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Asset ID: 1-71-1003561.1
Update Date:2009-12-27
Keywords:

Solution Type  Technical Instruction Sure

Solution  1003561.1 :   Sun StorEdge[TM] 33x0 and 351x: Host Channel LUN Assignments  


Related Items
  • Sun Storage 3510 FC Array
  •  
  • Sun Storage 3310 Array
  •  
  • Sun Storage 3320 SCSI Array
  •  
Related Categories
  • GCS>Sun Microsystems>Storage - Disk>Modular Disk - 3xxx Arrays
  •  

PreviouslyPublishedAs
205011


Description
This document outlines the number of LUNs that can be designated on the Sun StorEdge[TM] 3310, 3320, 3511, and 3510 arrays under different configurations.

Steps to Follow
Host Channel LUN Assignments
Sun StorEdge 3310/3320 SCSI Array
================================
- Maximum number of LUNs per host ID is 32.
- To achieve 128 partitions in a SCSI array, adjust the number of Logical
Drives (LDs) and host IDs.
For example:
4 host IDs x  4 LDs ==>32 x 4 = 128 LUNs
Sun StorEdge 3510 FC/3511 SATA Array (Loop Mode) - 3.x Firmware
======================================
- 4 host channels per controller (0, 1, 4, and 5)
- 8 host IDs per host channel (4 PID and 4 SID)
- 32 logical unit numbers (LUNs) per host ID
- 8 LDs per array
- 128 LUNs or partitions for each LD
Sun StorEdge 3510 FC/3511 SATA Array (Loop Mode) - 4.x Firmware
======================================
- 4 host channels per controller (0, 1, 4, and 5)
- 8 host IDs per host channel (4 PID and 4 SID)
- 32 logical unit numbers (LUNs) per host ID
- 32 LDs per array
- 32 LUNs or partitions for each LD
For example:
(4 host channels) x (8 IDs per channel) x (32 LUNs per ID) = 1024 LUNs per
array
Select the FC-AL protocol (loop mode)  for environments needing more
than 128 LUNs, or where a switched fabric network is not available.
It is preferable that no more than four IDs be assigned to a controller on
a given host channel.
Sun StorEdge 3510 FC/3511 SATA Array (Point-to-Point Mode)
================================================
- 4 host channels per controller
- 1 host ID per host channel.
- 32 LUNs per host ID
For example:
(4 host channels) x (1 ID per channel) x (32 LUNs per ID) = 128 LUNs per array
Note:
If each LUN needs to have dual paths, then 64 dual pathed LUNs are available.
Thus, in dual-controller configurations, either the primary or the
secondary controller can have an ID assigned, but not both.


Product
Sun StorageTek 3310 SCSI Array
Sun StorageTek 3320 SCSI Array
Sun StorageTek 3510 FC Array
Sun StorageTek 3510 2U FC Array
Sun StorageTek 3511 SATA Array

3310, 3510, 3511. 3320, Minnow, host channels, PID, SID, lun, 3000
Previously Published As
75499

Change History
Date: 2007-12-20
User Name: 7058
Action: Approved
Comment: Updates OK to publish.
Version: 7
Date: 2009-12-22
User Name: sue.copeland@sun.com
Action: Currency & Update
Date: 2007-12-20
User Name: 7058
Action: Accept
Comment:
Version: 0

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