I am preparing a Clariion CX-300 for TSM disk pools. TSM will be the only system so I can tune it from end-to-end. There will be two 4+1 RAID5 groups holding the disk pools. RAID5 or RAID3 are the only choices due to the number of disks that were purchased and the amount of space that I need.
The settings we are considering: Element size of 64k. This means a 256k write from TSM is one stripe. Cache block size of 16k. Larger I/Os for the disk pools larger cache blocks should work better. AIX Logical Volume block size of 64k. This will match the element size. Has anyone done this type of tuning and been able to test variations? Andy Huebner This e-mail (including any attachments) is confidential and may be legally privileged. If you are not an intended recipient or an authorized representative of an intended recipient, you are prohibited from using, copying or distributing the information in this e-mail or its attachments. If you have received this e-mail in error, please notify the sender immediately by return e-mail and delete all copies of this message and any attachments. Thank you.
