Grass Valley K2 Storage System Instruction Manual v.3.2 Aug.01 2007 - Manual (Page 377)

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 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E
First Expansion 10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E
Second Expansion 40 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4E
Third Expansion 50 51 52 53 54 55 56 57 58 59 5A 5B 5C 5D 5E
Fourth Expansion 80 81 82 83 84 85 86 87 88 89 8A 8B 8C 8D 8E
Fifth Expansion 90 91 92 93 94 95 96 97 98 99 9A 9B 9C 9D 9E
Sixth Expansion C0 C1 C2 C3 C4 C5 C6 C7 C8 C9 CA CB CC CD CE
Seventh Expansion D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 DA DB DC DD DE
Disk51
Chassis
number
For example, in Expansion Chassis five, disk one
Disk
number