Re: [DRBD-user] ko-count and blocking backing devices

2011-02-15 Thread Roland Friedwagner
As a second test I did the same with version: 8.3.8 (api:88/proto:86-94) GIT-hash: d78846e52224fd00562f7c225bcc25b2d422321d build by root@drbd01.localdomain, 2011-02-15 22:51:22 0: cs:Connected ro:Primary/Secondary ds:UpToDate/UpToDate C r ns:32913 nr:0 dw:145 dr:2621481 al:2 bm:6 lo:0 pe

Re: [DRBD-user] ko-count and blocking backing devices

2011-02-15 Thread Roland Friedwagner
Ok - the test case is ... Primary: $ cat /proc/drbd version: 8.3.10 (api:88/proto:86-96) GIT-hash: 5c0b046982443d4785d90a2c603378f9017b build by buildsystem@linbit, 2011-01-28 12:28:22 0: cs:Connected ro:Primary/Secondary ds:UpToDate/UpToDate C r- ns:102060 nr:0 dw:7168 dr:1

Re: [DRBD-user] ko-count and blocking backing devices

2011-02-15 Thread Lars Ellenberg
On Tue, Feb 15, 2011 at 12:23:10PM +0100, Roland Friedwagner wrote: > Hello, > > I stumbled over this one, when the firmware of a storage controller > on a drbd secondaryy gets upgraded and freezes io for about 1 minute. > Because drbd is the storage base of a kvm cluster (via iscsi) the > load of

[DRBD-user] ko-count and blocking backing devices

2011-02-15 Thread Roland Friedwagner
Hello, I stumbled over this one, when the firmware of a storage controller on a drbd secondaryy gets upgraded and freezes io for about 1 minute. Because drbd is the storage base of a kvm cluster (via iscsi) the load of all guests goes up very high and all writing prozesses in the guest freezes (th