Quoting Andrew Hall <temp02@xxxxxxxxxxxxxxx>: > > Do you happen to have the same type disks in all these systems? That could > > > point to a disk cache "problem" (f.e. the disks lying about having written > > > data from the cache to disk). > > > > Or do you use the same disk parameters on all these machines? Have you > > tried using the disks w/o write caching and/or in synchronous mode > > (contrary to "async"). > > It's all pretty common stuff, quite a few customers use standard IDE > (various flavours of controller/disk), some now use SATA (again various > brands) and the rest use SCSI. The kernel we use is the standard Linus > approved kernel with the inbuilt drivers as part of the kernel. We don't > supply any non-default parameters to the disk controllers. > > Thanks for your suggestion on write caching, I'll look into this, I'm also > tempted to try a different journalling FS too. > > > ---------------------------(end of broadcast)--------------------------- > TIP 2: you can get off all lists at once with the unregister command > (send "unregister YourEmailAddressHere" to majordomo@xxxxxxxxxxxxxx) > I'm a little late on this thread but in regards to the SATA support. 2.4.29 in my experience is really the first kernel that decent SATA support (i.e. much better data throughput). I think that would corresponse to 2.6.9 or .10 but even before you get into all that. I am curious to know what do you mean by "standard Linus kernel". Do you not compile your own kernels for the hardware platform being used? -- Keith C. Perry, MS E.E. Director of Networks & Applications VCSN, Inc. http://vcsn.com ____________________________________ This email account is being host by: VCSN, Inc : http://vcsn.com ---------------------------(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
