Virtual Storage Tier – VST

An insight into Virtual Storage Tier – VST A few questions answered regarding VST 1. Is there data migration involved? No. Any time a read request is received for a block on a volume or LUN where the VST is enabled, that block is automatically subject to promotion. The promotion of a data block to ...

OnCommand Suite/DFM Plugin’s

DFM Plugins – And they are in one single location. 🙂 There has been plenty of pain trying to get multiple plugins for DFM. Several times I have wished for the DFM server/ OnCommand plugins to be available in a single repository. I am sure there are several who share my thoughts (and the pain). Each ...

Upgrading from RAID 4 to RAID DP

Checking the RAID type and config In this example the aggregate has two disks and is a R4 configuration. testfiler01*> aggr status -r aggr1 Aggregate aggr1 (online, raid4) (block checksums) Plex /aggr1/plex0 (online, normal, active, pool0) RAID group /aggr1/plex0/rg0 (normal, block checksums) RAID Disk Device HA SHELF BAY CHAN Pool Type RPM Used (MB/blks) Phys ...

RLM updates – A change from existing procedure

With the firmware updates with revisions above 3.1 the usual procedure of rlm update does not work. This is mentioned in detail in the rlm download section. Usual procedure Download the rlm firwware and copy it to the software folder software install rlm firmware rlm update and rlm reboot. For version 4.0 and above the ...

MetroCluster – Deleting a mirrored aggregate

This topic covers how a mirrored aggregate can be off lined and destroyed. Destroying a mirrored aggregate Remove a plex from a mirrored aggregate Offline a plex Destroy a plex Offline the remaining plex Destroy the aggregate 1.     Remove a plex from a mirrored aggregate An example of a mirrored aggregate Capacity details as with ...

How to convert a Data ONTAP node from one operating Mode to the other 1

This is a very interesting article I found from a NetApp KB. This was something that was considered a risk during the OnTap 8 c-mode infancy. There are some small changes to these as well. I have added my inputs at the end of this article. This is based on the experience I have while ...

Different Storage Configurations

Overview Starting in Data OnTap 7.3.1.1 additional information was added to the sysconfig command for the Storage Configuration. Possible System Storage Configurations:   Configuration Type Description Single-Path All storage in system is single-pathed Mixed-Path Some storage is single-pathed, some is multi-pathed Multi-Path All storage in system is multi-pathed Single-Path HA All storage in this system ...

nSANity

Overview nSANity Data Collector is a support tool designed to aide users and technical support in troubleshooting complex issues. nSANity is able to collect diagnostic and configuration data from a variety of components including: Data ONTAP Storage Controllers Windows 2003 and 2008 hosts VMware ESX hosts (excluding i variants) Linux hosts with kernel 2.6 Solaris ...

DFMDC

Overview DataFabric® Manager Data Collector (dfmdc) is a tool to collect data used by NetApp support when troubleshooting DataFabric Manager issues. The tool runs various dfm command, gathers up the log files, then consolidates them into a single compressed tar image which can be uploaded to NetApp for analysis. DataFabric Manager license is required on ...

Data Compression

Data Compression
The test was done on systems running OnTap 8.1.2 I plan to segment this into 2 areas: Information on compression Command Sets Implementing Data compression Information on Compression The responses for this feature has been quite positive and there seems to be eager queries from customers on this. I will not explain how compression works, ...

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