On Friday 19 March 2004 08:10, Anton Nikiforov wrote: > > I do not exactly know how to deal wth such a huge amount of data. The disk > subsytem is the must and i do undrstand this. SMP architecture is the must > also. I was asking is there any way that data will migrate from fast disk > subsystem to slower but relyible automaticaly. Like in Nivell Netware (i > used to work with it 7-8 years ago) you could ask the system if the file is > untached for a month - then move it from one disk to magnetic-optical or > tape but if this file is requested OS could move it back to the operational > volume.
Won't work for a database - it would have to sit there waiting while someone went to the vault, got a tape out and restored a few GB of data. You could separate out old data, say monthly into archive tables and then backup/drop those. -- Richard Huxton Archonet Ltd ---------------------------(end of broadcast)--------------------------- TIP 9: the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match