On Tue, 26 Jun 2007 08:57:29 -0400, Frank Felitti <[EMAIL PROTECTED]> wrote:
>Ken, >Thanks for the feedback. We use EMC DMX-3s in our shop with mirroring so in >actuality the 3390-27 would be on 1 physical disk. So my concern would be >possible queuing on the back-end assuming PAVs will take care of the >front-end IOS queueing. Would the answer to this concern be to consider >using 3390-27s in a RAID 5 or RAID 10 environment where the data would be >striped across different physical disks. ? > I don't know the EMC equipment, are you certain there is a physical drive that in it? What you put on the volume and who uses it are still key. If you decide to stripe one really big tablespace over several volumes and then find you have unused space and start using it, then you have introduced more users which increases potential for delays. If instead of one really big tablespace you made many partitions and only DB2 accesses it then you might get more parallelism from DB2. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
