) GIT-hash: 5c0b0469666682443d4785d90a2c603378f9017b build by [email protected], 2011-02-15 17:12:46 0: cs:Connected ro:Primary/Secondary ds:UpToDate/UpToDate C r----- ns:0 nr:0 dw:39304260 dr:90632 al:0 bm:0 lo:0 pe:0 ua:0 ap:0 ep:1 wo:b oos:39254512 2) Secondary version: 8.3.10 (api:88/proto:86-96) GIT-hash: 5c0b0469666682443d4785d90a2c603378f9017b build by [email protected], 2011-02-15 17:12:46 0: cs:Connected ro:Secondary/Primary ds:UpToDate/UpToDate C r----- ns:0 nr:0 dw:0 dr:0 al:0 bm:0 lo:0 pe:0 ua:1 ap:0 ep:2 wo:b oos:0 After write about 35GB of data to my primary resource, secondary resource is reporting UpToDate state. When i run on secondary resource: "drbdadm down repdata && drbd up repdata" sync process start. I tried tcpdump between drbd resources and i can tell that there is no data traffic. I tried lots of DRBD configuration but no luck. On default and minimal DRBD configuration it also doesn't sync the data. Thank You for help and informations. -- Lucas
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