First, give up on mod 9's and do 54's for that stuff :) Our biggest is about 5TB. It's about 110 mod 54's. It's divided into 6 file systems on 6 different volume groups. (Not a DB, but just files).
We did adjust the boot time interval of fsck so that all 6 don't get fsck'd on the same startup. Takes about 10 minutes on a file system at boot time (and I don't know if that is because of the size or the number of files). I don't think 8TB would be a problem. I'm not sure I'd put it all in the same volume group though. There probably isn't much of a need to, though, with a DB. Marcy "This message may contain confidential and/or privileged information. If you are not the addressee or authorized to receive this for the addressee, you must not use, copy, disclose, or take any action based on this message or any information herein. If you have received this message in error, please advise the sender immediately by reply e-mail and delete this message. Thank you for your cooperation." -----Original Message----- From: Linux on 390 Port [mailto:linux-...@vm.marist.edu] On Behalf Of Lee Stewart Sent: Monday, January 25, 2010 2:54 PM To: LINUX-390@vm.marist.edu Subject: [LINUX-390] Max # 3390s Hi all... We're working with a customer that someone has suggested to them that as we move their Oracle d/b from brand x to Linux on z, that we also move the actual d/b from their old SAN box(es) to mainframe disk (3390 images). The catch is that the d/b is about 8TB, and to my rough math that seems like 1100-1200 3390 mod 9s. Does Linux even support that many DASD devices? Does LVM? And yes, we are trying to reverse that decision and put the Linux OSs and Oracle code and swap space on 3390s, but put the d/b and DBA work spaces on the SAN (where big things fit better).... Lee -- Lee Stewart, Senior SE Sirius Computer Solutions Phone: (303) 996-7122 Email: lee.stew...@siriuscom.com Web: www.siriuscom.com ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
