Cannot login to ATTO bridge from GUI but CLI works

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Cannot login to ATTO bridge from GUI but CLI works

Applies to

ATTO 7500N FibreBridge
Firmware 2.90

Issue

The ATTO bridge is not accepting logins from the GUI.
Otherwise, the bridge is functioning normally and logins via the serial console or telnet work with no issues.

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How to configure Cisco Discovery Protocol (CDP) in a MetroCluster IP

Applies to

MetroCluster IP
CDP
ONTAP 9.6 and earlier

Description

This article describes how to enable CDP in a MetroCluster IP environment.

CDP should be enabled on all the nodes part of the MetroCluster IP prior to ONTAP 9.7
It is enabled by default in ONTAP for cluster ports, but must be enabled explicitly for the other ports.

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MetroCluster MDV volume must be hosted on a mirrored aggregate

Applies to

MetroCluster
MDV (Meta Data Volume)
CRS (Config Replication Service)

Issue

MetroCluster MDV volume is not hosted on a mirrored aggregate.

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How to match LUNs NAA number to its serial number

Applies to

SAN
FlexPod

Description

A LUN Network Address Authority (NAA) number is a globally unique identifier for a LUN. The NAA number can be used to determine a LUN's serial number and vice versa.

Procedure

Data ONTAP operating in 7-Mode or clustered Data ONTAP 8.3 or later include a LUN command to obtain the LUN serial number in the hexadecimal format:

lun serial -x /vol/test/lun

Serial (hex)#: 0x486e542d4f5a2f47694d684b

Take the example of a LUN with the following NAA number:

naa.60a98000486e542d4f5a2f47694d684b

Remove the NAA string and the first 8 characters. In this example, naa.60a98000 (this is one of the NetApp vendor identifiers).

The remaining value (486e542d4f5a2f47694d684b) is the hexadecimal string which, when converted from HEX to ASCII, will be the LUN serial number. There are many Web-based tools to convert HEX to ASCII and vice versa if you are using a version of Data ONTAP that does not have the lun serial -x command available.

486e542d4f5a2f47694d684b in HEX converts to an ASCII value of HnT-OZ/GiMhK

You can either use the output of the command lun show –v , or review the 'LUN CONFIGURATION' section of a storage system’s autosupport output to determine which is the LUN, based on the LUN serial number in the ASCII format.

The following is an example of the output of the lun show –v command:

Filer1> lun show -v /vol/test/lun /vol/test/lun 5g (5368709120)(r/w, online, mapped) Serial#: HnT-OZ/GiMhK Share: none Space Reservation: disabled Multiprotocol Type: vmware Maps: test=0

Note the LUN serial number above (HnT-0Z/GiMhK). The LUN with naa.60a98000486e542d4f5a2f47694d684b is /vol/test/lun.

Note: For more information on identifying disks in a VMware ESX environment, see VMware article 1014953.

NetApp NAA prefixes are as follows:

Clustered Data ONTAP and Data ONTAP 7-Mode	naa.60a98000
Clustered Data ONTAP	naa.600a0980
E-Series	naa.60080e50

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LUN created using SDU is reported as misaligned when used with Oracle databases

Applies to

SnapDrive for windows
Snap Manager for Oracle (SMO)

Issue

From the NetApp storage system console, the lun show –v command reports the LUN to be misaligned:

netappstorage> lun show -v

/vol/orabackup_precg1asdl01/orabackup/orabackup_precg1asdl01_new.lun

/vol/orabackup_precg1asdl01/orabackup/orabackup_precg1asdl01_new

.lun 400.0g (429523992576) (r/w, online, mapped)

Serial#: HndnCZmKv33k

Share: none

Space Reservation: disabled

Multiprotocol Type: linux

Maps: precg1asdl01=0

Occupied Size: 6.5g (6926499840)

Creation Time: Mon Sep 10 14:25:43 MDT 2012

Alignment: misaligned

Cluster Shared Volume Information: 0x0

LUN created with the correct OS type setting (Linux) uses the fdisk -u –l /dev/sdxx command from the UNIX host to get this information.

Example output :

Disk /dev/sdbh: 429.5 GB, 429523992576 bytes

255 heads, 63 sectors/track, 52219 cylinders, total 838914048 sectors

Units = sectors of 1 * 512 = 512 bytes

Device Boot Start End Blocks Id System

/dev/sdbh1 8 838898234 419449113+ 83 Linux

Cause

Solution

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MetroCluster Check commands shows warnings while system is in switchover state

Applies to

ONTAP 9.1 and earlier

Issue

When running the metrocluster check command while in the switchover state, some checks return warnings:

ClusterA::> metrocluster check show Last Checked On: 4/21/2016 07:34:32 Component Result ------------------- --------- nodes warning lifs ok config-replication warning aggregates ok clusters ok 5 entries were displayed. ClusterA::> metrocluster check node show Last Checked On: 4/21/2016 07:34:32 Node Check Result --------------------- ------------------------------------ --------- ClusterA-01 node-reachable ok metrocluster-ready ok local-ha-partner ok ha-mirroring-on ok ha-mirroring-op-state ok symmetric-ha-relationship ok remote-dr-partner ok dr-mirroring-on warning dr-mirroring-op-state warning symmetric-dr-relationship ok remote-dr-auxiliary-partner ok symmetric-dr-auxiliary-relationship ok storage-failover-enabled ok has-intercluster-lif ok node-object-limit ok automatic-uso not-applicable ClusterA::> metrocluster check config-replication show -instance Enabled: true Running: true Recovery Steps: - Remote Heartbeat: ok Last Heartbeat Sent: 4/21/2016 08:20:32 Last Heartbeat Received: 4/21/2016 08:19:57 Recovery Steps: - Storage Status: ok Storage In Use: Cluster-wide Volume: MDV_CRS_1fa20d6af0df11e5942100a0985bb98a_A Storage Remarks: - Recovery Steps: - Vserver Streams: warning Recovery Steps: Run the "metrocluster vserver show" command for more details. Cluster Streams: warning Recovery Steps: Contact technical support for assistance.

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