Re: ODS/Solaris2.6/disk farms

Maria L. Wilson wrote: > > Greetings, > > I am in the planning stages for an install of ODS 7.23.UC5 on a > SUN/Solaris 2.6 server that is connected to a disk farm. This disk farm > has 18 physical disks of 9G each. I'm not sure what software is > managing the disk's...but I believe it is Solstice. We are also > planning on replicating this system to another identical system with > Informix's Enterprise Replication and Sun's HA (High Availability) > software. > > Any issue's or gotcha's that I might want to be concerned with?? I am > not to familiar with "disk farms" or Solaris 2.6 and would like to avoid > any unnecessary ugliness! From my experience I will just recommend configuration: Favor mirroring over RAID5 and use stripping to improve performance. We have found that a good firmware stripe set made of N mirrored pairs [2xN drives] will exhibit performance between N and 2N times the throughput of a single drive and if the controllers are intelligent and cached head latency becomes a non-issue. Summary> for maximum performance make sure to use: 1) Intelligent subsystem (I am not familiar with the one you mention but we have used DG Clariion and EMC with great success, if Solstice can claim similar performance and features then ...). 2) Large non-volatile cache. 3) Mirror individual drives. 4) Use large stripe sets made from mirrored pairs. Art S. Kagel