Hi guys, im new to the list, and i apologise in advance to write this, but i've been reading a lot and i dont seem to find an answer to an specific question i have.
We are using Netapp to deploy nova volume to our openstack KVM instances, this means : #1 We have lots of phisical servers running kvm virtual instances #2 this physical servers connect against our netapp appliances through iSCSI #3 we attach this iscsi sessions to the instances for them to see it as a new block device ( the instances dont see it as an scsi session, just the phisical server ) The thing is, we want to be able to handle a 1 minute disconnection caused either by a storage reboot or a network outage ( both, no more than a minute o minute and a half ) What i want to understand and i dont seem to ( again, sorry ) is ... #1 what parameter/s to touch from the open-iscsi config on the physical host to handle that amount of time the dissconection #2 in the mean time, supposing i've touched thos parameters, all the data that needs to be writen and wont, were is it cached on the physical server side? in ram ? in our local disk ? #3 and those retries, i imagine i will see exactly the same in the physical and virtual side, are reflected till the connection is reestablished, as I/O wait just increasing, and CPU waiting for the write to finish ? Hope i made myself clear, and sorri if all my questions were answered and i wasnt able to find it. I'll wait for all your help to understand a little more. Thank you very much. -- You received this message because you are subscribed to the Google Groups "open-iscsi" group. To unsubscribe from this group and stop receiving emails from it, send an email to open-iscsi+unsubscr...@googlegroups.com. To post to this group, send email to open-iscsi@googlegroups.com. Visit this group at http://groups.google.com/group/open-iscsi?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
