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alanscopa2015
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December 4th, 2017 12:00
Failed trying to move meta-volumes
I tried following the instructions in the doc but not sure why it wont work. I currently have a local vplex set up with 6 luns from an array we are decoming. 4 are being used for meta and 2 for backups. I created 6 new luns from a target array to move this to. Someone please tell me what I am doing wrong?
I'm getting this message below.
VPlexcli:/> meta-volume create --name c1_meta_hwvnx02 --storage-volumes VPD83T3:600601602be03400135b697ad29fe711,VPD83T3:600601602be034003d6a5810d29fe711 This may take a few minutes...
meta-volume Evaluation of <
create: VPD83T3:600601602be034003d6a5810d29fe711]>> failed.
cause: Failed to create meta-volume at 'cluster-1'.
cause: Storage volumes must be from different storage arrays. Arrays available to the local cluster are displayed below along with their
connectivity status:
EMC-CLARiiON-APM00135150559 > ok
EMC-CLARiiON-APM00150422687 > ok
The current meta data is on EMC-CLARiiON-APM00135150559 > ok. I am trying to move them to EMC-CLARiiON-APM00150422687 > ok.
This is what I see on the vplex now.
VPlexcli:/clusters/cluster-1/storage-elements/storage-volumes> ll
Name VPD83 ID Capacity Use Vendor IO Type Thin Provision Thin
---------------------------------------- ---------------------------------------- -------- --------- ------ Status ----------- Rebuild Type Capable
---------------------------------------- ---------------------------------------- -------- --------- ------ ------ ----------- ------- --------- -------
VPD83T3:600601602be03400135b697ad29fe711 VPD83T3:600601602be03400135b697ad29fe711 80G unclaimed DGC alive traditional false legacy false
VPD83T3:600601602be034003d6a5810d29fe711 VPD83T3:600601602be034003d6a5810d29fe711 80G unclaimed DGC alive traditional false legacy false
VPD83T3:600601602be0340057b687bcd19fe711 VPD83T3:600601602be0340057b687bcd19fe711 80G unclaimed DGC alive traditional false legacy false
VPD83T3:600601602be034006be7bb35d29fe711 VPD83T3:600601602be034006be7bb35d29fe711 80G unclaimed DGC alive traditional false legacy false
VPD83T3:600601602be03400a03e6dead19fe711 VPD83T3:600601602be03400a03e6dead19fe711 80G unclaimed DGC alive traditional false legacy false
VPD83T3:600601602be03400ec818258d29fe711 VPD83T3:600601602be03400ec818258d29fe711 80G unclaimed DGC alive traditional false legacy false
VPD83T3:6006016049e036002f5d15363669e411 VPD83T3:6006016049e036002f5d15363669e411 80G meta-data DGC alive traditional false legacy false
VPD83T3:6006016049e03600315d15363669e411 VPD83T3:6006016049e03600315d15363669e411 80G meta-data DGC alive traditional false legacy false
VPD83T3:6006016049e03600335d15363669e411 VPD83T3:6006016049e03600335d15363669e411 80G meta-data DGC alive traditional false legacy false
VPD83T3:6006016049e03600355d15363669e411 VPD83T3:6006016049e03600355d15363669e411 80G meta-data DGC alive traditional false legacy false
VPD83T3:6006016049e0360080d464e69a46e511 VPD83T3:6006016049e0360080d464e69a46e511 80G meta-data DGC alive traditional false legacy false
VPD83T3:6006016049e03600846b0f759c46e511 VPD83T3:6006016049e03600846b0f759c46e511 80G meta-data DGC alive traditional false legacy false
configuration show-meta-volume-candidates
Name Capacity Vendor IO Status Type Array Name
---------------------------------------- -------- ------ --------- ----------- ---------------------------
VPD83T3:600601602be03400135b697ad29fe711 80G DGC alive traditional EMC-CLARiiON-APM00150422687
VPD83T3:600601602be034003d6a5810d29fe711 80G DGC alive traditional EMC-CLARiiON-APM00150422687
VPD83T3:600601602be0340057b687bcd19fe711 80G DGC alive traditional EMC-CLARiiON-APM00150422687
VPD83T3:600601602be034006be7bb35d29fe711 80G DGC alive traditional EMC-CLARiiON-APM00150422687
VPD83T3:600601602be03400a03e6dead19fe711 80G DGC alive traditional EMC-CLARiiON-APM00150422687
VPD83T3:600601602be03400ec818258d29fe711 80G DGC alive traditional EMC-CLARiiON-APM00150422687
VPlexcli:/clusters/cluster-1/system-volumes> ll
Name Volume Type Operational Health Active Ready Geometry Component Block Block Capacity Slots
------------------------------- ----------- Status State ------ ----- -------- Count Count Size -------- -----
------------------------------- ----------- ----------- ------ ------ ----- -------- --------- -------- ----- -------- -----
c1_meta meta-volume ok ok true true raid-1 4 20971264 4K 80G 64000
c1_meta_backup_2017Nov29_230014 meta-volume ok ok false true raid-1 1 20971264 4K 80G 64000
c1_meta_backup_2017Nov30_230016 meta-volume ok ok false true raid-1 1 20971264 4K 80G 64000
alanscopa2015
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Posted December 7th, 2017 12:00
Thank you for your reply.
Can you provide a step by step guide on how to do this? Currently we have 4 luns being used for meta and 2 luns for backup.
Thanks,
ankur.patel
2 Intern
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286 Posts
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Posted December 8th, 2017 05:00
Please reach out your project manager if you need assistance in doing so
Trying using these commands to move your meta volumes to a new array.
Meta Volume Moves to new array
present 4 new 80gb volumes from new array - DO NOT CLAIM THEM thru VPLEX
navigate to /clusters/cluster-1/system-volumes
run ll command - to list current system volumes
should show the following
cluster1 logging volume
cluster1 meta volume
cluster1 meta volume backup1
cluster1 meta volume backup2
navigate to /clusters/cluster-1/system-volumes/Cluster1-Meta-Volume
cd /components
run ll - should list the 2 VPD's of the 2 current volumes(luns) used for the meta volume
run command - configuration show-meta-volume-candidates
- you should see the 4 new 80gb volumes from the new array with VPD's
cd /clusters/cluster-1/system-volumes/Cluster1-Meta-Volume
run command - meta-volume detach-mirror -d VPD83T3:6008888888888d88bef88888888de888 --meta-volume CL1_META - this should be the VPD# from one of the original 80gb luns which you want to remove
*** attach new volume from new array
run command - meta-volume attach-mirror -d VPD83T3:600777777777777bef777777777de777 --meta-volume CL1_META - this should be the VPD# from one of the new 80gb luns from the new array
cd /clusters/cluster-1/system-volumes/Cluster1-Meta-Volume/components
run ll
newly added mirror will show error and critical failure - no worries - just need to wait while it syncs up
if you navigate to the /clusters/cluster-1/system-volumes/Cluster1-Meta-Volume/ and run the "ll" command it will provide an rebuild-ETA and percentage complete
wait until the rebuild process completes
navigate to /clusters/cluster-1/system-volumes
run the "ll" command
verify "health state" is ok for all 4 volumes
navigate to /clusters/cluster-1/system-volumes/Cluster1-Meta-Volume
cd /components
run ll - should list the 2 VPD's - one from each array now
repeat the meta-volume detach removing the old array
repeat meta-volume attach for the second leg of the cluster1 meta-volume using the new array VPD
wait for sync to complete
navigate to /clusters/cluster-1/system-volumes
verify Operational Status and Health Status of all volumes
navigate to /clusters/cluster-1/system-volumes/cluster1-metavolume/components
run ll
verify both VPD's are from new array
navigate to /clusters/cluster-1/system-volumes
- we still need to delete the 2 backup volumes and add the new ones from the new array
cd to one the MetaVolume backups
cd to the components - verify VPD is from old array
***delete the backup
run command - meta-volume destroy --meta-volume
run meta volume destroy command twice - one for each backup
navigate to /clusters/cluster-1/system-volumes
run ll - verify logging and Meta volume exist ( should be 2 in the output)
verify you still have 2 80gb volumes unclaimed to use for meta volumes backup
run command - configuration show-meta-volume-candidates
Reconfigure the backup schedule - this will allow you to use the 2 new volumes from the new array
cd /clusters/cluster-1/system-volumes
run command - configuraton metadata-backup
When asked "Do you want change the existing schedule?" - Select Y
It should list the 2 new volumes from the new array
you will have to specify the 2 volumes to use for backups
Please select volumes for meta-data backup, preferably from two different arrays (volume1,volume2):VPD#1,VPD#2
VPLEX is configured to back up meta-data every day at 23:00 (UTC).
Would you like to change the time the meta-data is backed up? [no]: You can select NO here if you don't want to the change the time
It should specify a summary with the backup time and which volumes it will use - verify VPD's are from new array
Would you like to run the setup process now? [yes]: yes - select YES for this question
Scheduling the backup of metadata...
Performing metadata backup (This will take a few minutes) - it will perform a backup which we can verify later
Successfully performed the initial backing up of metadata
Successfully scheduled the backing up of metadata
Successfully scheduled the metadata backup
The metadata backup has been successfully scheduled.
navigate to /clusters/cluster-1/system-volumes
run ll
you should now see 4 volumes listed
Logging
MetaVolume
MetaVolume1 - backup
MetaVolume2 - backup
You can change to the components folder of the MetaVolume, MetaVolume 1 Backup, and MetaVolume 2 backup to verify the VPD's are from the new array
***you can also verify the consistency on the meta volumes
run command - meta-volume verify-on-disk-consistency -c cluster
Unclaim 4 old luns
unmap from storage array
rediscover array and "forget unreachable luns"
run health-check or health-check --full
ankur.patel
2 Intern
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286 Posts
2682
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Posted December 5th, 2017 11:00
As the error states you have multiple arrays. VPLEX enforces that if you have multiple arrays that your meta legs be on different arrays.
Assuming you have this now, remove the old array, clean up the volumes, then recreate your meta and backups.