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3-6 Sun StorEdge A1000 and A3x00/A3500FC Best Practices Guide • November 2002
■ DacStore size is different between LUNs created under RAID Manager 6.0/RAID
Manager 6.1 vs. RAID Manager 6.1.1/RAID Manager 6.22x. See Section 3.2.7,
“DacStor Size (Upgrades)” on page 3-8.
■ LUN creation under RAID Manager 6.22x.
hot_add is a new command introduced in RAID Manager 6.22x and patch
106552-04 in RAID Manager 6.1.1_u1/2. It cleans up the Solaris device tree by
running devfsadm (Solaris 8 and later) or the following set of commands:
drvconfig, devlinks, and disks. hot_add was available in RAID Manager
6.1.1_u1/2 in /Tools/dr_hotadd.sh on the CD.
3.2.2 LUN Numbers
■ LUN numbers are allocated in sequence by RAID Manager 6 starting from zero.
■ The boot device has to be LUN 0.
■ You must always have a LUN 0. Refer to FIN I0573-2.
3.2.3 The Use of RAID Levels
■ See the "RAID Level" section in Chapter 2 in the Sun StorEdge RAID Manager 6.1.1
User’s Guide or Sun StorEdge RAID Manager 6.22 User’s Guide for various RAID
levels available on the A3x00 RAID controller. The configuration GUI also gives a
description of the RAID level selected during LUN creation.
■ RAID 1 and RAID 5 will take advantage of the hardware RAID controller to
improve performance and data availability.
■ RAID 0 LUN does not offer any redundancy. If a single drive fails, all data on the
LUN is lost (see the "RAID level" description in Chapter 2 in the Sun StorEdge
RAID Manager 6.1.1 User’s Guide or Sun StorEdge RAID Manager 6.22 User’s Guide.
3.2.4 Cache Mirroring
■ See the "Changing Cache Parameters" section under the "Maintenance and
Tuning" chapter in the Sun StorEdge RAID Manager 6.1.1 User’s Guide or Sun
StorEdge RAID Manager 6.22 User’s Guide.
■ Write cache is always turned off for a short duration ( ~ 15 min.) after a reboot or
reset of the A3x00 controller module until the battery is ready.
■ Write cache will be disabled when the battery strength drops below 80%.
■ Write cache will be off for all LUNs if the timer of the battery is greater then two
years. See Section 5.2.8, “Battery Unit” on page 5-13.
- Sun StorEdge 1
- A1000 and 1
- A3x00/A3500FC Best Practices 1
- Contents 3
- Contents v 5
- Contents vii 7
- Figures ix 9
- Tables xi 11
- Before You Read This Book 13
- How This Book Is Organized 14
- Using UNIX Commands 14
- Typographic Conventions 15
- Shell Prompts 15
- Related Documentation 16
- Accessing Sun Documentation 17
- Sun Welcomes Your Comments 17
- Troubleshooting Overview 19
- A3x00/A3500FC disk array 20
- 1.2.1 Documentation 21
- 1.2.2 Web Sites 22
- 1.2.3 Internal Directory 22
- Supported 23
- 1.2.6 Serial Cable 23
- 1.3 Tips for Filing a Bug 24
- 1.4 FINs and FCOs 24
- Date Product Description 25
- Hardware Installation and 31
- Configuration 31
- 2.1 New Installation 32
- 2.1.3 Power Sequencer 33
- 2.1.4 Local/Remote Switch 33
- Switch Settings 34
- 2.1.7 World Wide Name (WWN) 35
- Existing A3x00 Arrays 36
- Chaining Configurations 40
- 2.7 Supported Configurations 41
- 2.7.2 Onboard SOC+ 42
- 2.7.6 HBAs 43
- 2.8 SCSI to FC-AL Upgrade 44
- RAID Manager Installation and 45
- 3.1.1 Software Installation 46
- 3.1.2 Software Configuration 47
- 3.2 LUN Creation/RAID Level 49
- 3.2.2 LUN Numbers 50
- 3.2.3 The Use of RAID Levels 50
- 3.2.4 Cache Mirroring 50
- 3.2.5 Reconstruction Rate 51
- 3.2.7 DacStor Size (Upgrades) 52
- 3.4.1 NVSRAM Settings 53
- 3.4.2 Parity Check Settings 54
- 3.4.2.3 Parity Repair 55
- 4.1 Installation 58
- 4.2 Solaris Kernel Driver 58
- 0 0x0 0x0 0x0 0xe 0x12 59
- 4.3 format and lad 60
- 4.3.1 Volume Labeling 61
- 4.4.1 Removing Ghost Drives 64
- 4.5 Device Tree Rearranged 65
- 4.5.1.1 Workaround 66
- 4.6 SNMP 67
- Managers 68
- 4.7.3 Sun Cluster 69
- 4.7.4 High Availability (HA) 69
- 4.7.5 Quorum Device 70
- Maintenance and Service 71
- 5.1.1 Disk Drives 73
- 5.1.2 Disk Tray 74
- 5.1.3 Power Sequencer 75
- 5.1.4 SCSI Cables 76
- 5.1.5 SCSI ID Jumper Settings 77
- 5.1.7 LED Indicators 77
- 5.1.8 Backplane Assembly 77
- 5.1.9 D1000 FRUs 77
- 5.1.10 Verifying the HBA 78
- A3x00/A3500FC 78
- 5.1.12 Controller Board LEDs 79
- 5.2 FRU Replacement 80
- 5.2.2 Interconnect Cables 81
- 5.2.3 Power Cords 81
- 5.2.4 Power Sequencer 81
- 5.2.5 Hub 82
- 5.2.8 Battery Unit 83
- 5.2.7 Amount of Cache 83
- 5.2.9 Cooling 84
- 5.2.10 Disk Drives 84
- 5.2.11 Disk Tray 84
- 5.2.12 Midplanes 85
- 5.3.2 RAID Manager 6 Upgrade 88
- 5.3.3 Firmware Upgrade 88
- How to Recover 92
- 6.2 LUNs Not Seen 96
- Reinitialization 97
- VKI_EDIT_OPTIONS 100
- 6.4 Dynamic Reconfiguration 101
- Takes Too Long 102
- 6.6 GUI Hang 103
- Problems 103
- Manager 6.22 104
- is running 107
- reading past the end of the 107
- Reference 109
- A.1 Scripts and man Pages 110
- Information for CPRE/PDE 111
- PCI/SBus Systems 112
- A.4 A3500/A3500FC Electrical 113
- Specifications 113
- A.5 Product Names 115
- NVSRAM Product ID 116
- NUMERICS 117
- command, 6–17 119
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