About aborzenkov

aborzenkov · ‎2014-09-11

First, takeover after error is the same in both cases. For manual takeover, 7-mode starts serving data after all aggregates were taken online. C-Mode will move aggregate ownership one by one. So the period of unavailability for each aggregate is reduced.

aborzenkov · ‎2014-09-08

Check /etc/log/audit*, it should protocol all CLI and API actions.

aborzenkov · ‎2014-08-28

Yes.

aborzenkov · ‎2014-08-28

SVM does not perform any “load spreading” automatically. You can have volumes from multiple aggregates in the same SVM; but assigning your workload to these volumes is up to you as administrator.

aborzenkov · ‎2014-08-28

Well, you have one broken disk. Try “disk unfail -s 5a.11.1” (not sure if this is supported in your version).

aborzenkov · ‎2014-08-26

Simulator is in Toolchest, not in product list. It is not a product.

aborzenkov · ‎2014-08-26

Sorry, no idea about error messages.

aborzenkov · ‎2014-08-25

It is available on fieldportal. You need partner account to access it.

aborzenkov · ‎2014-08-25

Yes, you can split mirror without any issue. Just pay attention which plex is on which site.

aborzenkov · ‎2014-08-25

Atime updates are absolutely useless for LUN and VMware data stores, you can safely turn them off there. For CIFS it us up to you - do touched to know when file was accessed last time?

aborzenkov · ‎2014-08-25

No problem I'm aware of. This is used heavily in one of our solution.

aborzenkov · ‎2014-08-21

Administration Guide says, that to enable AD authentication you need full CIFS server and you cannot create CIFS server without CIFS license. Could you please show working setup with AD tunneling without CIFS license?

aborzenkov · ‎2014-08-20

You have to ask E-Mail administrator to investigate why E-Mail server rejects mails from NetApp. There is very little that can be done from NetApp side here. I vaguely remember that some versions had problems with Exchange, but again - you need to gather information from mail server first.

aborzenkov · ‎2014-08-19

For VSM lower to higher works, but not higher to lower. For QSM it is possible to replicate between any versions.

aborzenkov · ‎2014-08-19

No. It is not supported and I'm not aware of any way to establish SnapMirror from cDOT to 7-Mode.

aborzenkov · ‎2014-08-19

Technically - you can add second controller, it is simple enough. You will need short downtime because both must be rebooted to enable HA. You will also need additional cf license for existing controller. And of course you will need additional hard drives for new controller. From legal point of view - FAS2040 is end if sale, so there is no way to get it from netapp; and if you buy second hand, license is not transferable. So you really need to discuss it with your NetApp representative.

aborzenkov · ‎2014-08-19

Windows server starting with 2008 has native support for ALUA and does not need NetApp DSM as well.

aborzenkov · ‎2014-08-19

It is easier to put new controllers in old chassis. Then it becomes simple controller replacement which is documented on support site.

aborzenkov · ‎2014-08-19

As long as you are running at least 8.2.1 it is supported online. See Data ONTAP documentation for step by step procedure.

aborzenkov · ‎2014-08-18

What you observe is correct. Partner takes over serving data on behalf of failed controller, but paths to failed controller are no more available.

aborzenkov · ‎2014-08-18

What is latency between sites?

aborzenkov · ‎2014-08-18

Please explain what you mean. Licenses are associated with controllers, not chassis, so "empty chassis" cannot have any license, better or not. Or do you mean you have chassis with controller(s) but without disks?

aborzenkov · ‎2014-08-18

SnapDrive has nothing to do with volume management. And yes, VxVM offers many features that are not present in standard Dynamic Disks (which were derived from old VxVM actually).

aborzenkov · ‎2014-08-18

No. But there are WFA workflows available which re-create LUN after snapmirror based on raw data and metadata that was collected on the source. I do not know if (when) these workflows will be publicly available, so you should speak with your partner/NetApp contact about them. As far as I understand, this is expected eventually be included in 7MTT.

aborzenkov · ‎2014-08-18

Please boot into maintenance mode and use “ha-config show” to check current HA settings. Looks like your chassis is set to HA, which means it will disable external ports and try internal backplane connection.

Re: How HA failover and giveback in cluster mode is different from 7 Mode.

Re: Initiator Delete Logs

Re: Multiple SVM or Single?

Re: Multiple SVM or Single?

Re: Properly unfailling a disk

Re: How download simulator ontap 8.1 ?

Re: Performance Advisor Recommendations

Re: Looking for LUN Migrate .dar file

Re: How to transform a Metro Custer to a single Cluster

Re: Performance Advisor Recommendations

Re: any issues to add a qtree in addtion to a volume in /etc/exports file

Re: Cluster management AD authentication w/o a CIFS license

Re: Autosupport: We cannot receive any notification

Re: snapmirror fail when having mismatch verson of Ontap 7-mode

Re: SnapMirror from CMode to 7-Mode for DR

Re: FAS2040 - Single controller to Dual upgrade path?

Re: netapp FCP failover

Re: FAS2050 Chassis Swap

Re: Hot remove DS4243 on FAS3240

Re: netapp FCP failover

Re: Snapmirror running slow - 2MB/s over 10GbE

Re: FAS2050 Chassis Swap

Re: C-Mode NetApp LUNs not visible in Veritas Volume Manager

Re: LUN Migrations 7-mode to CDOT

Re: FAS3220 Dual Chassis HA interconnect error