RE: Using Large Disks under Solaris

Richard The simple answer is to purchase a decent Volume Manager, rather than use Disksuite or Format (supplied with Solaris). This is a question to think about when ordering hardware! You want as many disk spindles as possible for performance. The more data you put on a disk drive the less performance you can expect. If you don't have a problem, you can create a large filesystem (with few inodes) and create cooked chunks. Murray Wood -----Original Message----- From: Richard Auslander [SMTP:rich@airflash.com] Sent: Tuesday, October 26, 1999 8:28 AM To: informix-list@iiug.org Subject: Using Large Disks under Solaris Greetings all. Perhaps someone (besides Obnoxo) can help me with this? It would be greatly appreciated. I have observed that Informix has a chunk size limitation of around 2.01GB. In addition, on Solaris, we are able to define no more than 7 (and typically 6) partitions on a given hard disk. Although I am very aware of how to use 'onspaces' to combine multiple chunks into a single dataspace, it still appears that Informix under Solaris can support a maximum physical disk size of around (6 * 2.01 GB), which comes out to [I goed to colledge] around 12GB, assuming I *want* to make all the chunks the maximum of 2GB, which I often don't. We recently purchased a Sun E450, which we ordered with 18GB disks. In practive, I've been able to use only around 60-70% of the disk space purchased, and as disk densities increase, the problem will only worsen. Can someone pleeeez tell me that I'm wrong about this limit? ;-) Rich -- Richard C. Auslander Database Manager AirFlash, Inc. 1733 Woodside Rd., Suite #110 Redwood City, CA 94061 (650) 556-7928 www.airflash.com