July 3, 2007 K2 Storage System Instruction Manual 377
Checking controller microcode
Checking controller microcode
As explained in the previous section, to check controller microcode, in Storage Utility
select the controller in the tree view and the microcode version is displayed.
Identifying disks
When you do maintenance or service work on your RAID storage, it is important for
many tasks that you positively identify the disk or disks on which you are working.
Your primary indicators for this are the numbering of the disks in Storage Utility and
the ability to flash the disk LED on a physical disk or a group of disks.
Disk numbering in Storage Utility uses the following conventions:
• Level 2 RAID disks are numbered with a normal decimal sequence, starting with
zero (0, 1, 2, 3, etc.). However, it is important to note that there is no disk 15. The
primary RAID chassis contains disks 0 through 14, while the Expansion Chassis
contains disks 16 through 30.
• Level 3 RAID disks are numbered with a hexadecimal convention, as follows:
In addition, Storage Utility’s Identify feature allows you to flash the disk LEDs so that
you can physically locate a specific disk module or group of disk modules that make
up a LUN. Always use the disk identify feature before removing and replacing a failed
disk module. Accidentally removing the wrong disk module can destroy all data on
the disk drives.
To identify RAID disks do the following:
1. Open Storage Utility and in the tree view expand all nodes so that all disks are
Chassis Disk numbers, from left to right, facing chassis front
Primary 000102030405060708090A0B0C0D0E
First Expansion 101112131415161718191A1B1C1D1E
Second Expansion404142434445464748494A4B4C4D4E
Third Expansion 505152535455565758595A5B5C5D5E
Fourth Expansion808182838485868788898A8B8C8D8E
Fifth Expansion 909192939495969798999A9B9C9D9E
Sixth Expansion C0C1C2C3C4C5C6C7C8C9CACBCCCDCE
Seventh ExpansionD0D1D2D3D4D5D6D7D8D9DADBDCDDDE
Disk51
Chassis
number
For example, in Expansion Chassis five, disk one
Disk
number
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