On Thu, Jan 20, 2011 at 07:15:52AM -0800, jbygden wrote: > Hi! > > Is there any best practice on how to use iscsi with virtualization? > > I have a CentOS 5.5 server running as a KVM host for a couple of > guests. I have iscsi-initiator-utils (iscsi-initiator- > utils-6.2.0.871-0.16.el5) installed on this host. > > We have bought an Equallogic PS6000 iscsi array which is not yet fully > utilized. > > I thought that I'd create volumes in the PS6000 when I needed them, > populate them to the CentOS KVM host and attach the disks to the > virtual guests as needed. > > This is apparently not a good idea - since, as far as I can tell at > least, I have to restart the iscsi subsystem every time I present a > new disk from the PS6000. A "service iscsi restart" effectively > destroys all KVM guests using existing, already logged in iscsi disks > will hang indefinitely wondering where their disks disappeared to. > > So, is there any best practice regarding using iscsi disks with > virtualization? Or do I have to make up my mind immediately and create > all iscsi disks beforehand and not ever do any changes? >
No, you don't need to restart iscsi services. Just rescan. Also: did you consider using LVM on the iSCSI LUNs? -- Pasi -- You received this message because you are subscribed to the Google Groups "open-iscsi" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/open-iscsi?hl=en.
