On Wed, 17 Apr 2002, John Summerfield wrote: > Or can I do better on a PC than you can on a mainframe?
John, the reason why large filesystems are challenging on S/390 is because the disk hardware is still tuned mostly for MVS, which does not use a fixed-block storage strategy. As a result, DASD tend to be of record/track/cylinder geometry and in standard sizes. Now there *is* a 10G size, but the common one these days is about 2.3G. S/390 does also have FBA (fixed block architecture) DASD devices. Sadly, even in the Linux world these are not widely known or used. I maintain that they should be employed heavily and heartily! The benefits are numerous.
