Sun Storage 6920 System
 

GCS>Sun Microsystems>Storage - Disk>Modular Disk - 6xxx Arrays
 

Content will be limited to a basic usage using the CLI or BUI interfaces
for creating profiles, and provide help with some usage failure scenarios
for this activity. Consider reviewing some of the following documents if you
are looking to perform actions beyond the scope of this document:

• Best Practices for the Sun StorEdge 6920 System, Version 3.0.1
• Sun StorEdge 6920 System CLI Quick Reference Guide, Release 3.0
•  <Document: 1009915.1>  Troubleshooting Sun StorEdge[TM] 6920 Configuration Problems
• Sun StorEdge 6920 System Administration Guide For the Browser Interface Management Software, Release 3.0

A. Start By Planning

You will want to review the contents of the Best Practices for the Sun StorEdge 6920 System, Version 3.0.1 and answer the following questions about the devices that will use this new profile:

1. Do you have a name and good description of this new profile you are about to create?.
2. Do you know the RAID level of pools that will use this profile?
3. Do you know the segment size of pools that will use this profile?
4. Will you need a dedicated hot spare?
5. Will you need read ahead capabilities?
6. What type of IO will the arrays be handling (small IOs, large IOs)

If all the information above is provided, continue to Step B.

B. Basic Usage Using Browser or SSCS interfaces

SSCS

Profile Creation usage for sscs, can be reviewed in the Sun StorEdge 6920 System CLI Quick Reference Guide, Release 3.0. The sscs usage for basic profile creation is as follows.

sscs create -r <raid level> -t <array_type> -s <segment size> -h <read ahead> -n <#_drives> -v <virtualization strategy> -p <stripe_size> -D <dedicated hotspare> profile <profile name>

example:

sscs create -r 5 -t bm_bandwidth -s 16K -h off -n 3 -v stripe -p 128K -D yes profile new_profile

This will create a profile named new_profile, with the attributes: RAID 5, Best Match Bandwidth, 16 Kilobyte raid segment size, read-ahead cache off, 3 drives in a VDisk, stripe across vdisks, vdisk stripe segment size of 128KB, and dedicate a hotspare.

The selection of the array type(-t) will force the creation of the VDISK to be on the array type specified. The following list shows which array configuration will be selected with an exact match:

Exact Match IOPS (2x4= 2 controllers 4 total disk trays)
Exact Match Bandwidth (2x2= 2 controllers 2 total disk trays)
Exact Match Capacity (2x6= 2 controllers 6 total disk trays)

If you select Best Match, the following list shows the search order from left to right when attempting to create space with the profile:

Best Match IOPS (2x4 > 2x2 > 2x6)
Best Match Bandwidth (2x2 > 2x4 > 2x6)
Best Match Capacity (2x6 > 2x4 > 2x2)

BUI

Profile Creation steps for the BUI can be reviewed in Sun StorEdge 6920 System Administration Guide For the Browser Interface Management Software, Release 3.0. Profile creation for the BUI interface of the 6920 is completed as follows:

1. Click on the Configuration Services or Common Array Manager Link.
2. Click on the Profile Tab.
3. Click on the Blue New Button. This will open a pop-up window. You will need to have pop-ups enabled to complete this task. If a new window does NOT appear or if an error message appears on the main page, go to Step C.
4. Complete the Name (mandatory) and Description (optional) fields for the profile you want to create.
5. Click the Next button.
6. Choose the RAID level, Segment Size, whether or not you want a Dedicated Hot Spare and also choose whether or not you want Read Ahead Capabilities for the pools you create using this profile. You will also determine the number of drives allocated for each pool created and also the array type to be used.
7. Click the Next Button.
8. Now you will choose the Virtualization Strategy (Concatenate or Stripe) and also Stripe Size.
9. Click the Next button
10. Review the Profile Summary page for accuracy and then click the Finish button.

At this point the Pop-Up window will disappear, and the main browser screen will refresh, and a success or failure message will be displayed in the Profile Summary page, and the profile will be listed in this page, sorted alphanumerically.

• If you received a failure notification, continue to Step C.
• If you received a success notification, you have validated that profile
  creation is complete.

C. Creation Failure.

Please review the following table for a failure message and corresponding action. Please follow the action that describes your symptom.

BUI

Message:
An error occurred. Please contact your system administrator

Message Action:
Please go to Step D.

Message:
The profile name contains invalid characters. The name can be up to 32 characters long and contain the following : "A-Z", "a-z", "0-9", "-", or "_". No Spaces are allowed.

Messages Action:
Use only correct characters when determining the profile name.

SSCS

Message:
Name contains illegal character(s)

Message Action
Use only correct characters when determining the profile name.

If a message is not listed, or an action above did not work, go to Step D.

D. Data Collection

Please collect the following information:

• Answers to Questions in Step A.
• 6920 Solution Extract, Reference document <Document: 1003756.1> How to collect an extractor from a Sun StorEdge[TM] 6920 (2.x and 3.x)
• The message given by SSCS or BUI(screen capture if possible)
• The command used, if by SSCS
• The following sscs output:

sscs list profile
sscs list profile <profile name>

NOTE: Screen captures of the summary page for each object could be used, as well, for BUI related creations.

Reference document <Document: 1007129.1> Validating Services on a Sun StorEdge 6920 Service Processor

F. Escalate

Provide the following:

• Description of what is not being displayed properly


• Results of Step E.


• Location of everything in Step D
  

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