Am 07.07.2012 11:23, schrieb Wojciech Puchar:
Fine. i understand that. What i am suggesting is not making large LUNs. you get the best performance with directly attaching disks to your machine.
That's simply not true. 99% of block latency is rotational. iSCSI It's not about iSCSI latency and overhead.
It's about other things i just don't want to explain anymore for people that just have to much money to spent to make things more complex and less efficient. It's just stupid, but it's OT so EOT
what are you trying to tell us here?
do you REALLY believe you local disks can outperform a SAN storage with 1 GB dedicated buffer cache und a DEDUCATED 1400 MHz CPU which is only optimized for one task: disk performance
you lcal storage has to fight for CPU and memory all teh time with other applications (caching etc.)
to believe under really high load a local storage is faster at the end is bullshit!