Re: [Xen-users] DomU max 32GB memory

[Todd Deshane <todd.deshane@xxxxxxx>]

On Sat, Jun 18, 2011 at 5:17 AM, Bert Sarens <Bert.Sarens@xxxxxxxx> wrote:
> xentop - 13:16:37   Xen 4.0.1
> 2 domains: 1 running, 1 blocked, 0 paused, 0 crashed, 0 dying, 0 shutdown
> Mem: 100650084k total

this is 95.987400055 GB

So Xen sees all of the memory.

See Xen best practices for setting dom0 memory
http://wiki.xensource.com/xenwiki/XenBestPractices



 100384044k used, 266040k free    CPUs: 24 @ 2394MHz
>      NAME  STATE   CPU(sec) CPU(%)     MEM(k) MEM(%)  MAXMEM(k) MAXMEM(%)
> VCPU
> S NETS NETTX(k) NETRX(k) VBDS   VBD_OO   VBD_RD   VBD_WR  VBD_RSECT
>  VBD_WSECT
> SSID
>  database --b---      17974    0.0   67105024   66.7   67108864      66.7
> 1    1   281487   153774    2        0  4890212  1998411   40125562
> 45614704
>   0
>  Domain-0 -----r       1378    1.4   31989760   31.8   no limit       n/a
>  2
> 4    0        0        0    0        0        0        0          0
>  0
>   0
>
>
> Citeren "Todd Deshane" <todd.deshane@xxxxxxx>:
>
>> On Fri, Jun 17, 2011 at 5:09 AM, Bert Sarens <Bert.Sarens@xxxxxxxx> wrote:
>>>
>>> Dear all,
>>>
>>> I installed a xen hypervisor on a server with 96 GB ram.
>>> I chose 64Gb ram for one domU called database. However when the domU
>>> starts
>>> it only has 32GB memory available.
>>> I thought the max was up to 1TB. Am I doing something wrong?
>>> Operating system: debian amd64 squeeze.
>>>
>>> Thank you for your time,
>>> Bert
>>>
>>> Some info about my systems:
>>>
>>> dpkg -l results:
>>>
>>> ii  xen-hypervisor 4.0.1-2        The Xen Hypervisor on AMD64
>>> ii  xen-linux-syst 2.6.32+29      Xen system with Linux 2.6 for 64-bit
>>> PCs
>>> (me
>>> ii  xen-linux-syst 2.6.32-34squee Xen system with Linux 2.6.32 on 64-bit
>>> PCs
>>> (
>>> ii  xen-qemu-dm-4. 4.0.1-2        Xen Qemu Device Model virtual machine
>>> hardwa
>>> ii  xen-tools      4.2-1          Tools to manage Xen virtual servers
>>> ii  xen-utils-4.0  4.0.1-2        XEN administrative tools
>>> ii  xen-utils-comm 4.0.0-1        XEN administrative tools - common files
>>> ii  xenstore-utils 4.0.1-2        Xenstore utilities for Xen
>>>
>>> Xm info results:
>>>
>>> host                   : xennekeV2
>>> release                : 2.6.32-5-xen-amd64
>>> version                : #1 SMP Thu May 19 01:16:47 UTC 2011
>>> machine                : x86_64
>>> nr_cpus                : 24
>>> nr_nodes               : 2
>>> cores_per_socket       : 6
>>> threads_per_core       : 2
>>> cpu_mhz                : 2394
>>> hw_caps                :
>>> bfebfbff:2c100800:00000000:00001f40:029ee3ff:00000000:00000001:00000000
>>> virt_caps              : hvm hvm_directio
>>> total_memory           : 98291
>>> free_memory            : 259
>>> node_to_cpu            : node0:0,2,4,6,8,10,12,14,16,18,20,22
>>>                          node1:1,3,5,7,9,11,13,15,17,19,21,23
>>> node_to_memory         : node0:0
>>>                          node1:259
>>> node_to_dma32_mem      : node0:0
>>>                          node1:256
>>> max_node_id            : 1
>>> xen_major              : 4
>>> xen_minor              : 0
>>> xen_extra              : .1
>>> xen_caps               : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32
>>> hvm-3.0-x86_32p hvm-3.0-x86_64
>>> xen_scheduler          : credit
>>> xen_pagesize           : 4096
>>> platform_params        : virt_start=0xffff800000000000
>>> xen_changeset          : unavailable
>>> xen_commandline        : placeholder dom0_mem=32G
>>> cc_compiler            : gcc version 4.4.5 (Debian 4.4.5-10)
>>> cc_compile_by          : waldi
>>> cc_compile_domain      : debian.org
>>> cc_compile_date        : Wed Jan 12 14:04:06 UTC 2011
>>> xend_config_format     : 4
>>>
>>> Xm list resulst:
>>>
>>> Name                                        ID   Mem VCPUs      State
>>> Time(s)
>>> Domain-0                                     0 31976    24     r-----
>>> 615.0
>>> database                                     1 65536     1     r-----
>>> 9165.6
>>>
>>> On the database domU
>>>
>>> free -m
>>>              total       used       free     shared    buffers     cached
>>> Mem:         32764       3519      29245          0         11        100
>>> -/+ buffers/cache:       3407      29357
>>> Swap:         2047          4       2043
>>>
>>>
>>
>> How much memory does xm top (xentop) report?
>>
>> --
>> Todd Deshane
>> http://www.linkedin.com/in/deshantm
>> http://www.xen.org/products/cloudxen.html
>> http://runningxen.com/
>>
>
>
>
>



-- 
Todd Deshane
http://www.linkedin.com/in/deshantm
http://www.xen.org/products/cloudxen.html
http://runningxen.com/

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