Seagate ST39173WC Specifications Page 54
- Page / 122
- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
Rated. / 5. Based on customer reviews
3-10 Sun StorEdge A1000 and A3x00/A3500FC Best Practices Guide • November 2002
Caution – Modifying the NVSRAM settings via the nvutil (1M) command will
change the behavior of the controller. Use caution when executing this command.
3.4.2 Parity Check Settings
This section contains the following topics:
■ Section 3.4.2.1, “RAID Manager 6.1.1” on page 3-10
■ Section 3.4.2.2, “RAID Manager 6.22x” on page 3-10
■ Section 3.4.2.3, “Parity Repair” on page 3-11
■ Section 3.4.2.4, “Multi-host Environment” on page 3-11
3.4.2.1 RAID Manager 6.1.1
The RAID Manager 6.1.1 default setting is to run parityck (1M) once a day. This
setting can be modified via "Maintenance and Tuning." See the "Changing Automatic
Parity Check/Repair Settings" section in Chapter 6 in the Sun StorEdge RAID
Manager 6.1.1 User’s Guide.
If the I/O subsystem is very busy, it is likely that the parityck process will not
complete within 24 hours. In this case, a cron job can be created to run parityck
once a week or once every two weeks. The goal is to run parityck periodically, but
there should not be multiple parityck processes running on the same A3x00
module at any time. parityck takes up I/O resources in the controller.
Also refer to bug no. 4137421 which contains a script that can speed up the time
necessary to run parityck (checks LUNs in parallel instead of serially).
3.4.2.2 RAID Manager 6.22x
The RAID Manager 6.22x default setting for parityck (1M) is to run once a week.
A new option to parityck reports parity error without repair. See the man page
parityck (1M) for details.
If parityck (1M) finds a mis-matched data block and parity block, it reports the
mismatch (in /var/adm/messages and rmlog.log) and regenerates new parity
blocks.
You should run parityck with the “no repair” option, which is the default setting in
RAID Manager 6.22.1. See FIN I0825. This FIN describes how to override the default
from the GUI, which does not work as expected.
- 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
© 2020, manymanuals.com. All rights reserved. | 0.136 s |
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Comments to this Manuals