Asset ID:	1-71-1007797.1
Update Date:	2010-01-12
Keywords:

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Solution Type  Technical Instruction Sure

Solution  1007797.1 :   Sun Fire[TM] v20z: How to Set up Mirroring (RAID 1E) on Internal Disks with Solaris[TM] 9 or later on x86  


PreviouslyPublishedAs
210784

Description
Prior to Solaris[TM] 9, x86, Update 7, there was no support for hardware RAID (Redundant Array of Independent Disks) on the Sun Fire [TM] v20z.

The LSI controller had challenges mirroring partitions created on the primary drive through the SCSI BIOS.

Also if the drives were set up to be mirrored on the system prior to the installation of an operating system, the Solaris[TM] installer only detected 4Gb of the RAID-configured drives.

Steps to Follow
While hardware RAID is suppose to be transparent to Solaris[TM] x86, the setup of RAID configuration is managed from within the OS.
See instructions below for setting up RAID.
NOTE: if console redirection is enabled and the serial port is used, refer to the "Sun Fire V20z Server User Guide" (817-5248-11) for the correct escape sequences (2.3 Escape Sequences for Remote Console Terminal).
1. Install the OS on the primary drive of the system.
2. Once this is complete, install update 116667-02 or later, as this provides the utility, raidctl, needed to setup the second drive for hardware RAID using the LSI 1020 controller.
3. With the OS booted up, login as root, and run the following command: raidctl -c disk1 disk2 where: disk1 = canonical name of the primary internal disk disk2 = canonical name of the second internal disk The disks must be specified by its respective canonical name, such as, c0t0d0. When you create a a RAID volume, the RAID volume assumes the identity of the first target in the disk pair (disk1). The second target (disk2) disappears from the system. Therefore, the RAID volume appears as one disk. For additional information on the different usages of the command, raidctl, please see the main page by typing at the command prompt: man raidctl.

For information on setting up hardware RAID for linux, please see Technical Instruction <Document: 1010776.1> .

Product
Sun Fire V40z Server
Sun Fire V20z Server
Sun Fire V20z Compute Grid Rack System
Solaris 9 Operating System for x86 Platforms
Solaris 9 12/02 (x86)
Solaris 10 Operating System

Internal Comments
This is specific for Solaris x86 only. The OS must be installed first, with the availability of the RAID utility, raidctl, from the installation of the needed patch.

RAID, LSI, mirror, Solaris, x86, v20z, v40z
Previously Published As
78875

Change History
Date: 2005-08-05
User Name: 25440
Action: Approved
Comment: Changed "above" to "later" in title for accuracy. Publishing.
Version: 8
Date: 2005-08-05
User Name: 25440
Product_uuid
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4c35c45b-4955-11d9-9607-080020a9ed93
5005588c-36f3-11d6-9cec-fc96f718e113

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