First, let us make sure we are on the same page here.
High availability (HA) for the application server is one issue. High availability (HA) for the RDBMS is an entirely separate issue. Yes the application server is nothing without the DB. However, generally how you do HA for a DB is very different than how you do HA for an application server. Also understand that in most "Active-Passive" systems any transaction that is "in progress" when the Active node fails will likely not complete. The user will normally have to re-try the operation. (And that is also true for some "Active-Active" systems too. ARS is one of those systems.) So if your goal is to "never have a single transaction be dropped" then you might have to look to other solutions for that kind of "fault tolerant" behaviour. I have used Sun Cluster Server software to manage a two node (v4.x) ARS server cluster in an Active-Passive mode. It worked very well. Due to the way the hardware was designed the fail over the outage time period was at least 10 minutes long, but could be extended to 20-30 minutes if there were other "fail over failures" during the process. (The "fail over failures" were normally EMC disks that would not release from the active node and would not re-attach to the passive node. ) HTH. -- Carey Matthew Black Remedy Skilled Professional (RSP) ARS = Action Request System(Remedy) Love, then teach Solution = People + Process + Tools Fast, Accurate, Cheap.... Pick two. On 11/22/06, Вербовик Максим <[EMAIL PROTECTED]> wrote:
** Hi All. What kind of the best solution for 2 server configuration with production and backup licenses, where the first server have active state and the second in passive mode. The problem is in automating switching on the second server and auto-creating ticket in HD. I can't find solution in BMC manuals to solve this problem. Any software and hardware? С уважением, With best wishes, Вербовик Максим Системный архитектор Техническая дирекция INLINE Technologies Телефон: +7 (495) 721 3505 (доб. 393) Факс: +7 (495) 131 4529 Моб.: +7 (926) 351 6738, +7 (927) 200 2520 Maxim Verbovik System Architect Technical management INLINE Technologies Tel.: +7 (495) 721 3505 (ext. 393) Fax: +7 (495) 131 4529 Mob.: +7 (926) 351 6738, +7 (927) 200 2520
