Re: Globalsan iSCSI initiator vs Synology DS1511+ multipath I/O

Hi Alex ,

In fact we are discussing a solution wthout dedicated iscsi server. The synology device hosts the iscsi target and has therefore extra cpu power and memory compared to its smaller siblings.
Of course this solution has its limitations where it concerns multiple concurrent connections.
For that Bobs server attached storage in combination wth xtarget software sharing this storage via iscsi has much more possibilities.
Also the more professional solution could use a dedicated iscsi adapter, which takes care of the iscsi translation and saving lots of cpu on the host ( which can be signifficant).

Regarding bonding, keep in mind that that is something very different then what we are discussing and is something lots of people mix up.
In channel bonding you bind 2 network adapters together (switch has to support this ) to form a wider pipeline. The single sessions from host to target are still limited to the max speed of a single connection ( in my case 1Gb) but more connections at the same can use the wider pipe. Also this creates redundency in case one connection brakes
MPIO - multi path i/o, or MC/S - multimple connections per session, (both sligthly differrent) allow for a single connection to the target to gain more speed by using the 2 channels at the same time, limited to the theoretical maximum of (in my case ) 2Gb.
This is what i am trying to achieve here.