Nexenta: MedFS iscsi migration steps

Brief description of migration steps

https://eis-vss.atlassian.net/wiki/spaces/VSS/pages/2063400961

Step	Details

Step	Details
check pre-failover of iSCSI pool	record results
make sure clustered VMs stopped	confirm with Administrator MedFS nodes
disable VSS Alarms on UGW	UGW: /local/adm/vss-alarms maint
remove VM name from vm-luns.txt	NSTOR15N
rename zvol and lun files in VM folder	Ex: root@nstor15n:~/migrate/all-luns/2010P-SQL-17-01
create new volume group	Ex: vg create -b 8K nstor15-vol10/vg-2010P-SQL-17-01
move zfs to new VG	Ex: for i in {1..6}; do echo zfs rename nstor15-vol10/2010P-SQL-17-01/lun21${i}_sql17_0304 nstor15-vol10/vg-2010P-SQL-17-01/lun21${i}_sql17_0304; done
run manual replication of stopped VM	screen -r bash -x ./manual_run_incr_replication.sh 2010P-SQL-17-01 > 2010P-SQL-17-01.log 2>&1
Rename zvol.txt and lun.txt files in VM folder	NSTOR15N
find the correct VMs folders on original iSCSI datastore	vCenter, VM Edit Settings
enable SSH on esxi251	vCenter>Configure>Services
using esxi251, copy .vmx .vmxf .nvram .vmsd from old VM to new VM folder	df [root@esxi251:~] cd /vmfs/volumes/CL-NSTOR11-iSCSI-vol81/2010P-SQL-17-03 mkdir /vmfs/volumes/N15-10-iSCSI-Rotman-syslun1/2010P-SQL-17-01 mkdir /vmfs/volumes/N15-10-iSCSI-Rotman-syslun1/2010P-SQL-17-02 ls -al /vmfs/volumes/N15-10-iSCSI-Rotman-syslun1/2010P-SQL-17-01 2010P-SQL-17-03] cp .vmx .vmxf .nvram .vmsd /vmfs/volumes/N15-10-iSCSI-Rotman-syslun1/2010P-SQL-17-01
using esxi251, copy none RDM vmdk from old VM to new VM folder	vmkfstools -i 2010P-SQL-17-03.vmdk /vmfs/volumes/N15-10-iSCSI-Rotman-syslun1/2010P-SQL-17-01/2010P-SQL-17-03.vmdk
using esxi251, copy the SECOND RDM vmdk from old VM to new VM folder
copy vmx,vmdk,… for the second VM	esxi251 , exsi252
using esxi251, copy none RDM vmdk from second old VM to second new VM folder
record the name of esxi server for both VMs	vCenter: esxi251 esxi252
select unused LUN IDs if possible	esxi151 : 511-516
map the LUNs	for i in {1..6}; do echo lunmapping create -b 512 -n 51${i} nstor15-vol10/vg-2010P-SQL-17-01/lun21${i}_sql17_0304 TargetGroup10 hg-prodesxi; done
rescan LUNs on all 4 esxi servers	vCenter
make sure new LUNs are visible and Attached on all 4x esxi	vCenter
register both VMs from new DS under new “-new” name and place in a test folder	vCenter
create affinity rule for both VMs	vCenter
remove old iSCSI RDM disk in vCenter just the reference NOT data	Edit Settings for both VMs
check booting: EFI or BIOS update VM version of both new VMs	vCenter, Edit Settings; Result: EFI
check current disks for both VMs	PS /Users/martynov/code-local/powershell> Get-VM -Name "2010P-SQL-17-01-new" \| Get-HardDisk PS /Users/martynov/code-local/powershell> Get-VM -Name "2010P-SQL-17-02-new" \| Get-HardDisk
list LUN IDs	history 0 \| egrep awk \|egrep sed lunmapping list \| egrep 2010P-SQL-SC-03 \| egrep -v syslun \| sort -k5 \| awk '{print $1}' \| sed 's/00000000$//' \| awk '{print "\""$1"\""}'\| paste -d"," -s -
prepare PowerCLI command	./win-cluster-add-luns.ps1 -vmname1 "X2010P-SQL-17-01-new" -vmname2 "X2010P-SQL-17-02-new" -datastore "N15-10-iSCSI-Rotman-syslun1" -esx1 "esxi251" -naaIds "9E6A1E546AACDB67","2133F4CC74DEFA70","DDD1E676C9C24074","8113AADD0A35F757","17CB90C0AC3243BD","3D005C568412FB77" ./win-cluster-add-luns.ps1 -vmname1 "2010P-FILE-05-new" -vmname2 "2010P-FILE-06-new" -datastore "N15-10-iSCSI-Rotman-syslun1" -esx1 "esxi251" -naaIds "9A65217493E23B0F","3A57124CFB2F52E9"
run PowerCLI command make sure all good check for unitNumber error	MacBook powershell> ./win-cluster-add-luns.ps1 -vmname1 "2010Q-S-SQL-SC-03-new" -vmname2 "2010Q-S-SQL-SC-04-new" -datastore "N15-10-iSCSI-Rotman-syslun1" -esx1 "esxi251*" -naaIds "1ADD…
check “-new” VM disks and Controllers	vCenter
update VMs version if EFI	vCenter
check that VM is not in vm-luns.txt or crontab	Ex: NSTOR15
re-enable VSS Alarms	UGW: /local/adm/vss-alarms default
move both “-new” VMs to same folder as original VMs	vCenter
create HPR replication	NSTORHSB27[NS]
disable SSH on esxi251	vCenter>Configure>Services
check HPR replication	Ex: hsb27n# hpr history n15-10-vg-2010P-SQL-17-01
Move original VMs to `VSS/Migrated-iSCSI-Keep`	vCenter