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Operating Systems AIX How can I manage redundant HMC upgrades with firmware upgrades? Post 302346923 by balaji_prk on Monday 24th of August 2009 11:59:07 AM
Old 08-24-2009
How can I manage redundant HMC upgrades with firmware upgrades?

Lets says I have 2 HMC's A and B, connected to a p570 managed system.

Right now the firmware level of the p570 is EM320_076 and that needs to be upgraded to EM340_095.

Now the HMC's are at V7R3.3 and as per the code matrix the HMC's needs to be upgraded to V7R3.4 Servicepack 2.

Now my query

1. Should I be upgrading both HMC A & B before upgrading the firmware of p570.

2. If I leave one HMC as it is and upgrade the other one only and then upgrade the firmware level on p570, will there be any issue?

let me know if I not clear.


Last edited by balaji_prk; 08-24-2009 at 02:00 PM.. Reason: Edited title

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relup(5)							       Files								  relup(5)

relup - Release upgrade file DESCRIPTION
The release upgrade file describes how a release is upgraded in a running system. This file is automatically generated by systools:make_relup/3,4 , using a release resource file ( .rel ), application resource files ( .app ) and application upgrade files ( .appup ) as input. FILE SYNTAX
In a target system, the release upgrade file should be located in the OTP_ROOT/erts-EVsn/Vsn directory. The relup file contains one single Erlang term, which defines the instructions used to upgrade the release. The file has the following syn- tax: {Vsn, [{UpFromVsn, Descr, Instructions}, ...], [{DownToVsn, Descr, Instructions}, ...]}. * Vsn = string() is the current version of the release. * UpFromVsn = string() is an earlier version of the release to upgrade from. * Descr = term() is a user defined parameter passed from the systools:make_relup/3,4 function. It will be used in the return value of release_handler:install_release/1,2 . * Instructions is a list of low-level release upgrade instructions, see appup(5) . It consists of the release upgrade instructions from the respective application upgrade files (high-level instructions are translated to low-level instructions), in the same order as in the start script. * DownToVsn = string() is an earlier version of the release to downgrade to. When upgrading from UpFromVsn with release_handler:install_release/1,2 , there does not have to be an exact match of versions, but UpFromVsn can be a sub-string of the current release version. SEE ALSO
app(5), appup(5), rel(5), release_handler(3erl), systools(3erl) Ericsson AB sasl relup(5)

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