From: Laurence Moughan (Laurence.Moughan@aerlingus.com)
Date: Wed Aug 09 2006 - 05:13:09 EDT
Not possible to offline dimms - however is possible to lilmit available memory
at boot time with the /etc/system setting physmem. This is a value in memory
pages,
eg
my 4GB system has
adb -kw /dev/ksyms /dev/mem
physmem 7c239
Which when hex is converted to dec = to 508473 pages
I wanted 2GB so 508473/2 = 254236
add to /set/system
physmem=254236
reboot
You can check via the above adb or check messages for
Aug 8 11:14:21 obedb1 unix: [ID 654388 kern.warning] WARNING: limiting
physmem to 254236 pages
Aug 8 11:14:21 obedb1 unix: [ID 389951 kern.info] mem = 4194304K
(0x100000000)
Aug 8 11:14:21 obedb1 unix: [ID 930857 kern.info] avail mem = 2048122880
Thanks
Laurence
............................................
Hello,
Wonder if it is possible to offline memory on a 480R ? - in the same fasion i
can offline a cpu with psradm ?
My box has 4gb made up of
Logical Logical Logical
MC Bank Bank Bank DIMM Interleave Interleaved
Brd ID num size Status Size Factor with
--- --- ---- ------ ----------- ------ ---------- -----------
A 0 0 512MB no_status 256MB 8-way 0
A 0 1 512MB no_status 256MB 8-way 0
A 0 2 512MB no_status 256MB 8-way 0
A 0 3 512MB no_status 256MB 8-way 0
A 2 0 512MB no_status 256MB 8-way 0
A 2 1 512MB no_status 256MB 8-way 0
A 2 2 512MB no_status 256MB 8-way 0
A 2 3 512MB no_status 256MB 8-way 0
would like to drop bix to 2gb for some urgent testing due toi an upgrade
rollback.
Or do i have to remove dimms physically ?
Thanks
Laurence
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http://www.aerlingus.com
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