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Archived - Promise VTrak: First SAS-connected Expansion Chassis Only: Xsan (Data Only) configuration script

This article contains a script used to configure Promise VTrak SAS-connected Expansion Chassis for Xsan. This script is used in the event that a Promise VTrak RAID Controller has already been configured for use with Xsan, and that an Expansion Chassis is being connected to the already-configured RAID Controller.

This article has been archived and is no longer updated by Apple.

To create the configuration script, copy the text below beginning with the line "#Begin Copy" to the line "#End Copy" and paste the text into TextEdit, using these guidelines. Once you've created the script, follow the guidelines in this article to import the configuration script.


#Begin Copy
#
# Promise VTrak E-Class configuration script
#
# Script Name: SAS-connected Expansion Chassis: Xsan (Data Only)
#
# Script Details: builds 3 LUNs from 16 drives (expansion unit)
# in the recommended configuration for use with Xsan 2
#
# Script Assumptions: no arrays or logical drives created
# (uncomment out array deletion if needed)
# script works with either SATA or SAS configurations
#
# Global controller settings
# LUN Affinity: enabled [required]
# Adaptive Writeback Cache: enabled [optional]
# Host Cache Flushing: disabled [optional]
# Forced Read Ahead: enabled [optional]
#
# ctrl -a mod -i 1 -s "lunaffinity=enable, adaptivewbcache=enable, hostcacheflushing=disable, forcedreadahead=enable"
# ctrl -a mod -i 2 -s "lunaffinity=enable, adaptivewbcache=enable, hostcacheflushing=disable, forcedreadahead=enable"
#
# Delete any existing arrays
# Delete array 3 thru 5
#
#array -a del -d 3
#array -a del -d 4
#array -a del -d 5
#
# Build Data3 LUN
# RAID level: 5
# Physical Drives: 17, 18, 21, 22, 25, 26
# Alias: Data3
# Controller Affinity: 2
# Configuration options: Capacity all (default), 64K stripe size (default),
# 512 byte sector (default), Read Ahead, Write Back
#
array -a add -p 17,18,21,22,25,26 -s "alias=Data3" -c 1 -l "alias=Data3, raid=5, readpolicy=readahead, writepolicy=writeback, preferredctrlid=2"
#
# Build Data4 LUN
# RAID level: 5
# Physical Drives: 19, 20, 23, 24, 27, 28
# Alias: Data4
# Controller Affinity: 1
# Configuration options: Capacity all (default), 64K stripe size (default),
# 512 byte sector (default), Read Ahead, Write Back
#
array -a add -p 19,20,23,24,27,28 -s "alias=Data4" -c 1 -l "alias=Data4, raid=5, readpolicy=readahead, writepolicy=writeback, preferredctrlid=1"
#
# Build Scratch2 LUN
# RAID level: 5
# Physical Drives: 29, 30, 31
# Alias: Scratch2
# Controller Affinity: 2
# Configuration options: Capacity all (default), 64K stripe size (default),
# 512 byte sector (default), Read Ahead, Write Back
#
array -a add -p 29,30,31 -s "alias=Scratch2" -c 1 -l "alias=Scratch2, raid=5, readpolicy=readahead, writepolicy=writeback, preferredctrlid=2"
#
# Set up global spares
# Physical Drives: 32
# Type: Global spares, Revertible
#
spare -a add -p 32 -t g -r y
#
# Perform Quick Init on all LUNs
# Note: Ensure any stale filesystem data is destroyed
#
init -a start -l 3 -q 100
init -a start -l 4 -q 100
init -a start -l 5 -q 100
#
# END
#
#End Copy

Important: Information about products not manufactured by Apple is provided for information purposes only and does not constitute Apple’s recommendation or endorsement. Please contact the vendor for additional information.
Last Modified: May 17, 2013
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  • Last Modified: May 17, 2013
  • Article: HT1121
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