Post SAP upgrade

[Cliff Lim Kok Hwee]

Recently SAP had just been upgraded on my cluster pair HPUX 11i servers.

After upgrade, performance from SAP running DB2 is quite slow according to application support team.

SAP consultant came back with a reply asking to increase the SCSI-queue-depth of the PVs in the SAP data vgs which will allow db2-agents to simultaneously do I/O to the LUNs that hold the data files.

Using /etc/scsictl -> /usr/sbin/scsictl.

Query: We are using EMC Fiber Channel disks. Are the requested applicable to our environment?

Cause i thought scsictl: Controls a SCSI device. Cause we do not really know the impact (if any) of running the /etc/scsictl command?

Thanks/cliff