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Archived - Promise VTrak: RAID Head - Xsan (Metadata, Journal, and Data)

This article contains a script used to configure Promise VTrak RAID controllers for Xsan (Metadata, Journal, and Data).

This article has been archived and is no longer updated by Apple.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

#
# Promise VTrak E-Class configuration script
#
# Script Name: RAID Controllers: Xsan (Metadata, Journal and Data)
#
# Script Details: builds 4 LUNs from 16 drives (head unit only)
# 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 0 thru 3
#
#array -a del -d 0
#array -a del -d 1
#array -a del -d 2
#array -a del -d 3
#
# Build Metadata LUN
# RAID level: 1
# Physical Drives: 1, 2
# Alias: MetadataLUN
# Controller Affinity: 1
# Configuration options: Capacity all (default), 64K stripe size (default),
# 512 byte sector (default), Read Cache, Write Back
#
array -a add -p 1,2 -s "alias=MetadataLUN" -c 1 -l "alias=MetadataLUN, raid=1, readpolicy=readcache, writepolicy=writeback, preferredctrlid=1"
#
# Build Journal LUN
# RAID level: 1
# Physical Drives: 3, 4
# Alias: JournalLUN
# Controller Affinity: 2
# Configuration options: Capacity all (default), 64K stripe size (default),
# 512 byte sector (default), Read Cache, Write Back
#
array -a add -p 3,4 -s "alias=JournalLUN" -c 1 -l "alias=JournalLUN, raid=1, readpolicy=readcache, writepolicy=writeback, preferredctrlid=2"
#
# Build Data1 LUN
# RAID level: 5
# Physical Drives: 5, 6, 9, 10, 13, 14
# Alias: Data1
# Controller Affinity: 2
# Configuration options: Capacity all (default), 64K stripe size (default),
# 512 byte sector (default), Read Ahead, Write Back
#
array -a add -p 5,6,9,10,13,14 -s "alias=Data1" -c 1 -l "alias=Data1, raid=5, readpolicy=readahead, writepolicy=writeback, preferredctrlid=2"
#
# Build Data2 LUN
# RAID level: 5
# Physical Drives: 7, 8, 11, 12, 15, 16
# Alias: Data2
# Controller Affinity: 1
# Configuration options: Capacity all (default), 64K stripe size (default),
# 512 byte sector (default), Read Ahead, Write Back
#
array -a add -p 7,8,11,12,15,16 -s "alias=Data2" -c 1 -l "alias=Data2, raid=5, readpolicy=readahead, writepolicy=writeback, preferredctrlid=1"
#
# Perform Quick Init on all LUNs
# Note: Ensure any state filesystem data is destroyed
#
init -a start -l 0 -q 100
init -a start -l 1 -q 100
init -a start -l 2 -q 100
init -a start -l 3 -q 100
#
# END
#
Last Modified: Mar 19, 2014
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  • Last Modified: Mar 19, 2014
  • Article: HT4693
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