On Jun 30, 2008, at 19:19, Jeff Bonwick wrote: > Dump is mandatory in the sense that losing crash dumps is criminal. > > Swap is more complex. It's certainly not mandatory. Not so long ago, > swap was typically larger than physical memory.
These two statements kind of imply that dump and swap are two different slices. They certainly can be, but how often are they? > On my desktop, which has 16GB of memory, the default OpenSolaris > swap partition is 2GB. > That's just stupid. Unless swap space significantly expands the > amount of addressable virtual memory, there's no reason to have it. Quite often swap and dump are the same device, at least in the installs that I've worked with, and I think the default for Solaris is that if dump is not explicitly specified it defaults to swap, yes? Is there any reason why they should be separate? Having two just seems like a waste to me, even with disk sizes being what they are (and growing). A separate dump device is only really needed if something goes completely wrong, otherwise it's just sitting there "doing nothing". If you're panicing, then whatever is in swap is now no longer relevant, so over writing it is no big deal. _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
