RE: Chunk size limit with 4 byte pages (64 bit Solaris)

>===== Original Message From tommi@epgmbh.de (Tommi M'kitalo) ===== >I tried it once on SCO OpenServer. It has the same limitations. Informix >on SCO does not even allow offsets larger than 2GB (it makes sense for me, >when they use 32-bit-signed values as lseek does). > >In the thread you mentioned I learned that I can divide my disk into 4 >partitions each 7 divisions. So I get 4 partitions x 7 divisions x 2 GB = 56 GB >maximum disk size. But it might not work on solaris. > >There are 2 possible solutions out of it: > > 1) use a logical volume manager > 2) use cooked space > >Using cooked space you specify a offset of 0 and size of 2 GB. You can use >as many files you want. It is a matter of solaris to handle adressing. >In the thread we discussed performance of cooked space. Someone mentioned >about 20-30% performace-loss in cooked space. And a loss of consistency >when the system crashes. There should not be any loss of consistency. Depending on your cache rate, and checkpoint lengths the 20-30% loss in i/o performance may or may not be horrible. Of course if you are putting a bunch of data on one huge disk, you might not be as worried about i/o throughput anyway. Will ------------------------------------------------------------ This e-mail has been sent to you courtesy of OperaMail, as a free service from Opera Software, makers of the award-winning Web Browser, Opera. Visit us at http://www.opera.com/ or our portal at: http://www.myopera.com/ Your free e-mail account is waiting at: http://www.operamail.com/ ------------------------------------------------------------