The OSS is the "server", the OST is the "lun". An OST can only be mounted on one OSS node at a time. So active/active with 4 OSTs on 2 OSS nodes means you normally have 2 OSTs mounted on each OSS node, but can fail over the OSTs to the the other OSS node in case of OSS node failure. Kevin On Mar 7, 2014, at 7:06 AM, Laurent Herlaud wrote: > Hi, > > I have a question about active/active OST configuration. > > I have 2 OST in active/active with 4 OSS, 2 OSS mounted on each server. > Does i have to mount 2 OSS on OST1 and 2 OSS on OST2, or mount the 4 OSS on the 2 OST ? > > Thanks. > > --- > Ce courrier électronique ne contient aucun virus ou logiciel malveillant parce que la protection avast! Antivirus est active. > http://www.avast.com > > _______________________________________________ > HPDD-discuss mailing list > HPDD-discuss(a)lists.01.org > https://lists.01.org/mailman/listinfo/hpdd-discuss This e-mail (and any attachments) is confidential and may be privileged. Any unauthorized use, copying, disclosure or dissemination of this communication is prohibited. If you are not the intended recipient, please notify the sender immediately and delete all copies of the message and its attachments.