just read my last post. this IS my answer... and yes, i've done that a thousend times! you CAN unmirror the disks to have a backup of the system but you don't need to!
yes we need to unmirror to have a backup of the system.
I do know how to unmirror the root filesystem, but I have some doubts that what all steps we should leave from the un-mirroring procedure, as we have to re-mirror the root disks again after patching.
Also will the unmirror steps be same for root and /opt,/usr etc. ?
As I have already said, no you do not need to break the mirrors in order to patch the system, just as you would not break the mirrors to add a new user account or add a new mount.
If you have an off line back from which you can restore the system quickly enough then breaking the mirrors just makes the whole process a lot longer.
If you wish to break the mirrors using metdetach(1m) then you run:
In your case:
The /etc/vfstab inside d20 will need amending to make it mount the actual device that is in d20 (i.e. /dev/dsk/c1t1d0s0 ) and when booting off it you will need to boot off the dev-alias in the OBP that points to that disk, if you are wanting to use the broken off sub-mirror to recover back to the state the machine was in before mirroring make sure you can boot off it before patching the other side of the mirror.
I can apply a patch cluster in the middle of the day without affecting my users at all. Then just after the end of the day, I can activate the patched environment and reboot. Total downtime just a few minutes.
Hi kamaldeep1986,
if I got your question true,question is do you need to unmirror your disks in case system patching. Absolutely "no". Suns patches upgrading enough often, you would not unmirror your disks every time when u need patch your system :)
Hello,
I'm very new to this forum and solaris -
I have solaris 5.10 installed on my machine (x86) and when I did a prerequisite check for Oracle Database 11g R2, it was showing the following patches are missing -
OS Patch:137104-02
OS Patch:120754-06
OS Patch:119961-05
OS Patch:119964-14... (3 Replies)
Dear All,
I have some 6 RedHat Servers ( 5.4 ) tikanga connected to the Intranet.
Some are Database Servers and application servers.
For the past 1.5 years , we have not installed any patches..
Is there any way to find out , whether these systems needs patches
and where to... (5 Replies)
Hey hi all,
I just recently encountered these question regarding patch installation, the scenario is like these that i have three patches a,b,c and each of them require a server reboot.And I don't have to reboot the server three times..i can reboot it only once.. so what should i do ?
Mine... (1 Reply)
Hi,
When we install patch on solaris box, if the server gets rebooted, do we need remove the patch and install? Or can we just re install? Please advise. (2 Replies)
Hi people:
I am having trouble installing some HPUX patches on my 11.00. I am a novice :confused: at this so bear with me. I do not understand how to install depots.
Now I'm trying to patch my system so I can get the Oracle client installed.
Oracle says I need these two patches:... (5 Replies)
HI: Thanks for your help
Im follow the steps describe on the link http://docs.hp.com/en/B2355-90772/ch06s01.html and have a diffetrent types of error messages and warning messages describes below:
on the step two
sh: PH* not found
on step three
*session started for user "root@test"... (0 Replies)
Discussion started by: RAFA
0 Replies
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I am having trouble installing some HPUX patches on my 11.00. I am a novice at this so bear with me. I do not understand how to install depots.
Now I'm trying to patch my system so I can get the Oracle client installed.
Oracle says I need these two patches: PHSS_21950, QPK_11.00.64
I go to:... (0 Replies)
Can someone tell me how to get the installation date of a patch? I've done a showrev which I assume tells me if the patch cluster has been installed. It shows...SunOS 5.8 Generic 108528-23 June 2003. I'm assuming June 2003 is the patch release date. Is that right? How can I determine the... (1 Reply)