Re: Nexsan SATAboy setup
Jesper Krogh wrote: > > Hi. > > I've got a Nexsan iSCSI array. It has 4 different "data-adresses" that I > can all discover and get access to the volumes on the array through. > > But I'd prefer that my client instead of connnection to a single data-address > connected to all of them and balanced over them in order to distribute the > load automatically. Otherwise I have to manually tie up my clients to > specific data-ipadresses on the array. > > Is that doable? It depends on the hardware. Normally you could set node.startup = automatic for each record that was created when you did discovery (see the README for how to set that with iscsiadm or in the conf file). Then when you start the iscsi service or run iscsiadm by hand to login, it will create sessions to all the portals/addresses. You can then use dm-multipath to round robin over all the addresses. The hardware has to support this (sometimes it is called active-active mulitpathing, but your vendor might call it something else) though. In some cases if on the target there are two storage controllers and each controller has two portals, you might be able to load balance over the portals on a controller, then failover across the other contoller (the failover across the contoller portals is sometimes called active-passive, manual failover, automatic, but your vendor might call it something else). Again for that you can setup dm-multipath to do all that magic for you. > > Jesper > --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "open-iscsi" group. To post to this group, send email to open-iscsi@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/open-iscsi -~--~~~~--~~--~--~---
Re: Nexsan SATAboy setup
Jesper Krogh wrote: > > Hi. > > I've got a Nexsan iSCSI array. It has 4 different "data-adresses" that I > can all discover and get access to the volumes on the array through. > > But I'd prefer that my client instead of connnection to a single data-address > connected to all of them and balanced over them in order to distribute the > load automatically. Otherwise I have to manually tie up my clients to > specific data-ipadresses on the array. > > Is that doable? > Presumably, you could use something like multipath to manage this, but unless these addresses are accessed over different network hardware, there's no distribution of load possible. Regards Matthew --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "open-iscsi" group. To post to this group, send email to open-iscsi@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/open-iscsi -~--~~~~--~~--~--~--- begin:vcard fn:Matthew Wild n:Wild;Matthew org:Science and Technology Facilities Council;Space Science and Technology Department adr:Chilton;;Rutherford Appleton Laboratory;Didcot;Oxfordshire;OX11 0QX;United Kingdom email;internet:[EMAIL PROTECTED] title:UK Solar System Project Manager tel;work:+44 (0)1235 445173 x-mozilla-html:FALSE url:http://www.ukssdc.ac.uk/ version:2.1 end:vcard
Nexsan SATAboy setup
Hi. I've got a Nexsan iSCSI array. It has 4 different "data-adresses" that I can all discover and get access to the volumes on the array through. But I'd prefer that my client instead of connnection to a single data-address connected to all of them and balanced over them in order to distribute the load automatically. Otherwise I have to manually tie up my clients to specific data-ipadresses on the array. Is that doable? Jesper -- Jesper Krogh --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "open-iscsi" group. To post to this group, send email to open-iscsi@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/open-iscsi -~--~~~~--~~--~--~---
