Re: Urgent Sun Informix Performance Problem

Posted in 1994

Tim Read - Sun Linlithgow Snr SE and DB Amb. — 22 Mar 1994 10:38:55 GMT — source: Informix-list mailing list archive (1991-1998)

Anatoly, Yes. Sun spends a lot of time and effort making sure there are no bugs in the disk drives firmware. However, Sun conforms to the SCSI specification - we do not use any additional commands we just use what is defined correctly and in many cases push SCSI to the limit, which often breaks other vendors disk drives since their implementation of SCSI isn't up to it. The problems usually only occur when the system is driven to its limit by high I/O rates or long SCSI cables or when using features like tag queuing. Tim ---