About aborzenkov

aborzenkov · ‎2014-08-16

Do you have any snapshots on source left over from previous SnapMirror?

aborzenkov · ‎2014-08-16

Snapshots "grow" when data contained in these snapshots changes. So after snapshot was taken some host activity resulted in large amount of changed data. You have to check what your hosts do - there is nothing NetApp can do about it.

aborzenkov · ‎2014-08-15

I'm not exactly sure what do you mean under "data store is changed", but as a general rule - volume name is relevant only during initial mount request. When request is completed client gets back opaque handle that is now used to access data. Renaming volume does not change this handle, so any client that had volume mounted under old name continues to access the same volume, even though it now has new name. That's probably what you observe. You need to remount data store to actually access new volume. There is no way to switch it on the fly.

aborzenkov · ‎2014-08-15

Single node cluster is trivial. As for 8.2 ... Just try to boot it in maintenance mode. Does it work?

aborzenkov · ‎2014-08-15

Just recreate CIFS service for vserver?

aborzenkov · ‎2014-08-14

Which update? You install new software anyway, you can install cDOT 8.2.x; there is no real dependency on previous 7-Mode version.

aborzenkov · ‎2014-08-14

Do you mean cluster itself or single cluster node? For cluster node - “system node rename”. There is no outage.

aborzenkov · ‎2014-08-14

Offlined!?! Wow … this is online operation which has no impact on client. But whatever works for you ☺

aborzenkov · ‎2014-08-14

I love field portal. It has everything but it is impossible to find anything unless you happen to know exact URL. Thank you!

aborzenkov · ‎2014-08-14

Just move LUN (rename it) out of qtree into whatever location - on the same volume - is appropriate. “lun move …”

aborzenkov · ‎2014-08-14

Strictly speaking it says “You must be running a minimum OS version of Data ONTAP 8.1.y”, but you are right, it is not 8.2 - was answering from memory. Sorry.

aborzenkov · ‎2014-08-14

First obvious question - NFS or FCP/iSCSI?

aborzenkov · ‎2014-08-14

Well, KB article mentioned says "do no attempt this procedure unless you are running 8.2". I do not have enough background to question it, although I recently installed 8.2.1 C-Mod on 3170 running 7G without any apparent issues.

aborzenkov · ‎2014-08-14

The only reason to use e0M is when you absolutely need separate physical management network and do not want to waste 1GbE (or 10G) for it.

aborzenkov · ‎2014-08-13

Do not be confused. You do not need to use e0M - any interface can be used to manage filer. You can add mezzanine card with 2 x 10G. You can't add more 1GbE to 2240.

aborzenkov · ‎2014-08-13

SVM sees only those volumes that had been allocated to it. It is cluster administrator who sees all aggregates. If you want to restrict it - assign aggregates exclusively to SVM and let vserver (not cluster) admin to do it. Makes sense in multitenant environment anyway.

aborzenkov · ‎2014-08-13

What is "mars" mentioned here several times? If I am allowed to ask

aborzenkov · ‎2014-08-13

Please show output of “aggr status -f”

aborzenkov · ‎2014-08-13

a) Data ONTAP is already downgraded b) I update SP from within SP, not from Data ONTAP. How Data ONTAP version matters here?

aborzenkov · ‎2014-08-12

You will need to at least install SnapMirror license and configure networking. You can also SnapMirror root volume, this will duplicate as much of configuration as possible. You will still need to reconfigure networking and reinstall licenses to remain compliant (licenses are filer specific).

aborzenkov · ‎2014-08-12

This means replacement disk was marked as failed in previous system. It is possible to unfail it in advanced mode, but there must be a reason why it was marked as failed in the first place.

aborzenkov · ‎2014-08-12

One possibility is to revert to the last snapshot. You do have snapshots enabled for vol0, do not you?

aborzenkov · ‎2014-08-12

1. so this is just detaching the shelf from a local SAS port and attaching it to the ATTO bridge? this should even work online, Could you provide link to NetApp document that confirms it? Hot shelf relocation was never supported. From Storage Subsystem Technical FAQ: Nondisruptive relocation or removal of storage shelves is a process referred to as single-shelf removal (SSR) and is not currently supported by NetApp.

aborzenkov · ‎2014-08-12

Why is it not hot add scenario? It was always possible to hot add shelves. Make sure that option disk.auto_assign (and disk.auto_assign_shelf if applicable to your version) is disabled and manually assign disks to required controller and pool. Then re-enable options if required.

aborzenkov · ‎2014-08-11

You could install 8.2 simulator and test SnapMirror with 7G.

Re: Unable to delete vserver peering(cdot 8.2.1)

Re: What caused this snapshot growth?

Re: 'Behind the scenes' change underlaying netapp volume of a VMWare datastore

Re: Lab Gear - v3040

Re: how to rename NetApp C-Mode System Name / Filer?

Re: Converting Ontap 7mod to Cmod

Re: how to rename NetApp C-Mode System Name / Filer?

Re: Removing qtree but keeping the LUN - C-mode 8.2.1

Re: cDOT - Maximum SVM Count?

Re: Removing qtree but keeping the LUN - C-mode 8.2.1

Re: Converting Ontap 7mod to Cmod

Re: 'Behind the scenes' change underlaying netapp volume of a VMWare datastore

Re: Converting Ontap 7mod to Cmod

Re: Which NIC should I use for SnapMirror?

Re: Which NIC should I use for SnapMirror?

Re: CDOT == Vista ?

Re: CDOT == Vista ?

Re: replace new disk with error

Re: Is SP/BIOS downgrade really needed when reverting from 8.2 to 8.1?

Re: Migrate or move data...

Re: replace new disk with error

Re: Share Access Control suddenly empty

Re: MetroCluster - adding existing shelves to ATTO stack

Re: MetroCluster - adding existing shelves to ATTO stack

Re: Snapmirroring 7-Mode to 7.3.6