Cleaners & Striped disks

Posted in 1997

Scott Hanson — 4 Apr 1997 04:53:24 -0500 — source: Informix-list mailing list archive (1991-1998)

Hello all... I have an interesting one here. We have an HP-UX 9000 10.01 with Informix 7.12. The machine has 5x4.1GB disks allocated to Informix. Two of these disks are partitioned into 2x2GB. No problem. These contain rootdbs, llogspace and low use dbspaces The other three disks are striped using lvcreate to make 6x2GB partitions. The stripe size is 32K. These contain plogdbs and one dbspace spread accross the chunks. My question is...what is the optimum CLEANERS in this configuration? For the first two disks, 2 CLEANERS is appropriate right? For the last three I would assume 3 CLEANERS but I am not sure what impact this will have on checkpoint duration if the disks are striped. Scott -- Scott Hanson Independant Database Consultant Currently placed: shanson@gb.dhl.com