Re: [linux-lvm] Max storage size per system

[Jesse Keating <jkeating pogolinux com>]

On Friday 07 March 2003 06:20, Stephan Austermuehle uttered:
> Well, iSCSI was developed and pushed by some networking guys with
> Ethernet in mind to get into the storage market without developing know
> how for a really efficient data link. So iSCSI has to handle lots of
> overhead: SCSI commands are encapsulated in IP, IP is encapuslated in
> Ethernet. This leads to bad performance (latency, throughput) compared
> to a Fibre Channel connection with the same link speed. Maybe the
> performance impact will become negligible with 10G or 100G Ethernet but
> at the moment we don't have these technologies available.

This speaks nothing of HyperSCSI which is indepenant of TCP/IP and all of it's 
ugly overhead.  Hyperscsi runs in raw ethernet, no TCP/IP even need be on the 
wire.  Data writing w/ HyperSCSI is far faster than with NFS or iSCSI.

-- 
Jesse Keating RHCE MCSE
Pogo Linux -- Support Tech
tel: 888.828.7646