IBM System Storage DS4000, Hardware Manual

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IBM Midrange System Storage Hardware Guide
Listing DS5000 subsystems in Linux
If you want to scan for all the DS5000s that are attached to your Linux host, you must use the
mpputil -a command, as shown in Example 7-9.
Example 7-9 mppUtil -a
[root@TC-2008 /]# mppUtil -a
Hostname = TC-2008
Domainname = (none)
Time = GMT 09/30/2009 04:34:27
---------------------------------------------------------------
Info of Array Module's seen by this Host.
---------------------------------------------------------------
ID WWN Type Name
---------------------------------------------------------------
0 60080e500017b5bc000000004a955e3b FC ITSO_5020
<--FC connected subsystem = ID #0
1 600a0b80004777d8000000004a956964 FC ITSO5300
---------------------------------------------------------------
In Example 7-9, two DS5000s are presented to the Linux host. Each one has an ID number
assigned. You use that number to query for specific details of the subsystem.
Displaying DS storage devices from Linux
In addition to the RDAC utilities, installing the Storage Manager host software gives you
access to the same utilities as in other operating systems, such as SMdevices.
In Example 7-10, we show the SMdevices output for the same system shown in Example 7-9.
Example 7-10 SMdevices output
[root@TC-2008 /]# SMdevices
DS Storage Manager Utilities Version 10.00.A5.13
...
..
/dev/sda (/dev/sg0) [Storage Subsystem ITSO_5020, Logical Drive TC-2008-1, LUN 0, Logical
Drive ID <60080e500017b5bc000047d04aaa2559>, Preferred Path (Controller-A): In Use]
/dev/sdb (/dev/sg1) [Storage Subsystem ITSO_5020, Logical Drive TC-2008-2, LUN 1, Logical
Drive ID <60080e500017b5bc000048444aafd60a>, Preferred Path (Controller-B): In Use]
<n/a> (/dev/sg2) [Storage Subsystem ITSO_5020, Logical Drive Access, LUN 31, Logical
Drive ID <60080e500017b5bc000043834a955f8a>]
<n/a> (/dev/sg3) [Storage Subsystem ITSO_5020, Logical Drive Access, LUN 31, Logical
Drive ID <60080e500017b5bc000043834a955f8a>]
<n/a> (/dev/sg4) [Storage Subsystem ITSO_5020, Logical Drive Access, LUN 31, Logical
Drive ID <60080e500017b5bc000043834a955f8a>]
<n/a> (/dev/sg5) [Storage Subsystem ITSO_5020, Logical Drive Access, LUN 31, Logical
Drive ID <60080e500017b5bc000043834a955f8a>]
/dev/sdc (/dev/sg6) [Storage Subsystem ITSO5300, Logical Drive TC-2008-Vol1, LUN 0,
Logical Drive ID <600a0b800047709c0000852c4abb84f4>, Preferred Path (Controller-A): In Use]
/dev/sdd (/dev/sg7) [Storage Subsystem ITSO5300, Logical Drive TC-2008-Vol2, LUN 1,
Logical Drive ID <600a0b80004777d800007e764abb86b6>, Preferred Path (Controller-B): In Use]
Notice the SMdevices output lists all the volumes found from any DS storage subsystem with
LUNs mapped to this host.