Eudora - shawfdong/hyades GitHub Wiki

Eudora is the Analysis Node of the Hyades cluster. It is a Dell PowerEdge R820 server, equipped with four (4x) 8-core Intel Sandy Bridge Xeon E5-4640 processors at 2.40GHz, and 512 GB memory.

Dell OpenManage Server Administrator (OMSA) reports that the RAID controller is a PERC H310 (see also Dell OpenManage):

# /opt/dell/srvadmin/bin/omreport storage controller
 Controller  PERC H310 Adapter(Slot 7)

but is actually a rebranded LSI MegaRAID SAS 2008:

# lspci | grep RAID
02:00.0 RAID bus controller: LSI Logic / Symbios Logic MegaRAID SAS 2008 [Falcon] (rev 03)

There are two (2x) 600GB Intel 320 Series SSDs on the RAID controller.

For maximum performance, a RAID-0 virtual disk (volume) is created from the 2 SSDs:

# /opt/dell/srvadmin/bin/omreport storage vdisk controller=0
Virtual Disk 0 on Controller PERC H310 Adapter (Slot 7)

Controller PERC H310 Adapter (Slot 7)
ID                                : 0
Status                            : Ok
Name                              : VD0
State                             : Ready
Hot Spare Policy violated         : Not Applicable
Encrypted                         : Not Applicable
Layout                            : RAID-0
Size                              : 1,116.75 GB (1199101181952 bytes)
T10 Protection Information Status : No
Associated Fluid Cache State      : Not Applicable
Device Name                       : /dev/sda
Bus Protocol                      : SATA
Media                             : SSD
Read Policy                       : No Read Ahead
Write Policy                      : Write Through
Cache Policy                      : Not Applicable
Stripe Element Size               : 64 KB
Disk Cache Policy                 : Enabled

There are 4 on-board Broadcom Ethernet interfaces:

# lspci | grep Ethernet
01:00.0 Ethernet controller: Broadcom Corporation NetXtreme II BCM57800 1/10 Gigabit Ethernet (rev 10)
01:00.1 Ethernet controller: Broadcom Corporation NetXtreme II BCM57800 1/10 Gigabit Ethernet (rev 10)
01:00.2 Ethernet controller: Broadcom Corporation NetXtreme II BCM57800 1/10 Gigabit Ethernet (rev 10)
01:00.3 Ethernet controller: Broadcom Corporation NetXtreme II BCM57800 1/10 Gigabit Ethernet (rev 10)

The first 2 (em1 & em2) are 10GbE interfaces; and remaining 2 (em3 & em4) are GbE interfaces.

There is a Mellanox ConnectX-2 VPI single-port adapter:

# lspci | grep Mellanox
41:00.0 InfiniBand: Mellanox Technologies MT26428 [ConnectX VPI PCIe 2.0 5GT/s - IB QDR / 10GigE] (rev b0)

which can be configured either as QDR InfiniBand or 10 GbE. Since the interface is InfiniBand by default, there is no need to modify /etc/rdma/mlx4.conf, which can be left blank (see also Pleiades).

The IP addresses of the network interfaces are (see also Hyades Networks):

Interface	IP Address	Network	Subnet	Netmask
em1	128.114.126.226	Public 10GbE	128.114.126.224	255.255.255.224
em2	10.7.7.3	Private 10GbE	10.7.0.0	255.255.0.0
em3	10.6.7.3	Private GbE	10.6.0.0	255.255.0.0
ib0	10.8.7.3	IPoIB	10.8.0.0	255.255.0.0
ipmi0	10.9.7.3	IPMI	10.9.0.0	255.255.0.0