[DRBD-user] Identifying High iowait on DRBD Computers

Robinson, Eric eric.robinson at psmnv.com
Thu Feb 17 18:11:23 CET 2011

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


Hi Bart,
 
Checked all that already. Main process using IO is kjournald. No sync
running. No failed RAID. Repeated NIC speed tests with iperf show almost
1Gb throughput.
 


________________________________

	From: bart.coninckx at telenet.be [mailto:bart.coninckx at telenet.be]

	Sent: Thursday, February 17, 2011 8:24 AM
	To: Robinson, Eric
	Cc: drbd-user at lists.linbit.com
	Subject: Re: [DRBD-user] Identifying High iowait on DRBD
Computers
	
	
	Eric,
	
	some things that come to mind:
	
	- have you verified with iotop what is using the I/O? 
	- or both nodes up to date? No sync running?
	- in case of protocol C: issue with the network connection?
Failed bonding cards? Drop of NIC speed?
	
	B.
	
	



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