[c-nsp] ASR1000 - Software Redundancy

[Christian Kratzer]

Hi,

On Wed, 1 Feb 2012, Antonio Soares wrote:

> Yes, lesson learned, no software redundancy at least with the RP1 which
> memory maximum is 4GB which means 700MB usable...
>
> In the meanwhile, I saw that it's possible to switch to the underlying OS
> and we can do linux commands like top:
>
> top - 03:50:16 up 12:22,  0 users,  load average: 0.21, 0.13, 0.09
> Tasks: 136 total,   2 running, 134 sleeping,   0 stopped,   0 zombie
> Cpu(s):  1.0%us,  2.6%sy,  0.0%ni, 96.0%id,  0.0%wa,  0.3%hi,  0.0%si,
> 0.0%st
> Mem:   3874968k total,  1707248k used,  2167720k free,   127152k buffers
> Swap:        0k total,        0k used,        0k free,  1075788k cached
>
>  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
>
> 25147 root      20   0 26784  14m  12m S  1.3  0.4   6:40.53 imand
>
> 23063 root      20   0 28008  10m 8136 S  1.0  0.3   4:51.46 cmand
>
> 25922 root      20   0 1916m 403m 142m R  0.7 10.7   9:42.53 linux_iosd-imag
> (...)
>
> We see lots of free memory so I suspect we can change the default values
> that IOSd is able to allocate.

if you search the archives there have been several threads on asr1k memory usage:

following posting claims that the memory allocated to ios is currently not configurable:

   https://puck.nether.net/pipermail/cisco-nsp/2011-August/080691.html

All this still does not explain following on a pair of asr1001 boxes

   cisco ASR1001 (1RU) processor with 1207124K/6147K bytes of memory.
   9 Gigabit Ethernet interfaces
   32768K bytes of non-volatile configuration memory.
   4194304K bytes of physical memory.
   7782399K bytes of eUSB flash at bootflash:.

this is explicitly without any software redundancy and the IOS still only sees 1G of the potential 2G it should bee seeing.

Greetings
Christian

-- 
Christian Kratzer                      CK Software GmbH
Email:   ck at cksoft.de                  Wildberger Weg 24/2
Phone:   +49 7032 893 997 - 0          D-71126 Gaeufelden
Fax:     +49 7032 893 997 - 9          HRB 245288, Amtsgericht Stuttgart
Web:     http://www.cksoft.de/         Geschaeftsfuehrer: Christian Kratzer