Hi
Jonathan,
I
don’t think its flawed myself. Maybe an HP 24 port switch with 10gbit uplink
would be worth the extra?
HP
2910AL-24G Switch - £1700
HP
10Gbit Dual SFP+ 10Gbit Module (J9008A) - £1300
Intel
SFP+ 10Gbit card - £500
In
theory your arrays could produce around 200Mbytes/sec each. Your actual
throughput on dual port ad team will produce about 180Mbytes/sec, 4 port might
produce 300mbytes+/sec. 10Gbit will produce 600Mytes/sec quite easily and
without the CPU overhead of teaming. The 10gbit need becomes greater if you add
more disks via external box to the server later.
If
10G is a no go then I would still make sure you get one of the new 1000ET Intel
cards.
As
for how many VMs you will be able to support well that is hugely dependant on
their load/use.
Rob
From:
xen-users-bounces@xxxxxxxxxxxxxxxxxxx
[mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Jonathan
Tripathy
Sent: 17 June 2010 13:18
To: Bart Coninckx;
xen-users@xxxxxxxxxxxxxxxxxxx
Subject: RE: [Xen-users] RAID10
Array
Hi Bart,
Through this very helpful mailing list, I have over time trimed and changed
my plans.
My current train of thought is to have 3 RAID10 arrays with 4 hot spares. The
storage server will create 2 LV per RAID Array, and export one LV to each
Xen node (So 6 Xen nodes per storage server). The storage server
will be connected to the xen nodes via ATA over Ethernet. Each machine will be
running 56 DomUs max, however this figure will be closer to around 30 I would
say.
Specs for storage server are as follows:
3U Broadberry 836E16-R1200B chassis (Black) with 1200W
high-efficient
(1+1) redundant power supply (Gold Level 93%) 16 x SATA/SAS
Hot Swap
drive bays, comprising of the following system validated
components:-
1x E5506 Intel Quad-Core Xeon 2.13GHz 4Mb Cache 4.8GT/s 80Watts
8GB
1333MHz DDR3 ECC Reg w/Parity CL9 DIMM Dual Rank
LSI MegaRAID SAS 9260-4i
(6Gb/s) RAID Controller
Intel® PRO/1000 PT Quad Server Adapter RJ45
10/100/1000 Quad Port
X8DTL-iF Serverboard with Dual Gigabit LAN & IPMI
Remote Management
Slimline DVD-RW Dual Layer Drive
RAID Controller
Battery Backup Module ( LSIiBBU07)
3U Rackmount rail kit included
2x 250Gb
2.5" Drives for Operating System (RAID 1 - Mirrored)
With of course 16 X 1.5TB 7.2k SATA Hard Drives
It would be really appreciated if you could please let me know how my current
plan is flawed :)
Many Thanks
Jonathan
