RAID

This site is currently being updated.

RAID Controllers

Hostname	RAID Controller	OS	Misc.
Taro.unh.edu	Areca Technology Corp. ARC-1231 12-Port PCI-Express	RHEL 5	-
Pumpkin.unh.edu	Areca Technology Corp. ARC-1231 12-Port PCI-Express	RHEL 5	-
Tomato.unh.edu	3ware Inc 9000-series	RHEL 3.4	-
Gourd.unh.edu	Promise Technology, Inc. PDC20378 (FastTrak 378/SATA 378)	RHEL 3.4	-
	3ware Inc 7xxx/8xxx-series PATA/SATA-RAID
Pepper.unh.edu	Silicon Image, Inc. SiI 3114	RHEL 3.4	-
Einstein.unh.edu	Marvell Technology Group Ltd. MV88SX6081 8-port SATA II PCI-X	RHEL 5.3	-

Some quick notes on the RAIDs. This needs expanding.

The documentation for the controller should be available in /usr/local/doc/3dm2. There should be a deamon running, start it with "/etc/init.d/3dm2 start" With the deamon running, the device can be checked and manipulated using a web browser on the local machine pointing to http://localhost:888/. Log in as administrator with the root password.

More recently (2006) we no longer run this deamon, instead the RAIDS can be querried and controlled with tw_cli, in /usr/local/bin. Type tw_cli help for help. You must be root to run this program.

Examples (must be root):

tw_cli help info
tw_cli info c0     # info for card 0
tw_cli info c0 u0    # info for unit 0, Tells you it is RAID-5, Status OK, size, Stripe size
tw_cli info c0 p0  # info on disk0 on card0, size, serial number.
tw_cli info c0 p0 model # model number of disk (Maxtor 6B200S0)

Be totally wicked careful with any of the other commands PLEASE

TOMATO:

Contains a RAID with 12 Maxtor Diamond Max 10 drives (300GB, model number: 6B300S0). Data Sheet

Size: 300 GB
Spin: 7200 RPM
Buffer:  16 MB
Seek: <9 ms
Latency: 4.17 ms]
Current/Power - not specified. 1.2 Amp/ 15 Watt is a good guess

GOURD:

Contains a RAID with 8 Maxtor drives (251GB, Model number 7Y250M0)