Difference between revisions of "HooiMaanden"
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3 1 64 4192 75 50001FF300050B86 Link Down Not connected | 3 1 64 4192 75 50001FF300050B86 Link Down Not connected | ||
4 2 64 4192 75 50001FF400050B86 Link Down Not connected | 4 2 64 4192 75 50001FF400050B86 Link Down Not connected | ||
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0 Anonymous 50001FF8000505A8 2 1 WED MAY 19 02:33:25 2010 | 0 Anonymous 50001FF8000505A8 2 1 WED MAY 19 02:33:25 2010 | ||
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Enter: an Anonymous User ID, | Enter: an Anonymous User ID, | ||
Revision as of 10:04, 19 May 2010
How to manage and configure the Hooi Maanden
First some specs about the cluster:
- 12 x Dell R710
- 2 x Intel L5520 quadcore
- 72GB DDR3 ram
- 2 x 154GB 10K RPM SAS disks in hardware raid 1
- Intel 10Ge 82598EB network card
- Mellanox Infiniband MT25208 card
- iDRAC6 enterprice management card
- Onboard 1Ge network cards are disabled in the BIOS
- 6 x DDN SA9900
- 2 Controllers per cabinet
- Each controller has 20Gbit/s Infiniband connection to one of the Dell machines
- 5 disk drawers per cabinet, each drawer can have 60 disks
- Western Digital 5400RPM 2TB disks
The hostnames of the disk controllers:
- hooimaand-mngt-C37-1.ipmi.nikhef.nl
- hooimaand-mngt-C37-2.ipmi.nikhef.nl
- hooimaand-mngt-C38-1.ipmi.nikhef.nl
- hooimaand-mngt-C38-2.ipmi.nikhef.nl
- hooimaand-mngt-C39-1.ipmi.nikhef.nl
- hooimaand-mngt-C39-2.ipmi.nikhef.nl
Basic commands
When you're logged into a disk controller you'll find the following commands usefull. host, lun, disk, faults,
How to setup the Hooi Maanden
First off install the machines (for example with a base EL5 Quattor install) When you have a working system, install these packages:
yum install srptools opensm xfsprogs
This will install the packages you'll need for the Infiniband stack. After that were going to activate the Infiniband stack, so that the DDN Controller will see the connection and to hook them up to the disks.
/etc/init.d/openibd start sleep 3 /etc/init.d/opensmd start sleep 20 /usr/sbin/ibsrpdm -d /dev/infiniband/umad1 -c | sed -e "s/\(service_id\)/max_sect=4096,max_cmd_per_lun=4,\1/" > /sys/class/infiniband_srp/srp-mthca0-2/add_target
Now were going to login into the DDN disk controllers. There two options to use: serial cable or a telnet session. Our disk controllers have all ready a network connection, but where going to use the serial connection.
Configuring the DDN setup
Log into one of the DDN controllers, (the one where the infiniband connection to the machine is connected to). The default username and password is: admin, password. When you're logged in, type: lun. You'll see something like this:
LUN Label Owner Status (Mbytes) Size Tiers Tier list ------------------------------------------------------------------------------- 1 SATA_1 1 Ready 15261576 4096 1 1 2 SATA_2 2 Ready 15261576 4096 1 2 3 SATA_3 1 Ready 15261576 4096 1 3 4 SATA_4 2 Ready 15261576 4096 1 4 5 SATA_5 1 Ready 15261576 4096 1 5 6 SATA_6 2 Ready 15261576 4096 1 6 7 SATA_7 1 Ready 15261576 4096 1 7 8 SATA_8 2 Ready 15261576 4096 1 8 9 SATA_9 1 Ready 15261576 4096 1 9 10 SATA_10 2 Ready 15261576 4096 1 10 11 SATA_11 1 Ready 15261576 4096 1 11 12 SATA_12 2 Ready 15261576 4096 1 12 13 SATA_13 1 Ready 15261576 4096 1 13 14 SATA_14 2 Ready 15261576 4096 1 14 15 SATA_15 1 Ready 15261576 4096 1 15 16 SATA_16 2 Ready 15261576 4096 1 16 17 SATA_17 1 Ready 15261576 4096 1 17 18 SATA_18 2 Ready 15261576 4096 1 18 19 SATA_19 1 Ready 15261576 4096 1 19 20 SATA_20 2 Ready 15261576 4096 1 20 21 SATA_21 1 Ready 15261576 4096 1 21 22 SATA_22 2 Ready 15261576 4096 1 22 23 SATA_23 1 Ready 15261576 4096 1 23 24 SATA_24 2 Ready 15261576 4096 1 24
Here you see the different lun's and on which controller they are connected to. We have 4 machines and 2 controllers and 24 lun's. That means that 6 lun per machine. So lun 1,3,5,7,9,11 will be connected to the first machine. With the commands of How to setup the Hooi Maanden, you'll setup a basic infiniband connection to the controller from the machine. When you type in: host. You'll see:
Host Timeout Port LID Depth MaxMsgSize seconds Current GUID Rate(Gbps) Port Status ------------------------------------------------------------------------------- 1 1 64 4192 75 50001FF100050B86 20.0 Good 2 2 64 4192 75 50001FF200050B86 Link Down Not connected 3 1 64 4192 75 50001FF300050B86 Link Down Not connected 4 2 64 4192 75 50001FF400050B86 Link Down Not connected
Current Logins
Frame/ S_ID/ User Port MTU LID World Wide Name Login ------------------------------------------------------------------------------- Anonymous 1 2048 2 50001FF8000505A8 WED MAY 19 02:33:25 2010
The current login of Anonymous is the machine where you just did the commands standed above. Let's add this machine as a real user and give him some harddrives. Type in the following command: user add
Currently logged-in Anonymous Users:
ID User Name World Wide Name S_ID Port Time Logged in ---------------------------------------------------------------------------- 0 Anonymous 50001FF8000505A8 2 1 WED MAY 19 02:33:25 2010
Enter: an Anonymous User ID,
's' to specify a new Host User's world wide name, or
'e' to escape: 0
Enter: An alias name for the host user
(up to 12 characters accepted): HooiMaand-01
Host users can have their port access 'zoned', in order to limit which ports the host user is allowed to log into. By default, host users are given access to all the ports in the system.
Do you want to zone the host ports for this user? (y/N): y
Enter: For unit #1: A list of active ports in the range 1..4, (one per line), or
'e' to escape:
1
2
3
4
Enter: For unit #2: A list of active ports in the range 1..4, (one per line), or
'e' to escape:
1
2
3
4
Host users are limited to accessing specific LUNs, as follows: a host user may have its own unique LUN mapping, or a host user may use the anonymous LUN mapping.
The anonymous user LUN mapping is handled by the port ZONING command.
In either case, the LUN mapping applies on all the ports that the user has been zoned for.
Do you want to assign a unique LUN mapping to this user? (y/N): y
Enter a new unique LUN mapping for this user.
Enter the unique LUN mapping, as follows:
G.l GROUP.LUN number P Place-holder R Before GROUP.LUN to indicate Read-Only N Clear current assignment <cr> No change E Exit command ? Display detailed help text
Map external LUN 0 to internal LUN: 1
Map external LUN 1 to internal LUN: 3
Map external LUN 2 to internal LUN: 5
Map external LUN 3 to internal LUN: 7
Map external LUN 4 to internal LUN: 9
Map external LUN 5 to internal LUN: 11
Map external LUN 6 to internal LUN: e
*** User ID 0: (HooiMaand-01, 50001FF8000505A8) has been added! ***
The new User's settings are:
Unit Port-Map ID User Name World Wide Name 1 2 Zoning Method ------------------------------------------------------------------------------ 0 HooiMaand-01 50001FF8000505A8 1234 1234 000,001 001,003 ...
LUN Zoning
ID User Name (External LUN, Internal LUN)
----------------------------------------------------------------------
0 HooiMaand-01 000,001 001,003 002,005 003,007
004,009 005,011
