Hello All,
I was looking for general guidelines to enhance software iSCSI
performance by optimizing different
parameters at these layers of network stack on a host.

iSCSI
FirstBurstLength
MaxBurstLength
MaxRecvDataSegmentLength
InitialR2T     -- No
ImmediateData  -- Yes

TCP layer
Receive/send Buffer size
Disabling Nagle algorithm (on Targets)

NIC card
TCP segmentation offload
Rx/Tx checksum offload
Jumbo frames
NAPI

Questions
1. Does above mentioned iSCSI parameters are declared individually by
initiator/target OR target influences
these values ?
2. Is TCP tuning required in SAN networks which are Gigabit switched
network? If yes, should target be
   tuned differently from initators as it may handle multiple
connections?
3. what other parameters have to be considered when implementing
software based initiators and targets ?

Thanks for sharing your expertise and time

Regards
Padmanabhan
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