[Xen-users] Memory and other settings for xen server, help needed....

[Robin van Leeuwen <rvl@xxxxxxxxxxxxxx>]

Hi all,

i have a question. I'm going to setup a Xen server for a client.
It's going to serve about 25 clients.

It's a Athlon 64 3200+, which currently runs Debian i386-stable and xen 
2.0.7
until Xen 3.0 is stable enough, and then i'm gonna replace it with
Debian amd64-stable and Xen 3.0.

The Xen dom's consists of:

Samba , file printer sharing most active all 25 users all the time
             network io is a lot.
Mail      25 users, + webmail + clamav + spamassassin + amavis
Proxy    squid + squidguard + willowbark (uvscan, which cooperates with 
the www
            who does the actual scanning)
WWW   www server for about 25 concurrent users, who access the some of the
            samba files. Not very IO heavy but some disk IO is involved.
dom0  

Full spec's at bottom:

The server is a (overkill but it's going to last at least 5 to 7 years) :
AMD athlon 64 3200+
2 G internal DDR 400 Mhz
Sata drive (hdparm -Tt gives 1549/65.33 mb/sec)
radeon 9600 don't know how much mem, but who care's it won't be running X
Marvell Yukon Gigabit Lan onboard.

How should i divide the memory for the dom's , what about swap?
i was thinking:

DOM    MEM    SWAP
dom0   512      750
samba 768      250
www   256      100
proxy   256      100
mail   256      100

Any other suggestions are welcome....
any other info needed?
any tuning tips?

kind regards and thanks in advcance.

-------------

full specs:

lspci
0000:00:00.0 Host bridge: nVidia Corporation: Unknown device 00e1 (rev a1)
0000:00:01.0 ISA bridge: nVidia Corporation: Unknown device 00e0 (rev a2)
0000:00:01.1 SMBus: nVidia Corporation: Unknown device 00e4 (rev a1)
0000:00:02.0 USB Controller: nVidia Corporation: Unknown device 00e7 
(rev a1)
0000:00:02.1 USB Controller: nVidia Corporation: Unknown device 00e7 
(rev a1)
0000:00:02.2 USB Controller: nVidia Corporation: Unknown device 00e8 
(rev a2)
0000:00:06.0 Multimedia audio controller: nVidia Corporation: Unknown 
device 00ea (rev a1)
0000:00:08.0 IDE interface: nVidia Corporation: Unknown device 00e5 (rev a2)
0000:00:0a.0 IDE interface: nVidia Corporation: Unknown device 00e3 (rev a2)
0000:00:0b.0 PCI bridge: nVidia Corporation: Unknown device 00e2 (rev a2)
0000:00:0e.0 PCI bridge: nVidia Corporation: Unknown device 00ed (rev a2)
0000:00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge
0000:00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge
0000:00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge
0000:00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge
0000:01:00.0 VGA compatible controller: ATI Technologies Inc RV350 AP 
[Radeon 9600]
0000:01:00.1 Display controller: ATI Technologies Inc RV350 AP [Radeon 
9600] (Secondary)
0000:02:0a.0 Ethernet controller: Realtek Semiconductor Co., Ltd. 
RTL-8139/8139C/8139C+ (rev 10)
0000:02:0b.0 Ethernet controller: Marvell Technology Group Ltd. Yukon 
Gigabit Ethernet 10/100/1000Base-T Adapter (rev 13)
cat /proc/cpuinfo
processor       : 0
vendor_id       : AuthenticAMD
cpu family      : 15
model           : 47
model name      : AMD Athlon(tm) 64 Processor 3200+
stepping        : 0
cpu MHz         : 2009.785
cache size      : 512 KB
fdiv_bug        : no
hlt_bug         : yes
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 1
wp              : yes
flags           : fpu tsc msr pae mce cx8 apic mtrr mca cmov pat pse36 
clflush mmx fxsr sse sse2 pni syscall nx mmxext fxsr_opt lm 3dnowext 
3dnow pni
bogomips        : 4010.80



--

-----------------
Robin van Leeuwen

RLD Software - ICT Services
email: rvl@xxxxxxxxxxxxxx


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