If uptime is that critical it is time to look at increasing availability. We do that through the use of HA (High Availability) software. We used to run Mimix but now run Quick-EDD.
We do our daily backups on the HA machine.
Once a quarter we switch over to the HA machine. At that time we do a full system save and whatever it takes to get the primary to the latest PTF and OS level.
Since we run our HA lpar on a different box we also use that time to get the firmware upgraded and do any planned hardware maintenance.
-----Original Message-----
From: MIDRANGE-L <midrange-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of Gerald Magnuson
Sent: Monday, April 22, 2019 11:55 AM
To: MIDRANGE-L@xxxxxxxxxxxxxxxxxx
Subject: need to move from monthly full save, fix apply, IPL to semi-annually
Our business is now at the point where Sunday morning uptime is critical.
we have been performing a full save (restricted state, savsys, savlib *NONSYS, dlo, sav), followed by a IPL that will activate any fixes that have been applied...
we have been "aggressive" with applying fixes, but are comfortable leaving the system running for many months where it makes sense...
how do others perform patching and saving the OS on a twice a year basis?
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