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Storage and Backups-Netapp
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

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.

Read article
Aggregate creation fails in a MetroCluster with error: An aggregate already uses aggr0 as name

Applies to

  • ONTAP 9
  • MetroCluster

Issue

  • Aggregate creation fails with error
    Error: command failed: An aggregate already uses <duplicate aggr name> as name
Read article
How to create unique aggregate names in a MetroCluster

Applies to

  • MetroCluster
  • ONTAP 9

Description

This Article describes how to create unique aggregate names if accidently duplicate aggregate names got created.

Procedure

Read article
Is Dynamic POD Licensing supported in Fabric MetroCluster or Brocade switches

Applies to

  • MetroCluster
  • ONTAP 9
  • Brocade

Question(s) and Answer(s)

Is Dynamic POD Licensing supported in Fabric MetroCluster for Brocade switches?
  • Dynamic Licensing is supported in MetroCluster starting Ontap 9
  • Dynamic Licensing is not supported in 7mode MetroCluster

Is Dynamic POD Licensing supported in Fabric MetroCluster for Brocade switches?
  • Dynamic Licensing is supported in MetroCluster starting Ontap 9
  • Dynamic Licensing is not supported in 7mode MetroCluster

Read article
Should nodes in a MetroCluster DR Group be of the same controller type?

Applies to

  • MetroCluster
  • ONTAP 9

Question(s) and Answer(s)

Should nodes in a MetroCluster DR Group be of the same controller type?

In Data ONTAP, the controller forming a High Availability (HA) pair or a MetroCluster has to be of the same type.
If the system consists of different types, contact your NetApp Sales Representative to resolve the issue.

Should nodes in a MetroCluster DR Group be of the same controller type?

In Data ONTAP, the controller forming a High Availability (HA) pair or a MetroCluster has to be of the same type.
If the system consists of different types, contact your NetApp Sales Representative to resolve the issue.

Read article