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From: Sanjeev Neelarapu <sanjeev.neelarapu@accelerite.com>
To: "users@cloudstack.apache.org" <users@cloudstack.apache.org>
Subject: RE: Storagemigration / Primary Storages
Thread-Topic: Storagemigration / Primary Storages
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Date: Fri, 13 May 2016 06:05:10 +0000
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References: <1463069969.23015.72.camel@secretresearchfacility.com>
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archived-at: Fri, 13 May 2016 06:05:22 -0000

Hi Stephan,

Once the volume migration is successful then only CS will delete it from the=
 source storage. Please make sure that there are no issues with volume migra=
tions.

Best Regards,
Sanjeev N
Chief Product Engineer, Accelerite
Off: +91 40 6722 9368 | EMail: sanjeev.neelarapu@accelerite.com 


-----Original Message-----
From: Stephan Seitz [mailto:s.seitz@secretresearchfacility.com] 
Sent: Thursday, May 12, 2016 9:49 PM
To: users@cloudstack.apache.org
Subject: Storagemigration / Primary Storages

Hi!

We're currently migrating volumes from one to another storage with the goal=
 to get the source LUN freed to finally remove the whole storage.
This runs w/ ACS 4.8 and XenServer 6.5 with attached FC-Storages.

Interestingly, the free space not only decreases (as expected) on the target=
 LUN. Also the source LUN is running full during this progress.

By now, I did'nt dug too deep, but maybe anyone had seen this issue.
too? And maybe could give a hint for the reason? ;)

What we had was:
SAS-LUN	w/ Tag SAS
SATA-LUN w/ Tag SATA

Every offering is configured with the respective Tags.

What we prepared:
SAS-LUN2 w/ Tags SAS,SASNEW
SATA-LUN2 w/ Tags SATA,SATAMEW
SAS-LUN w/ Tag SASOLD (changed from SAS) SATA-LUN w/ Tag SATAOLD (changed fr=
om SATA)

Most of the volumes are migrated live via cloudmonkey as simple as:

migrate volume volumeid=3D[somevolume-on-"old"-lun] storageid=3DSATA-LUN2 li=
vemigrate=3Dtrue

Some of the migration-jobs ran into ACS timouts until we changed job.cancel.=
threshold.minutes to 240 (some of the bigger volumes took some amount of tim=
e).

Thanks for any suggestions.

- Stephan


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